CN103323903A - Light guide plate used for light-emitting keyboard and light-emitting keyboard - Google Patents
Light guide plate used for light-emitting keyboard and light-emitting keyboard Download PDFInfo
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- CN103323903A CN103323903A CN2013102373929A CN201310237392A CN103323903A CN 103323903 A CN103323903 A CN 103323903A CN 2013102373929 A CN2013102373929 A CN 2013102373929A CN 201310237392 A CN201310237392 A CN 201310237392A CN 103323903 A CN103323903 A CN 103323903A
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- light
- guide plate
- light guide
- illuminated keyboard
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Abstract
The invention provides a light guide plate used for a light-emitting keyboard and the light-emitting keyboard. The light guide plate is provided with a light inlet part, a light outlet surface, a bottom surface and a lateral side, wherein the light outlet surface and the bottom surface are oppositely arranged, the light inlet part and the lateral side are located between the light outlet surface and the bottom surface, the bottom surface comprises a plurality of reflection points, light entering the light inlet part is guided outwards through positions, corresponding to the reflection points, of the light outlet surface after being reflected through the reflection points, and one edge, close to the lateral side, of the light guide plate is provided with a damaging structure for preventing the light from overflowing from the lateral side. Because the damaging structure is formed on the light guide plate to prevent light leakage, and the light can be guided outwards through the positions, corresponding to the reflection points, of the light outlet surface after being shot into the reflection points, light-emitting positions can be controlled, for example, a user can just let the center of a key emits light.
Description
Technical field
The present invention refers to a kind of light guide plate of destroying structure that has especially about a kind of light guide plate for illuminated keyboard and illuminated keyboard.
Background technology
Fig. 1 is a kind of known illuminated keyboard, comprises keypad portion 01 and illuminating part 02.Many modules backlight 022 with light guide plate 021 collocation side direction type can convert the pointolite of side direction to the area source at positive visual angle in the illuminating part 02, and utilize reflection spot 021a with the light keycap 011 that leads.Yet the light that enters from side direction is indexing fully, overflows from other sides and have the part light source, produces light leakage phenomena, influences the product aesthetic feeling.
Summary of the invention
The present invention destroys structure relevant for a kind of light guide plate for illuminated keyboard by forming in light guide plate self, prevents the light light leak.
The present invention proposes a kind of light guide plate for illuminated keyboard, this light guide plate has light in part, exiting surface, bottom surface and side, this exiting surface and this bottom surface are oppositely arranged, this light in part and this side are between this exiting surface and this bottom surface, this bottom surface comprises a plurality of reflection spots, from light that this light in part enters after this reflection spot reflection, derived by the position corresponding to this reflection spot on this exiting surface, wherein this light guide plate has the destruction structure near the edge of this side, is overflowed by this side to prevent light.
As optional technical scheme, this destruction structure is picked mode, mode of texturing or atomizing type with the laser burning and is made.
As optional technical scheme, this destruction structure is for to make this light guide plate near this edge reflexed of this side.
As optional technical scheme, this destruction structure for this light guide plate near this edge heating of this side or be polished to.
As optional technical scheme, this light guide plate comprises mounting hole, and this light guide plate has this destruction structure in the peripheral part of this mounting hole, is overflowed by this periphery of this mounting hole to prevent light.
As optional technical scheme, this light guide plate comprises holes, and this light in part is positioned at the periphery of this holes.
The present invention proposes a kind of illuminated keyboard again, comprises aforesaid light guide plate.
As optional technical scheme, this illuminated keyboard also comprises light-emitting component, and this light-emitting component is arranged at this light in part side.
As optional technical scheme, this illuminated keyboard also comprises light-emitting component, and this light guide plate comprises holes, and this light-emitting component is arranged in this holes.
Compared with prior art, the present invention destroys structure by forming in light guide plate self, prevents the light light leak, and when light is injected reflection spot, just can be derived by the position of corresponding reflection spot on the exiting surface, just can control luminous position thus, for example only make the button center luminous.
For there is better understanding above-mentioned and other aspect of the present invention, embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the three-dimensional exploded view of known illuminated keyboard.
Fig. 2 is the synoptic diagram of light guide plate according to an embodiment of the invention.
Fig. 3 is the synoptic diagram of light guide plate according to another embodiment of the present invention.
Fig. 4 is the synoptic diagram according to the light guide plate of further embodiment of this invention.
Fig. 5 is the synoptic diagram of light guide plate according to yet another embodiment of the invention.
Fig. 6 is the synoptic diagram according to the light guide plate of further embodiment of this invention.
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.
