Keyboard unit for portable terminal

FIELD: keyboard unit for use together with terminal which contains illuminating elements.

SUBSTANCE: keyboard unit contains a keyboard which has at least one elastic layer and at least one button on elastic layer, wave conductor for transmitting and redirecting light through it, where wave conductor is positioned under elastic layer and has at least one reflective element for reflecting light towards appropriate button, and switching substrate under the wave conductor, which substrate has at least one switch formed on its upper surface, and on button press, a part of wave conductor is deformed towards the switching substrate, activating the switch.

EFFECT: reduced number of light diodes, used for building a keyboard, reduced losses of light, transferred to each button.

5 cl, 9 dwg

 

The prior art inventions

1. The technical field to which the invention relates.

The present invention relates to a node of the keyboard for use with terminal and, more specifically, to the host keyboard for use with a terminal, which includes lighting elements.

2. Description of the prior art,

Typically, the host keyboard conventional portable terminal, including without limitation, the wireless communication terminal includes a keyboard and a switching substrate. The keyboard includes a plate elastic layer and the many buttons. Lots of buttons formed on the first surface of the elastic layer. The keyboard on the surface of each of the buttons have letters, numbers and symbols, respectively. Switching the substrate has an array of switches made integral with it to create an electrical contact when pressing each button. Switching the substrate converts pressing the appropriate button into an electric signal.

The portable terminal has lighting elements, allowing the user to use the keyboard in the dark. As lighting elements used many light-emitting diodes and organic electroluminescent elements. Light emitting diodes are essentially placed on a printed circuit Board, and neora the practical electroluminescent elements inserted into the elastic lining.

Figure 1 shows a cross-section normal host keyboard 100, containing many light-emitting diodes. As shown in figure 1, is a regular host of the keyboard contains the relay substrate 120, the diodes 122 and the keyboard 110.

The keyboard 110 includes elastic plate layer 111, lots of buttons 112 and the many ledges street 111A formed on the second surface of the elastic layer 111, which is located opposite the first surface. Letters or similar symbols printed on the first surface of each button 112. Each button 112 and the corresponding ledge street 111A aligned vertically.

Relay substrate 120 includes a plate circuit Board 120A and many switches 121. Many switches 121 formed on the upper surface of the printed circuit Board 120A, located in front of the keyboard 110. Each switch contains a conductive contact element and the conductive dome, completely covering the contact element. The light emitting diodes 122 are installed on the upper surface of the printed circuit Board 120A.

To ensure operation of the switch 121 each light emitting diode 122 is preferably removed from vertical alignment with the corresponding button 112. That is, the light emitting diodes 122 are respectively disposed between the switches 121 to illuminate the corresponding buttons 112 oblique angle is m This in turn leads to the fact that the light is not evenly illuminate each button 112. Therefore, the corresponding buttons in the dark can be dimmed.

To solve this problem was proposed some ordinary nodes keyboards that contained a keyboard having an elastic layer and an inorganic electroluminescent elements inserted into the elastic layer. However, to use inorganic electroluminescent elements requires a separate AC power source. That is, a node of the keyboard requires an inverter to convert DC to AC. In the result, the volume and cost of the host keyboard increase. In addition, the conversion of DC to AC generates noise in a portable terminal.

Brief description of the invention

Accordingly, the present invention aims to reduce or overcome the above problems of the prototype and to create additional benefits by creating a node keyboard for use with a terminal (e.g., portable terminal), which contains a waveguide that can cover the keys with uniform brightness.

According to the first variant implementation of the present invention, the host keyboard includes a keyboard having at least one elastic layer and at least one is a button on the elastic layer, a waveguide for transmission and direction of light on it, and the waveguide is placed under elastic layer and has at least one reflective element to reflect light to the respective button, and switching the substrate below the waveguide and having at least one switch corresponding to the button.

Brief description of drawings

The present invention will be better understood from the following detailed description with reference to the accompanying drawings, in which

figure 1 is a view in cross section normal host keyboard for a portable terminal,

figure 2 is a view in cross section of the host keyboard for a portable terminal according to an illustrative version of the present invention,

figure 3 is a view in section in an enlarged scale of the waveguide host keyboard for a portable terminal according to an illustrative version of the present invention, is shown in figure 2,

4 is a top view of the waveguide of the host keyboard for a portable terminal according to an illustrative version of the present invention, where the waveguide switch is located on the substrate, shown in figure 2,

5 and 6 are views illustrating the waveguide host keyboard for a portable terminal according to an illustrative version of the present invention, where the waveguide is located beneath the keyboard, shown in figure 2,

Fig.7-9 views illustrating the waveguide node to the air tours for portable terminal according to an illustrative version of the present invention, where the waveguide switch is located on the substrate, shown in figure 2.

