TW201513155A - Keyboard with light emitting structure - Google Patents

Abstract

A keyboard with a light emitting structure comprises a plurality of keyboard units, a plurality of linking-up mechanisms and a command circuit board having light guide capability; the command circuit board includes an upper light guide plate, a lower light guide plate and a middle plate disposed between the upper light guide plate and the lower light guide plate; the upper light guide plate and the lower light guide plate facing to the one side of the middle plate have an upper triggering unit and a lower triggering unit for generating command signals when being trigger; the middle plate has a hollow region corresponding to each of the upper trigger units and each of the lower triggering units, a plurality of connection parts corresponding to each of the keyboard units, and through holes; the upper light guide plate has, at one side facing to the keyboard units, an upper shielding layer having a transparent region thereby to cause the command circuit board to receive the light source from a light emitting unit via the transparent region and become visible to the keyboard units.

Description

Keyboard with illuminated structure

The invention relates to a keyboard, in particular to a keyboard equipped with a light-emitting structure.

In order to meet the needs of different consumer markets, many manufacturers have introduced a luminous keyboard integrated with a light-emitting module to generate a luminous effect, in order to attract consumers' attention, and to increase the consumer's willingness to purchase. . Most of the light-emitting keyboard designs use a light-guide plate as a keyboard light-emitting module, such as US Pat. No. 6,217,183, US 6,467,924, US 6,918,677, US 7,172,303, US 7,193,535, US 7,172,303, US 7,283,066, US 6,860,612, etc. In addition to the development of keyboards with illuminating functions, some manufacturers are working on the development of structural designs that reduce the overall thickness of keyboard modules.

In order to improve the light guide plate as a light-emitting module, the overall keyboard thickness is lacking. For example, in the patents of the Republic of China patents 201320135, I345719, and I399776, the light-emitting module is directly applied by a circuit board having a light-guiding material, but in order to achieve The overall brightness is uniform, and usually a light guiding structure, such as a reflective bump, must be added. However, the reflective bump is provided so that the thickness of the illuminated keyboard is not substantially reduced. On the other hand, the illuminated keyboard generally sold in the industry, in addition to the above-mentioned light guiding structure, allows each button on the illuminated keyboard to be reliably pressed and reset, which usually includes a plurality of connecting members and a carrying The bottom plate of the connecting member, the bottom plate and the connecting member itself have a certain thickness, so that the thickness of the illuminated keyboard is limited by the bottom plate and the connecting member, and cannot be specifically thinned. .

The main object of the present invention is to overcome the problem that the thickness of a conventional illuminated keyboard cannot be reliably reduced.

In order to achieve the above object, the present invention provides a keyboard having a light-emitting structure, the keyboard comprising a plurality of keyboard portions, a plurality of interlocking mechanisms corresponding to each of the keyboard portions, a light-guiding command circuit board, and a light-emitting unit. The instruction circuit board includes an upper light guide plate, a lower light guide plate, and a middle plate disposed between the upper light guide plate and the lower light guide plate, wherein the upper light guide plate and the lower light guide plate respectively have a side facing the middle plate An upper triggering portion and a lower triggering portion triggered by the triggering of the command signal, the middle panel has a hollowed out area corresponding to each of the upper triggering portion and each of the lower triggering portions, and the plurality of keyboard portions are provided for the linkage The connecting portion of the mechanism and the plurality of through holes respectively corresponding to each of the connecting portions, the side of the upper light guide plate facing the keyboard portion has an upper shielding layer, and the upper shielding layer has a light transmission corresponding to each keyboard portion. region. The light emitting unit provides a light source to the command circuit board, so that the command circuit board receives the light source uniformly generated by the light emitting unit, and the light source is displayed on the keyboard portion.

In an embodiment, the lower light guide plate has a lower reflective layer opposite to the other side of the lower trigger portion.

In an embodiment, the lower light guide plate has a lower reflective layer on a side of the lower trigger portion.

In an embodiment, the upper light guide plate has an upper reflective layer disposed under the upper shielding layer.

In an embodiment, the upper light guide plate has an upper reflective layer on a side of the upper trigger portion.

In an embodiment, the lower light guide plate has a lower shielding layer disposed under the lower reflective layer.

In one embodiment, the upper surface of the middle plate facing the upper trigger portion and the lower trigger portion respectively has an upper insulating layer and a lower insulating layer, and the upper insulating layer and the lower insulating layer respectively have an upper surface corresponding to the hollow insulating layer. Uncovered area and the next uncovered area.