Please refer to Fig. 2, be the synoptic diagram of light guide plate according to an embodiment of the invention.Light guide plate 100 comprises light in part 110, exiting surface 120, bottom surface 130 and side 140.Exiting surface 120 is with respect to bottom surface 130.Light in part 110 and side 140 and interconnect with exiting surface 120 and bottom surface 130 between exiting surface 120 and bottom surface 130.Destroy the edge that structure 150 is formed at light guide plate 100 adjacent side faces 140.Light guide plate 100 is rectangular flat in this example, and destroy the edge that structure 150 is formed at light guide plate 100 right flanks, in the right practical application, the shape of light guide plate 100 can be adjusted on demand, and destroying the edge that structure 150 can be formed at other any sides 140 except light in part 110, the present invention is not limited.
In addition, it is a kind of that the formation method of destruction structure is not limited to reflexed.Please refer to Fig. 3, be the synoptic diagram of light guide plate 200 according to another embodiment of the present invention.The destruction structure 250 of light guide plate 200 atomizes it for surface treatment is carried out in modes such as polishing or heating in side 240, also can make the edge opaque light that stops that becomes.In this example, light guide plate 200 has more mounting hole 270, can allow the object of screw and so on pass through, the position of lightguide plate fixing 200.For avoiding light to overflow from mounting hole 270 places, can form in the peripheral part of mounting hole 270 and destroy structure 250.
Please refer to Fig. 4, be the synoptic diagram according to the light guide plate 300 of further embodiment of this invention.Light guide plate 300 also has holes 370, but holes 370 herein for example is the light-emitting component 380 of LED in order to hold.That is to say that the periphery of holes 370 is the light in part 310 of light guide plate 300.In addition in this example, destroying structure 350 is to burn with laser to pick mode, and 340 edges form the laser engraving line in the side, also can stop that light 340 overflows from the side.Among one embodiment, to pick a distance be 0.01 millimeter (mm) when laser burns, and the laser engraving width is 2 millimeters (mm) and laser marking speed when being per second 500 millimeters (500mm/s), and the laser engraving line of formation can effectively stop the edge light leak.Certainly, above-mentioned parameter is the usefulness for illustrating only, can't cause restriction to the present invention.
Please refer to Fig. 5, be the synoptic diagram of according to yet another embodiment of the invention light guide plate 400.The destruction structure 450 of light guide plate 400 will be for making the edge become the shape (plane) of non-script near the edge deformation of side 440.Mode of texturing can be to push, cut, thinning, seal and so on etc., and the present invention is not limited.Edge after the distortion becomes opaque, prevents that light L from overflowing.Perhaps, can be as shown in Figure 6, form complicated path at the edge near side 540, make light L after the light guide plate internal reflection, also be difficult to from the side 540 places and overflow.
It should be noted that destruction structure on the light guide plate has more than limit and forms in single mode, and can mix use, for example heating again of distortion earlier, or cut extruding etc. more earlier.Similar, when having a plurality of holes on the light guide plate, these a little holes also are not limited to special purpose, in the holes of part light-emitting component can be set, and its periphery is as light in part, and the edge does not have the destruction structure, and the edge of other holes then can have the destruction structure.
The light guide plate of the above embodiment of the present invention prevents that to destroy structure the light leak situation from taking place.These a little structures of destroying all are formed on light guide plate self, do not assist, can reduce the excessive zero assembly consumption as shielding plate and so on and do not need other to add element, reduce plant bulk or increase inner free space.In addition, the processing procedure that destroys structure also sprays processing procedure saving cost and time in present edge commonly used, does not have the coating pollution problems, can promote the product yield.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, the change of doing without departing from the spirit and scope of the present invention and retouching all belong to scope of patent protection of the present invention.
Claims (9)
1. light guide plate that is used for illuminated keyboard, it is characterized in that: this light guide plate has light in part, exiting surface, bottom surface and side, this exiting surface and this bottom surface are oppositely arranged, this light in part and this side are between this exiting surface and this bottom surface, this bottom surface comprises a plurality of reflection spots, from light that this light in part enters after this reflection spot reflection, derived by the position corresponding to this reflection spot on this exiting surface, wherein this light guide plate has the destruction structure near the edge of this side, is overflowed by this side to prevent light.
2. the light guide plate for illuminated keyboard as claimed in claim 1 is characterized in that: this destruction structure is burnt with laser and is picked mode, mode of texturing or atomizing type and make.
3. the light guide plate for illuminated keyboard as claimed in claim 1, it is characterized in that: this destruction structure is for to make this light guide plate near this edge reflexed of this side.
4. the light guide plate for illuminated keyboard as claimed in claim 1 is characterized in that: this destruction structure for this light guide plate near this edge heating of this side or be polished to.
5. the light guide plate for illuminated keyboard as claimed in claim 1, it is characterized in that: this light guide plate comprises mounting hole, this light guide plate has this destruction structure in the peripheral part of this mounting hole, overflowed by this periphery of this mounting hole to prevent light.
6. the light guide plate for illuminated keyboard as claimed in claim 1, it is characterized in that: this light guide plate comprises holes, this light in part is positioned at the periphery of this holes.
7. illuminated keyboard is characterized in that comprising:
As any described light guide plate among the claim 1-5.
