CN203192658U - Luminous keyboard - Google Patents
Luminous keyboard Download PDFInfo
- Publication number
- CN203192658U CN203192658U CN 201320143861 CN201320143861U CN203192658U CN 203192658 U CN203192658 U CN 203192658U CN 201320143861 CN201320143861 CN 201320143861 CN 201320143861 U CN201320143861 U CN 201320143861U CN 203192658 U CN203192658 U CN 203192658U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- electrode
- light guide
- slotted eye
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000027455 binding Effects 0.000 description 2
- 238000009739 binding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Landscapes
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
A light-emitting keyboard, comprising: a light guide plate including a bottom surface and a light emergent surface, the bottom surface being opposite to the light emergent surface; a thin film circuit board arranged on the light guide plate, wherein the thin film circuit board is made of a high-conductivity material and printed on the surface of a first substrate; the pressure sensing element is arranged on the film circuit board, and is made of piezoresistive material printed on the surface of a second base material, and the piezoresistive material is provided with at least one slotted hole; a keycap arranged on the pressure sensing element; the groove hole of the piezoresistive material at least corresponds to a part of the area of the surface of the first base material, which is not coated with the high conductive material, so that the light emitted by the light guide plate can penetrate through the groove hole of the pressure sensing element to reach the surface of the keycap, and the keycap can emit light.
Description
Technical field
The utility model is about a kind of illuminated keyboard, in specific words, particularly directly be located at the keycap below relevant for a kind of pressure responsive element, and pressure responsive element has the illuminated keyboard of slotted eye.
Background technology
Button is used in the past widely at input unit, and the large-sized processing equipment that uses of the consumer level electronic product that contacts of daily life or industrial quarters all need be provided with press-key structure as input unit, to operate above-mentioned electronic product and process equipment such as.Be the trend in response to the electronic product slimming, button more has the demand of slimming in design.
In order to satisfy the demand of portable computer, the research and development of light and thin type illuminated keyboard are imperative.For pursuing the correctness of frivolous ultimate attainment and signal output, part keyboard working pressure sensing element is as trigger switch, but because pressure responsive element is light tight sheet material and is covered with the button below, can be luminous for making keytop, light guide plate must be arranged at the top of pressure responsive element.See also Figure 1A, Figure 1B and Fig. 1 C, its show respectively existing illuminated keyboard top exploded view, look up exploded view and side-looking constitutional diagram.Existing illuminated keyboard 10 from top to bottom is respectively keycap 1, light guide plate 2, pressure responsive element 3, film circuit board 4 and base plate 5.Keycap 1 is light-permeable in the part of font, and remainder is light tight; Light source is provided light guide plate 2 so that keycap 1 is luminous; Pressure responsive element 3 comprises one first base material 31 and a pressure drag material 32, and this pressure drag material 32 is printed in the lower surface of this first base material 31, and the application of force size that this pressure drag material 32 can corresponding user is to change resistance; Film circuit board 4 comprises a high conductive material 41 and one second base material 42, and this high conductive material 41 is printed in the upper surface of this second base material 42, and this high conductive material can be the silver slurry; Film circuit board 4 produces the information of different numerical value according to the state with pressure responsive element 3 bindings; Base plate 5 is supporting construction.
In the existing illuminated keyboard 20 of another kind, the external form of keycap 11 may adopt whole plane, and shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, it shows that respectively another kind has the top exploded view of illuminated keyboard now, looks up exploded view and side-looking constitutional diagram.Unique different of existing illuminated keyboard 20 and existing illuminated keyboard 10 be in: keycap 11 is a smooth sheet, and keycap 1 is not to be smooth sheet, element as for other is then identical, and this structural advantages is for reducing integral thickness, and above-mentioned two kinds of keycaps 1,11 are applied to respectively on the different keyboards.When the user forced in keycap 1 or 11, the strength that finger is down pressed just can be disperseed by light guide plate 2 or 12, and causes the sensitivity of button to descend; And in the design of ultra-thin keyboard, the user can only lean on the printing type face of keycap 11 upper surfaces to judge key position, and as user during in typewriting, finger might not have to beat directly over letter because of skew, causes keyboard generation misoperation this moment.For example: when the user presses on the keycap 11 the A letter, if the finger deflection is more right-hand, because of the light guide plate 12 of keycap 11 belows the strength that finger presses down is disperseed, this moment, computer screen might show " AB " two letters simultaneously, so existing illuminated keyboard 20 still has disappearance and haves much room for improvement.
