CN103105640A - Light guide plate - Google Patents
Light guide plate Download PDFInfo
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- CN103105640A CN103105640A CN2011103593185A CN201110359318A CN103105640A CN 103105640 A CN103105640 A CN 103105640A CN 2011103593185 A CN2011103593185 A CN 2011103593185A CN 201110359318 A CN201110359318 A CN 201110359318A CN 103105640 A CN103105640 A CN 103105640A
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- plane
- incidence
- light guide
- guide plate
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Abstract
The invention provides a light guide plate which comprises an incidence plane, an emergent plane which is connected with the incidence plane and a bottom plane which is opposite to the emergent plane. A plurality of lattice points are formed in the bottom plane, the size of the lattice points is equal, the density of the lattice points enlarges gradually from the direction closing to the incidence plane to the direction far from the incidence plane, and proportional range of lateral dimension to longitudinal direction of each lattice point is from 7.8 to 1 to 12.9 to 1. According to test results, chromatic aberration of light from the direction closing to the incidence plane to the direction far from the incidence plane can be reduced effectively, and light guide quality of the light guide plate is improved.
Description
Technical field
The present invention relates to a kind of light guide plate.
Background technology
Light guide plate generally comprises exiting surface and bottom surface relative with this exiting surface that an incidence surface, and this incidence surface connect.Light after this incidence surface incident is by this bottom reflection from this exiting surface outgoing.For making the light uniform, existing people proposes to form a plurality of sites (miniature projection or the depression of net distribution) scattered beam so that the light uniform on the bottom surface, even someone proposes along reducing gradually and the size of site should increase gradually to the density away from the direction site of this plane of incidence near this plane of incidence, to strengthen the scattering of the light that just enters this plane of incidence is weakened to the scattering away from the light of this plane of incidence, further make the light uniform.Yet, so arrange, will cause affecting the leaded light quality of this light guide plate along differing greatly to the aberration away from the direction light of this plane of incidence near this plane of incidence.
Summary of the invention
In view of this, be necessary to provide a kind of light guide plate that improves the leaded light quality.
A kind of light guide plate, it comprises a plane of incidence, exit facet and a bottom surface relative with this exit facet that connects this plane of incidence.This bottom surface is formed with a plurality of sites.Each site big or small identical, and along increasing gradually to the density away from direction this site of this plane of incidence near this plane of incidence, the lateral dimension of each site and the proportional range of longitudinal size are 7.8:1 to 12.9:1.
The experiment proved that, so arrange, can effectively dwindle along the aberration difference that arrives near this plane of incidence away from the direction light of this plane of incidence, improve the leaded light quality of this light guide plate.Certainly, the setting of this site also can make light outgoing equably.
Description of drawings
Fig. 1 is the schematic perspective view of the light guide plate of better embodiment of the present invention.
The main element symbol description
| Light guide plate | 10 |
| The plane of incidence | 100 |
| Exit facet | 200 |
| The bottom surface | 300 |
| The site | 400 |
| Diffusion barrier | 500 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1, the light guide plate 10 of better embodiment of the present invention comprises a plane of incidence 100, exit facet 200 and a bottom surface 300 relative with this exit facet 200 that connects this plane of incidence 100.This bottom surface 300 is formed with a plurality of sites 400.Each site 400 big or small identical, and along increasing gradually to the density away from direction this site 400 of this plane of incidence near this plane of incidence, the proportional range of the lateral dimension of each site 400 (namely along the size that is parallel to the direction of this bottom surface 300) and longitudinal size (namely the edge is perpendicular to the size of the direction of this bottom surface 300) is 7.8:1 to 12.9:1.
The experiment proved that, so arrange, can effectively dwindle the aberration difference that arrives away from the direction light of this plane of incidence 100 along near this plane of incidence 100, improve the leaded light quality of this light guide plate 10.Certainly, the setting of this site 400 also can make light outgoing equably.