8. illuminated keyboard as claimed in claim 7, it is characterized in that: this illuminated keyboard also comprises light-emitting component, this light-emitting component is arranged at this light in part side.
9. illuminated keyboard as claimed in claim 7, it is characterized in that: this illuminated keyboard also comprises light-emitting component, and this light guide plate comprises holes, and this light-emitting component is arranged in this holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237392.9A CN103323903B (en) | 2013-06-15 | 2013-06-15 | For light guide plate and the illuminated keyboard of illuminated keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237392.9A CN103323903B (en) | 2013-06-15 | 2013-06-15 | For light guide plate and the illuminated keyboard of illuminated keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103323903A true CN103323903A (en) | 2013-09-25 |
| CN103323903B CN103323903B (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310237392.9A Active CN103323903B (en) | 2013-06-15 | 2013-06-15 | For light guide plate and the illuminated keyboard of illuminated keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103323903B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851729A (en) * | 2015-04-09 | 2015-08-19 | 信阳农林学院 | Computer keyboard |
| CN105023790A (en) * | 2015-07-24 | 2015-11-04 | 东莞市高特电子有限公司 | Mechanical switch light guide and mechanical switch added with light guide |
| CN105990063A (en) * | 2014-12-16 | 2016-10-05 | 群光电子股份有限公司 | Key structure with light-emitting function and thin-film circuit board with light-guiding function |
| CN110208899A (en) * | 2018-08-01 | 2019-09-06 | 光宝电子(广州)有限公司 | Backlight module and input equipment |
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| US20020021383A1 (en) * | 1999-12-15 | 2002-02-21 | Kim Jung-Ki | Liquid crystal display module |
| JP2005285585A (en) * | 2004-03-30 | 2005-10-13 | Nichia Chem Ind Ltd | Plane light-emitting device |
| CN1924664A (en) * | 2005-09-02 | 2007-03-07 | 群康科技(深圳)有限公司 | Back light module unit |
| CN101329036A (en) * | 2007-06-22 | 2008-12-24 | 美蓓亚株式会社 | Spread illuminating apparatus |
| US20090059618A1 (en) * | 2007-08-30 | 2009-03-05 | Akira Onikiri | Lightguide plate and electronic device |
| CN102155692A (en) * | 2011-04-13 | 2011-08-17 | 苏州向隆塑胶有限公司 | Backlight module and assembling method thereof |
| CN202258947U (en) * | 2011-10-08 | 2012-05-30 | 群光电子股份有限公司 | Luminous keyboard device |
| CN102969185A (en) * | 2011-08-31 | 2013-03-13 | 致伸科技股份有限公司 | Illuminant keyboard with light guide pipes |
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2013
- 2013-06-15 CN CN201310237392.9A patent/CN103323903B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021383A1 (en) * | 1999-12-15 | 2002-02-21 | Kim Jung-Ki | Liquid crystal display module |
| JP2005285585A (en) * | 2004-03-30 | 2005-10-13 | Nichia Chem Ind Ltd | Plane light-emitting device |
| CN1924664A (en) * | 2005-09-02 | 2007-03-07 | 群康科技(深圳)有限公司 | Back light module unit |
| CN101329036A (en) * | 2007-06-22 | 2008-12-24 | 美蓓亚株式会社 | Spread illuminating apparatus |
| US20090059618A1 (en) * | 2007-08-30 | 2009-03-05 | Akira Onikiri | Lightguide plate and electronic device |
| CN102155692A (en) * | 2011-04-13 | 2011-08-17 | 苏州向隆塑胶有限公司 | Backlight module and assembling method thereof |
| CN102969185A (en) * | 2011-08-31 | 2013-03-13 | 致伸科技股份有限公司 | Illuminant keyboard with light guide pipes |
| CN202258947U (en) * | 2011-10-08 | 2012-05-30 | 群光电子股份有限公司 | Luminous keyboard device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990063A (en) * | 2014-12-16 | 2016-10-05 | 群光电子股份有限公司 | Key structure with light-emitting function and thin-film circuit board with light-guiding function |
| CN105990063B (en) * | 2014-12-16 | 2018-06-08 | 群光电子股份有限公司 | Key structure with light-emitting function and thin-film circuit board with light-guiding function |
| CN104851729A (en) * | 2015-04-09 | 2015-08-19 | 信阳农林学院 | Computer keyboard |
| CN105023790A (en) * | 2015-07-24 | 2015-11-04 | 东莞市高特电子有限公司 | Mechanical switch light guide and mechanical switch added with light guide |
| CN110208899A (en) * | 2018-08-01 | 2019-09-06 | 光宝电子(广州)有限公司 | Backlight module and input equipment |
| CN110208899B (en) * | 2018-08-01 | 2021-02-26 | 光宝电子(广州)有限公司 | Backlight module and input device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103323903B (en) | 2015-11-18 |
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