The utility model content
Therefore, need a kind of illuminated keyboard that can overcome the problems referred to above of development, the utility model has preferable sensitivity compared to existing illuminated keyboard, even there is the part skew in the finger presses zone, also can be because strength can directly be communicated to pressure responsive element, so the erroneous judgement probability declines to a great extent.Moreover, because pressure responsive element changes into from whole piece material of the prior art and has slotted eye or hole, and this structure can be saved the material of pressure responsive element, and the light that the light guide plate below it is emitted is penetrable to keytop, to reach the luminous effect of keyboard.
The utility model provides a kind of illuminated keyboard, comprises a base plate; One light guide plate is located on this base plate, has a side, a bottom surface and an exiting surface, and intersect this side and this bottom surface, and this bottom surface is relative with this exiting surface; One film circuit board is located on this light guide plate, and this film circuit board is that a high conductive material is printed in one first substrate surface; One pressure responsive element is located on this film circuit board, and this pressure responsive element is that a pressure drag material is printed in one second substrate surface, and this pressure drag material has at least one slotted eye; One keycap is located on this pressure responsive element; Wherein, the slotted eye of this pressure responsive element is the uncoated zone that this high conductive material is arranged of this first substrate surface of counterpart at least, make the emission of this light guide plate penetrable this pressure responsive element of light slotted eye and arrive this key cap surface so that this keycap is luminous.
Preferably, be provided with a light source in a side of this light guide plate, this light source projects light is to the side of this light guide plate, and this light is penetrated by the exiting surface of this light guide plate again.
Preferably, between this base plate and this light guide plate, be provided with a reflector, the light that emits in order to the bottom surface of reflecting this light guide plate.
Preferably, the high conductive material of this film circuit board is the silver slurry.
Preferably, the high conductive material on this first substrate surface comprises one first electrode and one second electrode of finger, and this first electrode and one second electrode have and be separated from each other with gap and be crisscross arranged in this first substrate surface.
Preferably, the slotted eye of this pressure drag material is square slotted eye, and it has long limit and minor face, and when this pressure responsive element was disposed on this film circuit board, the long limit of the slotted eye of this pressure drag material was parallel with the bearing of trend of this first electrode and the second electrode finger.
Preferably, the slotted eye of this pressure drag material is square slotted eye, and it has long limit and minor face, and when this pressure responsive element was disposed on this film circuit board, the long limit of the slotted eye of this pressure drag material was vertical with the bearing of trend of this first electrode and the second electrode finger.
The advantage of the utility model illuminated keyboard is: have preferable sensitivity.Even there is the part skew position of finger presses on keycap, also can be because no light guide plate scatters one's forces, so the erroneous judgement probability declines to a great extent; Pressure responsive element has at least one slotted eye or hole, and its pattern can change according to application demand, this kind has the structure of slotted eye or hole can save material to reduce cost, and the light that emits of light guide plate that makes its below can pass this slotted eye or hole and arrive keytop, makes keyboard luminous.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute restriction of the present utility model.In the accompanying drawings:
Figure 1A shows the top exploded view of existing illuminated keyboard.
Figure 1B shows the exploded view of looking up of existing illuminated keyboard.
Fig. 1 C shows the side-looking constitutional diagram of existing illuminated keyboard.
Fig. 2 A shows the top exploded view of another existing illuminated keyboard.
Fig. 2 B shows the exploded view of looking up of another existing illuminated keyboard.
Fig. 2 C shows the side-looking constitutional diagram of another existing illuminated keyboard.
Fig. 3 A shows the top exploded view of the utility model illuminated keyboard.