Detailed description

Next will be described versions of the present invention with reference to the accompanying drawings. To facilitate understanding of the detailed description of known functions and configurations used in the device, is lowered to the essence of the present invention was understandable.

Figure 2 presents the cross section of the node 200 keyboard for illustrative version of the present invention. Figure 3 presents an enlarged cross section of the node 200 keyboard of figure 2. 4 is a top view illustrative of the waveguide 220 placed on the switch substrate 230 of the node 200 keypad 2.

As shown in Fig.2-4, the node 200 keyboard for illustrative version of the present invention includes a keyboard 210, the waveguide 220, switch substrate 230 that is located underneath the second surface 222 of the waveguide 220 for the formation of at least one switch a and 233, and at least one source 241 and 242 of the light.

The keyboard 210 includes an elastic layer 211 and at least one button 212, performed on the elastic layer 211.

Elastic layer 211 in the illustrative version of the present invention has a plate shape with at least one button 212 and pressure protrusions 211A formed on its both surfaces and combined the vertical. Button 212 can be formed on the upper surface of the elastic layer 211. Push the protrusions 211A can be performed on the lower surface of the elastic layer 211 so as to be adjacent to the first surface 221 of the waveguide 220. Elastic layer 210 made of a material having a very high degree of elasticity, for example, of synthetic resin and silicone. Therefore, the button 212 is returned to its original position after it is pressed by the user.

Letters, numbers, etc. can be printed on the upper surface of each button 212. Button 212 is made of the same material as the elastic layer, or other material and may be made integral with the elastic layer 211. At the same time button 212 can be made of a material such as polycarbonate and acrylic resin, which in turn are attached to the elastic layer 211. If necessary buttons 212 may have any shape, including circular, oval, square, etc. Between the buttons 212 and the elastic layer 211 can be inserted separate layers/films, and for separating such films can be used polyurethane film.

On the lower surface opposite the upper surface of the elastic layer 211 of the button, can be done a lot of push protrusions 211A for illustrative version of the present invention. Push the protrusions 211A made integral with the elastic layer 211. Alternatively, they may be formed separately and then attached to the elastic layer 211 glue.

The waveguide 220 may have a first surface 221 facing the lower surface of the elastic layer 211 and the second surface 222. The second surface 222 may include reflective elements a to reflect light towards the corresponding button 212 that are located in areas corresponding to the buttons 212, respectively. Next, one side of the waveguide 220 may be connected to sources 241 and 242 of the light or contains sources 241 and 242 of the light and seeks to convey and direct the light from these sources 241 and 242 through the waveguide 220 with the exception of pre-selected points of exposure (for example, buttons 212). The waveguide 220 can include a light guide plate or a set of optical fibers. The light guide plate can be made of any optically transparent material using known in the art materials and technologies. For illustrative examples of these materials include silicone, polycarbonate or acrylic resin. Illustrative examples of known casting techniques are injection molding or casting in a mold. The set of optical fibers may be manufactured by bonding multiple optical fibers.

The light guide plate may have a convex shape at the points where the switches 233, as p is shown in figure 2. Alternatively, the light guide plate may be flat or essentially flat without markedly convex sections or may have any other form to the extent in which it performs the function of the light guide.

Reflective elements a can be formed in areas on the second surface 222 of the waveguide 220 to be given to each pressure protrusion 211A for illustrative version of the present invention. Reflective elements a can diffuse to reflect part of light transmitted through the waveguide 220. This leads to the illumination of the buttons 212.

Sources 241 and 242 of the light in the illustrative version of the present invention can be attached to one side of the switch substrate 230. Sources 241 and 242 of the light installed on the switch substrate 230 so that the light-emitting surface sources 241 and 242 of the light are opposite one end of the waveguide 220. Light emitted by the sources 241 and 242, passes through the end face of the waveguide 220 and passes through the waveguide 220. As sources 241 and 242 of the light essentially you can use light-emitting diodes.

Illustrative waveguide 220, shown in figure 4, contains the first set a optical fibers, directly passing through the Central section of the waveguide 220, and a second set 220b of optical fibers surrounding the first set a optical fibers. The first set a optical in the window at the end is divided into two parts. These two parts of the first set a optical fibers connected to the sources 241 and 242 of the light. Both ends of the second set 220b optical fibers respectively connected to the sources 241 and 242 of the light.

