CN110379663A - A kind of keyboard back light mould group - Google Patents
A kind of keyboard back light mould group Download PDFInfo
- Publication number
- CN110379663A CN110379663A CN201910664608.7A CN201910664608A CN110379663A CN 110379663 A CN110379663 A CN 110379663A CN 201910664608 A CN201910664608 A CN 201910664608A CN 110379663 A CN110379663 A CN 110379663A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- keyboard
- back light
- mould group
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Landscapes
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of keyboard back light mould group, including flexible circuit board, the flexible circuit board has unified data-interface；Several concatenated adopting surface mounted LEDs are provided in the flexible circuit board.The complication of keyboard lines is solved, while simplifying keyboard lines, integrated, reduces the space of keyboard complete machine, is thinned keyboard；Be conducive to the design of product.
Description
Technical field
The present invention relates to the keyboard back light moulds that backlight module more particularly to a kind of keyboard and control mould group are combined into one
Group.
Background technique
The setting of keyboard back light mould group is at the keyboard back side, for the light efficiency needed for providing to keyboard.The LED light of current keyboard
Effect control has control module outer signal and independent control, is separated between keyboard with every element, control module and keyboard
Certain keypad space is occupied respectively, can not effectively be reduced the thickness of keyboard, is unfavorable for what product was thinned and minimized
Development, while existing keyboard lines are complicated, also limit the miniaturization of circuit board.
Summary of the invention
To overcome disadvantages mentioned above, the purpose of the present invention is to provide a kind of keyboard back light mould group, keyboard and control mould group group
It is integrated to reduce the thickness of keyboard structure, realizes the slimming of product.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of keyboard back light mould group, including flexible circuitry
Plate, the flexible circuit board have unified data-interface；Several concatenated patch type are provided in the flexible circuit board
LED.The complication of keyboard lines is solved, while simplifying keyboard lines, integrated, reduces the space of keyboard complete machine, makes
Keyboard slimming；Be conducive to the design of product.
Furthermore, it is understood that the capacitor for pressure stabilizing is provided between two adopting surface mounted LEDs on the route at place.
Furthermore, it is understood that being integrated with IC chip in the flexible circuit board, controlled for program and signal；The IC chip
It is connected with the ground level of triode, the collector of the triode is grounded with connecting for adopting surface mounted LED, the emitting stage of the triode.It is logical
Illumination effect, the frequency etc. for crossing IC chip process control LED show required luminous pattern.
Furthermore, it is understood that being additionally provided in the flexible circuit board and the concatenated threshold value end of adopting surface mounted LED, the threshold value
End connects the power supply by a resistance and passes through a capacity earth.
Furthermore, it is understood that the front of the flexible circuit board is printed with black out ink as keyboard back light, and then by keyboard
Background has been integrated into flexible circuit board, to reduce the thickness of keyboard.
Furthermore, it is understood that setting button in the flexible circuit board, the bottom of above-mentioned key has flexible material, such as silicon
Glue, buffering push impact force when key, protect flexible circuit board.
Compared with prior art, the present invention is a kind of product that keyboard is integrated with control die combination, the keyboard back light mould
Group incorporates control mould group (flexible circuit board) and is integrated with keyboard back light, LED；Control mould group effect is right after write-in program
LED light effect or other function key are controlled on keyboard, and keyboard back light, LED effect are that desired illumination effect is presented；The two
It is integrated, forms an entirety, by design, product is more slim, and unfailing performance is higher, easier in assembling application process.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the embodiment of the present invention.
Fig. 2 is the concatenated circuit diagram of adopting surface mounted LED in the embodiment of the present invention.
In figure:
1-IC chip；2- triode；3- adopting surface mounted LED；41- resistance；The second capacitor of 42-；5- first capacitor.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment
One of the present embodiment keyboard back light mould group, including substrate, the substrate can be by PET, PC or PMMA material
Made of material, circuit board is provided on substrate, is covered with light guide plate on the circuit board, be provided on light guide plate keyboard volume by
Key is provided with light source (usually LED) corresponding with key below light guide plate, is provided on light guide plate and penetrates for source light
Through-hole, when meeting button pressed keyboard shine.Current keyboard back light modular structure is substantially such, the present embodiment pair
Above structure is improved, and to reduce the whole thickness of keyboard, realizes miniaturization, slimming convenient for it.It is specific as follows:
Circuit board uses flexible circuit board, and Fig. 1 is the general frame of route on flexible circuit board, in the flexible circuit board
It is integrated with IC chip 1, is controlled for program and signal；The IC chip 1 is connected with the ground level of triode 2, the collection of the triode 2
Electrode is connected with adopting surface mounted LED 3, the emitting stage ground connection of the triode 2.Pass through the luminous effect of 1 process control LED of IC chip
Fruit, frequency etc. show required luminous pattern.It is additionally provided in the flexible circuit board and adopting surface mounted LED 3 concatenated one
Threshold value end, the threshold value end connect the power supply by a resistance 41 and are connect by a capacitor 42 (this is named as the second capacitor)
Ground.In Fig. 1: VCC: power input；Capacitor: effect is pressure stabilizing；Resistance: effect is current limliting；LED: effect is luminous；Triode:
The effect for amplified signal of opening the light；IC: program and signal control.
