Lighting device, display device and television receiver

FIELD: electricity.

SUBSTANCE: invention relates to the field of lighting equipment. Lighting device (12) is equipped with a number of optical source cards (20) with variety of point optical sources (17) installed at them. Average colour tone of point optical sources (17) (POS) at each card (20) is in equivalent colour range defined by the square, and each opposite side of two square sides has coordinate length in the axis X equal to 0.015, and each opposite side of two square sides has coordinate length in the axis Y equal to 0.015 at the colour space chromaticity chart of International Commission on Illumination as of 1931. POS are categorized into three colour ranges defined by squares, at that each side of the square has a length of 0.015. At that the second and third ranges adjoin the first one that includes the above equivalent colour range. POS cards include the first cards with installed point optical sources in the first and second colour ranges, and the second cards with installed point optical sources in the first and third colour ranges. The first and second POS cards are placed in sequence.

EFFECT: providing total emission of practically uniform colour.

26 cl, 17 dwg

 

The technical FIELD

The present invention relates to a lighting device, display device and television receiver.

The LEVEL of TECHNOLOGY

The liquid crystal panel included in the liquid crystal display device such as liquid crystal television receiver, doesn't emit light, so as a separate lighting device, you must use the device backlight. The device backlight placed behind the LCD panel (i.e. on the side opposite to the surface of the display), is known. It includes many light sources (such as LEDs).

Such a backlight device has a configuration in which are mounted the LEDs white light. LEDs white light have a tendency to appearance of deviations of white light. The device described in Patent document 1, it is known as a device that can generate white light of the desired color using LEDs white light, which have a tendency to occurrence of deviations of white light. In this lighting device, the arrangement of LEDs white light is adjusted to produce white light of the desired color.

Patent document 1: Publication of unexamined application for PA is UNT Japan No. 2009-54563.

The PROBLEM addressed by the INVENTION

In the device described in Patent document 1, the LEDs white light must be placed in such a way that the quantity of light emitted from a center of each adjacent LEDs located from each other at a minimum distance, ranged between 80% and 120% of the average total amount of light emitted by the LEDs white light. In this regard, the arrangement of LEDs white light is difficult to develop, and, consequently, to accommodate LEDs white light takes a long time.

The DESCRIPTION of the PRESENT INVENTION

The present invention is made considering the above circumstances. The aim of the present invention is to provide a lighting device which is capable of forming the radiation, essentially homogeneous common colors. Another objective of the present invention is to provide a display device containing the specified lighting device, and television receiver containing a specified display device.

Part of the SOLUTION

To solve the above problem, a lighting device in accordance with the present invention contains many boards light sources and multiple point light sources mounted on the printed circuit boards of the light sources are Point light sources, installed on motherboards light sources have a color, the average of which is equivalent range of colours. The color range is defined by a square, in which each of the two parties opposite sides, has a coordinate length X 0.015 and each of the two parties opposite sides, has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination (CIE) 1931

Generally, point sources of light have a tendency to occurrence of color deviation. These color deviations may cause the color deviation of the lighting device. In accordance with the present invention, the average color range is defined for each Board light sources, which are point light sources. Therefore, in the lighting device, the less likely the occurrence of color deviation. In particular, the average color is set in the equivalent range of colours. Equivalent color range is determined by the square whose each side, which is opposite parties has coordinate length on the X-axis of 0.015, and in which each of the parties, which is the opposite parties, coordinate has a length along the Y-axis 0,015 on the color chart color space International who Commission on Illumination in 1931 Equivalent color range, which is determined by the square whose each side, which is opposite parties has coordinate length on the X-axis of 0.015, and in which each of the parties, which is the opposite parties, coordinate has a length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931, is the range in which the color equivalent, and the color deviation can be detected with a smaller probability. When using this configuration, the occurrence of color deviation between multiple cards of the light sources is less likely. So the colors are aligned over the entire area. In particular, the films can be made almost uniform color.

Point light sources can be classified in the first color range, the second color range, and the third color range in accordance with their colors. The first color range can be defined by a square, each side of which may have a coordinate length of 0.015. The first color range may include the equivalent of the color range. The second and third color bands can be determined by squares, respectively. Each square can join the first color range and have parties, each of which can be supported by the reduction in length of 0.015. Board of light sources may include a first circuit Board of the light sources that are point sources of light in the first and second color bands, and the second circuit Board of the light sources that are point sources of light in the first and third color bands. The first Board of the light sources and the second circuit Board of the light sources can be placed alternately.

When using this configuration, the average color of the first circuit Board of the light sources and the second circuit Board of the light sources, which are placed alternately, slightly different from each other. Therefore, the occurrence of color deviation is less likely. Each side of the square is the coordinate length of 0.015, i.e. the actual length of the side between the points of adjacent corners of the square is 0,015.

Point sources of light in the first color range and point sources of light in the second color range can be placed alternately.

Point sources of light in the first color range and point sources of light in the second color range can be placed alternately on the first boards of the light sources. Point sources of light in the first color range and point sources of light in the third color band can be placed alternately on the second boards of the light sources.

Using this to is hence, adaptation to the adjacent point light sources on each Board light sources are adjacent color bands. Therefore, the color of adjacent point light sources are slightly different from each other. In particular, when displaying movies, the occurrence of color deviation is even less likely.

Point light sources can be classified in the first color range and a second color range in accordance with their colors. The first color range can be defined by a square, each side of which may have a coordinate length of 0.015. The first color range may include the equivalent of the color range. The second color range can be defined by a square adjacent to the first color range, and have parties, each of which can have a coordinate length of 0.015. Board of light sources may include a third circuit Board of the light sources, which are point sources of light in the first color range, and the fourth Board of light sources, which are point light sources in the first and second color bands. The third Board of the light source and the fourth Board of the light sources can be placed alternately.

When using this configuration, the average color of the first circuit Board of the light sources and the second circuit Board of the light sources, which are placed alternately, slightly different from each other. Therefore, the occurrence of color deviation less Vert is nice. Each side of the square is the coordinate length of 0.015, i.e. the actual length of the side between the points of adjacent corners of the square is 0,015.

Point sources of light in the first color range and point sources of light in the second color range can be placed alternately on the fourth boards light sources.

When using this configuration, the adjacent point light sources on each Board light sources are adjacent color bands. Therefore, the color of adjacent point light sources are slightly different from each other, and therefore, the occurrence of color deviation is even less likely.

Each of the cards of the light sources may have an elongated shape. Point light sources can be arranged in a line along the longitudinal direction of the circuit Board of the light sources.

When using this configuration, the placement of point light sources is determined in accordance with the placement of the boards light sources. Therefore, the placement of point light sources can be easily developed.

Point lights can be placed with equal intervals on each Board light sources.

When using this configuration, the placement of point sources of light does not change on the cards light sources. Therefore, even when resizing ovet the active device circuit Board of the light sources, however, can be used.

Each of the cards of the light sources may have an elongated shape. Board of light sources can be arranged in their longitudinal direction, while the Board of light sources arranged next to each other, can be connected using the connector.

Due to the production of circuit boards light sources of different length, that is, boards of light sources, which is a different number of point light sources connected using connectors, PCB light sources can be used in lighting devices of different sizes (or different lengths). Namely, for the lighting devices of different sizes do not need any other Board light sources. This contributes to cost reduction.

The connector may include a first connector and a second connector, coupled to each other. At least one of the first connector and the second connector may protrude outward from the edge of the PCB of the light sources relative to the longitudinal direction of the card light sources.

Because at least one of the first connector and the second connector protrudes outward from the circuit Board, the first connector and the second connector can be smoothly coupled with the connection placed near the first connector and the second connector.

The connector may have C is no ivory or white color.

Since the connector has a relatively high reflectivity, it is less likely that the connector absorbs light. Therefore, the occurrence of uneven brightness is less likely.

The base may have a horizontal projection of a rectangular shape. The fee may be located so that its longitudinal direction coincides with the longitudinal direction of the base.

When using this configuration, the number of circuit boards can be reduced compared with the number of cards placed so that their longitudinal direction coincides with the direction along the lowest side of the base. Therefore, the number of control units configured to control turning on and off of point light sources can be reduced, and hence the cost can be reduced.

Point light sources may be light emitting diodes.

When using such a configuration can be created by light sources with long life and low power consumption.

Point light sources may be light emitting diodes, which contain emitting blue light crystals with phosphors having emission maximum of the light in the yellow range and applied to the corresponding emitting blue light crystals to emit white light.

T the targeted light sources may be light emitting diodes, which contain emitting blue light crystals with phosphors having emission maximum of the light in the green range and having a maximum light emission in the red range and applied to the corresponding emitting blue light crystals to emit white light.