In one embodiment, the upper light guide plate includes a top portion and a side portion connected to the top portion, and the top portion and the side portion form a receiving space for receiving the lower light guide plate.

In one embodiment, the upper light guide plate has a plurality of assembled through holes corresponding to each of the connecting portions for the linking mechanism to be fixed and fixed to the middle plate.

The keyboard with the light-emitting structure of the invention has the following structure compared with the conventional keyboard structure:

1. The keyboard thickness is thin. The interlocking mechanism of the invention is directly mounted on the command circuit board, and the implementation of the keyboard structure of the conventional keyboard structure is omitted, so that the overall structure of the keyboard can save the thickness of the conventional bottom plate.

2. The luminous effect is remarkable. In the invention, the upper light guide plate and the lower light guide plate transmit light, and the upper shielding layer provided by the upper light guide plate limits the optical path to effectively utilize the light, so that the light only projects light to the keycap.

1‧‧‧ Keyboard Department

2‧‧‧ linkage agency

3‧‧‧Command Board

31‧‧‧Upper light guide

311‧‧‧Upper trigger

312‧‧‧Upper cover

313‧‧‧Lighting area

314‧‧‧Upper reflective layer

315‧‧‧ top

316‧‧‧ side

32‧‧‧ lower light guide

321‧‧‧ under the trigger

322‧‧‧lower reflective layer

323‧‧‧Under the cover layer

33‧‧‧ Medium board

331‧‧‧ hollow area

332‧‧‧Connecting Department

333‧‧‧Upper insulation

334‧‧‧lower insulation

335‧‧‧Uncovered areas

Uncovered area under 336‧‧

337‧‧‧through hole

4‧‧‧Lighting unit

5‧‧‧buffer support

1 is an exploded perspective view of a first embodiment of a keyboard with a light-emitting structure according to the present invention.

2 is a cross-sectional view showing the line A-A of FIG. 1 of the first embodiment of the keyboard with the light-emitting structure of the present invention.

3 is a partial cross-sectional view showing the line B-B of FIG. 1 of the first embodiment of the keyboard with the light-emitting structure of the present invention.

4 is a partial cross-sectional view showing the line B-B of FIG. 1 of the second embodiment of the keyboard with the light-emitting structure of the present invention.

Figure 5 is a partial cross-sectional view showing the line B-B of Figure 3 of the third embodiment of the keyboard with the light-emitting structure of the present invention.

Figure 6 is a partial cross-sectional view showing the line B-B of Figure 4 of the fourth embodiment of the keyboard with the light-emitting structure of the present invention.

Figure 7 is a partial cross-sectional view showing the line B-B of Figure 5 of the fifth embodiment of the keyboard with the light-emitting structure of the present invention.

Figure 8 is a side elevational view showing a sixth embodiment of the keyboard with the light-emitting structure of the present invention.

The detailed description and technical content of the present invention will now be described as follows:

Referring to FIG. 1 to FIG. 3, the keyboard with the light-emitting structure of the present invention comprises a plurality of keyboard portions 1, a plurality of interlocking mechanisms 2, a light-guiding command circuit board 3, and a light-emitting unit 4. Each of the keyboard portions 1 is respectively disposed corresponding to each of the linking mechanisms 2, and is disposed up and down with respect to the command circuit board 3 by each of the linking mechanisms 2, and the linking mechanism 2 may further be a scissor structure or other Common implementation structure in the market. The command circuit board 3 has an upper light guide plate 31, a lower light guide plate 32 and a middle plate 33. Further, the upper light guide plate 31 is disposed facing the keyboard portions 1, and the lower light guide plate 32 is disposed on the upper light guide plate 31. The intermediate plate 33 is disposed between the upper light guide plate 31 and the lower light guide plate 32. An upper trigger portion 311 and a lower trigger portion 321 are respectively disposed on a side of the upper light guide plate 31 and the lower light guide plate 32 facing the middle plate 33, and the middle plate 33 corresponds to each of the upper trigger portions 311 and each of the lower portions The triggering portion 321 has a hollowed out area 331, and the upper triggering portion 311 and the lower triggering portion 321 are correspondingly disposed. When the keyboard portion 1 presses the upper triggering portion 311, the upper triggering portion 311 passes through the upper triggering portion 311. The hollow area 331 is in contact with the lower triggering unit 321 to output an instruction signal. In addition, the middle plate 33 has a connecting portion 332 for the linkage mechanism 2, and the connecting portion 332 can be a hook or an assembly hole, etc. Further, the middle plate Each of the connecting portions 332 is provided with a through hole 337. The through hole 337 is formed by the intermediate plate 33 forming a hole formed by punching the intermediate plate 33 in advance. In addition, the keyboard of the present invention may have a buffer support body 5 that is deformed by the keyboard unit 1 in combination with the linkage mechanism 2, and the upper light guide plate 31 has a plurality of corresponding connection portions 332 provided for the linkage mechanism 2 The assembled through hole 332 is fixed to the intermediate plate 33. Furthermore, the light-emitting unit 4 of the present invention can be further disposed on both sides of the command circuit board 3 or in an accommodating space provided on the command circuit board 3 (not shown in the figure).

