CN202650919U - Light-collecting luminous keyboard - Google Patents

Abstract

The utility model provides a light-collecting luminous keyboard, which comprises a keyboard part and at least one luminous part. The keyboard part comprises a plurality of pressing pieces which are pressed by force and move along the pressing direction, a plurality of elastic supporting pieces which are respectively arranged corresponding to the pressing pieces and enable the pressing pieces to move back and forth along the pressing direction, and a circuit board which is triggered by the pressing pieces pressing the elastic supporting pieces to generate corresponding command signals, wherein the circuit board comprises a light reflecting area at least corresponding to the position of each elastic supporting piece. The light-emitting part is arranged in a light-guiding area between the pressing piece and the circuit board and generates light, and the light transmitted in the light-guiding area is reflected by the light-reflecting area of the circuit board, passes through the elastic supporting piece and is guided into the pressing piece, so that the pressing piece has high-brightness light-emitting performance.

Description

Concentrated light-emitting keyboard

technical field

The utility model relates to a light-emitting keyboard, in particular to a light-collecting type light-emitting keyboard.

Background technique

Computer devices have been widely used by the public for professional data processing or daily life, and may include desktop computers, laptop computers, notebook computers, and Internet TVs. Users often use the keyboard device to input data or instructions to the computer device. Since the use environment and time are quite diverse, the keyboard device has been developed with a variety of designs for different needs of users. For example, in order to enable the user to clearly see the symbols on the keyboard in a low-light or dark environment and accurately tap the keyboard, there are many keyboard devices with light-emitting functions, such as US6,284,988, US6,322,229, US6 ,199,996, US6,554,442, US6,179,432, and US6,987,466 patent cases all mention a kind of use of a built-in light-emitting sheet to emit light to the outside, so that the keyboard has the ability to emit light.

However, most of the aforementioned patent technical documents make keycaps, elastic bodies, and interlocking mechanisms with light-transmitting materials. When the light-emitting elements emit light from the whole piece, the keyboard presents a uniform backlight. Because the environment where the user operates the luminous keyboard is mostly a place with insufficient light and relatively dark places, such as low-luminance environments such as airplanes and cars, but the entire keyboard emits light evenly, which will cause the overall brightness to be too strong and affect other people around. In this low-brightness environment, the user's ability to see the keyboard is greatly reduced. If the entire panel is evenly lit, it will be difficult for the user to identify each keycap. The interference effect of the light source emitted between adjacent keycaps will cause recognition Not easy, for those who are not familiar with the characters and symbols of the keycaps that cannot be remembered, they will often produce knocking errors and output wrong command signals.

In order to provide light sources for individual keycaps, patents such as U.S. No. US7,628,500, US7,588,338, and US7,154,059 and U.S. Patent No. US20110168538 have also been developed to improve the brightness of keycaps. In the dark or in an environment with insufficient light, the position of each keycap can still be easily identified, and the command signal can be input accurately. Although the above luminous keyboard structure can provide light sources for individual keycaps, all the light entering a single key unit cannot be emitted in the direction of the keycap, and part of the light may still be transmitted in the direction of the circuit board or the carrier board, resulting in uneven reflection Or scattering, causing a halo around the keycaps, reducing the luminous brightness of individual keycaps.

Utility model content

The main purpose of this utility model is to overcome the problem that although individual keycap light sources are provided in the keyboard device, halos appear around the keycaps due to reflection and scattering of part of the light sources, and even reduce the luminous brightness of individual keycaps.

To achieve the above purpose, the utility model provides a light-collecting light-emitting keyboard, which includes a keyboard part and at least one light-emitting part. The keyboard part includes a plurality of pressing parts pressed by force and displaced according to the pressing direction, a plurality of elastic supporting parts respectively arranged opposite to the pressing parts to make the pressing parts move back and forth along the pressing direction, and a pressing part pressed by the pressing parts. The elastic supporting element triggers a circuit board that generates a corresponding instruction signal, and the circuit board includes a reflective area at least corresponding to the position of the individual elastic supporting element. The light-emitting part is arranged in the light guide area between the pressing member and the circuit board and generates light, and the light transmitted in the light guide area is reflected by the light-reflecting area of the circuit board, passes through the elastic support member and guides into the pressing parts, so that the pressing part has a high-brightness luminous performance.

In one embodiment, the reflective area completely covers the surface of the circuit board.

In one embodiment, the circuit board includes a first line electrode layer, a second line electrode layer and an insulating spacer layer disposed between the first line electrode layer and the second line electrode layer. The reflective area is disposed on the first line electrode layer, the insulating spacer layer or the second line electrode layer.

In one embodiment, the elastic supporting member includes a compression deformation part and a load bearing part ringed around the compression deformation part to support the compression deformation part.

In one embodiment, the light-emitting portion includes an opaque region and at least one transparent region below the opaque region. The light-transmitting area of the light-emitting part is disposed at a position opposite to the elastic supporting member.

