CN103968294A - Backlight module and light guide plate thereof - Google Patents
Backlight module and light guide plate thereof Download PDFInfo
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- CN103968294A CN103968294A CN201310038026.0A CN201310038026A CN103968294A CN 103968294 A CN103968294 A CN 103968294A CN 201310038026 A CN201310038026 A CN 201310038026A CN 103968294 A CN103968294 A CN 103968294A
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- lgp
- diffusion structure
- backlight module
- incidence surface
- light
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Abstract
The invention relates to a backlight module which comprises a light guide plate and a plurality of light sources, wherein the light guide plate comprises an incident surface; the plurality of light sources face to the incident surface; a diffusion structure is arranged on the incident surface; the incident surface is an atomization surface and is provided with irregularly distributed micronet points; the density of the micronet points is higher than that of the diffusion structure; the micronet points are arranged on the diffusion structure. The invention further relates to the light guide plate.
Description
Technical field
The present invention relates to the LGP using in a kind of backlight module and a kind of this backlight module.
Background technology
[the checking in full] LGP using in backlight module generally comprises a mixed light district and Zhi Fei mixed light adjacent with a mixed light district district.The light that light source sends first fully mixes each other in mixed light district, thereby can be uniformly distributed in the time that light arrives non-mixed light district.In order to shorten the length in mixed light district, LGP is generally formed with diffusion structure to increase the incidence angle of incident light on the incidence surface of light source.But diffusion structure is generally regular distribution, it can only increase the incidence angle of incident light on certain specific direction, and can not increase the incidence angle of incident light outside this specific direction, thereby causes the length in mixed light district effectively not shortened.
Summary of the invention
In view of this, be necessary to provide one can overcome the backlight module of the problems referred to above.
In view of this, be also necessary to provide one can overcome the LGP of the problems referred to above.
A kind of backlight module, comprises a LGP and multiple light source, and this LGP comprises an incidence surface, and the plurality of surface of light source arranges to this incidence surface.On this incidence surface, be provided with diffusion structure, this incidence surface is atomization face, and is provided with the microgrid point that is random distribution, and the density of this microgrid point is greater than the density of this diffusion structure.This microgrid point is positioned on this diffusion structure.
A kind of LGP, comprises an incidence surface, on this incidence surface, is provided with diffusion structure.This incidence surface is atomization face, and is provided with the microgrid point that is random distribution, and the density of this microgrid point is greater than the density of this diffusion structure.This microgrid point is positioned on this diffusion structure.
With respect to prior art, the present invention's incidence surface is set to atomization face, thereby makes light to all directions scattering, promotes being uniformly distributed of light, can effectively shorten the length in the mixed light district of LGP.
Brief description of the drawings
Fig. 1 is the structural representation of the backlight module of first embodiment of the invention.
Fig. 2 is the elevational schematic view of the backlight module shown in Fig. 1.
Fig. 3 is the part schematic perspective view of the LGP of the backlight module shown in Fig. 1.
Fig. 4 is the part schematic perspective view of the LGP of second embodiment of the invention.
Main element symbol description
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1, Fig. 2, the backlight module 100 that first embodiment of the invention provides, it comprises a LGP 10 and multiple light source 20.
This LGP 10 is roughly rectangle tabular, comprises that an exiting surface 11, a bottom surface opposing with this exiting surface 11 13, are connected the incidence surface 15 and one and the opposing side 17 of incidence surface 15 of this exiting surface 11 and this bottom surface 13.The plurality of light source 20 arranges towards this incidence surface 15 at each interval.In the present embodiment, the plurality of light source 20 is light emitting diode (LED).
Except said modules, this backlight module 100 also can comprise the (not shown) such as reflector plate, diffusion sheet, prismatic lens, brightness enhancement film, wherein, reflector plate is close to the bottom surface 13 of this LGP 10, diffusion sheet, prismatic lens, brightness enhancement film successively superposition on the exiting surface 11 of this LGP 10.Because said modules is well-known to those skilled in the art, be not repeated at this.
This LGP 10 is divided into the non-mixed light district 19 that mixed light district 18 that contiguous this light source 20 arranges and relative this mixed light district 18 arrange away from this light source 20.The light that light source 20 sends enters LGP 10 and propagates towards the direction of side 17 from incidence surface 15.Wherein, in mixed light district 18, light fully mixes each other, thereby reaches and be uniformly distributed in the time arriving non-mixed light district 19.
On the bottom surface 13 of this LGP 10, can also be formed with site 130, make light penetrate LGP 10 from exiting surface 11 thereby the effect of site 130 is the propagation angle that change light.
Refer to Fig. 3, in order to shorten the length in mixed light district 18, on incidence surface 15, be formed with diffusion structure 150.In the present embodiment, diffusion structure 150 is the V-type projection of parallel to each other and continuous distributed.The bearing of trend of this V-type projection 150 is perpendicular to this exiting surface 11.This V-type projection 150 can increase the incidence angle of the light that light source 20 sends, thereby impels light to the regional spread between every two light sources 20.