Point light sources may be light emitting diodes, which contain emitting blue light crystals with phosphors having emission maximum of the light in the green range, and emitting red light crystals. Each emitting blue light crystal and each emitting red light crystal are combined to emit white light.

Point light sources may be light emitting diodes, each of which contains a radiating blue light crystal, emitting green light crystal and emitting red light crystal combined to emit white light.

If light-emitting diodes made with the possibility of emission of white light, the occurrence of color deviation is more likely. For example, can be formed bluish-white light. When using this configuration, the present invention can be obtained even overall color, can be obtained the light almost uniform color.

Each point light source may include a radiating ultraviolet isochemical and phosphor.

Point light sources may include emitting the ultraviolet radiation from the crystals and the phosphors having the maximum light emission in the blue band, green band and red band, respectively.

When using such light sources is more likely the occurrence of color deviation. When using this configuration, the present invention can be obtained even overall color, can be obtained the light almost uniform color.

Point sources can be electrically connected in series.

When using this configuration, each point source is fed the same amount of current, and hence the intensity of the light emitted from the point light sources can be adjusted. Therefore, the uniformity of brightness in the illuminated surface of the lighting device can be improved.

The lighting device may further include lenses of the lens mounted on the printed circuit boards of the light sources in order to cover a point light source, and configured to scatter light from the point light sources.

Because the light is scattered lenses of the lens, the appearance of the dot image of the lamps is less likely, even if the interval between adjacent point light sources Uwe is icen. Despite the fact that the cost is reduced by reducing the number of point light sources, can be achieved practically uniform distribution of brightness. Moreover, thanks to the lenses of the lens color of light from the point light sources can be mixed, and therefore, the color deviation can be reduced. Thus, colors can be made even more uniform.

The lenses of the lens may be a light diffusing elements made with the possibility of dispersion of light.

When using lenses of the lens the light diffusion can be carried out properly.

In each of the lenses of the lens may be surface-treated by roughening the surface side of the Board.

Because the processing of the lens surface of the lens by roughening the surface, such as texturing, lens diffuser can diffuse the light even better.

To solve the problems described above, the display device in accordance with the present invention includes the above-mentioned lighting device and a display panel, configured to provide display using light from the lighting device.

The lighting device in such a display device can generate the vet almost homogeneous common colors. Therefore, the display device may provide a good display quality with less unevenness.

An example of the display panel is a liquid crystal panel. This display device is used as a liquid crystal display device in various fields, such as television or the screen panel of a personal computer, and particularly suitable for devices with a large screen.

Television receiver in accordance with the present invention includes the above display device.

When using such a television receiver may be provided with a device with high contrast without unevenness.

USEFUL EFFECT of the INVENTION

In the lighting device in accordance with the present invention can be obtained an almost uniform light overall color. Since the display device of the present invention includes such a lighting device, a display device may provide a display of good quality with less unevenness. Moreover, since the television receiver of the present invention includes such a display device, in accordance with the television receiver may be provided with a device with high contrast without neravnomernosti is.

BRIEF DESCRIPTION of DRAWINGS

Figure 1 - exploded perspective view illustrating the General construction of a television receiver in accordance with the first embodiment of the present invention;

Figure 2 - exploded perspective view illustrating the General construction of the liquid crystal display device included in the television receiver;

Figure 3 is a view in section, illustrating a section view of the configuration of the liquid crystal display device in the direction along the largest side;

4 is a view in section, illustrating a section view of the configuration of the liquid crystal display device in the direction along the lowest hand;

5 is a top view illustrating the placement of the boards of LEDs inside the base;

6 is an enlarged partial view in section, illustrating part of the installed on-Board LEDs;

Fig.7 is an enlarged partial view illustrating a part of the installed on-Board LEDs;

Fig is a schematic view for explaining an average color LEDs on each Board LEDs;

Fig.9 - color chart color space, created by the International Commission on Illumination (CIE) in 1931;

Figure 10 is an enlarged partial view is equivalent to the range of colors in Fig.9;

11 is an enlarged partial view illustrating the color is preset ranges of the LEDs in the backlight device of the second variant of implementation of the present invention, the colors are determined by the color graphics color space, created by the International Commission on Illumination (CIE) in 1931;

Fig is a schematic view illustrating placement of the LEDs in a variety of colour ranges on the boards of LEDs;

Fig is a schematic view illustrating other placement of LEDs in a variety of colour ranges on the boards of LEDs;

Fig is a schematic view illustrating other placement of LEDs in a variety of colour ranges on the boards of LEDs;

Fig is a schematic view illustrating other placement of LEDs in a variety of colour ranges on the boards of LEDs;

Fig an enlarged partial view illustrating the color ranges of the LEDs in the backlight device of the third variant of implementation of the present invention, with the color determined by the color graphics color space, created by the International Commission on Illumination (CIE) in 1931; and

Fig is a schematic view illustrating placement of the LEDs in a variety of colour ranges on the boards of LEDs.

TECHNICAL IMPLEMENTATION of the INVENTION

The first variant of implementation of the present invention is explained with reference to Figures 1-10.

First, due to the television receiver TV including a liquid crystal device is in 10 display.

As shown in figure 1, the television receiver TV of this variant implementation includes the liquid crystal device 10 display, front and rear elements Ca, Cb corps, which embody located between the liquid crystal device 10 of the display, the source of P supply, the selector T channels and a stand S. the Liquid crystal device 10 of the display (display device) has the General shape of a horizontal rectangle. The liquid crystal device 10 of the display is fixed in a vertical position. As shown in figure 2, it contains the liquid crystal panel 11 as a display panel and device 12 backlight (lighting device), which is an external light source. They are attached to each other using a frame 13 having the form of a frame.

Further explained the liquid crystal panel 11 and the device 12 backlight included in the liquid crystal device 10 of the display (see Fig.2-4).

The liquid crystal panel (display panel) is designed so that a pair of glass substrates bonded to each other with a specified gap between them, and a liquid crystal layer sealed between the glass substrates. On one of the glass substrates provided with switching components (for example, thin-film is transitory (TFT)), connected to the source lines and the lines of the shutter, which are perpendicular to each other, pixel electrodes connected to the switching components, and orienting the film. On the other glass substrate provided with a color filter having color sections of the red (R), green (G) and blue (B) colors, located on the specified schema, protivoelektrodom and orienting the film. To the outer surfaces of the substrates attached polarizing plate.

As shown in figure 2, the device 12 backlight comprises a base 14, a set of 15 optical sheets (plate 15A of the lens and a plurality of optical sheets 15b arranged between the plate 15A of the lens and the liquid crystal panel 11), and the frame 16. The base 14 has a box-like shape and the open part by radiation of light (from the side of the liquid crystal panel 11). Set of 15 optical sheets positioned to cover the open part of the base 14. Frame 16 are located along most of the sides of the base 14. Frame 16 is fixed to the edge of the greatest sides of the plate 15A of the lens to the base 14. The outer edges of the plate 15A of the lens placed between the base 14 and under 16. Light-emitting diodes (point light source, hereinafter referred to as a light emitting diode (LED)) 17 is located on the base 14. The light-emitting side of the device 12 rear illumination and is a party, closer to the plate 15A of the lens than the lamp cold cathode 17.

The base 14 is made from metal. It includes a bottom plate 14a, the side plate 14b and the receiving plates 14C. The bottom plate 14a has a rectangular shape similar to the liquid crystal panel 11. Each side plate 14b rises from the outer edge of the corresponding side of the bottom plate 14a. Each receiving plate 14C is above the upper edge of the corresponding side plate 14b. The base 14 has the General shape of small boxes with the open part on the front side. As shown in figure 3 and 4, the frame 16 are located on the respective receiving plates 14C on the base 14. The outer edges of the reflective sheet 18 and a set of 15 optical sheets placed between the receiving plates 14C and under 16. The reflective sheet 18 is explained below. Moreover, on the upper surfaces of the frame 16 is provided with mounting holes 16A. The frame 13, the frame 16 and base 14 are connected to each other by means of screws 19.

The set of optical sheets 15 containing plate 15A of the lens and the optical sheets 15b, placed with the open side of the base 14. Plate 15A of the lens is constructed from a plate element made of a synthetic resin dispersed therein a light-diffusing particles. Plate 15A of the lens RA is saivet spot light, emitted from the LEDs 17, which are point light sources. The outer edges of the plate 15A of the lens placed on the receiving plates 14C of the base 14, as explained above. On the outer edges of the plate 15A of the lens is not affected by significant vertical forces that hold the outer edges in the vertical direction.