Further, the upper light guide plate 31 of the present invention has an upper shielding layer 312 facing the keyboard portion 1, and a light transmitting region 313 corresponding to the position of each of the keyboard portions 1, the upper shielding layer 312 is referred to. The ink may be disposed on the upper light guide plate 31 by physical or chemical coating, or may be formed by stacking an opaque sheet on the upper light guide plate 21. Thereby, the command circuit board 3 is uniformly guided by the light source from the light-emitting unit 4, and the light source is displayed on the keyboard unit 1 by the light-transmitting region 313. The so-called masking ink may further be a black ink or an equivalent opaque ink.

Referring to FIG. 3 to FIG. 6 , in addition to the upper shielding layer 31 disposed on the upper light guiding plate 31 , a reflective layer may be disposed on the other side of the lower light guiding plate 32 opposite to the lower triggering portion 321 . 322, and the lower reflective layer 322 faces the keyboard portion 1, so that the light source transmitted to the lower light guide plate 32 is reflected by the lower reflective layer 322 between the upper light guide plate 31 and the lower light guide plate 32. The lower reflective layer 322 may be disposed on the lower light guide plate 31 by physical or chemical coating, or may be disposed on the other side of the lower light guide plate 31 opposite to the lower trigger portion 321 by a reflective plate. The ink having the reflective effect may further be a white ink or an equivalent reflective ink. In addition to the above embodiment, the lower reflective layer 322 may also be disposed on the lower light guide plate 31 to have the lower trigger. One side of the portion 321 . Further, the upper light guide plate 31 of the present invention may further disposed an upper reflective layer 314 facing the upper trigger portion 311 under the upper shielding layer 312, and the upper reflective layer 314 is not limited to being disposed only on the upper light guide plate. The side having the upper shielding layer 312 may be further disposed on a side corresponding to the upper triggering portion 311. Alternatively, a shielding layer 323 is disposed under the lower reflective layer 322 of the lower light guide plate 32 such that a light source that is not affected by the lower reflective layer 322 is shielded by the lower shielding layer 323. Therefore, the upper shielding layer 312 or the upper reflective layer 314 may be disposed on the upper light guiding plate 31 according to the requirements of the implementation, or the lower reflective layer 322 or the lower shielding layer 323 may be disposed on the lower light guiding plate 32. The implementation of the reflective layer or the shielding layer limits the light source to be conducted only between the upper light guide plate 31 and the lower light guide plate 32.

Referring to FIG. 7 , the middle plate 33 of the present invention can be implemented as a transparent plate or a metal plate, so as to prevent the upper and lower triggering portions 311 and 321 from being erroneously actuated due to the material of the intermediate plate 33 . The upper plate 33 may further have an upper insulating layer 333 and a lower insulating layer 334 on a side corresponding to the upper triggering portion 311 and the lower triggering portion 321 , and the upper insulating layer 333 and the lower insulating layer 334 correspond to the hollowed out region. Each of the 331 has an upper uncovered area 335 and a lower uncovered area 336. The upper and lower uncovered areas 335 and 336 are arranged such that the upper triggering unit 311 and the lower triggering unit 321 can be activated and triggered. The upper and lower insulating layers 311 and 321 of the present invention may be formed by laying an insulating ink or an insulating plate on the intermediate plate 33, respectively.

Referring to FIG. 8 , in another embodiment, the upper light guide plate 31 of the present invention includes a top portion 315 and a side portion 316 , and the top portion 316 and the side portion 316 can be bent by the upper light guide plate 31 to form a right angle. An accommodating space is formed between the top portion 315 and the side portion 316. The accommodating space can accommodate the middle plate 33 and the lower light guide plate 32. The side portion 316 can be formed on a single side or both sides of the top portion 315, whereby the upper shielding layer 312 of the side portion 315 can be used to limit the light scattered on the side of the lower light guide plate 32 to avoid light. Lost.