In one embodiment, the light-emitting part includes a light-guiding element and a pair of illuminating elements for providing a light source to the light-guiding element. The illuminating element is an electroluminescence unit or a light emitting diode.

In one embodiment, the elastic supporting member is a transparent material.

In an embodiment of the present invention, a substrate supporting the keyboard part is also included. The keyboard part includes a plurality of interlocking mechanisms respectively connected to the pressing part and the base plate. The interlocking mechanism is made of light-transmitting material.

In one embodiment, the light emitting part is a column light emitter.

The features of the light-collecting light-emitting keyboard of the utility model are:

A plurality of reflective areas are provided on the circuit board at least relative to the positions of individual elastic supports, so that the light incident on the elastic support but not transmitted towards the pressing member can be reflected to the pressing member through the reflective areas, thereby enhancing The luminous brightness of the pusher.

Description of drawings

Fig. 1 is an exploded schematic diagram of a part of the keyboard structure of an embodiment of the light-collecting light-emitting keyboard of the present invention

Fig. 2 is an exploded schematic view of the overall keyboard structure of an embodiment of the light-collecting light-emitting keyboard of the present invention

Fig. 3 is a structural cross-sectional schematic diagram of an embodiment of the light-collecting light-emitting keyboard of the present invention

Figure 4 is a schematic cross-sectional view of the overall keyboard structure of another embodiment of the light-collecting light-emitting keyboard of the present invention

Detailed ways

Relevant detailed description and technical content of the utility model, now just explain as follows with respect to coordinating drawing:

Please refer to Fig. 1, Fig. 2 and Fig. 3, which are partial keyboard structural decomposition schematic diagrams, overall keyboard structural decomposition schematic diagrams and structural cross-sectional schematic diagrams of an embodiment of the utility model, as shown in the figure: the utility model discloses a light-collecting The type luminous keyboard mainly includes a keyboard part 10 , at least one light emitting part 20 and a substrate 30 supporting the keyboard part 10 and the light emitting part 20 . The keyboard part 10 includes a plurality of pressing parts 11 which are pressed by force and are displaced according to the pressing direction, and a plurality of interlocking mechanisms 12 respectively connected to the pressing parts 11 and the substrate 30, and a plurality of pressing parts 11 are arranged respectively. In the linkage mechanism 12, an elastic supporting member 13 is used to move the pressing member 11 back along the pressing direction, and a circuit board 14 is triggered to generate a corresponding command signal when the pressing member 11 presses the elastic supporting member 13 . The elastic supporting member 13 includes a pressure deformation portion 131 and a bearing portion 132 ring-shaped around the pressure deformation portion 131 to bear the pressure deformation portion 131 . In this embodiment, the linkage mechanism 12 and the elastic supporting member 13 are made of light-transmitting materials.

The circuit board 14 includes a plurality of reflective regions 141 that are at least opposite to individual elastic support members 13 . In this embodiment, the circuit board 14 is a flexible plastic film switch, including a first line electrode layer 142, a second line electrode layer 143 and a line electrode layer 142 and the second line electrode layer. An insulating spacer layer 144 between the line electrode layers 143 . The first line electrode layer 142 and the second line electrode layer 143 are separated by the insulating spacer layer 144 and do not contact each other when they are not under pressure normally. The deformation presses the first line electrode layer 142 to be in contact with the second line electrode layer 143 , and a corresponding instruction signal is generated. The reflective area 141 can be disposed on the first line electrode layer 142 , the second line electrode layer 143 or the insulating spacer layer 144 according to user's design.

In the present invention, the light-emitting portion 20 is disposed in the light-guiding section R between the pressing member 11 and the circuit board 14 and generates light. In this embodiment, the light-emitting part 20 is a columnar illuminant, and the cross-section of the columnar illuminant can be circular, square, triangular, etc. The light emitting portion 20 includes an opaque region 21 and at least one transparent region 22 below the opaque region 21 . In order to provide light for individual pressing parts 11, the light-transmitting area 22 of the light-emitting part 20 is arranged at a position opposite to the elastic support 13, so that the light in the light-emitting part 20 is transmitted in the opaque area 21 and only in the light-transmitting area 21. The light-transmitting area 22 outputs to the corresponding elastic supporting member 13 . The light emitting part 20 can be a self-illuminating device, or as in this embodiment, a device composed of a light guide element 23 and a pair of illumination elements 24 that provide a light source for the light guide element 23, wherein the illumination element 24 can be An electroluminescence unit or a light emitting diode. The light generated by the light emitting part 20 is transmitted to the transparent elastic support member 13 in the light guide region R, a part of which can directly penetrate the elastic support member 13 to reach the pressing member 11, and the other part can pass through the elastic support member 13 The reflective area 141 of the opposite circuit board 14 reflects and passes through the elastic supporting member 13 to guide the pressing member 11 , so that the pressing member 11 has a relatively concentrated brightness performance.

