RussianPatents.com

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; non-linear optics (G02F1)

G
Physics
(41490)
G02
Optics
(1907)
G02F
Devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; techniques or procedures for the operation thereof; frequency-changing; non-linear optics; optical logic elements; optical analogue/digital converters
(547)
G02F1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; non-linear optics
(499)

G02F1/01 - For the control of the intensity, phase, polarisation or colour ( g02f0001290000, g02f0001350000 take precedence);;
(27)
G02F1/015 - Based on electrochromic elements
(6)
G02F1/017 - Based on variable absorption elements (g02f0001015000-g02f0001167000; take precedence);;
(1)
G02F1/03 - Based on ceramics or electro-optical crystals, e.g. exhibiting pockels or kerr effect (g02f0001061000 takes precedence);;
(9)
G02F1/05 - With ferro-electric properties (g02f0001035000, g02f0001055000 take precedence);;
(2)
G02F1/055 -
(1)
G02F1/061 -
(1)
G02F1/065 -
(4)
G02F1/07 - Based on electro-optical liquids exhibiting kerr effect
(1)
G02F1/09 - Based on magneto-optical elements, e.g. exhibiting faraday effect
(11)
G02F1/11 - Based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves (acousto-optical deflection g02f0001330000)
(10)
G02F1/13 - Based on liquid crystals, e.g. single liquid crystal display cells
(293)
G02F1/133 -
(178)
G02F1/1333 -
(19)
G02F1/1334 -
(2)
G02F1/1335 -
(87)
G02F1/1335 -
(87)
G02F1/1336 -
(8)
G02F1/1337 -
(13)
G02F1/1339 -
(9)
G02F1/1343 -
(24)
G02F1/1345 -
(7)
G02F1/1347 -
(1)
G02F1/135 -
(6)
G02F1/136 -
(35)
G02F1/1362 -
(7)
G02F1/1368 -
(24)
G02F1/137 -
(9)
G02F1/139 -
(1)
G02F1/15 - Based on electrochromic elements
(20)
G02F1/153 -
(5)
G02F1/155 -
(5)
G02F1/161 -
(1)
G02F1/163 -
(2)
G02F1/167 -
(5)
G02F1/19 - Based on variable reflection or refraction elements (g02f0001015000-g02f0001167000; take precedence);;
(2)
G02F1/21 - By interference
(2)
G02F1/225 -
(2)
G02F1/25 - As to hue or predominant wavelength
(1)
G02F1/29 - For the control of the position or the direction of light beams, i.e. deflection
(13)
G02F1/295 -
(6)
G02F1/31 - Digital deflection devices (g02f0001330000 takes precedence);;
(6)
G02F1/313 -
(1)
G02F1/315 -
(5)
G02F1/33 - Acousto-optical deflection devices
(15)
G02F1/335 -
(1)
G02F1/35 - Non-linear optics
(23)
G02F1/355 -
(10)
G02F1/365 -
(2)
G02F1/37 - For second-harmonic generation
(1)
G02F1/39 - For parametric generation or amplification of light, infra-red, or ultra-violet waves
(4)

Compensator for thermally induced depolarisation in absorbing optical laser element

Compensator for thermally induced depolarisation γ0 includes a compensating optical element located on an optical axis and mounted on an absorbing optical element. The compensating optical element is made of material whose parameters satisfy at least one of the following conditions: the optical anisotropy parameter of the material is negative (ξ1<0), or the thermo-optical characteristic Q1 of the material has a sign opposite to that of the thermo-optical characteristic Q0 of the material of the absorbing optical element, wherein the length L1 of the compensating optical element and the position of the crystallographic axes thereof is defined by the choice of the material of the compensating optical element and the minimum condition of overall thermally induced depolarisation in the absorbing optical element - compensating optical element system.

Single crystal, method for producing same, optical insulator and optical processor using same

Invention relates to the technology of producing a terbium aluminium garnet single crystal which can be used as a polarisation rotator (Faraday rotator) in optics. The single crystal is a terbium aluminium garnet single crystal in which part of the aluminium is replaced with lutetium (Lu) and which has the following chemical formula: ( T b a − y L y ) ( M b − x N x ) A l 3 − z O 12                          ( 1 ) , wherein L represents Sc, M represents at least one type of element selected from a group consisting of Sc and Y, N contains Lu, and a, b, x, y and z satisfy the following formulae: 2.8≤a≤3.2; 1.8≤b≤2.2; 0.01≤x≤0.6; 0≤y≤0.5; and -0.5≤z≤0.5. The single crystal of said composition is capable of providing a larger Faraday rotation angle than a terbium gallium garnet (TGG) single crystal not only in the wavelength range of 1064 nm or more, but in the wavelength range smaller than 1064 nm, and is also capable of sufficiently inhibiting decrease in transmittance in the short wavelength region (400 to 700 nm) unlike TGG.