The optical sheets 15b stacked layers and placed on the plate 15A of the lens. Each optical sheet 15b has a sheet shape with a thickness, the greater thickness of the plate 15A of the lens. Examples of the optical sheets 15b include a diffuser sheet, a lens sheet and a polarizing sheet of the reflective type. In this regard, each of the optical sheet 15b can get out of these sheets. The optical sheet 15b converts light emitted from the LEDs 17 and passed through the plate 15A of the lens, in the planar light. On the upper surface of the optical sheet 15b is a liquid crystal display panel 11.

Reflective sheet 18 is placed on the inner surface of the bottom plate 14a and the side plate 14b of the base 14 so as to cover almost all the surface. Reflective sheet 18 is a sheet of synthetic resin having the surface of the white light, which provides high light reflectance. In the reflective sheet 18 and euda holes 18a in places corresponding to the lens 21 of the lens, which is explained below. The entire area of the bottom plate 14a of the base 14 is covered with a reflective sheet 18 except for sites that host the lens 21 of the lens. The lens 21 of the lens out on the set of 15 optical sheets through holes 18a. Peripheries of the reflective sheet 18 is raised at an angle so as to cover the inner surface of the side plates 14b. The outer edges of the reflective sheet 18 is placed on the corresponding receiving plate 14C of the base 14. When using such a light reflecting sheet 18, the light emitted from the LEDs 17 is reflected toward the plate 15A of the lens.

Board 20 LEDs (charge of the light sources)on which the LEDs 17 and the lens 21 of the lens, placed on the inner surface of the bottom plate 14a of the base 14. Each card 20 LEDs is a Board made of synthetic resin with a surface on which are provided drawings of connections (not shown). Drawings compounds are metal films, for example films of copper foil, performed on the surface of circuit Board 20 LEDs. As shown in Figure 5, each card 20 LEDs is an elongated plate element. Board 20 LEDs are placed so that their longitudinal is UPRAVLENIE coincided with the direction along the largest side (the direction X) of the base 14. In particular, three boards 20, 20, 20 LEDs are placed so that their longitudinal direction coincides with the direction along the largest side of the base 14. Board 20, 20, 20 LEDs electrically and physically connected by connectors 22. Nine lines, each of which includes three boards 20, 20, 20 LEDs, drawn in the direction along the smallest side (direction Y) of the base 14. A control unit, not shown, is connected with the boards of 20 LEDs. The control unit is configured to supply power necessary to activate the LEDs 17, and the excitation control of the LEDs 17.

Each connector 22, which connects the connecting Board 20, 20, 20 LEDs, has a white color that provides high reflectivity. According to Figure 5, each connector 22 includes a first connector 22A and the second connector 22b. The first connector 22A is attached to the left Board 20 LEDs adjacent circuit boards 20 LEDs. The second connector 22b is attached to the right Board 20 LEDs adjacent circuit boards 20 LEDs. The first connector 22A protrudes outward from the edge of the PCB 20 LEDs in the longitudinal direction. The connection between adjacent plates 20, 20 LEDs is carried out when the first connector 22A and the second connector 22b are concatenated.

Six led the 17 are placed in a line on each Board 20 LEDs along the longitudinal direction of the circuit Board 20 LEDs. In particular, six of the LEDs 17 are placed with equal intervals and mounted on the Board surface 20 of the led. Each led 17 is produced by applying a phosphor that has an emission maximum of the light in the yellow range, for emitting monochromatic light crystal that emits blue light, so that the led 17 radiated white light. The LEDs 17 are electrically connected in series by drawing connections on the circuit Board 20 LEDs. The led 17 can be manufactured by applying a phosphor that has an emission maximum of the light in the green range, and a phosphor that has an emission maximum of the light in the red range, radiating blue light crystal, so that the led 17 radiated white light. The led 17 can be manufactured by applying a phosphor that has an emission maximum of the light in the green range, radiating blue light crystal and combining it with radiating red light crystal, so that the led 17 radiated white light. The led 17 can be made by combining emitting blue light, crystal, emitting green light crystal and emitting red light of the crystal, so that the led 17 radiated white light.

As shown in Fig.6, the lens 21 of the lens mounted on each circuit Board 20 LEDs. Each lens 21 raseev the body is dome-shaped and covers the corresponding led 17. Each lens 21 of the lens is a light diffusing element having a high dispersing ability. The lens 21 of the lens is made of synthetic resin such as acrylic resin. Three legs 23 protrude from the edge parts of the lower surface of each lens of the lens. As shown in Fig.7, the legs 23 are approximately equal intervals (intervals of approximately 120 degrees) along the edge of the lens 21 of the lens and fixed to the surface of the Board 20 LEDs using adhesives or thermosetting resin. An inclined recess 21A is provided in the bottom surface of the lens 21 of the lens (facing toward the led Board 17 and 20 LEDs)that overlaps the led 17 in a horizontal projection. An inclined recess 21A is a cone-shaped hole, which extends in the upward direction. The light from the led 17 is inclined in the recess 21A. The lower surface of the lens 21 of the lens is treated by roughening the surface, such as texturing. The recess 21b is provided in the Central area (overlying the led 17 in a horizontal projection) of the upper surface of the lens 21 of the lens (facing the plate 15A of the lens). The recess 21b extends in a downward direction. The upper surface of which engages in two slightly rounded continuous light guiding surface s. Emitted from the LEDs 17 and the light is refracted when passing through the air layer, the inclined recess 21A and the light guiding surface s. As a result, light is scattered and emitted as planar light, which spreads over a wide angle of field from the recesses 21b and the light guiding surface is towards the plate 15A of the lens.

Each card 20 LEDs mounted on the bottom plate 14a of the base 14 by means of rivets 24. Each piston 24 includes a presser portion 24A and a locking portion 24b. The presser portion 24A has a disc shape. Locking portion 24b protrudes downward from the pressing portion 24A. In the circuit Board 20 LEDs there are mounting holes 20C, through which passes the locking portion 24b. In the bottom plate 14a of the base 14 has mounting holes 14d, which are communicated with the respective mounting holes 20C. The end locking portion 24b of each piston 24 is a wide part, which lends itself to elastic deformation. When the end of the locking portion 24b passes through the installation hole 20C and mounting hole 14d, it is fixed on the rear surface of the bottom plate 14a of the base 14. When using this configuration, each piston 24 attaches charge 20 LEDs to the bottom plate 14a of the pressing Board 20 LEDs presser cha is part 24A.

As shown in figure 2, the supporting pins 25 are placed on the upper surfaces of the caps 24, located near the Central part of the bottom plate 14a of the base 14. Each support pin 25 has the shape of a cone, which tapers towards the top. When the flange 15A of the lens is bent down the ends of the support pins 25 are in point contact with the plate 15A of the lens. That is, the supporting pins 25 of the support plate 15A of the lens from below. In addition, the caps 24 easy to handle for holding the supporting pins 25.

The color of the white light emitted from the LEDs 17 is not the same white color. There may be some variations in color of white light. In this embodiment, departures color LEDs 17 on each Board, 20 LEDs, but the color of the LEDs 17 on separate boards 20 LEDs are controlled so that they were within a certain range. The range is discussed below with reference to Fig-10. Fig is a schematic view for explaining an average color LEDs on each Board LEDs. Fig.9 is a color chart color space, created by the International Commission on Illumination (CIE) in 1931 Figure 10 is an enlarged partial view is equivalent to the range of colors in Fig.9.

As shown in Fi is .8, in this embodiment, each blade 20 LEDs are six LEDs 17. The color of the LEDs 17 can be the same or different. By averaging the colors of the LEDs 17 on each Board 20 LEDs average color of the LEDs 17 on the circuit Board 20 LEDs is within the equivalent color range of H, shown in figures 9 and 10. Equivalent to the color range of H is defined by two opposite lines, each of which has a coordinate length on the X-axis of 0.015, and the two opposite lines, each of which has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931 in figures 9 and 10. Equivalent color range of H corresponds to a specific color or range that includes the specified color.

As described above, the average color of the LEDs 17 on each Board 20 LEDs is within the equivalent color range N. Equivalent to the color range of H is defined by two opposite lines, each of which has a coordinate length on the X-axis of 0.015, and the two opposite lines, each of which has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931, is Equivalent to the color range of H, defined two protiva the containing lines, each of which has a coordinate length on the X-axis of 0.015, and the two opposite lines, each of which has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931, is the range in which the colors are equivalent, and therefore, the color deviation can be detected with a smaller probability. Thus, the color deviation between the plates 20 LEDs can be detected with a smaller probability. As a result, can be obtained homogeneous overall color, and therefore can be obtained an almost uniform light color.

