CN200956323Y - Keyboard backlight improved structure - Google Patents
Keyboard backlight improved structure Download PDFInfo
- Publication number
- CN200956323Y CN200956323Y CN 200620149363 CN200620149363U CN200956323Y CN 200956323 Y CN200956323 Y CN 200956323Y CN 200620149363 CN200620149363 CN 200620149363 CN 200620149363 U CN200620149363 U CN 200620149363U CN 200956323 Y CN200956323 Y CN 200956323Y
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- China
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- light
- keyboard
- circuit board
- emitting diode
- perforation
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- Input From Keyboards Or The Like (AREA)
Abstract
The utility model relates to a backlighting improvement structure of keyboard. On one outer side of a circuit board is equipped with a plurality of spring plate, between which is provided with a plurality of light-emitting diode. A transparent keyboard is covered on the spring plate side of the circuit board, several keys on the keyboard corresponds to the spring plate of the circuit board. A reflector is arranged between the circuit board and the light-emitting diode and is provided with several receiving holes corresponding to each light emitting diode, and is clung to the circuit board to make the receiving hole receive each light-emitting diode. A transparent light guide is arranged between the keyboard and the reflector, and provided with several key holes and the receiving holes corresponding to the key on keyboard and the light-emitting diode, and the circumference of the key hole is equipped with a through-hole area arranging with through-holes. The utility model has the advantages of better lighting effect, uniform backlighting quality, extremely low energy consumption and wide application on various 3C products.
Description
Technical field
The utility model is a kind of improvement structure backlight that is used for the keyboard of 3C Product, is meant especially that a kind of light source consumption is few, low power consuming and even brightness keyboard back light structure.
Background technology
In the structure of modern 3C Product, the application form that many various key boards are arranged, no matter but which kind of structure its keyboard be, suitable backing structure all must be arranged as its lighting source when the insufficient light, and the backing structure of conventional keys keyboard, as Fig. 1, shown in Figure 2, it is provided with the shell fragment 11 of a plurality of separation in a table side of a circuit board 1, and a plurality of light-emitting diodes 3 are set according to need between each shell fragment 11, the keyboard 20 of one light-permeable is covered on the shell fragment 11 1 sides top of this circuit board 1, be provided with each shell fragment 11 that a plurality of buttons 201 correspond respectively to circuit board 1 in this keyboard 20, and between each button 201, be provided with a plurality of recesses 202 and correspond respectively to each light-emitting diode 3, one reflecting piece 40 is located between this circuit board 1 and the keyboard 20, be provided with the position that a plurality of ccontaining holes 401 correspond respectively to each light-emitting diode 3 in this reflecting piece 40, when making this keyboard 20 with circuit board 1 clamping reflecting piece 40, these a plurality of light-emitting diodes 3 can be placed in the recess 202 of the ccontaining hole 401 of reflecting piece 40 and keyboard 20, when this button 201 is pressed, can touch corresponding shell fragment 11 on the circuit board 1 via reflecting piece 40, and the light that this light-emitting diode 3 is sent, reflection then can make progress via the reflecting piece 40 of periphery by keyboard 20, use the backing structure that forms a keyboard 20; Yet, this kind structure itself since reflecting piece 40 only can be simple reflection ray, evenly do not reach diffusion effect and do not have light, therefore, the effect backlight of its integral body can present partly, and position (position that light-emitting diode 3 is provided with) periphery has high brightness, all the other positions then brightness are lower, and the situation of this kind brightness irregularities is the big defective on using.
In addition as Fig. 3, structure shown in Figure 4, it directly is attached at keyboard 2 a table side of the circuit board 10 of a light-permeable, and a side of facing keyboard 2 on this circuit board 10 is provided with a plurality of shell fragments 101 each button 21 corresponding to keyboard 2, the opposite side surface of this circuit board 10 then is provided with a plurality of light-emitting diodes 3, and fit in the light-emitting diode 3 one sides top of this circuit board 10 with a light guide plate 50, be provided with the position of a plurality of ccontaining holes 501 in this light guide plate 50 corresponding to each light-emitting diode 3, and be provided with the shell fragment 11 of a plurality of Printing Zones 502 corresponding to circuit board 10, at last, be covered on light guide plate 50 with a reflecting piece 400, a plurality of light-emitting diodes 3 can be placed in the ccontaining hole 501 of light guide plate 50, when this button 21 is pressed, it can directly touch corresponding shell fragment 11 on the circuit board 10, and the light that light-emitting diode 3 is sent, partly can directly make progress by circuit board 10, keyboard 2, remaining light then can be downwards by reflecting piece 400 reflections, evenly spread by light guide plate 50 again, at last upwards by circuit board 10, keyboard 2 forms a complete backing structure, therefore it can make the whole state uniformly that presents backlight because part light can evenly spread via light guide plate 50; Yet, its light owing to light-emitting diode 3 of this kind structure must penetrate circuit board 10 can be become backlight by keyboard 2, therefore, be subjected to the obstruct of circuit board 10 and make the light luminance backlight of its integral body lower, and the consumption of light-emitting diode 3 and power consumption thereof can't reduce, and this is the part that haves much room for improvement in its application.