This site 400 can be projection or depression.In present embodiment, these a plurality of sites 400 are arranged into multiple row along the direction that is parallel to this plane of incidence 100, along increasing gradually to the number away from the every row of the direction of this plane of incidence 100 site 400 near this plane of incidence 100.Preferably, along the direction that arrives away from this plane of incidence 100 near this plane of incidence 100, adjacent two gaps that are listed as between site 400 dwindle gradually.
Preferably, when the ratio of the lateral dimension of each site 400 and longitudinal size at 10:1.
In addition, through experimental verification, close this plane of incidence 100 in the less edge of the lateral dimension of each site 400 or longitudinal size arrives away from the aberration difference of the direction light of this plane of incidence 100 less.Concrete, please join table 1-2, in the situation that fix the lateral dimension of this site 400, dwindle the longitudinal size of this site 400, find along diminishing to the aberration difference away from the direction light of this plane of incidence 100 near this plane of incidence 100.Please join table 3-4, in the situation that fix the longitudinal size of this site 400, dwindle the lateral dimension of this site 400, find along also diminishing to the aberration difference away from the direction light of this plane of incidence 100 near this plane of incidence 100.Certainly, for other factors of balance, as working (machining) efficiency etc., the lateral dimension of this site 400 and longitudinal size can not dwindle simply, and preferably, the lateral dimension scope of this site 400 should be at 35 ~ 45um, and the longitudinal size scope should be at 3.5 ~ 4.5um.
Table 1
| Size (um) | The depth/height (um) | Near the aberration difference between the center of this plane of incidence place and this bottom surface | The center of this bottom surface and away from the aberration difference between this plane of incidence place |
| 61 | 5.8 | 0.0026 | 0.0062 |
| 61 | 8 | 0.0026 | 0.0051 |
Table 2
| Size (um) | The depth/height (um) | Near the aberration difference between the center of this plane of incidence place and this bottom surface | The center of this bottom surface and away from the aberration difference between this plane of incidence place |
| 41 | 6.6 | 0.0036 | 0.0072 |
| 41 | 5 | 0.0005 | 0.0034 |
Table 3
| Size (um) | The depth/height (um) | Near the aberration difference between the center of this plane of incidence place and this bottom surface | The center of this bottom surface and away from the aberration difference between this plane of incidence place |
| 61 | 5.8 | 0.0026 | 0.0062 |
| 54 | 5.8 | 0.0017 | 0.0043 |
Table 4
| Size (um) | The depth/height (um) | Near the aberration difference between the center of this plane of incidence place and this bottom surface | The center of this bottom surface and away from the aberration difference between this plane of incidence place |
| 61 | 5 | 0.0026 | 0.0051 |
| 41 | 5 | 0.0005 | 0.0034 |
In addition, in order further to make the light uniform, this light guide plate 10 can also comprise a diffusion barrier 500 that is arranged on this exit facet 200.
In a word; those skilled in the art will be appreciated that; above embodiment is only that the present invention is described; and be not to be used as limitation of the invention; as long as within connotation scope of the present invention, the appropriate change that above embodiment is done and change all drop on the scope of protection of present invention within.
Claims (8)
1. light guide plate, it comprises a plane of incidence, exit facet and a bottom surface relative with this exit facet that connects this plane of incidence; This bottom surface is formed with a plurality of sites; Each site big or small identical, and along increasing gradually to the density away from direction this site of this plane of incidence near this plane of incidence, the lateral dimension of each site and the proportional range of longitudinal size are 7.8:1 to 12.9:1.
2. light guide plate as claimed in claim 1, is characterized in that, these a plurality of sites are projection or depression.
3. light guide plate as claimed in claim 1, is characterized in that, these a plurality of sites are arranged into multiple row along the direction that is parallel to this plane of incidence.
4. light guide plate as claimed in claim 3, is characterized in that, along increasing gradually to the number away from the every row of the direction of this plane of incidence sites near this plane of incidence.