In this embodiment, the LEDs 17 are placed in line along the longitudinal direction of the circuit Board 20 LEDs. The placement of the LEDs 17 is determined in accordance with the placement of circuit boards 20 LEDs. So the placement of the LEDs 17 can be easily developed.

The LEDs 17 are placed with equal intervals on each Board 20 LEDs. The placement of the LEDs 17 is not changed in accordance with the boards of 20 LEDs. Therefore, even when changing device size 12 backlight Board 20 LEDs 20, however, can be used.

Board 20 LEDs are placed along their longitudinal direction, while the connecting Board 20 LEDs are connected using plug the oil 22.

Due to the production of circuit boards 20 LEDs having a different length, that is, which is a different number of LEDs 17, and connect them with connectors 22 of the Board 20 LEDs can be used for different sizes (or lengths) of the devices 12 in the rear lights. That is, does not require Board 20 LEDs exclusively for the particular size of the backlight device 12. This affects the cost reduction.

In this embodiment, each connector 22 includes a first connector 22A and the second connector 22b. The first connector 22A is of the highest end side of the card 20 LEDs.

Because at least one of the first connector 22A and the second connector 22b protrudes outward from the Board of the LEDs 20, the first connector 22A and the second connector 22b can be smoothly coupled with the connection of adjacent circuit boards 20, 20 LEDs using the first connector 22A and the second connector 22b.

The connectors 22 are white. The connectors 22 have a relatively high reflectivity. Therefore, the connectors 22 are less likely to absorb light, and therefore less likely the occurrence of uneven brightness.

The base 14 has a horizontal projection of a rectangular shape. Each card 20 LEDs is placed so that its direction is along the largest is part coincided with the longitudinal direction of the base 14.

Compared with the configuration in which each card 20 LEDs is placed so that its direction is along the largest side coincided with the longitudinal direction of the base 14, the number of circuit boards 20 LEDs can be reduced. Therefore, the number of control units for controlling on and off of the LEDs 17 can be reduced. As a result, the cost can be reduced.

As the light sources are LEDs 17. Therefore, can be generated light sources with long life and low power consumption.

In this embodiment, the led 17 is produced by applying a phosphor that has an emission maximum of the light in the yellow range, radiating blue light crystal and is used as light source.

When using LEDs white light 17 colors have a tendency to deviation. The light can be bluish-white, depending on the characteristics of the phosphors (for example, concentration, thickness of the film). When using this configuration option, the implementation of color in the entire region are aligned, this can be achieved an almost uniform light overall color.

The LEDs 17 are electrically connected in series.

Because each led 17 is fed a current of the same value, the number is the amount of light, emitted from the LEDs 17 can be adjusted. Therefore, the uniformity of brightness in the illuminated surface of the backlight device 12 is improved.

The lens 21 of the lens, configured to scatter light from the respective LEDs 17 are installed in such a way as to cover the respective LEDs 17. Light scattered by the lens 21 of the lens. Therefore, even if the distance between adjacent LEDs 17, 17 increases, bitmap lamps are less likely to appear. By reducing the number of LEDs 17, the cost can be reduced. In addition, can be achieved practically uniform distribution of brightness. When using the lens 21 of the lens color of the light from the LEDs 17 can be mixed, and therefore, the color deviation can be reduced. Thus, colors are aligned even more.

The lens 21 of the lens are light diffusing elements made with the possibility of dispersion of light. Therefore, light can properly dissipate.

The surface of the lens 21 of the lens-side Board 20 LEDs are processed by roughening the surface. Therefore, light is scattered even better.

<the Second is an implementation option>

Next, with reference to 11 and 12 due to the second variant of implementation of the us is Otsego invention. In this embodiment, due to the color of the LEDs on each Board LEDs. Other configurations are the same as in the first embodiment. The same parts as in the first embodiment are denoted by the same symbols and are not explained.

11 is an enlarged partial view illustrating the color of the LEDs in the backlight device of the second variant of implementation of the present invention, with the color determined by the color graphics created by the International Commission on Illumination (CIE) in 1931 Fig is a schematic view illustrating the arrangement of LEDs of different color LEDs on the boards.

The color of the LEDs 17 in this embodiment is changed within the range R of usage, defined by solid lines on the color graphics International Commission on Illumination in 1931, figure 11. The range R use is divided into three color ranges a, b and C, each of which is determined by the square. Each side of the square is the coordinate length of 0.015, which means the actual distance between the points of two adjacent corners of the square, i.e. the actual distance between the ends of one side is 0,015. In particular, the Central area of the range R is the color range of the first color range). Color range And corresponds to a specific color, and a large number of LEDs is in this range. Range under color range And is a color range (the third color range). Range over the color range And is color range C. the LEDs 17 having a color outside of the specified colors are in the color ranges b and C. the Color ranges a and b are adjacent color bands. The color ranges a and C are adjacent color bands. That is, the color ranges b and C are not adjacent color bands. Each of the color ranges a, b or C, which is a square with sides of length 0,015 is the color range of the LEDs 17 in which the colors are not as different colors. Color range And includes the equivalent color range N. The boundary between the color range and color range is one of the parties is equivalent to a color range of H. The boundary between the color range and color range is one of the parties is equivalent to the color range N.

Next, with reference to Fig explains the placement of the LEDs 17 on the boards of 20 LEDs.

As shown in Fig, on each Board 20 (20A, 20b) of the LEDs are LEDs 17 different colors a, b and C. If you look at the LVL 20 LEDs in the direction along the row (the direction of X axis - longitudinal direction of the base 14, the longitudinal direction of the circuit boards 20A, 20b LEDs), the first three cards 20A, 20A, 20A of the LEDs (the first charge of the light sources are sequentially connected by the connectors 22 in the first row at the very top placement cards 20 LEDs. Each first Board 20A of LEDs includes LEDs 17 in the color ranges of a, C, a, C, a, C, arranged in sequence from left to right on Fig. The LEDs 17 in the color range And the LEDs 17 in the color range are placed alternately. Adjacent LEDs 17, 17 on the first circuit Board 20A LEDs are adjacent color bands (a and C).

In the second row under the first row three the second circuit Board 20b, 20b, 20b of the LEDs (the second charge of the light sources are sequentially connected by the connectors 22. Every second Board 20b of LEDs includes LEDs 17 in the color ranges In And In And In And in sequence from left to right on Fig. The LEDs 17 in the color range And the LEDs 17 in the color range are placed alternately. Adjacent LEDs 17, 17 on the first Board LEDs 20b are adjacent color bands (a and b). In the third row are the first circuit Board 20A of the led. In the fourth row are the second circuit Board 20b LEDs. In the rows under the fourth next in alternate rows are the first square is you LEDs 20A and the second circuit Board 20b LEDs.

In addition, the adjacent LEDs 17, 17 on the respective adjacent first circuit boards 20A, 20A of LEDs connected in series in the direction of the axis X are adjacent color bands (a and C). Adjacent LEDs 17, 17 on the respective adjacent second circuit boards 20b, 20b of LEDs connected in series in the direction of the axis X are adjacent color bands (a and b). All the LEDs 17, 17 adjacent in the direction along the X-axis are adjacent color bands (a and b or a and C). That is, the LEDs 17 that are separated from each other on two of the color range (b and C), are not placed side by side.

If you look at card 20 LEDs in the direction along the column direction Y - direction at the lower side of the base 14, the direction of placement of the circuit boards 20A, 20b LEDs), the first circuit Board 20A of LEDs and the second circuit Board 20b LEDs are placed alternately. The first column in the leftmost position on Fig contains the LEDs 17 in the color ranges of a, b, a, b,....., located in the specified sequence. The second column contains the LEDs 17 in the color ranges, And, And,....., located in the specified sequence. The remaining columns are formed by repeating the above locations. Among the first circuit Board 20A of LEDs and the second circuit Board 20b LEDs arranged in parallel, etc is g other adjacent LEDs 17, 17 in the direction along the column direction Y) are adjacent color bands (a and b or a and C). That is, the LEDs 17 that are separated from each other on two of the color range (b and C), are not placed side by side.

On each of the first circuit Board 20A LEDs the LEDs 17 to the color ranges a and C are placed alternately. The average color of the LEDs 17 on the first circuit Board 20A of the LEDs is located on the border between the color ranges a and C, or in a range of colours A. On each of the second circuit Board 20b LEDs the LEDs 17 to the color ranges a and b are placed alternately. The average color of the LEDs 17 on the second circuit Board 20b LEDs located on the border between the color ranges a and b, or in a range of colours Century Equivalent to the color range of H is included in the color range A. the Parties equivalent to a color range of H is the boundary between the color range and color range and the boundary between the color range and color range Century. the Average color of the LEDs 17 on the first circuit Board 20A of the LEDs and the average color of the LEDs 17 on the second circuit Board 20b LEDs are equivalent range of colours N.