Except that the reflective area 141 is only arranged on the circuit board 14 relative to the position of the individual elastic support member 13, please refer to FIG. It can completely cover the surface of the circuit board 14. In this way, the light generated by the light-emitting part 20 and transmitted in the light guide area R will not pass through the circuit board 14 to make the bottom of the whole keyboard evenly backlit. The transmission of the circuit board 14 relative to the side of the keyboard portion 10 is then reflected back to the corresponding elastic supporting member 13 to enhance the brightness performance of the pressing member 11 above the elastic supporting member 13 .

To sum up, the light-collecting light-emitting keyboard of the present invention utilizes a plurality of reflective areas on the circuit board that are at least opposite to the positions of individual elastic supports, so that the light that enters the elastic supports, except for a part, directly faces the direction of the pressing member. The other part can be reflected to the pressing part through the reflective area, so as to enhance the luminous brightness of the pressing part, so that the light generated by the light emitting part can be efficiently transmitted to each pressing part.

The utility model has been described in detail above, but what is described above is only a preferred embodiment of the utility model, and should not limit the implementation scope of the utility model. That is, all equivalent changes and modifications made according to the scope of application of the utility model should still fall within the scope of the patent of the utility model.

Claims (17)

1. a light harvesting formula illuminated keyboard is characterized in that, described light harvesting formula illuminated keyboard includes:

One keypad portion, include a plurality of stressed described pressing pieces of pressing the direction displacement of pressing and comply with, relatively described pressing piece and dispose and make described pressing piece along described a plurality of elastic supporting member for supporting optical member of pressing the direction shift reciprocately respectively, and one be subjected to described pressing piece to press described elastic supporting member for supporting optical member and the circuit board of triggering for generating command adapted thereto signal, and described circuit board includes the retroreflective regions of corresponding at least indivedual described elastic supporting member for supporting optical member position; And

At least one illuminating part, in being arranged between the light guide zone between described pressing piece and the described circuit board and produce light, the light of conduction reflects through described elastic supporting member for supporting optical member and imports described pressing piece through the retroreflective regions of described circuit board between described light guide zone, makes described pressing piece possess the luminous performance of higher brightness.

2. light harvesting formula illuminated keyboard according to claim 1 is characterized in that described retroreflective regions is covered in the surface of described circuit board fully.

3. light harvesting formula illuminated keyboard according to claim 1, it is characterized in that, described circuit board includes one first transmission line electrode layer, and one second transmission line electrode layer and is arranged at the dielectric spacer layer between described the first transmission line electrode layer and described the second transmission line electrode layer.

4. light harvesting formula illuminated keyboard according to claim 3 is characterized in that, described retroreflective regions is arranged at described the first transmission line electrode layer.

5. light harvesting formula illuminated keyboard according to claim 3 is characterized in that described retroreflective regions is arranged at described dielectric spacer layer.

6. light harvesting formula illuminated keyboard according to claim 3 is characterized in that, described retroreflective regions is arranged at described the second transmission line electrode layer.

7. light harvesting formula illuminated keyboard according to claim 1 is characterized in that, described elastic supporting member for supporting optical member include a pressurized deformations and be located on described pressurized deformations around to carry the supporting part of described pressurized deformations.

8. light harvesting formula illuminated keyboard according to claim 1 is characterized in that, described illuminating part includes a light tight zone and at least one transmission region that is positioned at below, described light tight zone.

9. described light harvesting formula illuminated keyboard according to claim 8 is characterized in that the transmission region of described illuminating part is arranged at the position relative with described elastic supporting member for supporting optical member.

10. light harvesting formula illuminated keyboard according to claim 1 is characterized in that, described illuminating part includes the illumination element that a light-guide device and a pair of described light-guide device provide light source.

11. light harvesting formula illuminated keyboard according to claim 10 is characterized in that, described illumination element is an electroluminescence unit.

12. light harvesting formula illuminated keyboard according to claim 10 is characterized in that described illumination element is a light-emitting diode.

13. light harvesting formula illuminated keyboard according to claim 1 is characterized in that described elastic supporting member for supporting optical member is light transmissive material.

14. light harvesting formula illuminated keyboard according to claim 1 is characterized in that, described light harvesting formula illuminated keyboard also includes the substrate that supports described keypad portion.

15. light harvesting formula illuminated keyboard according to claim 14 is characterized in that, described keypad portion includes a plurality of interlinked mechanisms of establishing described pressing piece and described substrate that connect respectively.

16. light harvesting formula illuminated keyboard according to claim 15 is characterized in that described interlinked mechanism is light transmissive material.

17. described light harvesting formula illuminated keyboard is characterized in that according to claim 1, described illuminating part is a column luminous element.

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