Fig. 3 B shows the exploded view of looking up of the utility model illuminated keyboard.
Fig. 3 C shows the side-looking constitutional diagram of the utility model illuminated keyboard.
Fig. 3 D shows the exploded view of pressure drag material and film circuit board.
Fig. 3 E shows the constitutional diagram of pressure drag material and film circuit board.
Fig. 3 F shows the exploded view of another embodiment of pressure drag material and film circuit board.
Fig. 3 G shows the constitutional diagram of another embodiment of pressure drag material and film circuit board.
Fig. 4 A is the circuit diagram that button is judged.
Fig. 4 B is the impedance variation figure during to the different application of force of button.
The drawing reference numeral explanation:
1,11 keycaps
2,12 light guide plate
3,13 pressure responsive element
4,14 film circuit boards
5,15 base plates
10,20 illuminated keyboards
31,131 first base materials
32,132 pressure drag materials
41,141 high conductive materials
42,142 second base materials
21 base plates
22 light guide plate
23 film circuit boards
24 pressure responsive element
25 keycaps
30 illuminated keyboards
40 microcontrollers
50 first electrodes
60 second electrodes
70 equivalent variable resistance
221 sides
222 bottom surfaces
223 exiting surfaces
231 high conductive materials
232 first base materials
233 zones
241 pressure drag materials
242 second base materials
243 slotted eyes
Embodiment
Though the utility model will be consulted and contain the appended graphic of the utility model preferred embodiment and fully describe, before describing, this should be appreciated that those skilled in the art can revise utility model described herein, obtain effect of the present utility model simultaneously.Therefore, must understand above description is an announcement widely to those skilled in the art, and its content does not lie in restriction the utility model.
See also Fig. 3 A, Fig. 3 B and Fig. 3 C, its show respectively the utility model illuminated keyboard top exploded view, look up exploded view and side-looking constitutional diagram.The utility model illuminated keyboard 30 comprises: a base plate 21 is a supporting construction; One light guide plate 22, be located on this base plate 21, this light guide plate 22 has a side 221, a bottom surface 222 and an exiting surface 223, this side 221 is a side of this light guide plate 22, this exiting surface 223 is the end face of this light guide plate 22, intersect with this bottom surface 222 this side 221, and this bottom surface 222 is relative with this exiting surface 223; One film circuit board 23 is located on this light guide plate 22, and this film circuit board 23 is that a high conductive material 231 is printed on one first base material (as: plastic film), 232 surfaces; One pressure responsive element 24 is located on this film circuit board 23, and this pressure responsive element 24 is that a pressure drag material 241 is printed in one second base material (as: plastic film), 242 surfaces down, and this pressure drag material 241 has a plurality of square slotted eyes 243; One keycap 25 is located on this pressure responsive element 24.
See also Fig. 3 D and Fig. 3 E, it shows exploded view and the constitutional diagram of pressure drag material and film circuit board respectively.For asking graphic clear with convenient explanation, so in Fig. 3 D and Fig. 3 E, omitted this second base material 242.This high conductive material 231 is printed on these first base material, 232 surfaces, two of the printed pattern formation of this high conductive material 231 do not contact the electrode of (or connection): first electrode 50 and second electrode 60, and this first electrode 50 and this second electrode 60 are finger, and be separated from each other with gap and be crisscross arranged in this first substrate surface 232 to have, this pressure drag material 241 is this first electrode 50 of linking portion and this second electrode 60 at least.In this embodiment, the long limit of the square slotted eye 243 of this pressure drag material 241 is parallel with the bearing of trend of this first electrode 50 and second electrode, 60 fingers, and this slotted eye 243 uncoated zones 233 that this high conductive material 231 is arranged, this first base material of counterpart 232 surfaces at least.In the middle of present embodiment, this slotted eye 243 fully to should first electrode 50 and second electrode, 60 fingers between the uncoated zone 233 that this high conductive material 231 is arranged, therefore shown preferable light transmission efficiency.