Switch substrate 230 may have a variety of supporting protrusions 250, made on its upper surface for direction of the waveguide 220 for still seated in the socket on the upper surface of the switch substrate 230. Supporting protrusions 250 can be removed after installation of the set of optical fibers on the switch substrate 230. Using supporting protrusions 250, the waveguide 220 can be placed directly on the substrate 230 or suspended above the surface of the substrate 230. Switch substrate 230 may contain PCB sheet 232 and 231 with domes.

Printed circuit Board 232 for illustrative version of the present invention has many conductive contact elements 233, executed on its upper surface. Contact element 233 and the corresponding dome a can form each of the switches 233 and a. Further, each switch 233 and a aligned vertically with the corresponding pressure protrusion 211A. Printed circuit Board 232 may include a flexible printed circuit Board.

Sheet 231 domes located on the top surface of the PCB 232, which contains the set of conductive domes a shaped by what ushery. The corresponding dome a completely cover the corresponding contact element 233.

When the user clicks the button 212 corresponding to the push protrusion 211A elastic layer 211, located under the button 212, presses the waveguide 220 and the corresponding dome a. Pressed dome a creates electrical contact with a corresponding contact element 233.

Figure 5 and 6 shows an illustrative waveguides located under the keyboard of figure 2. Figure 5 shows the waveguide 220' in the illustrative version of the present invention, located under the keyboard 211', in which the waveguide 220' are placed under the appropriate pressure protrusion 211A'. Figure 6 presents a view showing the waveguide 220 located under the keyboard 211, where the waveguide 220 passes around each of the pressure protrusion 211A" under the keyboard 211".

7, 8 and 9 are illustrative waveguides placed on the switching substrate, shown in figure 2. Fig.7 is a view showing the waveguide 220', located on the switch substrate 230' and containing the first, second and third sets a', 220b' and 220c' optical fibers. Many of the supporting protrusions 250' departs from the switch substrate 230'.

Both ends of the first set a' optical fibers connected with a source of 241' of light, forming a closed loop. Both ends of the second set 220b' Opti is a mini-fibers also connected with a source of 242' light, forming a closed loop. Next, both ends of the third set 220C' optical fibers connected to each of the sources 241' and 242' of light, covering the first and second sets a' and 220b' optical fibers.

On Fig shows the waveguide 220, which contains the first and second sets a" and 220b optical fibers located on the switch substrate 230". Many support elements 250" acts of the switch substrate 230 to support the waveguide 220".

The first set a" optical fiber has a horseshoe shape in the illustrative version of the present invention. It is located on the switch substrate 230", surrounding a second set 220b optical fibers placed in the Central part of the switch substrate 230". Both ends of the first set a" connected with a source 241 and 243" light. In the second set 220b with a light source 242 is connected to only one end.

Figure 9 shows illustrative waveguide 220", containing the first and second sets a′′′ and 220b′′′ optical fiber and located on the switch substrate 230′′′ illustrative version of the present invention. Many of the projections 250′′′ formed on the relay substrate 230′′′ to support the waveguide 220′′′.

The first set I′′′ optical fibers has PADCO obrazow form for illustrative version of the present invention. One end of the first set a′′′ optical fibers connected to the light source 241′′′and the other end goes to one end of another set 220b′′′ optical fibers. That is, the light emitted by the source is transmitted through the first set a′′′ on the second set 220b′′′ optical fibers.

The present invention minimizes the loss of light by transmitting the light through the waveguide to each button, radiating the transmitted light through the terminal keys. In the present invention the light emitting diode is mounted on one end of the waveguide, thereby reducing the number of LEDs used to build the keyboard.

Although the present invention has been shown and described with reference to specific preferred options, it should be understood that it can be made various changes relating to the form and detail, not beyond the nature and scope of the invention defined by the attached claims.

1. Site keyboard containing

a keyboard having at least one elastic layer and at least one button on the elastic layer; and

in which the elastic layer further comprises at least one push protrusion facing the waveguide,

a waveguide for transmission and direction of light, while Volno the od placed under elastic layer and has at least one reflective element to reflect light to the respective button, while the waveguide includes at least one set of optical fibers,

switching the substrate under a waveguide having at least one switch formed on its upper surface, which is facing the ledge, and when the button is pressed, the portion of the waveguide is deformed in the direction of the switching substrate, activating the switch.