Lighting device, display device and television receiver

Group of inventions relates to lighting engineering. Backlight lighting device (24) is equipped with backlight base (22) with mounted LED unit (32) and a light-conducting plate (20), which lateral surfaces are light-receiving surfaces (20a). The LED unit (32) is faced to light-receiving surfaces (20a) of the light-conducting plate (20). The backlight base (22) has guide pins (40) protruding from the base plate surface (22a), at that the light-conducting plate (20) has concave connecting sections (38) at positions faced to the guide pins (40), while the guide pins (40) are coupled to the connecting sections (38). Lateral surface of each guide pin (40) is equipped with a through hole (40a), which passes through the above lateral surface.

Method and apparatus for reading, measuring or determining parameters of display elements combined with display control circuit, and system using said method and apparatus

Invention relates to means of calibrating a display device. The method comprises using a control circuit to transmit a control signal with a first level between a first and a second electrode of a display device, linearly varying the control signal from the first level to a second level, monitoring electrical response from the control circuit, transmitting a feedback signal to the control circuit based on the electrical response, using the control circuit to interrupt linear variation of the control signal in response to the feedback signal.

Method and apparatus for reading, measuring or determining parameters of display elements combined with display control circuit, and system using said method and apparatus

Invention relates to microelectromechanical systems of display devices. The apparatus comprises an array of interferometric modulators, a control circuit which transmits a signal through a first and a second electrode of one of the interferometric modulators, which changes the state of said modulator from a first state to a second state and back to the first state, a feedback circuit which measures electrical response of said modulator in response to the signal, a processor which controls a driver circuit, obtaining data characterising the measured response, and determining performance of the modulator based on the response, a storage device which interacts with the processor.

Method of increasing power density of optical radiation inside medium

Invention relates to optics and a method of increasing power density of optical radiation inside a medium. The method includes forming a medium in the form of a multilayer periodic structure having a band gap in the transmission spectrum, as well as narrow resonance peaks of full transmission and directing radiation into said medium, wherein the wavelength of said radiation matches one of the resonance peaks of full transmission.

Electroconductive adhesive for electrochromic devices

Electroconductive adhesive contains the following components in the following ratios, wt %: 20-60 polymer-oligomer complex with adhesive properties, 3-20 ion source, 20-70 solvent. The polymer-oligomer complex used is a hydrogen-bond stoichiometric complex obtained from high-molecular weight polyvinyl pyrrolidone, taken in amount of 50-80 wt %, and oligomeric polyethylene glycol telechelic, taken in amount of 20-50 wt %. A method of obtaining an electrolyte includes mixing said components in a mixer to obtain a homogeneous transparent viscous composition. The electrochromic device has two substrates with an optically transparent conducting layer between which there is an electrochromic layer in form of an oxide or polymer film, said electrolyte and a counter electrode.

Image projecting light-emitting system

Invention refers to illumination engineering and is intended to form controlled image (10) of illuminated spots (11a-11b) on remote plane (3) of the projected image. Light-emitting system (1) includes a variety of individually controlled light-emitting devices (6a-6c) made in matrix (5) of light-emitting devices with pitch (PLS) of light-emitting devices, and optic system (7) arranged between matrix (5) of light-emitting devices and plane (3) of the projected image. Optic system (7) has the possibility of projecting the light emitted by matrix (5) of light-emitting devices onto plane (3) of the projected image in the form of projected matrix of illuminated spots (11a-11c) having pitch (Pspot) of the projected image, which exceeds pitch (PLS) of light-emitting devices.

Multielement terahertz radiation generator

Multielement terahertz radiation generator includes test sample, femtosecond laser, multielement emitter where element emitter is made in the form of crystal semiconductor with sputtered metal mask forming sharp laser illumination gradient for crystal semiconductor layer. On the boundary of illuminated and shaded parts of semiconductor layer, a sharp gradient of photoexcited charge carrier concentration is formed parallel to the semiconductor surface. In addition the device includes elliptical mirror forming a focused terahertz radiation beam, while multielement emitter includes a raster of cylindrical microlenses distributing laser radiation between element emitters and illuminating only those semiconductor layer areas involved in terahertz radiation generation. The metal mask is made in the form of flat metal stripes.