See also Fig. 3 F and Fig. 3 G, it shows exploded view and the constitutional diagram of another embodiment of pressure drag material and film circuit board respectively.For asking graphic clear with convenient explanation, so in Fig. 3 F and Fig. 3 G, omitted this second base material 242.In this embodiment, this pressure drag material 241 remains and is disposed on this film circuit board 23, the long limit of the square slotted eye 243 of this pressure drag material 241 is vertical with the bearing of trend of this first electrode 50 and second electrode, 60 fingers, and this slotted eye 243 uncoated zones 233 that this high conductive material 231 is arranged, this first base material of counterpart 232 surfaces at least.In the middle of present embodiment, because the set-up mode of this square slotted eye 243, allow this pressure drag material 241 be able to vertically repeatedly place between this one first electrode 50 and one second electrode, 60 fingers, therefore make this first electrode 50 and second electrode 60 be able to obtain larger area by this pressure drag material 241 and link that this configuration mode does not have the contraposition problem aspect assembling.
The utility model illuminated keyboard 30 is provided with a light source (not shown) in a side of this light guide plate 22, this light source projects light is to the side 221 of this light guide plate 22, this light is upwards penetrated by the exiting surface 223 of this light guide plate 22 again, and pass through this film circuit board 23 and this pressure responsive element 24 in regular turn, wherein because this pressure responsive element 24 has slotted eye 243, and this slotted eye 243 be to should first the uncoated relations that the zone 233 of this high conductive material 231 is arranged in base material 232 surfaces, so light can successively penetrate this uncoated zone 233 and this slotted eye 243 that this high conductive material 231 is arranged in first base material, 232 surfaces, and arrive this keycap 25 surfaces, so that this keyboard can be luminous, thus, the user just can be clear that the font on this keycap 25.Preferably, the utility model has additional a reflector (not shown) between this base plate 21 and this light guide plate 22, this reflector can be used for reflecting the light that 222 loss in bottom surface of this light guide plate 22 are come out, and makes light upwards projection once again, to strengthen the luminosity of this illuminated keyboard 30.Configured light sources according to the facts border demand is adjusted, and can be arranged at bottom surface 222 or this light guide plate 22 inside of this light guide plate 22, and the scope of the utility model configuration is not subject to the limits.
See also Fig. 4 A and Fig. 4 B, and cooperate and to consult Fig. 3 A, Fig. 4 A is the circuit diagram that button is judged, the impedance variation figure of the pressure responsive element when Fig. 4 B is the different application of force.Each button on the keyboard all can be done with last other I/O of a microcontroller and be connected, and namely first electrode 50 of film circuit board 23 and second electrode 60 and a microcontroller 40 last other I/O do binding.When button is pressed, pressure responsive element 24 is under different application of force states, the power that its equivalent variable resistance 70 is pressed corresponding button and present different resistance values, because this equivalence variable resistor 70 links first electrode 50 and second electrode 60, can know the resistance value of this equivalence variable resistor 70 by inference by the change in voltage that detects 60 at first electrode 50 and second electrode, also can learn whether button is pressed.When 40 pairs of buttons of this microcontroller were done to detect, this microcontroller 40 can be down to 0V with the I/O that this second electrode 60 links, and reads the I/O magnitude of voltage V that links with this first electrode 50
1, wherein if V
1Be lower than set point V
2The time, this microcontroller 40 can judge that just button is depressed; If V
2When set point is 1.5V, surpass 50 g when this pressure responsive element 24 is stressed, according to the dividing potential drop theorem, this moment V
1Numerical value will be lower than 1.5V, namely represent button and be depressed.
What deserves to be mentioned is, the slotted eye 243 of pressure drag material 241 of the present utility model is not limited to the drawn square slotted eye of Fig. 3 B, can also be other geometric holes, this pattern can be according to application demand or in order to cooperate the printed patterns on this film circuit board 23 to change, the light penetration mistake that emits in order to this light guide plate 22.
The advantage of the utility model illuminated keyboard is:
1, has preferable sensitivity.Even there is the part skew position of finger presses on keycap, also can be because no light guide plate scatters one's forces, so the erroneous judgement probability declines to a great extent.