As described above, the LEDs 17 in this embodiment, in accordance with the colors classified as the color ranges a, b and C. the Color range And ODA is determined by a square with sides of length 0,015 on the color chart of the International Commission on Illumination in 1931 and includes the equivalent color range N. Each color ranges From and is defined by a square having a side length of 0.015 and nearby colors A. Board 20 LEDs contain the first circuit Board 20A of LEDs and the second circuit Board 20b LEDs. On each of the first circuit Board 20A LEDs are LEDs 17 in the color ranges a and B. In each of the second circuit Board 20b LEDs are LEDs 17 in the color ranges a and B. the First circuit Board 20A of LEDs and the second circuit Board 20b LEDs are placed alternately.

When using this configuration, the average color between the alternately placed first boards LEDs 20A and second plates 20b LEDs are slightly different from each other. Therefore, the appearance of non-uniform color is less likely.

In this embodiment, the LEDs 17 in the color ranges a and C are placed alternately on each of the first circuit Board 20A of the led. The LEDs 17 in the color ranges of a and b are placed alternately on each of the second circuit Board 20b LEDs.

When using this configuration, the adjacent LEDs 17, 17 on each of the first circuit Board 20A, 20b LEDs are adjacent color bands (a and b or a and C). So their colors are slightly different from each other, and therefore, the occurrence of non-uniform color even less is likely.

The above-explained second variant implementation. However, the present invention is not limited to the above embodiment. For example, the following various modifications can be included in the scope of the present invention. In the following modifications of the same components and elements as in the second embodiment are denoted by the same symbols and are not explained.

<a First modification of the second variant implementation>

As a modification of the placement of the LEDs 17 can be used in the placement shown in Fig. Fig is a schematic view illustrating another arrangement of LEDs in a variety of colour ranges on the boards of LEDs.

On Fig, if you look at the card led in the direction along the X axis (in the direction of the row, the longitudinal direction of the third Board 20d LEDs), three third Board 20d, 20d, 20d LEDs placed in the first row at the top of the accommodation, which is electrically and physically connected using connectors 22. The LEDs 17 colors a, b, a, b, a and b are placed in sequence from left to right on Fig. Adjacent LEDs 17, 17 on third boards 20d LEDs are adjacent color bands (a and b). In each of the series - the second row, third row, fourth row,..... three Board 20d LEDs connect the Xia also, as in the first row. If you look at the card led in the direction along the Y axis (the direction of the third circuit Board 20d LEDs), the LEDs 17 in the color ranges And, And, And, And,..... are placed in the first column. The LEDs 17 in the color ranges In, In, In, In,..... are placed in the second column. The LEDs 17, 17, placed next in relation to the direction of placement, are in the same color range (and And or). The average color of each of the third Board 20d LEDs located on the border between the color ranges a and b, or in a range of colours And, that is equivalent range of colours N.

When using this configuration, the average color of adjacent LEDs 17, 17 are slightly different from each other, and therefore, the occurrence of non-uniform color is less likely. In particular, in this example, the types of manufactured boards 20 LEDs (third cards 20d LEDs) can be reduced. This affects the cost reduction.

<a Second modification of the second variant implementation>

As modifications to accommodate circuit boards of the LEDs 17 can be used in the placement shown in Fig. Fig is a schematic view illustrating another arrangement of LEDs in different color ranges.

On Fig, if you look at the card LEDs aimed at the Yu along the X-axis (in the direction of the row, longitudinal direction of the boards 20E, 20f LEDs), three fourth card 20E, 20E, 20E LEDs placed in the first row at the top of the accommodation, which is electrically and physically connected using connectors 22. The LEDs 17 colors a, b, a, a, a, are placed in sequence from left to right on Fig on each of the fourth Board 20E LEDs. Adjacent LEDs 17, 17 on the fourth Board 20E LEDs are in the same color range (a and a) or in the adjacent color bands (a and b). In the second row, three fifth Board 20f, 20f, 20f LEDs placed in the second row, which is electrically and physically connected by the connectors 22. On every fifth Board 20f LEDs the LEDs 17 in the color ranges From a, a, a, a, C, And placed in sequence from left to right on Fig. Adjacent LEDs 17, 17 at the fifth Board 20f LEDs are in the same color range (a and a) or in the adjacent color bands (a and C). The average color of the fourth Board 20E LEDs is in the color range A. the Average color of the fifth Board 20f LEDs is in the color range of A. That is, the average colors of the fourth Board 20E LEDs and the fifth card 20f LEDs are equivalent range of colours N.

When using this configuration, the color of the LEDs 17, 17, placed in the direction along the column and is UPRAVLENIE along the row, slightly different from each other. Therefore, the occurrence of non-uniform color is less likely. This example is particularly preferred if the number of the LEDs 17 in a range of colours And, which is the specified range, much larger than the number of the LEDs 17 in the color ranges b and C.

<a Third modification of the second variant implementation>

As modifications to accommodate circuit boards of the LEDs 17 can be used in the placement shown in Fig. Fig is a schematic view illustrating another arrangement of LEDs in a variety of colour ranges on the boards of LEDs.

On Fig, if you look at the card led in the direction along the X axis (in the direction of the row, the longitudinal direction of the circuit Board 20A, 20g LEDs), the first three cards 20A, 20A, 20A of LEDs placed in the first row at the top of the accommodation, which is electrically and physically connected using connectors 22. On each of the first circuit Board 20A LEDs the LEDs 17 in the color ranges of a, C, a, C, a, C are placed in sequence from left to right on Fig. Adjacent LEDs 17, 17 on the first circuit Board 20A LEDs are adjacent color bands (a and C). In the second line, three sixth card 20g, 20g, 20g of LEDs electrically and physically connected using connectors 22. On the Estai Board 20g LEDs the LEDs 17 in the color ranges And, And, And, And, And, And are placed in sequence from left to right on Fig. That is, the adjacent LEDs 17, 17 at the sixth Board 20g LEDs are in the same color range (A).

When using this configuration, the LEDs 17 with the adjacent color bands (a and C) are placed next to and mounted on the first circuit Board 20A of the led. Therefore, the color of adjacent LEDs 17, 17 are slightly different from each other, and therefore, the occurrence of non-uniform color is less likely. In addition, the LEDs 17 in a range of colours And are positioned adjacent to the sixth Board 20g LEDs, and therefore, the occurrence of non-uniform color is even less likely. This example is particularly preferred if the number of the LEDs 17 in a range of colours And, which is the specified range, much larger than the number of the LEDs 17 in the color ranges b and C.

<a Third option exercise>

Next, with reference to Fig and 17 due to the third variant of implementation of the present invention. In this embodiment, due to the arrangement of LEDs in a variety of colour ranges on each Board LEDs. Other configurations are the same as in the first embodiment. The same parts as in the first embodiment are denoted by the same symbols and not on Yasnaya.

Fig is an enlarged partial view illustrating the color ranges of the LEDs in the backlight device, with the color ranges are determined by the color graphics created by the International Commission on Illumination (CIE) in 1931 Fig is a schematic view illustrating the arrangement of LEDs in a variety of colour ranges on the boards of LEDs.

The color ranges of the LEDs 17 in this embodiment, vary within the region W of usage, defined by solid lines on the chart of the International Commission on Illumination in 1931 on Fig. Region W use is divided into two ranges: the color range and color range Century. Each range is defined by a square, each side of which has a coordinate length of 0.015. Each side of the square area is the coordinate length of 0.015, which means the actual distance between the points of two adjacent corners of the square, i.e. the actual distance between adjacent corners of the square, i.e. the actual distance between the ends of one side is 0,015. In a particular color range (the first color range) corresponds to a specific color. Range over the color range And is a color range (the second color range). The LEDs 17 having a color outside of the specified the Council, are in the color range C. range of colors a and C are adjacent color bands. Each of the color ranges a or C, which is a square with sides of length 0,015 is the color range of the LEDs 17 in which colors are not recognized as different colors. Color range And includes the equivalent color range N. The boundary between the color range and color range is one of the parties is equivalent to the color range N.

Next, with reference to Fig explains the placement of the LEDs 17 on the boards of 20 LEDs in accordance with the color ranges.

On Fig, if you look at the card led in the direction along the X axis (in the direction of the row, the longitudinal direction of the first circuit Board 20h, 20j LEDs), three seventh card 20h, 20h, 20h LEDs electrically and physically connected using connectors 22 in the first row at the top of the placement. On every seventh Board 20h LEDs (third charge lights the LEDs 17 in the color ranges And, And, And, And, And, And are placed in sequence from left to right on Fig. That is, the adjacent LEDs 17, 17 at the seventh Board 20h LEDs are in the color range A. In the second row three eighth Board 20j, 20j, 20j LEDs (fourth charge of the light sources) is electrically and fizi is Eski are connected using connectors 22. At the eighth Board 20j LEDs the LEDs 17 in the color ranges From a, C, a, C, And placed in sequence from left to right on Fig. That is, the adjacent LEDs 17, 17 at the eighth Board 20j LEDs are adjacent color bands (a and C).