2. The node according to claim 1, in which the switching substrate includes a circuit Board and at least one sheet with domes, located on the circuit Board.

3. The node according to claim 1, in which the sets of optical fibers are at least one switch.

4. The node according to claim 1, in which the switching substrate further comprises multiple supporting projections, allowing to fix the waveguide to the switching substrate.

5. The node of claim 1, wherein the bottom surface of the waveguide is reflective element.

6. The node according to claim 1, in which the density of the at least one reflecting element are different in different positions at least one reflecting element for uniform illumination of a multitude of buttons.

7. The node according to claim 1, in which the reflecting elements cause diffuse reflection of part of light transmitted in the waveguide.

8. The node according to claim 2, in which the circuit Board is flexible.

9. The node of claim 1, wherein the switch provides the conductive contact element and the conductive dome, covering the contact element.

10. The node according to claim 2, in which at least one light emitting device is mounted on the upper surface of the PCB with its light emitting surface facing the side surface of the waveguide.

11. Site keyboard containing

a keyboard having at least one elastic layer and at least one button on the elastic layer, and

moreover, the elastic layer further comprises at least one push protrusion facing the waveguide,

a waveguide for transmission and direction of light, the waveguide is placed under elastic layer and has at least one reflective element to reflect light corresponding to the button

moreover, the waveguide includes at least one light guide plate,

switching the substrate under a waveguide having at least one switch corresponding to the appropriate button and when the button is pressed, the portion of the waveguide is deformed in the direction of the switching substrate, activating the switch.

12. The node in claim 11, in which at least one light guide plate is made of polycarbonate resin or acrylic resin.

13. The node in claim 11, in which the bottom surface of the waveguide is reflective element.

14. The node in claim 11, in which at least one is latina fiber is made flat.

15. The node in claim 11, in which the density of the at least one reflecting element are different in different positions at least one reflecting element for uniform illumination of a multitude of buttons.

16. The node in claim 11, in which the reflecting elements cause diffuse reflection of part of light transmitted in the waveguide.

17. The node in claim 11, in which the switching substrate includes a circuit Board and at least one sheet with domes.

18. Site 17, in which the circuit Board is flexible.

19. The node in claim 11, in which the switch includes a conductive contact element and the conductive dome covering the contact element.

20. Site 17, in which at least one light emitting device is mounted on the upper surface of the PCB with its light emitting surface facing the side surface of the waveguide.

21. Portable wireless communication terminal, comprising

a keyboard having at least one elastic layer and at least one button on the elastic layer, and

moreover, the elastic layer further comprises at least one push protrusion facing the waveguide,

a waveguide for transmission and direction of light, the waveguide is placed under elastic layer and has at least one reflective element d is I the reflection of light to the respective button, and

thus, the waveguide includes at least one set of optical fibers,

switching the substrate under a waveguide having at least one switch corresponding to the appropriate button and when the button is pressed, the portion of the waveguide is deformed in the direction of the switching substrate, activating the switch.

22. The terminal according to item 21, in which the switching substrate includes a circuit Board and at least one sheet located on the circuit Board.

23. The terminal according to item 21, in which the sets of optical fibers are located on the at least one switch.

24. The terminal according to item 21, in which the switching substrate contains many support tabs, allowing to fix the waveguide to the switching substrate.

25. The terminal according to item 21, in which the bottom surface of the waveguide formed reflective element.

26. The terminal according to item 21, in which the density of the at least one reflecting element are different in different positions at least one reflecting element for uniform illumination of a multitude of buttons.

27. The terminal according to item 21, in which the reflecting elements cause diffuse reflection of part of light transmitted in the waveguide.

28. The terminal according to article 22, in which the circuit Board is flexible.

29. The terminal according to item 21, in which the switch contain what it conductive contact element and the conductive dome, covering the contact element.

30. The terminal according to article 22, in which at least one light emitting device is mounted on the upper surface of the PCB with its light emitting surface facing the side surface of the waveguide.

31. Portable wireless communication terminal, comprising

a keyboard having at least one elastic layer and at least one button on the elastic layer, and

moreover, the elastic layer further comprises at least one push protrusion facing the waveguide,

moreover, the elastic layer further comprises at least one push tab

a waveguide for transmission and direction of light, the waveguide is placed under elastic layer and has at least one reflective element to reflect light to the respective button, and

moreover, the waveguide includes at least one light guide plate,

switching the substrate under a waveguide having at least one switch corresponding to the appropriate button and when the button is pressed, the portion of the waveguide is deformed in the direction of the switching substrate, activating the switch.