Multiple adopting surface mounted LEDs 3 connect concatenated mode as shown in Fig. 2, there are the flexible circuit board unified data to connect
Mouthful；Several concatenated adopting surface mounted LEDs 3 are provided in the flexible circuit board.Due to using series system, keyboard lines are solved
Complication, simplify keyboard lines, integrated, reduce the space of keyboard complete machine, be thinned keyboard；Be conducive to product
Design.Wherein in order to ensure the stability of flexible circuit board in use, where between two adopting surface mounted LEDs 3
The capacitor 5 for pressure stabilizing is provided on route (this is named as first capacitor).
While in order to reduce the thickness of keyboard, the front of the flexible circuit board is printed with black out ink and carries on the back as keyboard
Light, and then keyboard background has been integrated into flexible circuit board.Simultaneously also key is integrated into flexible circuit board, mode be
Contact is set in flexible circuit board, is equipped with flexible material, the vibration absorber as made of silica gel in the bottom of key, buffering pushes key
When impact force, protect flexible circuit board.After pressing key instantly in this way, by the pressure change of contact, IC chip controls LED
It shines.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of keyboard back light mould group, which is characterized in that including flexible circuit board, the flexible circuit board has unified data
Interface；Several concatenated adopting surface mounted LEDs are provided in the flexible circuit board.
2. a kind of keyboard back light mould group according to claim 1, which is characterized in where between two adopting surface mounted LEDs
The capacitor for pressure stabilizing is provided on route.
3. a kind of keyboard back light mould group according to claim 1 or 2, which is characterized in that integrated in the flexible circuit board
There is IC chip, is controlled for program and signal；The IC chip is connected with the ground level of triode, the collector and patch of the triode
The series connection of sheet-shaped LED, the emitting stage ground connection of the triode.
4. a kind of keyboard back light mould group according to claim 3, which is characterized in that be additionally provided in the flexible circuit board
With the concatenated threshold value end of adopting surface mounted LED, the threshold value end connects the power supply by a resistance and passes through a capacity earth.
5. a kind of keyboard back light mould group according to claim 4, which is characterized in that the front printing of the flexible circuit board
There is black out ink as keyboard back light.
6. a kind of keyboard back light mould group according to claim 5, which is characterized in that setting is pressed in the flexible circuit board
Key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664608.7A CN110379663A (en) | 2019-07-23 | 2019-07-23 | A kind of keyboard back light mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664608.7A CN110379663A (en) | 2019-07-23 | 2019-07-23 | A kind of keyboard back light mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110379663A true CN110379663A (en) | 2019-10-25 |
Family
ID=68254886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910664608.7A Pending CN110379663A (en) | 2019-07-23 | 2019-07-23 | A kind of keyboard back light mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379663A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765265A (en) * | 2008-12-26 | 2010-06-30 | 英业达股份有限公司 | Keyboard backlight device and control method thereof |
| CN201655263U (en) * | 2010-01-21 | 2010-11-24 | 北京凯瑞通电子技术有限公司 | LCD backlight driving circuit of elevator outer calling board |
| CN102956204A (en) * | 2012-11-30 | 2013-03-06 | 深圳市华星光电技术有限公司 | LED (Light-emitting Diode) backlight drive circuit, backlight module and liquid crystal display device |
| CN204289185U (en) * | 2014-12-12 | 2015-04-22 | 珠海恒宇新科技有限公司 | A kind of backlight keyboard |
| CN205911203U (en) * | 2016-07-07 | 2017-01-25 | 江苏传艺科技股份有限公司 | Keyboard of flexible line way board based on welding has LED |
| CN208077847U (en) * | 2018-04-19 | 2018-11-09 | 精元电脑(江苏)有限公司 | Flexible circuit board illuminated keyboard |
-
2019
- 2019-07-23 CN CN201910664608.7A patent/CN110379663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765265A (en) * | 2008-12-26 | 2010-06-30 | 英业达股份有限公司 | Keyboard backlight device and control method thereof |
| CN201655263U (en) * | 2010-01-21 | 2010-11-24 | 北京凯瑞通电子技术有限公司 | LCD backlight driving circuit of elevator outer calling board |
| CN102956204A (en) * | 2012-11-30 | 2013-03-06 | 深圳市华星光电技术有限公司 | LED (Light-emitting Diode) backlight drive circuit, backlight module and liquid crystal display device |
| CN204289185U (en) * | 2014-12-12 | 2015-04-22 | 珠海恒宇新科技有限公司 | A kind of backlight keyboard |
| CN205911203U (en) * | 2016-07-07 | 2017-01-25 | 江苏传艺科技股份有限公司 | Keyboard of flexible line way board based on welding has LED |
| CN208077847U (en) * | 2018-04-19 | 2018-11-09 | 精元电脑(江苏)有限公司 | Flexible circuit board illuminated keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |
|
| RJ01 | Rejection of invention patent application after publication |