Because there is above-mentioned shortcoming in the keyboard back light structure of prior art, the utility model improves at above-mentioned shortcoming, designs a kind of new keyboard back light structure finally.
Summary of the invention
Main purpose of the present utility model is to provide a kind of improvement structure backlight of keyboard, and it can make the button periphery have preferable brightness, and the whole illuminating effect uniformly that has backlight, can effectively promote quality backlight.
Another purpose of the present utility model is to provide a kind of improvement structure backlight of keyboard, and it can effectively reduce the power consumption of back light, reduces use cost.
For reaching above-mentioned purpose and effect, the technological means that the utility model provides is as follows:
A kind of improvement structure backlight of keyboard comprises: a circuit board is provided with a plurality of shell fragments in a table side, and between each shell fragment a plurality of light-emitting diodes is set according to need; The keyboard of one light-permeable is covered on a side of this circuit board tool shell fragment, is provided with each shell fragment that a plurality of buttons correspond respectively to circuit board in this keyboard; The light guide plate of one light-permeable is located between this keyboard, the circuit board, is provided with button and each light-emitting diode that a plurality of button holes, ccontaining hole correspond respectively to keyboard in it, is provided with the perforation district of being arranged by perforation in this button hole periphery ring.
By above-mentioned technical characterictic, the beneficial effects of the utility model show as: not only can make button produce preferable illuminating effect, and can reach uniform quality backlight.Simultaneously, the improvement structure backlight of keyboard of the present utility model is the bottom side that light guide plate, reflecting piece directly is arranged at keyboard, therefore, can produce backlightly uniformly with extremely low power consumption, can be widely used in various 3C Products.
Description of drawings
Fig. 1 is the backing structure exploded view of a conventional keyboard.
Fig. 2 is the plane combination section of Fig. 1.
Fig. 3 is the backing structure exploded view of another conventional keys keyboard.
Fig. 4 is the plane combination section of Fig. 3.
Fig. 5 is a structure decomposition map of the present utility model.
Fig. 6 is a combination schematic diagram of the present utility model.
Fig. 7 is the A-A profile of Fig. 6.
Symbol description among the figure
1,10.... circuit board
11,101... shell fragment
2,20.... keyboard
21,201.... button
202... recess
3..... light-emitting diode
4,40,400... reflecting piece
41,401,501, the ccontaining hole of 53....
5,50.... light guide plate
51.... button hole
52.... perforation district
502... Printing Zone
Embodiment
As shown in Figures 1 to 4, be the backing structure of traditional various keyboards, its main composition with and defective, as previously mentioned, repeated description no longer herein.
Fig. 5 is a structure decomposition map of the present utility model, by it with reference to Fig. 6, combination schematic diagram and the profile thereof of Fig. 7, can clearly find out, the utility model mainly comprises: circuit board 1, keyboard 2, light-emitting diode 3, reflecting piece 4 and light guide plate 5 etc. are partly, wherein this circuit board 1 is provided with the shell fragment 11 of a plurality of separation in a table side, and a plurality of light-emitting diodes 3 are arranged at appropriate location between each shell fragment 11, the keyboard 2 of light-permeable is provided with each shell fragment 11 that a plurality of buttons 21 correspond respectively to circuit board 1, reflecting piece 4 is provided with a plurality of ccontaining holes 41 corresponding to each light-emitting diode 3, this reflecting piece 4 can be fitted on the circuit board 1, and with each ccontaining hole 41 ccontaining each light-emitting diode 3, light guide plate 5 is made with the light-permeable material, it is located between this keyboard 2 and the reflecting piece 4, because for considering this light guide plate 5, thickness after reflecting piece 4 is superimposed is to the influence of shell fragment 11 actions of the button 21 contact circuit plates 1 of keyboard 2, therefore, be provided with the button 21 that a plurality of button holes 51 correspond respectively to keyboard 2 in light guide plate 5, be beneficial to the shell fragment 11 of the button 21 of keyboard 2 via reflecting piece 4 pushing and pressing circuit boards 1, and be provided with consistent porose area 52 in these button hole 51 periphery rings, this perforation district 52 is arranged by perforation and forms, its width is less than 30mm, and each perforation is arranged thinner in a side of contiguous light-emitting diode 3, then arrange closeer in the side away from light-emitting diode 3.
During use, when this button 21 is pressed, it can push against corresponding shell fragment 11 conductings on the circuit board 1 by the button hole 51 of light guide plate 5 and via reflecting piece 4, the light that this light-emitting diode 3 is sent, inner peripheral by ccontaining hole 53 enters light guide plate 5, and can reflect in each perforation in perforation district 52, and therefore the light of refraction downwards can have preferable refraction, reflection in each perforation position in this perforation district 52 via reflecting piece 4 upwards reflection again; Cooperate perforation district 52 to have the perforation of lesser amt (estranged arrangement) in adjacent light-emitting diode 3 sides again, in the perforation that then has a greater number (dense arrangement) away from light-emitting diode 3 sides, not only be able to by this produce preferable illuminating effect, and have uniform quality backlight in button 21.