In summary, the keyboard with the light-emitting structure of the present invention includes a plurality of keyboard portions, a plurality of interlocking mechanisms, and a command circuit board having light guiding properties. The command circuit board includes an upper light guide plate, a lower light guide plate, and a The upper plate between the upper light guide plate and the lower light guide plate, the upper light guide plate and the side of the lower light guide plate facing the middle plate respectively have an upper trigger portion and a lower trigger portion triggered by the command signal, wherein the middle trigger plate and the lower trigger portion respectively The board has a hollow area corresponding to each of the upper triggering portion and each of the lower triggering portions, and a plurality of connecting portions corresponding to each of the keyboard portions for the linkage mechanism and a plurality of corresponding portions of the connecting portion are respectively provided for each of the keyboard portions. a through hole, the upper side of the upper light guide plate facing the keyboard portion has an upper shielding layer including a light transmitting region, so that the light source received by the command circuit board from a light emitting unit is visible through the light transmitting region Keyboard section. Thereby, the overall thickness of the keyboard can be made thinner.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Variations and modifications are still within the scope of the patents of the present invention.

Domestic registration information [please note according to the registration authority, date, number order]

Foreign deposit information [please note according to the country, organization, date, number order]

1‧‧‧ Keyboard Department

2‧‧‧ linkage agency

31‧‧‧Upper light guide

313‧‧‧Lighting area

32‧‧‧ lower light guide

321‧‧‧ under the trigger

33‧‧‧ Medium board

331‧‧‧ hollow area

332‧‧‧Connecting Department

337‧‧‧through hole

5‧‧‧buffer support

Claims (9)

A keyboard with a light emitting structure, comprising:
a plurality of keyboard portions and a plurality of interlocking mechanisms corresponding to each of the keyboard portions;
a light guiding instruction circuit board comprising an upper light guide plate, a lower light guide plate and a middle plate disposed between the upper light guide plate and the lower light guide plate, wherein the upper light guide plate and the lower light guide plate face the middle One side of the board has an upper triggering portion and a lower triggering portion respectively triggered by the triggering generating command signal, and the middle panel has a hollowed out area corresponding to each of the upper triggering portion and each of the lower triggering portions, the plurality corresponding to each The keyboard portion is provided with a connecting portion for the linkage mechanism and a plurality of through holes respectively corresponding to each of the connecting portions, and an upper shielding layer facing the keyboard portion has an upper shielding layer, and the upper shielding layer corresponds to each The keyboard portion has a light-transmissive area; and a light-emitting unit provides a light source to the command circuit board, so that the command circuit board receives the light source uniformly generated by the light-emitting unit, and the light-emitting area display light source is visible to the keyboard portion. The keyboard with a light-emitting structure according to Item 1, wherein the lower light guide plate has a lower reflective layer on the other side of the lower trigger portion. The keyboard with a light-emitting structure according to Item 1, wherein the lower light guide plate has a lower reflective layer on a side opposite to the lower trigger portion. The keyboard with a light-emitting structure according to the item 1, 2 or 3, wherein the upper light guide plate has an upper reflective layer disposed under the upper shielding layer. The keyboard with a light-emitting structure according to Item 1, 2 or 3, wherein the upper light guide plate has an upper reflective layer on a side opposite to the upper trigger portion. The keyboard with a light-emitting structure according to claim 2, wherein the lower light guide plate has a lower shielding layer disposed under the lower reflective layer. The keyboard of the light-emitting structure of claim 1, wherein the side of the middle plate facing the upper trigger portion and the lower trigger portion respectively has an upper insulating layer and a lower insulating layer, the upper insulating layer The layer and the lower insulating layer respectively have an upper uncovered area and a lower uncovered area corresponding to the hollowed out area. The keyboard of the light-emitting structure of claim 1, wherein the upper light guide plate has a top portion and a side portion connected to the top portion, and the top portion and the side portion form a housing for receiving the lower light guide plate. space. The keyboard with a light-emitting structure according to claim 1, wherein the upper light guide plate has a plurality of assembled through holes corresponding to each of the connecting portions for the linking mechanism to be fixed and fixed to the middle plate.