32. The terminal p, in which at least one light guide plate is made of polycarbonate resin or acrylic the malls.

33. The terminal p, in which the bottom surface of the waveguide formed reflective element.

34. The terminal p, in which at least one light guide plate is made flat.

35. The terminal p, in which the density of the at least one reflecting element are different in different positions at least one reflecting element for uniform illumination of a multitude of buttons.

36. The terminal p, in which the reflecting elements cause diffuse reflection of part of light transmitted in the waveguide.

37. The terminal p, in which the switching substrate includes a circuit Board and a sheet of domes.

38. The terminal according to clause 37, in which the circuit Board is flexible.

39. The terminal p, in which the switch includes a conductive contact element and the conductive dome covering the contact element.

40. The terminal according to clause 37, in which at least one light emitting device is mounted on the upper surface of the PCB with its light emitting surface facing the side surface of the waveguide.

41. Method of data entry containing phases in which

introducing light into a waveguide for transmission and direction of light through it, and the waveguide is placed under elastic layer of the keyboard;

diffuse reflect at least one reflecting cell battery (included) is that light, transmitted through the waveguide to the corresponding key on the keyboard, while the corresponding button is placed on the elastic layer of the keyboard; however, the elastic layer further comprises at least one push protrusion facing the waveguide,

transform by means of a switching substrate having multiple switches integrated with it, pressing the appropriate button into an electrical signal, and

while switching the substrate includes a circuit Board and at least one switch located on the circuit Board, and

moreover, when the button is pressed, the portion of the waveguide is deformed in the direction of the switching substrate, activating the switch, and

moreover, at least one light emitting device is mounted on the upper surface of the PCB with its light emitting surface facing the side surface of the waveguide.

42. The method according to paragraph 41, in which the waveguide includes at least one set of optical fibers.

43. The method according to 42, in which the set of optical fibers is located on the at least one switch.

44. The method according to paragraph 41, in which the switching substrate further comprises multiple supporting elements, allowing to fix the waveguide to the switching substrate.

45. The method according to paragraph 41, in which Volno the ar contains at least one plate of the light guide.

46. The method according to item 45, in which at least one light guide plate is made of polycarbonate resin or acrylic resin.

47. The method according to paragraph 41, in which the bottom surface of the waveguide formed reflective element.

48. The method according to item 45, in which at least one light guide plate is made flat.

49. The method according to paragraph 41, in which the density of the at least one reflecting element are different in many provisions reflecting element for uniform illumination of a multitude of buttons.

50. The method according to paragraph 41, in which the switching substrate includes a circuit Board and a sheet of domes.

51. The method according to item 50, in which the circuit Board is flexible.

52. The method according to paragraph 41, in which the switch includes a conductive contact element and the conductive dome covering the contact element.



 

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6 cl, 45 dwg

FIELD: computation engineering.

SUBSTANCE: device has control panel comprising table with a group of symbols in several fields and main board having pressure contacts and two selection members movable in parallel to rows and columns of the table until they find their places near in front of or above a pressure contact in the extension of selected row/column, pressure mechanism for varying pressure contact positions by means of selection members located in front of or below the latter, and several additional manually driven pressure contacts, their number being equal to field symbol maximum.

EFFECT: simplified and accelerated data selection.

11 cl, 9 dwg

FIELD: communications; interactive communication of electronic devices with a digital keyboard.

SUBSTANCE: the image on the display of an electronic device is divided into sections. Each section is associated with a certain key on the digital keyboard. Every section of the display represents visual information and visual indication of the chosen key on the digital keyboard. Every section is associated with a service and by choosing a key information associated with a service for this key is represented on the display.

EFFECT: visual intuitive interface and data access and control for a electronic device without a full keyboard is provided.

28 cl, 18 dwg

FIELD: ergonomics.

SUBSTANCE: keyboard is divided to two sections disposed correspondingly to anatomical peculiarities of arm's wrist. Keys are grouped according to purpose and character of application. Mutual disposition of keyboard modules in section corresponds to position of any finger of operator, which position the fingers take at natural relaxed state relatively each other. Keyboard modules in first group are disposed in parallel or radial at small angle to each other within limits of value of possible adjacent angles among elongated fingers. Keyboard modules of second group are disposed within range of movement of thumb. Several functions of keyboard are brought in coincidence.

EFFECT: improved comfort; higher speed of introduction of information; reduced sizes, reduced cost; elimination of physiological disorders caused by usage.

4 cl, 10 dwg, 2 tbl

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