Method of controlling optical signal modulation in liquid crystal device

Method of controlling optical response of a liquid crystal device includes applying ac voltage with a rectangular signal of a different frequency across the liquid crystal device, wherein the polarity of the potential at the electrodes does not change as a result of using a unipolar square waveform. To control optical signal switching, the liquid crystal devices employ direct current pulses and ac voltage with a sinusoidal and rectangular pulse of a different frequency.

Method for dispersion compensation of light polarisation states and high-speed electrooptical modulator based on chiral liquid crystals

Invention relates to electronics and specifically to electrooptical devices based on liquid crystals for controlling polarisation properties and intensity of light flux, and for displaying and processing information. A high-speed liquid crystal modulator based on a chiral liquid crystal further includes at least two compensating phase plates - with anomalous and normal dispersion of birefringence, which enables to eliminate dispersion of light polarisation states which is typical for chiral liquid crystals and expand the spectral range of high-contrast light modulation across the entire visible spectrum.

Magnetooptic material

Magnetooptic material is an epitaxial monocrystalline film of iron garnet of the composition (YBi)3(FeGa)5O12, which is grown on a substrate of nonmagnetic garnet with a high lattice constant a = 12,380 A o / − 12,560 A o / . The epitaxial film contains 0.1-0.4 formula units of Mg2+ ions. The substrate of nonmagnetic garnet can be made from (GdCa)3(GaMgZr)5O12, or Ca3(NbLi)2Ga3O12, or Ca3(NbMg)2Ga3O12, or Ca3(NbZr)2Ga3O12. The disclosed material has a magnetooptic figure of merit of 56-60 deg/dB at λ=0.8 mcm, 350-380 deg/dB at λ=1.3 mcm, coercitive force of about 2.5-15.3 Oe.

Lamp

Invention relates to lighting engineering. A lamp (100) contains at least one light-generating element (2), a partially transparent lampshade (5) placed around the light-generating element (2) over the angle of at least 180°, but 360° is more preferable, at least one liquid crystal screen (10) placed between the light-generating element and the lampshade, and a controller (20) to control the liquid crystal screen so that it has sections of mutually variable light transmission in the range of 0% and 100% so that an image is displayed. In the horizontal cross-section the liquid crystal display is continued in two dimensions with its concave side faced to the light-generating element. The liquid crystal screen should be flexible preferably so that it may be bended and shaped cylindrically around the light-generating element.

Display device and method of its manufacturing

Display device contains a sealing element (40) in the form of a frame containing inner materials of the sealing element that include at least either fibreglass materials (42) or conductive balls (43) placed between the first substrate (30) and the second substrate (20) at the section of it outer perimeter. At the first substrate (30) there is a salient angle (36) at the intermediate section in direction of the sealing element (40) width, which is continued along the sealing element (40) and protruded towards the second substrate (20) with a gap between the salient angle (36) and the second substrate (20). Density of inner materials distribution in the sealing element in the area (SL2) corresponding to the salient angle (36) is lower than in the area (SL1) located furtherer from the substrate centre then the salient angle (36), or inner materials of the sealing element are not contained in the sealing element (40) in the area (SL2) corresponding to the salient angle (36).

Passive optical shutter

Passive optical shutter has a reflecting metal film on a substrate, placed in the intermediate real image plane of the optical system of a radiation detector. The film has an underlayer of a thermal decomposing chemical compound with emission of gases.

Illumination system and liquid crystal display device using said system

Invention relates to lighting engineering. The illumination system comprises a light-emitting part (1), having light sources configured to emit light beams at different dominant wavelengths, and an image-forming optical system (3), having microlenses (3a) configured to focus the light beams emitted by the light-emitting part (1). The illumination system is configured to illuminate a liquid crystal panel with light beams passing through the image-forming optical system (3). The liquid crystal panel has pixels which are spaced apart by a predetermined spacing and each of which has display elements corresponding to each separate colour, and under the condition that the spacing of the pixels is denoted by P, and the image-forming optical system has a zoom factor (1/n), the light sources are spaced apart by a spacing P1, given as P1=n × P, and the microlenses are spaced apart by a spacing P2, given as P2=(n/(n+1)) × P.

