CN1508570A - Light board device - Google Patents
Light board device Download PDFInfo
- Publication number
- CN1508570A CN1508570A CNA021496463A CN02149646A CN1508570A CN 1508570 A CN1508570 A CN 1508570A CN A021496463 A CNA021496463 A CN A021496463A CN 02149646 A CN02149646 A CN 02149646A CN 1508570 A CN1508570 A CN 1508570A
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- CN
- China
- Prior art keywords
- light
- guide plate
- plate device
- passing board
- light guide
- 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.)
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Abstract
The invention is a device about light board, which comprises a transparent board, several light collecting reflection mirrors and several scattering convex glasses, the transparent board contains a light exit face and a bottom face, the mirrors is on the bottom of the transparent bottom face, the convex glasses are set on the light exit face of transparent board. The light collecting reflection mirrors is correspondent to the scattering convex glasses, it can reflect the light to correspondent convex glass, and the glass scatters the beam to the light board.
Description
[technical field]
The present invention relates to a kind of light guide panel for liquid crystal display device.
[background technology]
Because the liquid crystal itself in the panel of LCD does not possess the characteristics of luminescence, therefore, for reaching display effect, be necessary for panel of LCD one planar light source device is provided, as module backlight, its function is area source abundant to panel of LCD supply briliancy and that be evenly distributed.
Existing module backlight is made of light source, reflecting plate, light guide plate device, diffuser plate and layers of prisms etc., and wherein light guide plate device is the key component in the module backlight, its role is to guide incident light to convert area source to after its scattering and total reflection.Briliancy homogenising distribution more for making this area source is provided with a diffuser plate in light guide plate device exit facet side usually.
On May 11st, 2002, the TaiWan, China patent of bulletin disclosed a kind of light guide plate device 100 No. 487170, as shown in Figure 1.This light guide plate device 100 comprises a light-passing board 110 and a plurality of semi-cylindrical projection 120, this light-passing board 110 comprises a usefulness so that the incidence surface 111 of light beam incident, a usefulness so that the exiting surface 113 of light beam outgoing and one and these exiting surface 113 opposed bottom surface 115, these a plurality of semi-cylindrical projections 120 are positioned at the exiting surface 113 of light-passing board 110, and its top is a cambered surface.
This light guide plate device 100 has a plurality of semi-cylindrical projections 120, thereby it can carry out scattering to the light beam of incident, thereby reaches the effect of diffusion.Though the area source that is obtained by this light guide plate device 100 has uniformity coefficient, briliancy is not enough, thereby the whole optical property of the planar light source device of this light guide plate device is used in influence.
[summary of the invention]
For solving the technical matters of prior art light guide plate device briliancy deficiency, the invention provides a kind of light guide plate device that exceeds brilliant degree that has.
The technical scheme that technical solution problem of the present invention adopts is: a kind of light guide plate device is provided, this light guide plate device comprises a light-passing board, a plurality of light harvesting catoptron and a plurality of diffusion convex lens, this light-passing board comprises a usefulness so that the exiting surface of light beam outgoing and one and this exiting surface opposed bottom surface, these a plurality of light harvesting catoptrons are recessed into and are distributed in the bottom surface of light-passing board from the bottom surface, these a plurality of diffusion convex lens are distributed in the exiting surface of light-passing board, and these a plurality of light harvesting catoptrons are corresponding one by one with these a plurality of diffusion convex lens.
Compared to prior art, the present invention has following advantage: because of light guide plate device of the present invention can be with the difference of beam incident angle degree, the light harvesting catoptron is adjusted to optimal angle, incident beam is reflexed to the diffusion convex lens, form man-to-man reflection, diffusion, thereby make the light beam from the outgoing of light guide plate device have higher briliancy and uniformity coefficient.
[description of drawings]
Fig. 1 is the sectional view of prior art light guide plate device.
Fig. 2 is the sectional view of first kind of embodiment of light guide plate device of the present invention.
Fig. 3 is the diffusion convex lens of light guide plate device shown in Figure 2 and the corresponding relation synoptic diagram of light harvesting catoptron, only shows row diffusion convex lens and a light harvesting catoptron among the figure.
Fig. 4 is the sectional view of second kind of embodiment of light guide plate device of the present invention.
