CN201795431U - High-aperture ratio light source light guide plate - Google Patents
High-aperture ratio light source light guide plate Download PDFInfo
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- CN201795431U CN201795431U CN2010205239285U CN201020523928U CN201795431U CN 201795431 U CN201795431 U CN 201795431U CN 2010205239285 U CN2010205239285 U CN 2010205239285U CN 201020523928 U CN201020523928 U CN 201020523928U CN 201795431 U CN201795431 U CN 201795431U
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- guide plate
- light guide
- lgp
- reflective
- light source
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Abstract
The utility model relates to a high-aperture ratio light source light guide plate. The light guide plate comprises a light guide plate body, a reflecting surface and a light emitting surface which are combined together, wherein a plurality of reflecting bumps are also formed between the light guide plate body and the reflecting surface of the light guide plate; and the light guide plate body, the reflecting surface of the light guide plate and the reflecting bumps are combined together. Because the plurality of reflecting bumps are also formed between the light guide plate body and the reflecting surface of the light guide plate, the light emitting angle is varied, side light rays can be almost completely reflected when passing through the light guide plate, and the reflected light rays can overflow out of the light emitting surface of the light guide plate, so that the utilization of back light by the light guide plate is effectively improved, the brightness of the back light is improved on the basis of not increasing the cost, and the light guide plate has an obvious technical effect.
Description
Technical field
The utility model relates to a kind of light source LGP, relates in particular to a kind of high aperture light source LGP.This utility model belongs to field of backlights.
Background technology
Along with further developing that optics shows, the application of LGP has obtained increasing popularization.Especially among the TFT LCDs, need high performance LGP especially.In general, the LGP design principle is to change line source into area source, simultaneously, also require backlight high as much as possible through the brightness behind the LGP, can satisfy of the requirement of TFT LCDs like this, therefore, need carry out blast backlight to backlight illumination.
At present, solution to this problem has two kinds nothing but: the one, improve brightness backlight, and the 2nd, add brightness enhancement film.And these two kinds of methods all have its shortcoming separately.At first, brightness regulation backlight is limited, and, improve brightness backlight and increased power consumption, improved the bulk temperature of system, general, this scheme is used less.And increase after the increment film, at first, improved the manufacturing cost of product, secondly, also increased the structural complexity of system, therefore, these two kinds of schemes all have the shortcoming of itself.
Therefore, we have new breakthrough at LGP.Improve the utilization ratio of LGP to back light, i.e. the aperture opening ratio of LGP, being one needs the problem that solves in optics demonstration field.
The utility model content
Technical problem to be solved in the utility model provides a kind of light source LGP with high aperture, and this LGP can make full use of existing back light, and the raising system is to the utilization ratio of back light, and its concrete technical scheme is as following description:
A kind of high aperture light source LGP, comprise, light conducting plate body, reflective surface and exiting surface, light conducting plate body, reflective surface and exiting surface combine, also be provided with a plurality of reflective salient points between light guide plate main body and LGP reflective surface, described light conducting plate body, LGP reflective surface and reflective salient point combine.
Further, preferred construction is that described reflective salient point and reflective surface are transparent integratedization structure.
Further, preferred construction is that described reflective salient point is formed with the projection of spherical shape on the LGP reflective surface.
Further, preferred construction is that described reflective surface is the flour milling structure that has coarse particles and reflective salient point.
Further, preferred construction is that described reflective surface is the matsurface structure that has a plurality of bands and reflective salient point.
Further, preferred construction is that described reflective surface is to have the matsurface structure that a plurality of reflective salient points constitute.
Owing to also be provided with a plurality of reflective salient points between above-mentioned light guide plate main body and the LGP reflective surface, changed rising angle, can make sidelight light by the almost total reflection of LGP time, and make reflection ray overflow the LGP exiting surface, effectively improved LGP to utilization backlight, on the basis that does not increase cost, improve backlight illumination, have tangible technique effect.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, above-mentioned feature and advantage of the present utility model will become apparent and understand easily.
Fig. 1 is the schematic diagram of an embodiment of the utility model high aperture light source LGP reflective surface;
Fig. 2 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface;
Fig. 3 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface;
Fig. 4 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
The concrete technical scheme of the utility model high aperture light source LGP is as following description:
A kind of high aperture light source LGP, comprise, light conducting plate body, reflective surface and exiting surface, light conducting plate body, reflective surface and exiting surface combine, also be provided with a plurality of reflective salient points between light guide plate main body and LGP reflective surface, described light conducting plate body, LGP reflective surface and reflective salient point combine.