In addition, if you look at the placement of the LEDs in the direction along the column direction on the Y-axis direction at the lower side of the base 14, the direction of placing cards 20h, 20 LEDs), the seventh card 20h LEDs and eighth card 20g LEDs are placed alternately. The LEDs 17 in the color ranges of a, C, a, C,..... are placed in sequence from left to right in the first row on Fig. In the second row of the LEDs 17 in the color ranges And, And, And, And,..... are placed in sequence. The remaining lines are formed by repeating the above locations. Among seventh circuit boards 20h LEDs and eighth circuit boards 20j LEDs arranged in parallel to each other, the adjacent LEDs 17, 17 in the direction along the column direction Y) are adjacent color bands (a and C) or in the same color range A. the Average color for each of the seventh Board 20h LEDs and the average color for each eighth Board 20j LEDs are equivalent range of colours N.

In the configuration of this variant implementation of the CoE is IMIE Board 20h LEDs and eighth Board 20j LEDs are placed alternately, their average colors are slightly different from each other. Therefore, the appearance of non-uniform color is less likely.

In this embodiment, the LEDs 17 in the color range And the LEDs 17 in the color range are placed alternately on the eighth circuit boards 20j LEDs.

When using this configuration, the adjacent LEDs 17, 17 on each of the eighth Board 20j LEDs are adjacent color bands (a and C). Therefore, the color of the LEDs 17 are slightly different from each other, and therefore, the occurrence of non-uniform color is even less likely.

<other embodiments of>

Have been described embodiments of in accordance with the present invention. The present invention is not limited to implementation options, explained in the above description with reference to the drawings. In the technical scope of the present invention may include, for example, the following implementation options.

(1) In the second embodiment, there are three color range. However, the number of color ranges is not limited to three. Can be used four or more color range.

(2) In the second embodiment, there are Board LEDs, where the LEDs are placed in the same order according to the color on what apathname with respect to the longitudinal direction of the base (the direction along the X axis). However, it can be connected Board LEDs, on which are placed the LEDs in a different order according to colors.

(3) In the above embodiments, the implementation of three Board LEDs are placed along the longitudinal direction of the base (direction along the X axis). However, the number of boards of LEDs may be equal to one, two, or more than three. In addition, the number of LEDs that are placed on each Board LEDs is not limited to six. On each Board LEDs can accommodate any number of LEDs.

(4) In the above embodiments, the implementation uses the white connectors. However, the connectors may be made of materials other colors, such as ivory, provided that they have high coefficients of reflection of light.

(5) In the above embodiments, the implementation of LEDs are placed on the grid. However, LEDs can be placed in the cell structure. That is, the LEDs can be placed with equal intervals or in a checkerboard pattern.

(6) In the above embodiments, the implementation of the lenses of the lens are placed so as to cover the corresponding LEDs. However, the lenses of the lens may not be required. Thanks to the dense arrangement of LEDs occurrence bitmap lamps is less likely.

(7) In the above options is the ants implementation uses LEDs white light. However, the color of the light is not limited to white. Can be used LEDs that emit light of any color.

(8) In the above embodiments, the implementation as light sources are LEDs, each of which is manufactured by applying a phosphor that has an emission maximum of the light in the yellow range, radiating blue light crystal to emit white light. However, the radiation source may be made of emitting ultraviolet radiation crystal having the maximum light emission in the range of about 380 nm, and a phosphor, which absorbs ultraviolet light and produces luminescence. When using phosphors having emission maximum of the light in the blue, green and red bands, respectively, can be obtained in white light. White light generated by the lighting device in the above-described configuration, has a smooth spectrum in a wide range of visible light and, therefore, has a high color quality. Color deviations can occur due to deviations in the distribution of the number of phosphors. However, colors can be aligned when using the lighting device in the above-described configuration. That is, there can be created a lighting device with high color quality and lower bent the education deviations of color.

(9) In the above embodiments, the implementation as point light sources are LEDs. However, there may be used and other types of light sources.

(10) In the above embodiments, the implementation of a set of optical sheets includes a diffuser plate, a diffuser sheet, a lens sheet and a polarizing sheet of the reflective type. However, the set of optical sheets may include two plates of the diffuser, which are stacked layers.

DECODING SYMBOLS

10: Liquid crystal display device (display Device), 11: Liquid crystal panel (display Panel), 12: backlight Device (Lighting device), 14: Base, 17: LEDs (Point light source, light-emitting diode), 20: Board LEDs (Charge power sources), 20A: the First Board LEDs (First charge power sources), 20b: the Second card LEDs (Second charge power sources), 21: Lens diffuser, 22: Connector 22A: First connector 22b: Second connector, And: The first color range, In: Third color range, the Second color range, N: Equivalent color range, TV: Television receiver.

1. Lighting device, comprising:
many boards of light sources; and
many point light sources installed on the boards of the sources of light, moreover, the point light sources mounted on each circuit Board of the light sources have a color average color which is equivalent range of colours, and is equivalent to the color range is defined by a square, in which each of the two parties opposite sides, has a coordinate length on the X-axis of 0.015, and each of the two parties opposite sides, has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931,
this
point light sources are classified in the first color range, the second color range, and the third color range in accordance with their colors, the first color range is defined by a square, each side of which has a coordinate length of 0.015, the first color range includes mentioned is equivalent to the color range, the second and third color bands are defined by squares, respectively, each square is adjacent to the first color range and has sides each of which has a coordinate length of 0.015;
Board of light sources include a first circuit Board of the light sources that are point sources of light in the first and second color bands, and the second circuit Board of the light sources that have the ochechnogo light sources in the first and third color bands; and
the first Board of the light sources and the second circuit Board of the light sources are placed alternately.

2. The lighting device according to claim 1, in which point sources of light in the first color range and point sources of light in the second range of colours placed alternately.

3. The lighting device according to claim 1, in which:
point sources of light in the first color range and point sources of light in the second range of colours placed alternately on the first boards of the light sources; and
point sources of light in the first color range and point sources of light in the third color band is placed alternately on the second boards of the light sources.

4. The lighting device according to any one of claims 1 to 3, in which:
each of the cards of the light sources has an elongated shape; and
point light sources are arranged in a line along the longitudinal direction of the circuit Board of the light sources.

5. The lighting device according to any one of claims 1 to 3, in which point light sources are placed at equal intervals on each Board light sources.

6. The lighting device according to any one of claims 1 to 3, in which:
each of the cards of the light sources has an oblong form;
Board of light sources are arranged in their longitudinal direction; and
Board of light sources arranged next to each other, are connected with what omashu connectors.

7. The lighting device according to claim 6, in which:
each of the connectors includes a first connector and a second connector, coupled to each other; and
at least one of the first connector and the second connector protrudes outward from the edge of the relevant Board of the light sources relative to the longitudinal direction of the card light sources.

8. The lighting device according to claim 6, in which the connector has the color of ivory or white color.

9. The lighting device according to any one of claims 1 to 3, 7 and 8, in which:
the Foundation Board containing light sources, has a horizontal projection of a rectangular shape; and
Board of light sources are arranged so that their longitudinal direction coincides with the longitudinal direction of the base.

10. The lighting device according to any one of claims 1 to 3, 7 and 8, in which point light sources are light emitting diodes.

11. The lighting device according to any one of claims 1 to 3, 7 and 8, in which point light sources are light-emitting diodes, which include emitting light blue crystals with phosphors having emission maximum of the light in the yellow range and deposited on the respective emitting blue light crystals to emit white light.

12. The lighting device according to any one of claims 1 to 3, 7 and 8, at which point the light sources are light emitting diodes, which include emitting light blue crystals with phosphors having the maximum light emission in the green band and red band, respectively, and plotted on the respective emitting blue light crystals to emit white light.

13. The lighting device according to any one of claims 1 to 3, 7 and 8, in which point light sources are light-emitting diodes, which include emitting light blue crystals with phosphors having emission maximum of the light in the green range, and emitting red light crystals, each emitting blue light crystal and each emitting red light crystal are combined to emit white light.

14. The lighting device according to any one of claims 1 to 3, 7 and 8, in which point light sources are light emitting diodes, each of which includes a radiating blue light crystal, emitting green light crystal and emitting red light crystal combined to emit white light.

15. The lighting device according to any one of claims 1 to 3, 7 and 8, in which each point source of light includes emitting ultraviolet radiation of the chip and the phosphor.

16. The lighting device according to any one of claims 1 to 3, 7 and 8, in which the point light sources include emitting ultraviolet radiation kr is the growth and phosphors, having the maximum light emission in the blue band, green band and red band, respectively.

17. The lighting device according to any one of claims 1 to 3, 7 and 8, in which point light sources are electrically connected in series.

18. The lighting device according to any one of claims 1 to 3, 7 and 8, optionally containing lenses of the lens mounted on the printed circuit boards of the light sources in order to cover a point light source, and configured to scatter light from the point light sources.

19. The lighting device according to p, in which the lenses of the lens are light diffusing elements made with the possibility of dispersion of light.

20. The lighting device according to p, in which each of the lenses of the lens has a surface treated by roughening the surface of the side Board of the light sources.

21. Lighting device, comprising:
many boards of light sources; and
many point light sources mounted on the printed circuit boards of the light sources and point light sources mounted on each circuit Board of the light sources have a color average color which is equivalent range of colours, and is equivalent to the color range is defined by a square, in which each of the two parties p is otepaeae parties, is the coordinate length on the X-axis of 0.015, and each of the two parties opposite sides, has a coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931,
this
point light sources are classified in the first color range and a second color range in accordance with their colors, the first color range is defined by a square, each side of which has a coordinate length of 0.015, the first color range includes mentioned is equivalent to the color range, the second color range is determined by the square adjacent to the first color range, and has sides each of which has a coordinate length of 0.015;
Board of light sources include a third circuit Board of the light sources, which are point sources of light in the first color range, and the fourth Board of light sources, which are point light sources in the first and second color bands; and
the third Board of the light source and the fourth Board of the light sources are placed alternately.

22. The lighting device according to item 21, in which point sources of light in the first color range and point sources of light in the second range of colours placed alternately on the fourth boards source is in the light.

23. Lighting device, comprising:
many boards of light sources; and
many point light sources mounted on the printed circuit boards of the light sources and point light sources mounted on each circuit Board of the light sources have a color average color which is equivalent range of colours, and is equivalent to the color range is defined by a square, in which each of the two parties opposite sides, has given coordinate length on the X-axis and each of the two parties opposite sides, has given coordinate length along the Y-axis 0,015 on the color chart, the color space of the International Commission on Illumination in 1931, and:
point light sources are classified in the first color range, the second color range, and the third color range in accordance with their colors, the first color range includes mentioned is equivalent to the color range, the second and third color bands adjacent to the first color range;
Board of light sources include a first circuit Board of the light sources that are point sources of light in the first and second color bands, and the second circuit Board of the light sources that are point sources of light in the first and third color is s ranges; and
the first Board of the light sources and the second circuit Board of the light sources are placed alternately.

24. A display device, comprising:
the lighting device according to any one of claims 1 to 23; and
a display panel, configured to provide display using light from the lighting device.

25. The display device according to paragraph 24, in which the display panel is a liquid crystal display using a liquid crystal.

26. Television receiver containing the display device according to any one of p and 25.



 

Same patents:

Led lamp (versions) // 2511564

FIELD: electricity.

SUBSTANCE: invention relates to light sources operating on the base of semiconductor light-emitting diodes. Heat radiator is made of a set of plates with or -shaped form that contact with each other by a flat horizontal part. Length of horizontal part of each plate is bigger than the previous one as they approach the light-emitting diode. Ends of plates are incurved to the side opposite to heat-removal base. Heat removal base is placed under heat radiator. According to the second version length of horizontal parts of radiator plates increases from the outermost plates to the medium ones and heat-removal base is placed under the heat radiator between ends of incurved plates. According to the third version heat-removal base is placed at butt end of the radiator between ends of incurved plates.

EFFECT: reducing dimensions of light fixture, optimising heat area and air flow in heat dispersion area.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention relates to light engineering and in particular to composite fluorescent materials used for solid-state achromatic light sources. According to the invention composite fluorescent material is suggested for solid-state achromatic light sources, which contain light-emitting diode that emits within range of 430-480 nm and a mixture of at least two luminophores; the first luminophore has cadmium-orange light emission within the range of 560-630 nm while the second one is taken from aluminate group of earth metals activated with europium. At that at least one light-accumulating luminophore having long-term afterglow, which practically unexcited by primary emission of the light-emitting diode is used as the second luminophore. Mass ratio of cadmium-orange luminophore and light-accumulating luminophore is the following: cadmium-orange luminophore is 10-90%, light-accumulating luminophore is 10-90%.

EFFECT: obtained material is characterised by high brightness and light parameters corresponding to radiation curve of absolutely black body with colour temperature from 2900 up to 6100 K, long-term afterglow and low costs.

5 cl, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to production of luminescent ceramic converter. Proposed method comprises the steps that follow. (a) Integration of precursor material with ore-forming admixture to get raw mix. Note here that ore-forming admixture comprises, in fact, spherical particles of carbon or organic material. (b) Moulding raw mix to make raw billet of ceramic converter. (c) Heating of raw billet to remove ore-forming admixture and to form pre-calcined ceramic material with, in fact, spherical pores. (d) Sintering of pre-calcined ceramic material to form luminescent ceramic converter. Proposed luminescent ceramic converter comprises sintered monolithic ceramic material converting light with first wavelength in light with second wavelength. Ceramic material has, in fact, spherical pores with mean size of 0.5-10 mcm.

EFFECT: controlled distribution of pores and pore sizes on luminescent ceramic converter.

17 cl, 1 tbl, 2 dwg

FIELD: electricity.

SUBSTANCE: invention is referred to circuit board with enhanced corrosion resistance, manufacturing method of the card, display panel and display device. Active matrix underlay (20) contains glass substrate (21); metal conductor (22) made at glass substrate (21); insulating film (24) of the gate covering metal conductor (22); interlayer insulating film (29) covering (24) insulating film (24) of the gate; and transparent electrode (33) shaped at interlayer insulating film (29). Conductor (22) contains contact area (55) where transparent electrode (33) is applied directly to conductor (22). Transparent electrode (33) passes over the contact area (55) so that it covers end surface (29a) of interlayer insulating film (29) faced to contact area (55) and end surface (24a) of insulating film (24) of the gate faced to contact area (55).

EFFECT: manufacturing of the circuit board capable to prevent corrosion of metal electrodes due to defects of transparent conductive film that covers end surface of organic insulating film.

10 cl, 52 dwg

FIELD: physics.

SUBSTANCE: method of making a light-emitting device includes a step of connecting a cover 3, having a frame part 4, with a housing 1, having a light-emitting element 2 which is fitted in the depression of the housing 1 in order to close the opening of the depression. At the connection step, a metal coupling agent 31, having better wettability with respect to the frame part 4 than with respect to the housing, is partially deposited on the housing 1 or the frame part 4, and is spread along the frame part 4 and connected, wherein the space is defined by the region of connection where the metal coupling element is connected, and the housing 1 and the frame part 4 are connected.

EFFECT: stable production of an air-tight light-emitting device using a metal coupling agent to connect the cover and the housing by avoiding short-circuiting of electrodes.

16 cl, 6 dwg

FIELD: physics.

SUBSTANCE: method of making a light-emitting diode (LED) module according to the invention involves forming an insulating film on a substrate; forming, on the insulating film, a first earthing terminal pad and a second earthing terminal pad separate from each other; forming a first separating film which fills the space between the first and second earthing terminal pads, a second separating film which is deposited on the surface of the first earthing terminal pad and a third separating film which is deposited on the surface of the second earthing terminal pad; forming a first separating layer of given height on each of the separating films; sputtering seed metal on the substrate on which the first separating layer is formed; forming a second separating layer of given height on the first separating layer; forming a first mirror which is connected to the first earthing terminal pad, and a second mirror which is connected to the second earthing terminal pad by applying a metal coating on the substrate on which the second separating layer is formed; removing the first and second separating layers; connecting a stabilitron to the first mirror and connecting a LED to the second mirror; and depositing a fluorescent substance to fill the space formed by the first mirror and the second mirror. The invention also discloses another version of the method described above and the design of the LED module.

EFFECT: improving relative luminosity of the LED element by improving heat-dissipation capacity when making a LED module with high brightness, and obtaining a small LED module with high brightness at a low cost, considerably low failure rate of the module and manufacturing cost per unit, using a semiconductor process which facilitates mass production.

19 cl, 13 dwg

FIELD: physics.

SUBSTANCE: light-emitting device (100) according to the invention has a light emitter (101) situated on a substrate (102) and a reflecting optical housing (103, 108) surrounding said light emitter (101). The space (106) between said reflecting optical housing (103, 108) and said light emitter (101) is filled with a suspension of reflecting material (104). The light-emitting device further includes at least one channel (105) which is suitable for use of said reflecting material (104). Also disclosed is a method of making the light-emitting device described above.

EFFECT: improved luminous efficacy, simple technique of making the light-emitting device, low consumption of material of making the light-emitting device.

10 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: globular light-emitting-diode lamp (10) has clear bulb (14) and base (12) for connection to lamp socket. Before insertion of bulb (14) neck in section (16) by means of base (12) wrapping with expanding band (38) from foam material of Compriband type or similar, self-levelling of base (12) in bulb neck (16) may be achieved. In addition bars (36) of soft metal may be wrapped around band (38) before band (38) wrapping around base (12). Band (38) serves as air cushion, which presses metal bars (36) to base (12) and bulb (14).

EFFECT: higher heat removal due to improved heat transfer from the base to the bulb.

11 cl, 9 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to lighting engineering and specifically to LED-based semiconductor light sources. The LED has at least one light-emitting crystal with an ultra-narrow beam pattern, which is placed in a housing made of optically transparent material, the light-outputting surface of which is spherical, wherein the size of the sphere and the height of the optical element are linked by a certain relationship which depends on the angle of divergence of radiation flux of the LED, the height of the optical element, the radius of the sphere of the optical element, the angular dimension of the beam pattern of the light flux of the emitting crystal and the refraction index of the material of the optical element.

EFFECT: invention enables to make a LED which enables to form the required beam pattern of light flux.

1 dwg

FIELD: physics.

SUBSTANCE: antireflection optical coating of SiO2 is deposited on a light-emitting GaN-n or GaN-p surface and a microrelief is formed in said coating in form of nano-spikes with density of 107-108 items/cm2. The present method enables to form a microrelief light-diffusing, light-emitting surface on both an n-type and p-type GaN without deterioration of heterostructure parameters.

EFFECT: high external quantum efficiency of GaN-based light-emitting diodes.

2 dwg, 1 ex

FIELD: physics.

SUBSTANCE: invention relates to imaging terahertz (THz) radiation (ν=0.1-10 THz or λ=30-3000 mcm) and can be used to design devices for detecting and analysing terahertz radiation. The device for imaging terahertz radiation sources has a converter for converting terahertz radiation to infrared radiation, which consists of a layer of artificial metamaterial with resonant absorption of terahertz radiation, deposited on a solid-state substrate made of sapphire, placed between an input terahertz lens and an infrared camera lens situated on the side of the substrate. The converter is based on a gelatin matrix which contains metal nanoparticles and is provided with a cut-off filter placed in front of the matrix to allow filtration of thermal radiation of the terahertz radiation source with wavelength of not more than 30 mcm.

EFFECT: high noise-immunity of the design, low noise level and high sensitivity while simplifying the design of the imaging device.

16 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: backlighting device (20) comprises a substrate (22), where multiple point sources of light are placed in the form of light diodes (21), and slots (23), which are also arranged on the substrate. Multiple point sources of light include the first point source of light (21), which is placed near the slot (23), and the second point source of light (21), which is placed in a position distant from the slot (23) compared to the first point source of light (21). The light beam in the surroundings of the slots is higher than the light beam in the area different from the surroundings of the slots.

EFFECT: reduced heterogeneity of brightness of a display panel without increase in number of process operations.

15 cl, 12 dwg

FIELD: physics, optics.

SUBSTANCE: backlight for a colour liquid crystal display includes white light LEDs formed using a blue LED with a layer of red and green phosphors over it. In order to achieve a uniform blue colour component across the surface of a liquid crystal display screen and achieve uniform light output from one liquid crystal display to another, the leakage of blue light of the phosphor layer is tailored to the dominant or peak wavelength of the blue LED chip. The backlight employs blue LED chips having different dominant or peak radiation wavelength.

EFFECT: different leakage amounts of light through the tailored phosphor layers offset the attenuation on wavelength of the liquid crystal layers.

15 cl, 13 dwg

FIELD: physics.

SUBSTANCE: liquid crystal display device (100) of the present invention includes a liquid crystal display panel (10) and a lateral illumination unit (20) which emits light from a position which is lateral with respect to the panel (10). The panel (10) includes a front substrate (1), a back substrate (2) and a light-diffusing liquid crystal layer (3). The unit (20) includes a light source (7), which is situated in a position which is lateral with respect to the panel (10), and a light-guide (6), having a light-output surface (6b) through which light emitted by the light source (7) as well as light incident on the light-guide (6) is emitted towards the end surface (1a) of the substrate (1). The surface (6b) is slanted relative a direction which is vertical with respect to the front surface (1b) of the substrate (1), such that it faces the back surface of the panel (10).

EFFECT: preventing generation of a bright line in the panel.

3 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: in carrier pin (11) used for support of optical elements (43-45) though which part of light passes from light-emitting diode (24) a part of peak (14) contacting with light-diffusing plate (43) is formed of light-reflective material while a part of rack (12) supporting peak (14) is formed of light-transmitting material.

EFFECT: eliminating mom-uniformity of lighting.

12 cl, 13 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), equipped with a base (41), a diffusing plate (43) mounted on the base, and a light source which illuminates the diffusing plate with light. The light source has a plurality of light-emitting modules (MJ) which include a light-emitting diode (22) which serves as a light-emitting element, and a divergent lens (24) covering the light-emitting diode. The light-emitting modules are placed on a grid on the base supporting the diffusing plate. Carrier pins (26) for mounting the diffusing plate are located on points on the base. The carrier pins are placed on sections of lines linking neighbouring pairs of light-emitting modules.

EFFECT: eliminating non-uniformity of luminance.

10 cl, 14 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), has a base (41), a diffusing plate (43) which is supported by the base, and a point light source for irradiating the diffusing plate with light. The point light source has a light-emitting diode (22) mounted on a mounting substrate (21). A plurality of light-emitting diodes covered by divergent lenses (24) are provided. Optical axes (OA) of the divergent lenses are inclined relative the diffusing plate, and the divergent lenses, having different inclinations of optical axes, are placed randomly on the base. The divergent lenses, having optical axes that are inclined in opposite directions, are paired and the pairs are arranged in a matrix.

EFFECT: reduced non-uniformity of luminance and hue.

25 cl, 12 dwg

FIELD: electricity.

SUBSTANCE: lighting device 12 comprises multiple point sources 17 of light and a base 14, where point sources of light 17 are placed, which are classified into two or more colour ranges A, B and C, in accordance with light colours. Each colour range is defined by means of a square, each side of which has length equal to 0.01 in the colour schedule of light space of the International Lighting Commission 1931.

EFFECT: reproduction of light of practically even light.

26 cl, 15 dwg

FIELD: electricity.

SUBSTANCE: lighting device includes multiple LED 16, circuit board 17S LED, chassis 14, connection component 60 and reflecting plate 21. LED 16 are installed on circuit board 17S LED. Both plates 17S and 17C LED are attached to chassis 14. Connection component 60 is electrically connects circuit boards 17S and 17C LED between each other. Reflecting plate 21 is put on surface 17A of light sources installation. In the lighting device, connection component 60 is located on surface 17B of attachment of connection component of circuit board 17S LED. Surface 17B of attachment of connection device is opposite to the surface, on which reflecting plate 21 is put.

EFFECT: increasing brightness of reflected light.

23 cl, 22 dwg

FIELD: physics.

SUBSTANCE: device has a holder (11) which attaches a mounting plate (21) to a backlight base (41) while covering at least the edge (21S) of the mounting plate (21) on the backlight base (41), said edge being situated in the direction of the short side of the mounting plate. The surface of the mounting plate covered by the holder has a non-uniform reflection area which can be in form of a connector or a terminal.

EFFECT: improved uniformity of the amount of light from the backlight unit.

21 cl, 39 dwg

FIELD: electricity.

SUBSTANCE: lighting device includes a light source device U, units (31 - 35) of light guides, chassis (60) and a positioning part S. The chassis (60) comprises the light source device U and units (31 - 35) of light guides. The light source device U includes multiple sets of light sources P, arranged along the central line Lc. Each set of light sources P is a pair of light diodes (45), arranged so that it is equidistant from the central line Lc and facing each other. Each unit (31 - 35) of light guides is arranged between the appropriate set of light sources P. Light sources have two final surfaces E in the longitudinal direction, which face the light diodes (45). Positioning parts S are placed in the middle part of the appropriate units (31 - 35) of light guides in longitudinal direction on the central line Lc.

EFFECT: elimination of uneven brightness.

21 cl, 15 dwg

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