Liquid crystal display device display defect correction method

Liquid crystal display device display defect correction method

Display device has an active matrix substrate, having a plurality of scanning lines which run in a row direction, a plurality of signal lines (13) which run in a column direction and a signal line control circuit which applies voltage as a display signal on each of the signal lines. The plurality of signal lines include a first type of signal line (13a) which does not cross another signal line, and a second type of signal line (13b) which crosses an adjacent signal line on an insulating film outside the display region. The active matrix substrate further includes a correction line (40) which is electrically separated from the plurality of signal lines and has a floating potential in the vicinity of the region (IR) of intersection, where the second type of signal line crosses an adjacent signal line.

Apparatus for modulating monochromatic optical radiation

Apparatus for modulating monochromatic optical radiation

Invention relates to optical engineering. The apparatus for modulating monochromatic optical radiation comprises an optically transparent medium in which are mounted a splitter for splitting monochromatic optical radiation into a first and a second propagation channel, a reflecting element in the second channel, a coherent summation portion for forming modulated monochromatic optical radiation. The splitter used for splitting monochromatic optical radiation into a first channel and a second channel is a splitting cube consisting of two identical triangular prisms joined by their large faces. The first channel is equipped with its own reflecting element. Each reflecting element is deposited on the corresponding face of the splitting cube on the path of the monochromatic optical radiation in the first and second channels. The splitting cube is mounted such that it can move back and forth outside the interface plane of its prisms, and the angle α between the velocity vector of the back and forth movement and the interface plane of the prisms of the splitting cube is selected from the relationship , where fm is the required modulation frequency of the monochromatic optical radiation, λ0 is the wavelength of monochromatic optical radiation at the input of the splitting cube, υ is the velocity of the splitting cube.

Method of limiting intensity of laser radiation

Method of limiting intensity of laser radiation

In the method of limiting intensity of laser radiation, which involves feeding laser radiation flux to the input of a device which limits laser radiation power, the laser radiation flux is fed by successively transmitting the laser radiation flux through a first stage mounted at the input of an optical system in the focal plane of two interfaced lenses, and then through a second stage. The first stage is characterised by variable transmission factor of laser radiation, which is a function of intensity of the laser radiation flux, and includes a laser radiation transmitting cell which is in form of a glass cuvette filled at pressure of not more than 5 atm with an inert gas, e.g. xenon, which does not have absorption bands in the operating spectral region. The second stage is a nonlinear limiter and includes an element which limits laser radiation power, which is in form of an optically transparent matrix, e.g. a polymer film or a glass plate, with embedded nano-dispersed carbon-containing filler. After the second stage, the laser radiation flux is directed into a light sensor which detects the value of the converted laser radiation flux.

Substrate of active matrix and liquid-crystal display device

Substrate of active matrix and liquid-crystal display device

Active matrix substrate includes a variety of pixel electrodes placed in the matrix and a source interconnection stretched in the direction of the leg. The source interconnection has the first lateral section stretched along one side in the leg direction of at least one pixel electrode out of the variety of pixel electrodes crossing the section that crosses the pixel electrode and the second lateral section stretched along the other side in the direction of the pixel electrode leg. The first and second lateral sections are interconnected by means of a big crossing section, and at least one crossing section is provided at each of two pixel electrodes adjusted in the leg direction out of the variety of pixel electrodes.

Lighting device, display device and television receiver

Lighting device, display device and television receiver

Invention relates to the field of lighting equipment. A highlighting unit 12 consists of a LED 17, a chassis 14 including a base plate 14a mounted at the side opposite to the side of the light output in regard to the LED 17, at that the chassis 14 contains the LED 17 and the first reflective sheet 22 that reflects light. The first reflective sheet 22 includes a four-sided base 24 running along the base plate 14a and two elevated portions 25 and 26, each of these portions is elevated from each of two adjacent sides of the base 24 in direction of the light output. There is a junction J between two adjacent side edges 25a and 26b of the elevated portions 25 and 26. In the highlighting unit 12 the side edge 25a of the first elevated portion 25 out of the two elevated portions 25 and 26 has a face piece 28 faced to the side edge 26a of the elevated portion 26 in the same direction in which the first elevated part 25 is elevated from the base 24 outside towards axis Y, and the first elevated part 25 and the face piece 28 are extruded towards direction of the light output.