5. light guide plate as claimed in claim 4, is characterized in that, and is preferred, and along the direction that arrives near this plane of incidence away from this plane of incidence, adjacent two gaps that are listed as between the site dwindle gradually.
6. light guide plate as claimed in claim 1, is characterized in that, the lateral dimension of each site and the ratio of longitudinal size are 10:1.
7. light guide plate as claimed in claim 1, is characterized in that, each site the lateral dimension scope at 35 ~ 45um, the longitudinal size scope is at 3.5 ~ 4.5um.
8. light guide plate as claimed in claim 1, is characterized in that, this light guide plate also comprises a diffusion barrier that is arranged on this exit facet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103593185A CN103105640A (en) | 2011-11-14 | 2011-11-14 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103593185A CN103105640A (en) | 2011-11-14 | 2011-11-14 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103105640A true CN103105640A (en) | 2013-05-15 |
Family
ID=48313629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103593185A Pending CN103105640A (en) | 2011-11-14 | 2011-11-14 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103105640A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675988A (en) * | 2013-12-12 | 2014-03-26 | 北京京东方光电科技有限公司 | Light guide plate, manufacturing method thereof, backlight source module and display device |
| WO2015018102A1 (en) * | 2013-08-07 | 2015-02-12 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN108055863A (en) * | 2015-09-17 | 2018-05-18 | Zkw集团有限责任公司 | In pixel light optical mode light source arrangement in the block |
| CN108873154A (en) * | 2018-08-10 | 2018-11-23 | 江苏达伦电子股份有限公司 | A kind of the network point distribution design method and light guide plate of light guide plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050088838A1 (en) * | 2003-10-24 | 2005-04-28 | Hon Hai Precision Industry Co., Ltd. | Light guiding device with two opposite light emitting surfaces and backlight module using the same |
| JP2005347010A (en) * | 2004-06-01 | 2005-12-15 | Minebea Co Ltd | Planar lighting device |
| CN201060283Y (en) * | 2007-07-24 | 2008-05-14 | 上海晨兴电子科技有限公司 | Light plate |
| CN101216573A (en) * | 2008-01-17 | 2008-07-09 | 陈林森 | Combined light guide board and preparation method |
| CN101963313A (en) * | 2010-08-30 | 2011-02-02 | 上海交通大学 | One-dimensional edge light dynamic backlight for liquid crystal display |
-
2011
- 2011-11-14 CN CN2011103593185A patent/CN103105640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050088838A1 (en) * | 2003-10-24 | 2005-04-28 | Hon Hai Precision Industry Co., Ltd. | Light guiding device with two opposite light emitting surfaces and backlight module using the same |
| JP2005347010A (en) * | 2004-06-01 | 2005-12-15 | Minebea Co Ltd | Planar lighting device |
| CN201060283Y (en) * | 2007-07-24 | 2008-05-14 | 上海晨兴电子科技有限公司 | Light plate |
| CN101216573A (en) * | 2008-01-17 | 2008-07-09 | 陈林森 | Combined light guide board and preparation method |
| CN101963313A (en) * | 2010-08-30 | 2011-02-02 | 上海交通大学 | One-dimensional edge light dynamic backlight for liquid crystal display |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015018102A1 (en) * | 2013-08-07 | 2015-02-12 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN103675988A (en) * | 2013-12-12 | 2014-03-26 | 北京京东方光电科技有限公司 | Light guide plate, manufacturing method thereof, backlight source module and display device |
| CN108055863A (en) * | 2015-09-17 | 2018-05-18 | Zkw集团有限责任公司 | In pixel light optical mode light source arrangement in the block |
| CN108873154A (en) * | 2018-08-10 | 2018-11-23 | 江苏达伦电子股份有限公司 | A kind of the network point distribution design method and light guide plate of light guide plate |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20130515 |