2, pressure responsive element has at least one slotted eye or hole, and its pattern can change according to application demand, this kind has the structure of slotted eye or hole can save material to reduce cost, and the light that emits of light guide plate that makes its below can pass this slotted eye or hole and arrive keytop, makes keyboard luminous.
After describing preferred embodiment of the present utility model in detail, those skilled in the art can clearly understand, can carry out various variations and change not breaking away under following claim and the spirit, and the utility model also is not subject to the execution mode of illustrated embodiment in the specification.
Claims (7)
1. an illuminated keyboard is characterized in that, comprises:
One light guide plate comprises a bottom surface and an exiting surface, and described bottom surface is relative with described exiting surface;
One film circuit board is located on the described light guide plate, and described film circuit board is that a high conductive material is printed in one first substrate surface;
One pressure responsive element is located on the described film circuit board, and described pressure responsive element is that a pressure drag material is printed in one second substrate surface, and described pressure drag material has at least one slotted eye;
One keycap is located on the described pressure responsive element;
Wherein, the slotted eye of described pressure drag material is the uncoated zone that described high conductive material is arranged of described first substrate surface of counterpart at least, make the emission of described light guide plate the penetrable described pressure responsive element of light slotted eye and arrive described key cap surface so that described keycap is luminous.
2. illuminated keyboard as claimed in claim 1, it is characterized in that, described high conductive material is printed in one first substrate surface and forms one first electrode and one second electrode, described first electrode and described second electrode are finger, and be separated from each other with gap and be crisscross arranged in described first substrate surface to have, and described pressure drag material described first electrode of linking portion and described second electrode at least.
3. illuminated keyboard as claimed in claim 1 is characterized in that, is provided with a light source in a side of described light guide plate, and described light source projects light is to the side of described light guide plate, and described light is penetrated by the exiting surface of described light guide plate again.
4. illuminated keyboard as claimed in claim 1 is characterized in that, is provided with a reflector in the bottom surface of described light guide plate, the light that emits in order to the bottom surface of reflecting described light guide plate.
5. illuminated keyboard as claimed in claim 1 is characterized in that, the high conductive material of described film circuit board is the silver slurry.
6. illuminated keyboard as claimed in claim 1, it is characterized in that, the slotted eye of described pressure drag material is square slotted eye, it has long limit and minor face, when described pressure responsive element was disposed on the described film circuit board, the long limit of the slotted eye of described pressure drag material was parallel with the bearing of trend of described first electrode and the second electrode finger.
7. illuminated keyboard as claimed in claim 1, it is characterized in that, the slotted eye of described pressure drag material is square slotted eye, it has long limit and minor face, when described pressure responsive element was disposed on the described film circuit board, the long limit of the slotted eye of described pressure drag material was vertical with the bearing of trend of described first electrode and the second electrode finger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102202097 | 2013-01-31 | ||
| TW102202097U TWM461091U (en) | 2013-01-31 | 2013-01-31 | Light-emitting keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192658U true CN203192658U (en) | 2013-09-11 |
Family
ID=49109497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143861 Expired - Lifetime CN203192658U (en) | 2013-01-31 | 2013-03-27 | Luminous keyboard |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203192658U (en) |
| TW (1) | TWM461091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074769A (en) * | 2016-11-18 | 2018-05-25 | 致伸科技股份有限公司 | Keyboard |
| CN110660599A (en) * | 2019-09-27 | 2020-01-07 | 维沃移动通信有限公司 | Key module and electronic equipment |
-
2013
- 2013-01-31 TW TW102202097U patent/TWM461091U/en not_active IP Right Cessation
- 2013-03-27 CN CN 201320143861 patent/CN203192658U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074769A (en) * | 2016-11-18 | 2018-05-25 | 致伸科技股份有限公司 | Keyboard |
| CN110660599A (en) * | 2019-09-27 | 2020-01-07 | 维沃移动通信有限公司 | Key module and electronic equipment |
| CN110660599B (en) * | 2019-09-27 | 2022-03-11 | 维沃移动通信有限公司 | Key module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM461091U (en) | 2013-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |