CN101859182A - Luminous keyboard - Google Patents
Luminous keyboard Download PDFInfo
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- CN101859182A CN101859182A CN200910135005A CN200910135005A CN101859182A CN 101859182 A CN101859182 A CN 101859182A CN 200910135005 A CN200910135005 A CN 200910135005A CN 200910135005 A CN200910135005 A CN 200910135005A CN 101859182 A CN101859182 A CN 101859182A
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- light
- guide plate
- light guide
- illuminated keyboard
- keyboard
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Abstract
The invention relates to a luminous keyboard which comprises a key module, a keyboard base plate, a light guide plate, a light source and a first reflecting piece, wherein the key module is provided with a keycap, a scissor bracket, an elastic component and a film circuit board; the keyboard base plate is provided with a key connecting part which corresponds to the keycap and is integrated on the keyboard base plate and used for fixing the key module on the keyboard base plate; the light guide plate is arranged under the key module and on the keyboard base plate and is provided with an incident surface, a bottom surface which is crossed with the incident surface, an emergent surface which is opposite to the incident surface, and light holes which correspond to the key connecting part; the light source is arranged at one side of the incident surface of the light guide plate and is used for projecting light into the light guide plate by the incident surface and ejecting the light out of the light guide plate by the emergent surface; the first reflecting piece is arranged under the bottom surface of the light guide plate, is used for reflecting the light output from the light source into the light guide plate, and is provided with through holes which correspond to the key connecting part; and the through holes also correspond to the light holes.
Description
Technical field
The invention relates to a kind of illuminated keyboard, especially about a kind of illuminated keyboard with innovation light guide plate.
Background technology
Illuminated keyboard gradually becomes the new trend that computing machine is equipped with in recent years, has more and more many computer keyboards can import light guide plate and light source technology, makes the user still can easily use keyboard in the unfavorable occasion of all multiple light courcess.Existing illuminated keyboard structure generally for example comprises keypad portion, back lighting device, base plate and light guide plate.Some existing layer body project organization complexity, light guide plate in the illuminated keyboard of utilization light guide plate has the polylayer forest design, and this kind light guide plate is arranged at the keyboard bottom more, it is far away to desire Lighting Division apart from button, also can't see through the illumination that interior layer body arrival button make in the keyboard effectively by light source through the light that light guide plate penetrates.For example No. 6860612 patent of the U.S. promptly discloses a kind of illuminated keyboard that adopts light guide plate, its light guide plate and light source are to be positioned at the bottom, as mentioned above, just arrived the button that is positioned at the top for making light from light source must pass the layer body that multilayer is arranged at the top, cause the whole illumination effect of keyboard not good, and the polylayer forest infrastructure cost is higher.In addition, for example No. 6284988 patent of the U.S. of showing of Fig. 1 promptly used single electroluminescence (this existing illuminated keyboard 1 roughly comprised keypad portion 21, back lighting device 25 for Electroluminescent, EL) material.Keypad portion 21 has base plate 23 and circuit board 24.Circuit board 24 is provided with flexible member 26, keycap 22, scissor structure 27.This back lighting device 25 is EL, though integral thickness is thinner, darkness deepens, the circuit complexity to need big voltage, life-span weak point and meeting during the EL activation, and the problem of electromagnetic interference (EMI) keyboard film circuit board is also arranged.
Summary of the invention
Because the disappearance of above-mentioned prior art the purpose of this invention is to provide a kind of illuminated keyboard with not enough, can effectively promote the keyboard illumination effect, significantly promote the utilization factor of light, and reduce manufacturing cost.
According to a kind of illuminated keyboard provided by the invention, comprise: key-press module has keycap, Holder for scissors, elastic component and film circuit board; Keyboard board has corresponding to described keycap and is integrally formed in button connecting portion on this keyboard board, in order to this key-press module is fixed on this keyboard board; Light guide plate is located at this key-press module below and this keyboard board top, the basal surface that this light guide plate has incidence surface, intersect with this incidence surface, reaches the exiting surface relative with this incidence surface, and is provided with the light hole corresponding to described button connecting portion; Light source is located at a side of this incidence surface of this light guide plate, and this light source goes into to inject this light guide plate with light by this incidence surface, and penetrates this light guide plate by this exiting surface; And first reflector plate, be located at this basal surface below of this light guide plate, reflect into this light guide plate in order to the light that will export from this light source, this first reflector plate is provided with the through hole corresponding to described button connecting portion, described through hole is also corresponding to this light hole, wherein the described light hole of this light guide plate is the described through hole greater than this reflector plate, the light of going into to inject this light guide plate utilizes described light hole to produce various optical phenomenas, so that light effectively shines this key-press module of this light guide plate top by described light hole, and the wall of the described light hole of this light guide plate is with respect to the angle θ of the basal surface of this light guide plate
ACan be 10 °≤θ
A≤ 170 °, wherein with 45 °≤θ
A≤ 90 ° is preferable.
According to the illuminated keyboard of one embodiment of the invention, the basal surface of this light guide plate is provided with a plurality of light converging patterns district, in order to the light of going into to inject this light guide plate is reflected and the optically focused effect that reflects.
According to the illuminated keyboard of one embodiment of the invention, described light converging pattern district is formed at the optically focused particle on this basal surface of this light guide plate with printing, pressing or blasting treatment mode.
According to the illuminated keyboard of one embodiment of the invention, at least one side of this light guide plate can be coated with reflective material, in order to will the luminous energy of this light source effectively being utilized from this light guide plate of light reflected back of this leaded light edges of boards ejaculation.
According to the illuminated keyboard of one embodiment of the invention, this light guide plate is by the plastics injection molding.
According to the illuminated keyboard of one embodiment of the invention, this reflector plate is bright reflective material of white.
According to the illuminated keyboard of one embodiment of the invention, this light source can be provided with place in the middle of this light guide plate below each other at a certain distance with respect to the basal surface of this light guide plate.
According to the illuminated keyboard of one embodiment of the invention, this button base plate can be metallic mirror surface.
According to the illuminated keyboard of one embodiment of the invention, this film circuit board has elasticity soft formation and circuit layer.
Illuminated keyboard according to one embodiment of the invention, this film circuit board has the opening corresponding to described button connecting portion, pass in order to described button connecting portion, and this film circuit board is fixed on this button base plate, and allow the light that penetrates from this light guide plate exiting surface pass through the described keycap of described opening directive.
Illuminated keyboard according to one embodiment of the invention, described button connecting portion passes the part of the described through hole on this reflecting plate top, the part of the described light hole on this light guide plate and the part of the described opening on this film circuit board, and this reflecting plate, this light guide plate and this film circuit board are connected.
Illuminated keyboard according to one embodiment of the invention, each is located at described Holder for scissors between described keycap and the described elastic component, each is located at described elastic component on this film circuit board, described Holder for scissors each can make relative this button base plate of corresponding keycap move up and down, when each is pressed downward when described keycap, each just can press this film circuit board described elastic component, with output corresponding signal.
According to the illuminated keyboard of one embodiment of the invention, this circuit layer of this film circuit board is to make with light transmissive material.
According to the illuminated keyboard of one embodiment of the invention, this circuit layer of this film circuit board can mode of printing be formed at the upper surface of this light guide plate.
According to the illuminated keyboard of one embodiment of the invention, this light source is a light emitting diode.
According to the illuminated keyboard of one embodiment of the invention, this light converging pattern district can be formed on the upper surface of this light guide plate.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, describe the embodiment of the invention in detail hereinafter with reference to accompanying drawing, wherein:
Fig. 1 is the cross-sectional view of existing illuminated keyboard;
Fig. 2 is the three-dimensional exploded view of embodiments of the invention;
Fig. 3 is the sectional view of light guide plate according to an embodiment of the invention;
Fig. 4 is the vertical view of the light guide plate of illuminated keyboard according to an embodiment of the invention;
Fig. 5 is the vertical view of the reflecting piece of illuminated keyboard according to an embodiment of the invention; And
Fig. 6 is light guide plate, reflector plate and the button base plate combination vertical view of illuminated keyboard according to an embodiment of the invention.
Embodiment
Shown in the illuminated keyboard three-dimensional exploded view of the present invention of Fig. 2, the illuminated keyboard 10 of a preferred embodiment comprises key-press module 11, keyboard board 12, light guide plate 13, light source 14 and first reflector plate 15.Key-press module 11 has keycap 111, Holder for scissors 112, elastic component 113 and film circuit board 114.Keyboard board 12 has corresponding to described keycap 111 and is integrally formed in button connecting portion 121 on the keyboard board 12, in order to key-press module 11 is fixed on the keyboard board 12.Light guide plate 13 is located at key-press module 11 belows and keyboard board 12 tops.The basal surface 132 that light guide plate 13 has incidence surface 131, intersect with incidence surface 131, and the exiting surface 133 relative with incidence surface 131, and be provided with light hole 134 corresponding to button connecting portion 121.Be located at a side of the incidence surface 131 of light guide plate 13 by for example light source 14 of several light emitting diodes (LED) formation.Light source 14 goes into to inject light guide plate 13 with light by incidence surface 131, and penetrates light guide plate 13 by exiting surface 133.Referring to Fig. 2, first reflector plate 15 is located at basal surface 132 belows of this light guide plate 13, reflects into light guide plate 13 in order to the light that will export from light source 14 again.As Fig. 2 and shown in Figure 5, first reflector plate 14 is provided with the through hole 151 corresponding to button connecting portion 121.All through holes 151 are also corresponding to all light holes 134.
The light hole 134 of light guide plate 13 is the through holes 151 greater than first reflector plate 15.It is various such as comprehensive optical phenomenas such as reflection, refraction, retroeflection or its that the light of going into to inject light guide plate 13 utilizes light hole 134 to produce, so that light is by the effective key-press modules of irradiation light guide plate 13 tops of light hole 134.
Referring to the sectional view of light guide plate according to an embodiment of the invention shown in Figure 3, the wall of the light hole 134 of the light guide plate 13 of illuminated keyboard of the present invention is with respect to the angle θ of the basal surface 132 of this light guide plate
ACan be 10 °≤θ
A≤ 170 °, wherein with 45 °≤θ
A≤ 90 ° is preferable.Light guide plate 13 is by the plastics injection molding according to an embodiment of the invention, so manufacture craft is simple, can reduce whole manufacturing cost.
Fig. 4 is the vertical view of the light guide plate 13 of illuminated keyboard of the present invention.Can form tiny optically focused particle on the basal surface 132 of light guide plate 13 with printing, pressing or blasting treatment mode on the basal surface of light guide plate 13, with further formation a plurality of light converging patterns district 135 as shown in Figure 4.The effect in light converging pattern district 135 is the light of going into to inject light guide plate 13 is reflected and the optically focused effect that reflects.In addition, light converging pattern district 135 also can be formed on the upper surface relative with the lower surface of light guide plate 13.
Because the transmission of light is comprehensive, so be injected into the interior light of light guide plate except from exiting surface penetrates, also can penetrate other zone, therefore, at least one side that is different from incidence surface of light guide plate 13 can be coated with reflective material (not shown), in order to this light guide plate 13 of light reflected back that will penetrate from least one side of light guide plate, so that effectively utilize the light of light source.
Reflector plate can be bright of the reflective white of plastics/PVC according to an embodiment of the invention.In another embodiment, anti-wet look also can be and has different colours bright of the color of (for example green, indigo plant etc.).In another embodiment, reflector plate can directly be engaged on the basal surface of the light guide plate adjacent with the button base plate with coating, printing or adhesive means, and this measure can be omitted one deck reflecting piece, more can reduce the thickness of whole illuminated keyboard.
The light source 14 that constitutes with LED of illuminated keyboard of the present invention is except a side of this incidence surface that can be located at this light guide plate as shown in Figure 6, according to one embodiment of the invention, the a plurality of LED that constitute light source can be provided with place in the middle of this light guide plate below each other at a certain distance with respect to the basal surface of this light guide plate.In addition, using LED to be as the characteristics of light source can conversion shades of colour and arrangement, can also represent seven color colors simultaneously.