In order further to shorten the length in mixed light district 18, incidence surface 15 is further set for atomization face, on incidence surface 15, comprise multiple microgrid points 151 that are random distribution.This microgrid point 151 is positioned on this diffusion structure 150.In the present embodiment, this microgrid point 151 is micro-protrusions.The density (being the number of this microgrid point 151 in unit are) of this microgrid point 151 is greater than the density (being the number of this V-type projection 150 in unit are) of this V-type projection 150.The surface roughness of incidence surface 15 is larger, and the density of microgrid point 151 is higher.In the present embodiment, the surface roughness of incidence surface 15 is 0.5-0.7 micron.Because this microgrid point 151 is random distributions, therefore this microgrid point 151 can impel light to all directions scattering, thereby promotes being uniformly distributed of light, shortens the length in mixed light district 18.
In the present embodiment, this microgrid point 151 is by obtaining to the mode of incidence surface 15 sandblast atomizations.
Refer to Fig. 4, it has disclosed the LGP 30 that second embodiment of the invention provides, LGP 30 is that the diffusion structure 350 arranging on the incidence surface 35 of LGP 30 is semicircle stud bump spaced apart and parallel to each other with the difference of LGP 10, the exiting surface 31 of vertical this LGP 30 of bearing of trend of this semicircle stud bump 350.
In a word; those skilled in the art will be appreciated that; above embodiment is only for the present invention is described; and be not used as limitation of the invention; as long as within connotation scope of the present invention, within the appropriate change that above embodiment is done and variation all drop on the scope of protection of present invention.
Claims (10)
1. a backlight module, comprise a LGP and multiple light source, this LGP comprises an incidence surface, the plurality of surface of light source arranges to this incidence surface, it is characterized in that: on this incidence surface, be provided with diffusion structure, this incidence surface is atomization face, and be provided with the microgrid point that is random distribution, the density of this microgrid point is greater than the density of this diffusion structure, and this microgrid point is positioned on this diffusion structure.
2. backlight module as claimed in claim 1, is characterized in that: this diffusion structure is the V-type projection of parallel to each other and continuous distributed.
3. backlight module as claimed in claim 1, is characterized in that: this diffusion structure is semicircle stud bump parallel to each other and spaced apart.
4. backlight module as claimed in claim 1, is characterized in that: this atomization face is obtained by sandblast processing.
5. backlight module as claimed in claim 1, is characterized in that: the surface roughness of this atomization face is 0.5-0.7 micron.
6. a LGP, comprises an incidence surface, and its improvement is: on this incidence surface, be provided with diffusion structure, this incidence surface is atomization face, and be provided with the microgrid point that is random distribution, and the density of this microgrid point is greater than the density of this diffusion structure, and this microgrid point is positioned on this diffusion structure.
7. LGP as claimed in claim 6, is characterized in that: this diffusion structure is the V-type projection of parallel to each other and continuous distributed.
8. LGP as claimed in claim 6, is characterized in that: this diffusion structure is semicircle stud bump parallel to each other and spaced apart.
9. LGP as claimed in claim 6, is characterized in that: this atomization face is obtained by sandblast processing.
10. LGP as claimed in claim 6, is characterized in that: the surface roughness of this atomization face is 0.5-0.7 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038026.0A CN103968294A (en) | 2013-01-31 | 2013-01-31 | Backlight module and light guide plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038026.0A CN103968294A (en) | 2013-01-31 | 2013-01-31 | Backlight module and light guide plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103968294A true CN103968294A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310038026.0A Pending CN103968294A (en) | 2013-01-31 | 2013-01-31 | Backlight module and light guide plate thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103968294A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249342A (en) * | 2016-09-27 | 2016-12-21 | 上海向隆电子科技有限公司 | Light guide plate and the backlight module thereof of hot spot phenomenon can be eliminated |
| CN106257316A (en) * | 2015-06-19 | 2016-12-28 | 高智股份公司 | Composite pattern light guide plate and manufacture method thereof |
| CN111427213A (en) * | 2020-03-17 | 2020-07-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
-
2013
- 2013-01-31 CN CN201310038026.0A patent/CN103968294A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257316A (en) * | 2015-06-19 | 2016-12-28 | 高智股份公司 | Composite pattern light guide plate and manufacture method thereof |
| CN106257316B (en) * | 2015-06-19 | 2020-06-16 | 高一智股份公司 | Composite pattern light guide plate and manufacturing method thereof |
| CN106249342A (en) * | 2016-09-27 | 2016-12-21 | 上海向隆电子科技有限公司 | Light guide plate and the backlight module thereof of hot spot phenomenon can be eliminated |
| CN111427213A (en) * | 2020-03-17 | 2020-07-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |