CN101907246A - Back light module and liquid crystal display device - Google Patents
Back light module and liquid crystal display device Download PDFInfo
- Publication number
- CN101907246A CN101907246A CN2009101459127A CN200910145912A CN101907246A CN 101907246 A CN101907246 A CN 101907246A CN 2009101459127 A CN2009101459127 A CN 2009101459127A CN 200910145912 A CN200910145912 A CN 200910145912A CN 101907246 A CN101907246 A CN 101907246A
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- module backlight
- reflector plate
- plate
- optical element
- lgp
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Abstract
The invention provides a back light module and a liquid crystal display device. The back light module comprises a light guide plate, a reflector plate and a frame body, wherein the light guide plate is provided with a plurality of positioning columns; the reflector plate is provided with a plurality of second positioning holes which correspond to the positioning columns; and the frame body is provided with a plurality of first positioning holes which respectively correspond to and match with the positioning columns and the second positioning holes to fix the light guide plate and the reflector plate. The invention simplifies the manufacturing process of a back plate and reduce the probability of impurity particles entering the back light module from the bottom surface of the back plate by arranging the positioning columns on the light guide plate, correspondingly arranging the positioning holes on the back plate and the reflector plate and fixing the light guide plate and the reflector plate in a matching way.
Description
Technical field
The present invention relates in particular to a kind of module backlight and liquid crystal indicator that utilizes reference column to cooperate fixing optical element with locating hole about a kind of module backlight.
Background technology
Module backlight is the key part and component of LCD, can provide brightness sufficient and uniform light source by module backlight, and display panels can normally be shown.For the sufficient light source brightness that makes module backlight or evenly, need in module backlight, increase optical element usually and improve, as LGP, brightening piece, reflector plate or diffuser plate etc.
See also Fig. 1, Fig. 1 shows the perspective exploded view of module backlight of the prior art, and module 1 backlight comprises glue frame 2, LGP 3, reflector plate 4, light source 5 and backboard 6.When module 1 backlight is assembled, need location LGP 3 and reflector plate 4 earlier, assemble glue frame 2 afterwards again and fixed.In the prior art, backboard 6 bottom surfaces designs has a plurality of tongue piece 7 as detent mechanism, and the holes 8 that these tongue pieces 7 need break large-size from backboard 6 bottom surfaces forms.LGP 3 and reflector plate 4 are placed on the backboard 6 by tongue piece 7 and locate the moving and rotatablely moving in the horizontal direction of LGP 3 and reflector plate 4.All have a plurality of fixture (not shown)s at glue frame 2 and backboard 6 sides in addition, it is fixing wherein with LGP 3, light source 5 and reflector plate 4 etc. to be fitted to each other.But reach the fixing horizontal direction and avoid rotation, need three tongue piece 7 mechanisms at least, and tongue piece 7 design need contain holes and folding tongue piece processing procedure at the processing procedure of backboard 6, processing procedure is comparatively complicated; Tongue piece 7 structures need to break the holes of large-size on backboard in addition, and this can make granule foreign be increased by the probability that backboard 6 enters module 1 backlight, and cause the defective in the demonstration.
Summary of the invention
In view of this, the objective of the invention is to solve the orientation problem of optical element, and avoid impurity particle to enter module backlight, and simplify the backboard processing procedure by the backboard bottom surface.
For reaching above-mentioned purpose, the invention provides a kind of module backlight, it is characterized in that this module backlight comprises optical element and framework.Have a plurality of reference columns on this optical element, have a plurality of first locating holes on this framework, corresponding respectively and cooperate with those reference columns and to fix this optical element.
As optional technical scheme, this optical element is a LGP.
As optional technical scheme, this module backlight also comprises reflector plate, has a plurality of second locating holes on this reflector plate, and is corresponding respectively and cooperate with those reference columns and those first locating holes and to fix this reflector plate.
As optional technical scheme, this framework is a backboard.
As optional technical scheme, the side of this optical element has outstanding location division, and this reference column is positioned on this location division; The side of this framework has protuberance, and this first locating hole is positioned on this protuberance.
As optional technical scheme, this first locating hole and this second locating hole be shaped as circle, this reference column is a cylinder.
The present invention also provides a kind of liquid crystal indicator, and this liquid crystal indicator comprises display panels and aforesaid module backlight.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Fig. 1 shows the perspective exploded view of module backlight of the prior art;
Fig. 2 shows the perspective exploded view according to module backlight of the present invention;
Fig. 3 shows the schematic diagram according to framework of the present invention.
The specific embodiment
See also Fig. 2 and Fig. 3, Fig. 2 shows the perspective exploded view according to module backlight of the present invention, and Fig. 3 shows the schematic diagram according to framework of the present invention.Liquid crystal indicator of the present invention comprises display panels and module backlight, both stacked settings.Module 10 backlight comprises optical element 11 and framework 12, have a plurality of reference columns 13 on the optical element 11, and optical element 11 for example is a LGP, or diffusion sheet etc., is that example describes with the LGP in the present embodiment.Have a plurality of first locating holes 14 on the framework 12, distinguish corresponding a plurality of reference columns 13, and cooperate lightguide plate fixing 11 with these reference columns 13.Framework 12 for example is a backboard.Module 10 backlight also comprises reflector plate 15, have a plurality of second locating holes 16 on the reflector plate 15, distinguish corresponding a plurality of reference columns 13, and cooperate fixation reflex sheet 15, thereby LGP 11 and reflector plate 15 are fixed on the backboard 12 with these reference columns 13 and these first locating holes 14.And, also can be provided with outstanding location division at the side of LGP 11, reference column 13 then is positioned on the location division; The corresponding protuberance that also is provided with of the side of framework 12,14 of first locating holes are positioned on the protuberance.Certain module backlight 10 also includes (not shown)s such as light source, glue frame and blooming piece, and reflector plate 15, light source and LGP 11 are arranged in the framework 12, and light source is positioned at the side of LGP 11.
During assembling, reference column 13 is at first run through second locating hole 16, run through first locating hole 14 again and can finish assembling, make LGP 11 and reflector plate 15 very convenient with framework or backboard 12 location assemblings.And because LGP 11 is made the precision height and is the rigidity material, be difficult for producing deformation, backboard 12 also is the rigidity material in addition, also be difficult for deformation, reference column 13 fixation reflex sheets 15 and backboard 12 by LGP 11 can improve fixed precision, accurately locate LGP 11 and reflector plate 15.
In addition, be that to have four reference columns 13 with LGP 11 be example in the present embodiment, four reference columns 13 are distributed in four corners of LGP 11 respectively.Corresponding reflector plate 15 also has four second locating holes 16, be distributed in four corners of reflector plate 15 respectively, and backboard 12 also has four first locating holes 14, is distributed in four corners of backboard 12 respectively.But in the reality,, can reach locating effect with more a spot of detent mechanism so because the present invention locatees LGP 11 and reflector plate 15 in the mode of LGP 11 protruding positioning poles 13.For example in the present invention, protruding positioning pole 13 mechanism can limit the displacement in direction parallel plane with it of LGP 11 and reflector plate 15, and two protruding positioning pole 13 mechanisms can also limit by swing offset.
In addition, in the present embodiment, the shape of first locating hole 14 and second locating hole 16 for example is circular, and corresponding reference column 13 is a cylinder.But the reference column 13 of above-mentioned liquid crystal indicator is not limited to cylinder, can also be polygon prism; And corresponding first locating hole 14 and second locating hole 16 also are not limited to circle, also can be polygon.And owing to the size in hole can be controlled well, for example its diameter can lessly be easy to realize on processing procedure, promptly the size of first locating hole 14 and second locating hole 16 only need satisfy and cooperates the size of reference column 13 to get final product, and the size of locating hole reduces effectively to reduce the probability that impurity particle enters module 10 backlight by backboard 12 bottom surfaces; And 12 of backboards need holes not need to make tongue piece 7 for example of the prior art, can simplify the processing procedure of making backboard.