Referring to Fig. 2, Holder for scissors 112 is located between keycap 111 and the elastic component 113 for existing common scissor structure again.Elastic component 113 is located on the film circuit board 114.Holder for scissors can make relative this button base plate of corresponding keycap move up and down, and when each keycap was pressed downward, each corresponding elastic component just can press this film circuit board, to produce respective signal.
The circuit layer of film circuit board 111 is to make with light transmissive material.In addition, circuit layer can also mode of printing be formed at the upper surface of light guide plate.
The various embodiments described above only are illustrative principle of the present invention and effect thereof, but not are used to limit the present invention.Modification and change that any personage who is familiar with this technology can reach easily are included in the scope of this case instructions disclosure and appended the application's claim.Therefore, the application's claim scope is listed as described later for the scope of the present invention.
Claims (16)
1. illuminated keyboard comprises:
Key-press module has keycap, Holder for scissors, elastic component and film circuit board;
Keyboard board has corresponding to described keycap and is integrally formed in button connecting portion on this keyboard board, in order to this key-press module is fixed on this keyboard board;
Light guide plate is located at this key-press module below and this keyboard board top, the basal surface that this light guide plate has incidence surface, intersect with this incidence surface, reaches the exiting surface relative with this incidence surface, and is provided with the light hole corresponding to described button connecting portion;
Light source is located at a side of this incidence surface of this light guide plate, and this light source goes into to inject this light guide plate with light by this incidence surface, and penetrates this light guide plate by this exiting surface; And
First reflector plate is located at below this basal surface of this light guide plate, reflects into this light guide plate in order to the light that will export from this light source, and this first reflector plate is provided with the through hole corresponding to described button connecting portion, and described through hole is also corresponding to this light hole, wherein
The described light hole of this light guide plate is the described through hole greater than this reflector plate, and the light of going into to inject this light guide plate utilizes described light hole to produce various optical phenomenas, so that light effectively shines this key-press module of this light guide plate top by described light hole, and
The wall of the described light hole of this light guide plate is with respect to the angle θ of the basal surface of this light guide plate
ACan be 10 °≤θ
A≤ 170 °, wherein with 45 °≤θ
A≤ 90 ° is preferable.
2. illuminated keyboard as claimed in claim 1 is characterized in that, the basal surface of this light guide plate is provided with a plurality of light converging patterns district, in order to the light of going into to inject this light guide plate is reflected and the optically focused effect that reflects.
3. illuminated keyboard as claimed in claim 2 is characterized in that, described light converging pattern district is formed at the optically focused particle on this basal surface of this light guide plate with printing, pressing or blasting treatment mode.
4. illuminated keyboard as claimed in claim 1 is characterized in that, at least one side that is different from this incidence surface of this light guide plate is coated with reflective material, in order to this light guide plate of light reflected back that will penetrate from this leaded light edges of boards.
5. illuminated keyboard as claimed in claim 1 is characterized in that this light guide plate is by the plastics injection molding.
6. illuminated keyboard as claimed in claim 1 is characterized in that, this reflector plate is bright reflective material of white.
7. illuminated keyboard as claimed in claim 1 is characterized in that, this light source can be provided with place in the middle of this light guide plate below each other at a certain distance with respect to the basal surface of this light guide plate.
8. illuminated keyboard as claimed in claim 1 is characterized in that, this button base plate can be metallic mirror surface.
9. illuminated keyboard as claimed in claim 1 is characterized in that this film circuit board has elasticity soft formation and circuit layer.
10. illuminated keyboard as claimed in claim 1, it is characterized in that, this film circuit board has the opening corresponding to described button connecting portion, pass in order to described button connecting portion, and this film circuit board is fixed on this button base plate, and allow the light that penetrates from this light guide plate exiting surface pass through the described keycap of described opening directive.
11. illuminated keyboard as claimed in claim 1, it is characterized in that, described button connecting portion passes the part of the described through hole on this reflector plate top, the part of the described light hole on this light guide plate and the part of the described opening on this film circuit board, and reflector plate, light guide plate and film circuit board are connected.
12. illuminated keyboard as claimed in claim 1, it is characterized in that, each is located at described Holder for scissors between described keycap and the described elastic component, each is located at described elastic component on this film circuit board, described Holder for scissors each can make relative this button base plate of corresponding keycap move up and down, when each was pressed downward when described keycap, each just can press this film circuit board described elastic component, with output corresponding signal.
13. illuminated keyboard as claimed in claim 9 is characterized in that, this circuit layer of this film circuit board is to make with light transmissive material.
14. illuminated keyboard as claimed in claim 9 is characterized in that, this circuit layer of this film circuit board can mode of printing be formed at the upper surface of this light guide plate.
15. illuminated keyboard as claimed in claim 1 is characterized in that, this light source is a light emitting diode.
16. illuminated keyboard as claimed in claim 2 is characterized in that, this light converging pattern district can be formed on the upper surface of this light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101350054A CN101859182B (en) | 2009-04-13 | 2009-04-13 | Luminous keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101350054A CN101859182B (en) | 2009-04-13 | 2009-04-13 | Luminous keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101859182A true CN101859182A (en) | 2010-10-13 |
| CN101859182B CN101859182B (en) | 2012-05-02 |
Family
ID=42945131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101350054A Active CN101859182B (en) | 2009-04-13 | 2009-04-13 | Luminous keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101859182B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323862A (en) * | 2011-10-28 | 2012-01-18 | 上海向隆电子科技有限公司 | Keyboard device |
| CN104347300A (en) * | 2013-08-02 | 2015-02-11 | 扬升照明股份有限公司 | Luminous keyboard |
| CN110908444A (en) * | 2019-12-04 | 2020-03-24 | 联想(北京)有限公司 | Input device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373830Y (en) * | 1998-12-07 | 2000-04-12 | 旭丽股份有限公司 | Key of computer keyboard with positioning structure |
| TW509955B (en) * | 2001-11-30 | 2002-11-11 | Darfon Electronics Corp | Light emitting keyboard |
| CN2720599Y (en) * | 2004-07-01 | 2005-08-24 | 石匀宁 | Luminous keyboard |
| CN200947399Y (en) * | 2006-08-25 | 2007-09-12 | 盛泓企业有限公司 | Backlight improved structure for key-pressing keyboard |
| CN200956323Y (en) * | 2006-10-20 | 2007-10-03 | 盛泓企业有限公司 | Keyboard backlight improved structure |
| CN101266039A (en) * | 2007-03-13 | 2008-09-17 | 光宝科技股份有限公司 | Illuminating device and electronic device employing same |
-
2009
- 2009-04-13 CN CN2009101350054A patent/CN101859182B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323862A (en) * | 2011-10-28 | 2012-01-18 | 上海向隆电子科技有限公司 | Keyboard device |
| CN104347300A (en) * | 2013-08-02 | 2015-02-11 | 扬升照明股份有限公司 | Luminous keyboard |
| CN104347300B (en) * | 2013-08-02 | 2017-01-18 | 扬升照明股份有限公司 | Luminous keyboard |
| US9704671B2 (en) | 2013-08-02 | 2017-07-11 | Young Lighting Technology Inc. | Luminous keyboard |
| CN110908444A (en) * | 2019-12-04 | 2020-03-24 | 联想(北京)有限公司 | Input device |
| CN110908444B (en) * | 2019-12-04 | 2022-11-22 | 联想(北京)有限公司 | Input device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101859182B (en) | 2012-05-02 |
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| PB01 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: CHICONY ELECTRONICS (SUZHOU) CO.,LTD. Free format text: FORMER OWNER: QUNGUANG ELECTRONICS CO., LTD. Effective date: 20110117 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: NO.25, WUGONG ROAD 6, WUGU TOWNSHIP, TAIPEI COUNTY, TAIWAN PROVINCE, CHINA TO: 215200 NO.2379, ZHONGSHAN NORTH ROAD, SONGLING TOWN, WUJIANG CITY, JIANGSU PROVINCE, CHINA |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110117 Address after: Wujiang City, Jiangsu province 215200 China Songling town of Zhongshan North Road No. 2379 Applicant after: Chicony Electronics (Suzhou) Co., Ltd. Address before: China Taiwan Taipei County five shares of the Township five work six road No. 25 Applicant before: Qunguang Electronics Co., Ltd. |
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