[embodiment]
As shown in Figures 2 and 3, be first kind of embodiment of light guide plate device of the present invention, this light guide plate device 10 comprises a light-passing board 20, a plurality of light harvesting catoptron 30 and a plurality of diffusion convex lens 40.The material of this light-passing board 20 is lucite material or glass, and it is shaped as wedge shape.Light-passing board 20 comprise one in order to the incidence surface 21 of accepting incident beam, a usefulness so that the exiting surface 23 of light beam outgoing and a bottom surface 25, wherein, incidence surface 21 is all crossing with exiting surface 23 and bottom surface 25, exiting surface 23 is oppositely arranged with 25 of bottom surfaces.
A plurality of light harvesting catoptrons 30 are in the 25 recessed light-passing boards 20 of bottom surface, and its regular distribution is in the bottom surface 25 of light-passing board 20.The degree of depth of these a plurality of light harvesting catoptrons 30 is consistent, and its orientation keeps vertical with pointolite (not shown) to the line between its center all the time.The material of these a plurality of light harvesting catoptrons 30 is the acryl material, and its top has sharp-pointed angle, the light beam that it can reflect from incidence surface 21 incidents, and the light beam that makes incident is towards exiting surface 23 outgoing.
A plurality of diffusion convex lens 40 regular distribution are in the exiting surface 23 of light-passing board 20, and keep corresponding one by one with a plurality of light harvesting catoptrons 30 of light-passing board 20 bottom surfaces 25.The material of these a plurality of diffusion convex lens 40 is the acryl material, is shaped as the semicircle sphere, and its radius-of-curvature is along cumulative away from the direction of incidence surface 21.
As shown in Figure 4, be second kind of embodiment of light guide plate device of the present invention, this light guide plate device 11 comprises a light-passing board 60, a plurality of light harvesting catoptron 70 and a plurality of diffusion convex lens 80.The material of this light-passing board 60 is lucite material or glass, and it is shaped as wedge shape.Light-passing board 60 comprises a usefulness so that the incidence surface 61 of light beam incident, a usefulness so that the exiting surface 63 of light beam outgoing and a bottom surface 65, wherein, incidence surface 61 is all crossing with exiting surface 63 and bottom surface 65, exiting surface 63 is oppositely arranged with 65 of bottom surfaces.
A plurality of light harvesting catoptrons 70 are in the 65 recessed light-passing boards 60 of bottom surface, and its regular distribution is in the bottom surface 65 of light-passing board 60.The degree of depth of these a plurality of light harvesting catoptrons 70 is along cumulative away from the direction of incidence surface 61, and its orientation remains with pointolite (not shown) to the line between its center and keeps vertical.The material of these a plurality of light harvesting catoptrons 70 is the acryl material, and the top has sharp-pointed angle, and the light beam that it can reflect from incidence surface 61 incidents makes incident beam towards exiting surface 63 outgoing.
A plurality of diffusion convex lens 80 regular distribution are in the exiting surface 63 of light-passing board 60, and keep corresponding one by one with a plurality of light harvesting catoptrons 70 of light-passing board 60 bottom surfaces 65.The material of these a plurality of diffusion convex lens 80 is the acryl material, is shaped as the semicircle sphere, and its radius-of-curvature is consistent.
Claims (8)
1. light guide plate device, it comprises a light-passing board, this light-passing board comprises a usefulness so that the exiting surface of light beam outgoing and one and this exiting surface opposed bottom surface, it is characterized in that: this light guide plate device further comprises a plurality of light harvesting catoptrons and a plurality of diffusion convex lens, these a plurality of light harvesting catoptrons are in the recessed light-passing board in the bottom surface of light-passing board, and regular distribution is in the bottom surface of light-passing board, these a plurality of diffusion convex lens are distributed in the exiting surface of light-passing board, and these a plurality of light harvesting catoptrons are corresponding one by one with these a plurality of diffusion convex lens.
2. light guide plate device according to claim 1 is characterized in that the wedge shape that is shaped as of this light-passing board.
3. light guide plate device according to claim 1 is characterized in that these a plurality of light harvesting catoptrons are the bottom surfaces that are uniformly distributed in light-passing board, and its degree of depth is consistent.
4. light guide plate device according to claim 1 is characterized in that these a plurality of diffusion convex lens are the exiting surfaces that are uniformly distributed in light-passing board, and its radius-of-curvature is consistent.
5. light guide plate device according to claim 1, the material that it is characterized in that these a plurality of light harvesting catoptrons are the acryl materials.
6. light guide plate device according to claim 1, the material that it is characterized in that these a plurality of diffusion convex lens are the acryl materials.
7. light guide plate device according to claim 3, the radius-of-curvature that it is characterized in that these a plurality of diffusion convex lens is along cumulative away from the direction of incident.
8. light guide plate device according to claim 4, the degree of depth that it is characterized in that these a plurality of light harvesting catoptrons is along cumulative away from the direction of incident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149646 CN1266411C (en) | 2002-12-14 | 2002-12-14 | Light board device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149646 CN1266411C (en) | 2002-12-14 | 2002-12-14 | Light board device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508570A true CN1508570A (en) | 2004-06-30 |
| CN1266411C CN1266411C (en) | 2006-07-26 |
Family
ID=34233724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02149646 Expired - Fee Related CN1266411C (en) | 2002-12-14 | 2002-12-14 | Light board device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1266411C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409036C (en) * | 2005-05-27 | 2008-08-06 | 财团法人工业技术研究院 | Optical assembly and light source device |
| CN100529820C (en) * | 2004-12-17 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Lens module and digital camera module therewith |
| CN102033253A (en) * | 2009-10-02 | 2011-04-27 | 吉罗企划股份有限公司 | Optical unit and backlight unit using the same |
| CN102374390A (en) * | 2010-08-09 | 2012-03-14 | 东莞万士达液晶显示器有限公司 | Columnar luminous module |
| CN102098409B (en) * | 2009-12-10 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Contact image sensing module |
| CN104515029A (en) * | 2013-09-26 | 2015-04-15 | 展晶科技(深圳)有限公司 | Lateral type backlight module |
| CN105093397A (en) * | 2013-05-03 | 2015-11-25 | 青岛海信电器股份有限公司 | Side light type backlight module and electronic equipment |
| CN107153299A (en) * | 2017-06-08 | 2017-09-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2018036207A1 (en) * | 2016-08-25 | 2018-03-01 | 中兴通讯股份有限公司 | Light guide plate and light-emitting structure |
| WO2018040951A1 (en) * | 2016-08-30 | 2018-03-08 | 上海坤雪光电科技有限公司 | Light-controlling light guide body and illumination emitters produced using same |
-
2002
- 2002-12-14 CN CN 02149646 patent/CN1266411C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529820C (en) * | 2004-12-17 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Lens module and digital camera module therewith |
| CN100409036C (en) * | 2005-05-27 | 2008-08-06 | 财团法人工业技术研究院 | Optical assembly and light source device |
| CN102033253A (en) * | 2009-10-02 | 2011-04-27 | 吉罗企划股份有限公司 | Optical unit and backlight unit using the same |
| CN102033253B (en) * | 2009-10-02 | 2013-06-12 | 株式会社Jiro企业策划 | Optical unit and backlight unit using the same |
| CN102098409B (en) * | 2009-12-10 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Contact image sensing module |
| CN102374390A (en) * | 2010-08-09 | 2012-03-14 | 东莞万士达液晶显示器有限公司 | Columnar luminous module |
| CN102374390B (en) * | 2010-08-09 | 2014-05-07 | 东莞万士达液晶显示器有限公司 | Columnar luminous module |
| CN105093397A (en) * | 2013-05-03 | 2015-11-25 | 青岛海信电器股份有限公司 | Side light type backlight module and electronic equipment |
| CN104515029A (en) * | 2013-09-26 | 2015-04-15 | 展晶科技(深圳)有限公司 | Lateral type backlight module |
| WO2018036207A1 (en) * | 2016-08-25 | 2018-03-01 | 中兴通讯股份有限公司 | Light guide plate and light-emitting structure |
| WO2018040951A1 (en) * | 2016-08-30 | 2018-03-08 | 上海坤雪光电科技有限公司 | Light-controlling light guide body and illumination emitters produced using same |
| CN107153299A (en) * | 2017-06-08 | 2017-09-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1266411C (en) | 2006-07-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20060726 Termination date: 20131214 |