Method of switching nxn optical channels and multichannel switch (versions)

Method of switching nxn optical channels and multichannel switch (versions)

At each channel assembly step, control electrical signals are transmitted to corresponding pairs of total internal reflection cells simultaneously and in parallel for all discharges in order to change the refraction index of material of said cells and, consequently, to transmit optical flux to a neighbouring waveguide. To implement the method, a multichannel switch is disclosed, the switching circuit of which is staged and branched, with parallel connection of input and output optical channel in each stage. Connection addresses are set using lines of optical modulators. The number of channels is doubled using an optical splitter, and transmission of signals from channel to channel is carried out by transmitting electrical signals to the total internal reflection cells. In the first version of the device, signals are directed into cells by electrodes connected thereto, and in the second version using an array of light emitters and optical isolators.

Display device

Display device

Invention relates to display devices such as a liquid crystal display device. The display device comprises first and second substrates facing each other. The first substrate has a substrate body, a first group of interconnections provided on the substrate body, and a second group of interconnections with an insulating film situated between the groups of interconnections. A channel (27) is formed over the first group of interconnections (21, 23a) of the first substrate, which continues along the section of the outer periphery of the substrate and across the first group of interconnections (21, 23a). An underlying layer (27a) of metal is provided in the same layer as the second group of interconnections (23), under the channel (27), at least in regions where the channel (27) overlaps the first group of interconnections (21, 23a) when viewed from above.

Liquid crystal display device

Liquid crystal display device

Invention relates to liquid crystal display devices. The device includes a pair of substrates spaced apart by a plurality of column-type spacers, and a liquid crystal layer in between the pair of substrates. One of the pair of substrates includes layers coloured in multiple colours and a light-shielding layer. At least one of the layers coloured in multiple colours has a region in which a coloured layer of the same colour is integrally placed on corresponding image elements adjacent to each other and has a straight section and a protruding section which protrudes from the straight section. At least one of the plurality of column-type spacers is situated at a point which intersects with the protruding section. The outline of the protruding section has a shape which corresponds to the outline of the column-type spacer situated at the point which intersects with the protruding section.

Scanning signal line drive circuit and display device equipped with said circuit

Scanning signal line drive circuit and display device equipped with said circuit

Group of inventions relates to computer engineering and can be used in display devices. The scanning signal line drive circuit of a display device comprises a plurality of shift registers, each including a plurality of circuits with two stable states, wherein a clock signal provided in each shift register as a clock signal for driving the scanning signal line varies between a first level and a second level at specific clocking, which differs from one shift register to the other, each circuit with two stable states having an output unit, a switching element for controlling the output, a unit for turning on the first unit and a unit for turning off the first unit.

Nano-resonator

Nano-resonator

Invention relates to laser engineering. The nano-resonator consists of two comb-type intersecting photonic-crystal waveguides which form a resonance chamber at the point of intersection. Slits are made in the area of the resonance chamber, wherein the length of a slit is at least double its width. The slits can be situated equidistant from the centre of intersection of diagonals of the resonance chamber. The slits can also be situated inside the waveguide and can be filled with a nonlinear optical material, e.g. chalcogenide glass.

Liquid crystal display device

Device includes a pair of substrates and a liquid crystal layer placed between the pair of substrates. One of the pair of substrates includes scanning lines, signal lines, storage capacitor lines, thin-film transistors connected to the scanning lines and the signal lines, and pixel electrodes connected to the thin-film transistors, and the other includes a counter electrode. A scanning line and a pixel electrode form a gate-drain capacitance, wherein the gate-drain capacitance formed by a pixel electrode with greater pixel capacitance among pixel electrodes situated in the same pixel is greater than the gate-drain capacitance formed by a pixel electrode with less pixel capacitance among pixel electrodes situated in the same pixel. The overlapping region of each of the pixel electrodes, overlapped by a scanning line, first increases in the direction of propagation of the signal of the scanning line, but the rate of increase eventually decreases in each of the pixel electrodes, respectively arranged for monochromatic image elements, wherein the rate of increase differs among pixel electrodes with different pixel capacitances.

Acoustic-optic multichannel analyser

Acoustic-optic multichannel analyser

Invention belongs to radio measuring equipment and can be used as a broadband measuring instrument of frequency of radio signals. In the acoustic-optic multichannel analyser containing a laser, a collimator, an acoustic-optic deflector, a totally reflecting mirror, two integrating lenses and two lines of photodetectors, in which the measured radio signal is sent to a piezoconverter of the acoustic-optic deflector, and on one of its optical sides the laser radiation falls under Bragg's negative angle and diffracts in the direction of the serially located the first integrating lens and the first line of photodetectors, and on the second optical side of the acoustic-optic deflector the laser radiation, being re-reflected from a totally reflecting mirror, falls under Bragg's positive angle and diffracts in the direction of serially located the second integrating lens and the second line of photodetectors, in addition between the first and second sides of the acoustic-optic deflector and the first and second integrating lenses there is the first and the second polaroids, and the acoustic-optic deflector is executed on the basis of lithium niobate with the slanting angle of cut equal to β, and the abnormal diffraction characterised by existence of two identical pass-bands ΔfΣ1 and ΔfΣ2 near different corner frequencies f01 and f02, set by the corresponding size of an angle β, and connected to each other by means of f02-f01≃ΔfΣ1≃ΔfΣ2, besides, the light length of the piezoconverter and acoustic-optic deflector is chosen from a condition of combination of bands ΔfΣ1 and ΔfΣ2 Σ by the set level of unevenness of diffraction efficiency.

Method of deflecting light beam

Method of deflecting light beam

Invention relates to quantum electronics and specifically to devices for controlling optical radiation parameters, and can be used in computer and control system devices. The method of deflecting a light beam involves passing a light beam through a plate made of electrooptical material on whose surface there are control electrodes which are connected to different potentials, which generate a deflecting quasitriangular step phase function, mounting a second plate made of electrooptical material which is in contact with the control electrodes, and passing the light beam through both plates. The direction of propagation of the light beam is inclined to the surface of the plates.

Liquid crystal display device

Liquid crystal display device

Liquid crystal display device includes pixels, having first and second subpixels, and a first CS bus line which is associated with the first subpixel. The first subpixel includes a liquid crystal capacitor and a first storage capacitor. The second subpixel includes a liquid crystal capacitor. First voltage of a CS signal applied across the first storage capacitor through the first CS bus line is an oscillating voltage, one period of which is shorter than one period of vertical scanning, and has first and second potentials which set a maximum amplitude and a third potential between the first and second potentials. When voltage Vg of the gate signal applied in the gate bus line becomes low, first voltage Vsca of the CS signal applied in the associated first CS bus line has a third potential.

Ambient light system for display device

Ambient light system for display device

Display device contains ambient light system (100) to emit ambient light (106) to the wall (107) behind display device (104). Ambient light system includes at least one source (101) of light located in the central part of display device (104) rear side and at least one reflector (102) located at display device (104) rear side. At least one reflector (102) is located at the periphery of display device (104) rear side so that when display device (104) is located close to the wall (107) the light emitted by at least one source of light is reflected by reflector (102) towards the wall (107) in such way that reflected light (106) at least partially encloses the observed area of display device (104) at the periphery.

High-speed low-voltage liquid crystal 3d glasses

High-speed low-voltage liquid crystal 3d glasses

Invention relates to optoelectronics and display equipment and can be used in high-speed 3D glasses when operating with virtually any type of 3D display, designed to operate with active 3D glasses with standard (60-160 Hz) and high (hundreds of hertz) and ultra-high (up to several kilohertz) frame frequency. According to the invention, a layer of non-helicoidal ferroelectric liquid crystal with optimised physical parameters is used in optical shutters of high-speed liquid crystal 3D glasses.

Lighting device, display device and television receiver

Lighting device, display device and television receiver

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.

Liquid crystal display device

Liquid crystal display device

Liquid crystal display device has a liquid crystal layer and a pair of substrates between which the liquid crystal layer is inserted. At least one of the pair of substrates has an electrode which applies voltage to the liquid crystal layer. The electrode which applies voltage to the liquid crystal layer has two or more linear portions. The substrate having an electrode which applies voltage to the liquid crystal layer from the pair of substrates has a floating electrode which overlaps at least two of the two or more linear portions through an insulating film. The width of the floating electrode is greater than the width of each of the two or more linear portions.

Liquid crystal display panel and liquid crystal display device

Liquid crystal display panel and liquid crystal display device

Panel has first and second insulating substrates and a liquid crystal layer in between. One of the substrates has a side which is in contact with the liquid crystal layer, a common electrode with protrusions and/or recesses, and the other has scanning signal lines, data signal lines and image element electrodes. Each of the image element electrodes has a recess section and a protrusion section; the image element electrodes are electrically connected to corresponding drain electrodes of active elements which are provided to control image element electrodes through corresponding through-holes provided in the insulating layer. Image element electrodes of the other substrate are situated closer to the liquid crystal layer than the insulating layer. At least part of the protrusion section of the image element electrode coincides with the through-hole. The image elements are identical to each other in the orientation structure of liquid crystal molecules directed in different directions in the liquid crystal layer.

Liquid crystal display device

Liquid crystal display device

In the liquid crystal display device, a first auxiliary line 430 is narrow and a second auxiliary line 440 is situated at the closest position to the periphery of the substrate. The first auxiliary line is situated between the control signal generator circuit of the scanning line and a display region. The second auxiliary line is situated between the control signal generator circuit of the scanning line and the edge of the first substrate, which is opposite to the display region with respect to signal generator circuit.

Device for imaging terahertz radiation sources

Device for imaging terahertz radiation sources

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.

Method for spectral filtration of diffusion radiation

Method for spectral filtration of diffusion radiation

Invention relates to a method for spectral filtration of radiation using interference filters in conditions of low intensity and high divergence of radiation flux. Spectral filtration is carried out using a multilayer interference filter, having layers with a periodically varying refraction index. The interference filter also has a cellular structure passing on the entire thickness of the filter, said structure having vertical light-intercepting walls which splits radiation passing through the filter into separate light flux. Each light flux has a cross-section which is not greater than the spatial coherence area at given divergence of the light flux, and spectral filtration is carried out separately for each light flux.

Active matrix substrate and display device

Active matrix substrate and display device

Invention relates to an active matrix substrate and a display device. The present invention discloses an active matrix substrate in which a peripheral region is provided outside the display region. On the active matrix substrate, first, second and third transistors, a floating connection, a switching connection, a basic connection and a branched connection which is electrically connected to the basic connection are situated in the peripheral region. Each of the floating connection and the branching connection is electrically connected to the first and second transistors and has an intersection area which crosses with the switching connection, wherein the third transistor is provided in the intersection area. The gate electrode of the third transistor includes a switching connection, one of its source and drain electrodes includes a branching connection and the other of said source and drain electrodes includes a floating connection.

Shift register, display driving circuit, display panel and display device

Shift register, display driving circuit, display panel and display device

Invention relates to a shift register and different types of display driving circuits. The shift register of a display driving circuit carries out simultaneous selection of a plurality of signal lines using a simultaneous selection signal (AONB-signal). A stage of the shift register includes (i) an RS flip-flop and (ii) a signal generating circuit which generates an output signal of the stage by selectively outputting a signal in response to an output of the flip-flop. The output signal (e.g., OUTn signal) of the stage (i) becomes active due to activation of the simultaneous selection signal and then (ii) remains active while the simultaneous selection is being performed, and the output (Qn signal) from the flip-flop is inactive (Low) during a period in which a setting signal (SBn) and a resetting signal (Rn) are both active. This makes it possible to quickly carry out the simultaneous selection of all signal lines and the initialisation of the shift register.

Display device

Display device

Invention relates to a display device equipped with an optical sensor in a pixel region. Display device has optical sensor having a highly sensitive photosensitive element. The photosensitive element is provided with a diode (D1), reset signal wiring (RST) that supplies a reset signal, readout signal wiring (RWS) that supplies a readout signal, a storage node whose potential (VINT) changes in accordance with the amount of light received by the diode (D1) in the period from when the reset signal is supplied until when the readout signal is supplied, an amplification element (C1) that amplifies the potential (VINT) in accordance with the readout signal, and a sensor switching element (M2) for reading out the potential amplified in the output wiring. The potential of the screening film (LS), provided on the back surface of the diode, is fixed equal to a constant potential (VLS) which satisfies the following relationship: VLS≥VRST.H.

Circuit board, manufacturing method of card, display panel and display device

Circuit board, manufacturing method of card, display panel and display device

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).

Liquid crystal display device

Liquid crystal display device

Liquid crystal display device (1) according to the present invention includes: gate bus lines (2); source bus lines (4); CS bus lines (6); gate electrodes; source electrodes; first transistors (TFT1); second transistors (TFT2); first pixel electrodes; second pixel electrodes; pixel regions (8) including a first sub-pixel (8a) and a second sub-pixel (8b); pixel regions (10) including a first sub-pixel (10a) and a second sub-pixel (10b); pixel regions (12) including a first sub-pixel (12a and a second sub-pixel (12b)); gate electrodes; drain electrodes; third transistors (TFT3); first buffer capacitor electrodes; second buffer capacitor electrodes; and capacitors (Cd). Capacitances of the capacitors (Cd) in the respective pixel regions vary depending on the colours displayed by the respective pixel regions.

Liquid crystal display device

Liquid crystal display device

In the liquid crystal display device, the common electrode (45) comprises a first common electrode (45a) and a second common electrode (45b). The pixel electrode (60) includes a first trunk portion (61a), a second trunk portion (61b), a plurality of first branch portions (62a) extending in the first direction, a plurality of second branch portions (62b) extending in the second direction, a plurality of third branch portions (62c) extending in the third direction, and a plurality of fourth branch portions (62d) extending in the fourth direction. When a pixel is viewed from a direction perpendicular to a plane of the TFT substrate, the boundary between the first common electrode (45a) and the second common electrode (45b) extends over the first trunk portion (61a) of the pixel electrode (60) in a same direction as the direction of the first trunk portion (61a).

Decorative canvas with liquid crystals

Decorative canvas with liquid crystals

Device includes a two-part canvas made of polymer material and separate parts attached thereto, said separate parts consisting of two glasses with transparent electrodes with liquid crystal material in between. Each of the separate parts is in form of a polyhedron.

Liquid crystal display device and method for manufacturing same

Liquid crystal display device and method for manufacturing same

Liquid crystal display device includes a liquid crystal display panel and a touch input panel. One of said panels has a first alignment mark and serves as a reference point for alignment between the panels, and the other has a second alignment mark which consists of a transparent element and is aligned with the first alignment mark.

Liquid crystal display device

Liquid crystal display device

Device includes first and second substrates with a liquid crystal layer in between. The first substrate includes a signal line, a scanning line, an insulating film, a first electrode to which an image signal is transmitted through the signal line, and a second electrode. The first electrode includes a first toothed comb-shaped part. The second electrode includes a second toothed comb-shaped part and a rod-shaped part connected to the second toothed comb-shaped part, wherein the first toothed comb-shaped part and the second toothed comb-shaped part lie in a plane such that they face each other in a pixel. The second substrate has a third electrode which covers at least a display region. The rod-shaped part is arranged to overlap the signal line and the scanning line in a position closer to the liquid crystal layer than the signal line and the scanning line. The insulating film is placed between the rod-shaped part and each of the lines.

Display device and television receiver

Display device and television receiver

Display device includes a board on which a light source is mounted, a liquid crystal panel, a first and a second housing and a reflecting plate. The liquid crystal panel is mounted to the first housing. The board is mounted to the second housing. The first and second housings are joined to each other as an external housing which forms the outer appearance of the liquid crystal display device. The reflecting plate is placed on the inner surface of the second housing in a position in which the reflecting plate is held by a light-emitting diode board.

Flip-flop, shift register, display device driving circuit, display device, display device panel

Flip-flop, shift register, display device driving circuit, display device, display device panel

Flip-flop includes a first (p-type), second (n-type), third (p-type) and fourth (p-type) transistors; input terminals; first and second output terminals, the first and second transistors constituting a first CMOS circuit, the gate terminals of the transistors are connected to each other and drain terminals are connected to each other, the third and fourth transistors constituting a second CMOS circuit, the gate terminals of the transistors are connected to each other and drain terminals are connected to each other, the first output terminal is connected to the gate side of the first CMOS circuit and the drain side of the second CMOS circuit, the second output terminal is connected to the gate side of the second CMOS circuit and the drain side of the first CMOS circuit, at least one input transistor included in the group of the first through fourth transistors, a source terminal of the input transistor being connected to one of the input terminals.

Method of making liquid crystal panel, liquid crystal panel and correction device

Method of making liquid crystal panel, liquid crystal panel and correction device

Method involves a step of correcting a defective area 50 of an ordering film 30, formed on a substrate 12, using a correcting stamp 60 coated with a correcting dye 61. The correction step includes a step (a) of placing the correcting stamp 60 in the zone (correction zone) 55 having the defective area 50, step (b) of moving the correcting stamp 60, which is in contact with a substrate zone, from a position 60a where said correcting stamp 60 was placed at step (a), and step (c) of moving the correcting stamp 60 once more from the position 60b to where the correcting stamp 60 was moved at step (b), to position 60a where the correcting stamp was situated at step (a).

Another patent 2513536.

© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English.