Owing to also be provided with a plurality of reflective salient points between above-mentioned light guide plate main body and the LGP reflective surface, changed rising angle, can make sidelight light by the almost total reflection of LGP time, and make reflection ray overflow the LGP exiting surface, effectively improve LGP to utilization backlight, on the basis that does not increase cost, improved backlight illumination.
Fig. 1 is the schematic diagram of an embodiment of the utility model high aperture light source LGP reflective surface.As shown in the figure, the reflective surface of described light source LGP comprises reflective salient point 101 and reflective surface 1, and reflective salient point 101 is formed with the projection of spherical shape on reflective surface.
Fig. 2 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface.As shown in the figure, the reflective surface of described light source LGP comprises reflective salient point 201 and reflective surface 1, and reflective salient point 201 is formed with the projection of spherical shape on reflective surface.
The difference of the embodiment of Fig. 2 and Fig. 1 is, among the embodiment of Fig. 2, the density of reflective salient point 201 is greater than the density of reflective salient point 101, improved reflective salient point area and with the lower surface area ratio.Like this, can improve the reflecting effect of integrated light source LGP fully for back light, and then, the efficient that reflection ray overflows LGP improved.
Fig. 3 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface.As shown in the figure, the reflective surface of described light source LGP has comprised reflective salient point 301 and reflective surface 3, simultaneously, on reflective surface, also increased the tiny site 302 that constitutes by numerous fine particle, since the tiny site that increases played equally the area that increases reflective spot and with the lower surface area ratio, therefore, this kind design can improve the aperture opening ratio of integrated light source LGP.
Fig. 4 is the schematic diagram of another embodiment of the utility model high aperture light source LGP reflective surface.As shown in the figure, the reflective surface of described light source LGP has comprised reflective salient point 401 and reflective surface 4, simultaneously, a plurality of bands 402 on reflective surface, have also been increased, since the band that increases played equally the area that increases reflective spot and with the lower surface area ratio, therefore, this kind design can improve the aperture opening ratio of integrated light source LGP, improves the utilization ratio of whole LGP for light source.
Above-mentioned specific embodiment only is exemplary, and under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in the protection domain of the present utility model.It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of this utility model, are not to be used to limit the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. high aperture light source LGP, comprise, light conducting plate body, reflective surface and exiting surface, light conducting plate body, reflective surface and exiting surface combine, it is characterized in that, also be provided with a plurality of reflective salient points between light guide plate main body and LGP reflective surface, described light conducting plate body, LGP reflective surface and reflective salient point combine.
2. high aperture light source LGP according to claim 1 is characterized in that described reflective salient point and reflective surface are transparent integratedization structure.
3. high aperture light source LGP according to claim 1 and 2 is characterized in that described reflective salient point is formed with the projection of spherical shape on the LGP reflective surface.
4. high aperture light source LGP according to claim 1 and 2 is characterized in that, described reflective surface is the flour milling structure that has coarse particles and reflective salient point.
5. high aperture light source LGP according to claim 1 and 2 is characterized in that, described reflective surface is the matsurface structure that has a plurality of bands and reflective salient point.
6. high aperture light source LGP according to claim 1 and 2 is characterized in that, described reflective surface is to have the matsurface structure that a plurality of reflective salient points constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205239285U CN201795431U (en) | 2010-09-08 | 2010-09-08 | High-aperture ratio light source light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205239285U CN201795431U (en) | 2010-09-08 | 2010-09-08 | High-aperture ratio light source light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795431U true CN201795431U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205239285U Expired - Fee Related CN201795431U (en) | 2010-09-08 | 2010-09-08 | High-aperture ratio light source light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927498A (en) * | 2012-06-01 | 2013-02-13 | 友达光电股份有限公司 | Backlight module |
-
2010
- 2010-09-08 CN CN2010205239285U patent/CN201795431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927498A (en) * | 2012-06-01 | 2013-02-13 | 友达光电股份有限公司 | Backlight module |
| TWI479238B (en) * | 2012-06-01 | 2015-04-01 | Au Optronics Corp | Backlight module |
| CN102927498B (en) * | 2012-06-01 | 2015-09-02 | 友达光电股份有限公司 | Backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20140908 |
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| EXPY | Termination of patent right or utility model |