The structure that the utility model is above-mentioned, it directly is arranged at the bottom side of keyboard 2 owing to light guide plate 5, reflecting piece 4, therefore, can extremely low power consumption and produce backlight uniformly, can be widely used in various 3C Products, as: PDA, PDA PHONE, interphone, mobile phone, GPS PDA, PURE GPS, printer, photocopier, facsimile machine, mobile computer, personal computer, language translation machine, game machine, ATM (automatic teller machine), ticket machine, remote controller etc.; Or various 4C products, as: air conditioner panel, operating sound equipment of car panel, refrigerator or other guidance panel etc.
From the above mentioned as can be known, the improvement structure backlight of the utility model keyboard has low cost, low power consuming and even brightness effect really, has really had usability, novelty and progressive on the industry.
The above only is a preferred embodiment of the present utility model, is not to be used for limiting the scope that the utility model is implemented.Be that all equalizations of being done according to the utility model claim change and modification, be all the utility model claim and contain.
Claims (5)
1. the improvement structure backlight of a keyboard is characterized in that, comprises at least:
One circuit board is provided with a plurality of shell fragments in a table side, and between each shell fragment a plurality of light-emitting diodes is set according to need;
The keyboard of one light-permeable is covered on a side of this circuit board tool shell fragment, is provided with each shell fragment that a plurality of buttons correspond respectively to circuit board in this keyboard;
The light guide plate of one light-permeable is located between this keyboard, the circuit board, is provided with button and each light-emitting diode that a plurality of button holes, ccontaining hole correspond respectively to keyboard in it, is provided with the perforation district of being arranged by perforation in this button hole periphery ring.
2. the improvement structure backlight of keyboard as claimed in claim 1 is characterized in that, each perforation district has few perforation in a side of contiguous light-emitting diode, and has many perforations in the side away from light-emitting diode.
3. the improvement structure backlight of keyboard as claimed in claim 1 is characterized in that, the perforation in each perforation district is in a side dense arrangement of contiguous light-emitting diode, and arranges estranged in the side away from light-emitting diode.
4. the improvement structure backlight of keyboard as claimed in claim 1 is characterized in that, is provided with a reflecting piece between this circuit board, the light guide plate, and being provided with a plurality of ccontaining holes in this reflecting piece can corresponding ccontaining each light-emitting diode.
5. the improvement structure backlight of keyboard as claimed in claim 1 is characterized in that the width in this perforation district is less than 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149363 CN200956323Y (en) | 2006-10-20 | 2006-10-20 | Keyboard backlight improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149363 CN200956323Y (en) | 2006-10-20 | 2006-10-20 | Keyboard backlight improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956323Y true CN200956323Y (en) | 2007-10-03 |
Family
ID=38774909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620149363 Expired - Fee Related CN200956323Y (en) | 2006-10-20 | 2006-10-20 | Keyboard backlight improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956323Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214523A (en) * | 2010-04-09 | 2011-10-12 | 宏碁股份有限公司 | Portable electronic device and key structure thereof |
| CN101859182B (en) * | 2009-04-13 | 2012-05-02 | 群光电子(苏州)有限公司 | Luminous keyboard |
| CN103867959A (en) * | 2012-12-10 | 2014-06-18 | 苏州璨宇光学有限公司 | Backlight modular and electronic device with backlight modular |
| CN116524823A (en) * | 2023-05-23 | 2023-08-01 | 东莞市康德光电科技有限公司 | Backlight source structure of remote controller and manufacturing method thereof |
-
2006
- 2006-10-20 CN CN 200620149363 patent/CN200956323Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859182B (en) * | 2009-04-13 | 2012-05-02 | 群光电子(苏州)有限公司 | Luminous keyboard |
| CN102214523A (en) * | 2010-04-09 | 2011-10-12 | 宏碁股份有限公司 | Portable electronic device and key structure thereof |
| CN102214523B (en) * | 2010-04-09 | 2013-07-24 | 宏碁股份有限公司 | Portable electronic device and key structure thereof |
| CN103867959A (en) * | 2012-12-10 | 2014-06-18 | 苏州璨宇光学有限公司 | Backlight modular and electronic device with backlight modular |
| CN103867959B (en) * | 2012-12-10 | 2016-08-03 | 苏州璨宇光学有限公司 | Backlight module and there is the electronic installation of backlight module |
| CN116524823A (en) * | 2023-05-23 | 2023-08-01 | 东莞市康德光电科技有限公司 | Backlight source structure of remote controller and manufacturing method thereof |
| CN116524823B (en) * | 2023-05-23 | 2023-10-20 | 东莞市康德光电科技有限公司 | Backlight source structure of remote controller and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20101020 |