In sum, utilization of the present invention is provided with reference column on LGP, and correspondence is being provided with locating hole on the backboard and on the reflector plate, cooperates lightguide plate fixing and reflector plate, simplifies the backboard processing procedure and reduces impurity particle is entered module backlight by the backboard bottom surface probability.
By the detailed description of the above specific embodiment, be to wish to know more to describe feature of the present invention and spirit, and be not to come claim scope of the present invention is limited with the above-mentioned disclosed specific embodiment.On the contrary, its objective is that hope can contain in being arranged in of various changes and the tool equality claim scope of the present invention.Therefore, claim scope of the present invention should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (7)
1. a module backlight is characterized in that this module backlight comprises
Optical element has a plurality of reference columns on this optical element; And
Framework has a plurality of first locating holes on this framework, corresponding respectively and cooperate with those reference columns and to fix this optical element.
2. module backlight as claimed in claim 1 is characterized in that this optical element is a LGP.
3. module backlight as claimed in claim 2 is characterized in that this module backlight also comprises reflector plate, has a plurality of second locating holes on this reflector plate, and is corresponding respectively and cooperate with those reference columns and those first locating holes and to fix this reflector plate.
4. module backlight as claimed in claim 1 is characterized in that this framework is a backboard.
5. module backlight as claimed in claim 1 is characterized in that the side of this optical element has outstanding location division, and this reference column is positioned on this location division; The side of this framework has protuberance, and this first locating hole is positioned on this protuberance.
6. module backlight as claimed in claim 3 is characterized in that the circle that is shaped as of this first locating hole and this second locating hole, and this reference column is a cylinder.
7. liquid crystal indicator is characterized in that this liquid crystal indicator comprises display panels and as any described module backlight of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101459127A CN101907246A (en) | 2009-06-03 | 2009-06-03 | Back light module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101459127A CN101907246A (en) | 2009-06-03 | 2009-06-03 | Back light module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101907246A true CN101907246A (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101459127A Pending CN101907246A (en) | 2009-06-03 | 2009-06-03 | Back light module and liquid crystal display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101907246A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192448A (en) * | 2010-12-30 | 2011-09-21 | 友达光电股份有限公司 | Backlight module |
| CN103392092A (en) * | 2011-03-18 | 2013-11-13 | 夏普株式会社 | Illumination device, display device, and television reception device |
| WO2018157603A1 (en) * | 2017-03-01 | 2018-09-07 | 京东方科技集团股份有限公司 | Light guide plate, backlight source, and display device |
| CN109945409A (en) * | 2019-04-18 | 2019-06-28 | 广东美的暖通设备有限公司 | Line control machine |
| CN111679505A (en) * | 2020-06-28 | 2020-09-18 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display |
| CN114415425A (en) * | 2022-02-16 | 2022-04-29 | 深圳市瀚达美电子有限公司 | Vehicle-mounted backlight module without middle frame |
-
2009
- 2009-06-03 CN CN2009101459127A patent/CN101907246A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192448A (en) * | 2010-12-30 | 2011-09-21 | 友达光电股份有限公司 | Backlight module |
| CN102192448B (en) * | 2010-12-30 | 2013-05-08 | 友达光电股份有限公司 | Backlight module |
| CN103392092A (en) * | 2011-03-18 | 2013-11-13 | 夏普株式会社 | Illumination device, display device, and television reception device |
| CN103392092B (en) * | 2011-03-18 | 2015-08-12 | 夏普株式会社 | Lighting device, display unit, radiovisor |
| WO2018157603A1 (en) * | 2017-03-01 | 2018-09-07 | 京东方科技集团股份有限公司 | Light guide plate, backlight source, and display device |
| CN109945409A (en) * | 2019-04-18 | 2019-06-28 | 广东美的暖通设备有限公司 | Line control machine |
| CN111679505A (en) * | 2020-06-28 | 2020-09-18 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display |
| CN114415425A (en) * | 2022-02-16 | 2022-04-29 | 深圳市瀚达美电子有限公司 | Vehicle-mounted backlight module without middle frame |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |