CN101476689B - Back light module unit - Google Patents
Back light module unit Download PDFInfo
- Publication number
- CN101476689B CN101476689B CN2009100454747A CN200910045474A CN101476689B CN 101476689 B CN101476689 B CN 101476689B CN 2009100454747 A CN2009100454747 A CN 2009100454747A CN 200910045474 A CN200910045474 A CN 200910045474A CN 101476689 B CN101476689 B CN 101476689B
- Authority
- CN
- China
- Prior art keywords
- lgp
- silica gel
- blooming piece
- module backlight
- fixed part
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000000741 silica gel Substances 0.000 claims description 24
- 229910002027 silica gel Inorganic materials 0.000 claims description 24
- 239000012528 membrane Substances 0.000 abstract 6
- 230000003287 optical effect Effects 0.000 abstract 6
- 229920002379 silicone rubber Polymers 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 239000004568 cement Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000005142 aphototropism Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Abstract
The invention discloses a backlight module, which comprises a light guide plate, a backboard and an optical membrane. The light guide plate is provided with a light incident surface and a light emergent surface, and the light incident surface is provided with a light source; the backboard is used for fixing the light guide plate and the light source; the optical membrane is positioned above the light guide plate, wherein a retaining wall which is constructed by silicon rubber strips is arranged at the periphery of the optical membrane; the silicon rubber strip retaining wall encloses the optical membrane; and the silicon rubber strips are attached to near fixed part materials. The backlight module provided by the invention can effectively fix the optical membrane, cannot occupy larger space, cannot cause the warp and deformation of the optical membrane due to the uneven thermal expansion coefficient, and is favorable for the thinning of panels.
Description
Technical field
The present invention relates to a kind of module backlight, relate in particular to a kind of module backlight that improves the blooming piece fixed form.
Background technology
At present, in the illuminated module backlight of the side of liquid crystal panel, LGP is indispensable important optics, and the design of the fixed form of LGP has also just become the problem that must consider.Fig. 1 is existing back light module unit structure schematic diagram, sees also Fig. 1, comprises metal backing 6, reflector plate 4, LGP 7, light source 3, blooming piece 2 and plastic cement frame 1 in the common module backlight.Backlight generally is divided into straight-down negative and side light inlet mode at present.In the down straight aphototropism mode set structure, fluorescent tube is arranged on the backboard fifty-fifty, and light makes the backlight uniformly light-emitting by blooming pieces such as diffuser plate, diffusion sheets.In side light inlet mode back light module unit structure, fluorescent tube is placed on the one or both sides of described LGP, and light evenly penetrates by the exiting surface of LGP.Relatively Chang Yong blooming piece fixedly is that the accordion wall that adopts metal backing, plastic cement frame etc. are fixed.See also Fig. 1, backboard 6 is the basic fixed structure of module backlight, and backboard accordion wall 5 and plastic cement frame 1 on it are used for fixing blooming piece 2.
Along with the technical development of liquid crystal panel, slimming has become development trend.Slim to a certain degree the time when panel, because of the restriction in space, the plastic cement frame will be cancelled, and fixes LGP and also can't generate the backboard accordion wall in light source side.At present, slim panel has and adopts two-sided tape that blooming piece is fixed on mode on other materials, sees also Fig. 2, and blooming piece 2 is attached to LGP 7 by adhesive 8.But since blooming piece and blooming piece different with the coefficient of thermal expansion of other materials often multilayer film cause the coefficient of thermal expansion of self inhomogeneous, when warpage and distortion appear greatly the time in size easily.
Summary of the invention
Technical problem to be solved by this invention provides a kind of module backlight, and effectively the fixed optics diaphragm neither takies than large space, can not cause blooming piece warpage and distortion because coefficient of thermal expansion is inhomogeneous again.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of module backlight, comprises a LGP, is provided with incidence surface and exiting surface, and the incidence surface side is provided with light source; One backboard is used for fixing described LGP and light source; Blooming piece is positioned at the top of described LGP; Wherein, be provided with the barricade that is built into by silica gel strip around the described blooming piece, described silica gel strip barricade surrounds described blooming piece, and described silica gel strip is attached on nearby the fixed part material.
Above-mentioned module backlight, wherein, described fixed part material is a LGP.
Above-mentioned module backlight, wherein, described light source is a LED lamp bar, described LED lamp bar comprises LED and for LED provides the FPC of driving, described fixed part material is a LED lamp bar.
Above-mentioned module backlight, wherein, described silica gel strip is divided into multistage and is attached on the described fixed part material.
The present invention contrasts prior art following beneficial effect: module backlight provided by the invention is limited to blooming piece wherein by the barricade that is built into by silica gel strip is set around blooming piece.Module backlight provided by the invention is the fixed optics diaphragm effectively, neither takies than large space, can not cause blooming piece warpage and distortion because coefficient of thermal expansion is inhomogeneous again, helps the panel slimming.
Description of drawings
Fig. 1 is existing back light module unit structure schematic diagram.
Fig. 2 is existing by fixed optics diaphragm schematic diagram.
Fig. 3 is the fixing schematic diagram of blooming piece of module backlight of the present invention.
Fig. 4 is a fixedly schematic diagram of first kind of silica gel strip barricade of the present invention.
Fig. 5 is a fixedly schematic diagram of second kind of silica gel strip barricade of the present invention.
Among the figure:
1 plastic cement frame, 2 blooming pieces, 3 light sources
4 reflector plates, 5 backboard accordion walls, 6 backboards
7 LGPs, 8 adhesives, 9 FPCs
10 silica gel strips
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 3 is the fixing schematic diagram of blooming piece of module backlight of the present invention.
See also Fig. 3, comprise LGP 7 in the module backlight of the present invention, be provided with incidence surface and exiting surface, the incidence surface side is provided with light source, and described LGP 7 guiding light transmission directions make light evenly be penetrated by the exiting surface of LGP; Backboard 6 is used for fixing described LGP 7 and light source, for module backlight provides the basic fixed structure; Blooming piece 2 is positioned at the top of LGP 7; Wherein, be provided with the barricade that is built into by silica gel strip 10 around the blooming piece 2, described silica gel strip barricade from around surround blooming piece 2, silica gel strip 10 is attached on nearby the fixed part material, fixed part material nearby can be LGP.If light source adopts LED lamp bar, fixed part material and described silica gel strip 10 that described LED lamp bar also can be used as nearby attach.
Next specify the silica gel strip among the present invention and the attaching mode of fixed part material nearby.
Fig. 4 is a fixedly schematic diagram of first kind of silica gel strip barricade of the present invention.
For the module backlight that adopts LED lamp bar, LED lamp bar can be used as fixed part material nearby, sees also Fig. 4, and LED lamp bar comprises led light source and for led light source 3 provides the FPC 9 of driving, FPC 9 is positioned at the top of LGP 7.Silica gel strip 10 is pasted on the FPC 9 by adhesive 8, forms around blooming piece 2 and surrounds structure, thereby effectively limit moving of blooming piece 2.
Fig. 5 is a fixedly schematic diagram of second kind of silica gel strip barricade of the present invention.
For side-light type module backlight, generally can adopt LGP conduct fixed part material nearby, see also Fig. 5, silica gel strip 10 is pasted on the LGP 7 by adhesive 8.For down straight aphototropism mode set, it comprises a diffuser plate, places the top of described fluorescent tube, and fixed part material and described silica gel strip 10 that described diffuser plate also can be used as nearby attach.In addition, attach for convenience, silica gel strip 10 can be divided into multistage and be attached to respectively on nearby the fixed part material.
In sum, module backlight provided by the invention is limited to blooming piece 2 wherein by the barricade that is built into by silica gel strip 10 is set around blooming piece 2.Module backlight provided by the invention is fixed optics diaphragm 2 effectively, neither takies than large space, can not cause blooming piece warpage and distortion because coefficient of thermal expansion is inhomogeneous again, helps the panel slimming.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (4)
1. module backlight comprises:
One LGP is provided with incidence surface and exiting surface, and the incidence surface side is provided with light source;
One backboard is used for fixing described LGP and light source;
Blooming piece is positioned at the top of described LGP;
It is characterized in that be provided with the barricade that is built into by silica gel strip around the described blooming piece, described silica gel strip barricade surrounds described blooming piece, described silica gel strip is attached on nearby the fixed part material.
2. module backlight as claimed in claim 1 is characterized in that, described fixed part material is a LGP.
3. module backlight as claimed in claim 1 is characterized in that, described light source is a LED lamp bar, and described LED lamp bar comprises LED and for LED provides the FPC of driving, described fixed part material is a LED lamp bar.
4. as each described module backlight of claim 1 to 3, it is characterized in that described silica gel strip is divided into multistage and is attached on the described fixed part material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100454747A CN101476689B (en) | 2009-01-16 | 2009-01-16 | Back light module unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100454747A CN101476689B (en) | 2009-01-16 | 2009-01-16 | Back light module unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476689A CN101476689A (en) | 2009-07-08 |
| CN101476689B true CN101476689B (en) | 2011-08-03 |
Family
ID=40837440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100454747A Expired - Fee Related CN101476689B (en) | 2009-01-16 | 2009-01-16 | Back light module unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101476689B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI472846B (en) * | 2011-05-25 | 2015-02-11 | Chi Lin Optoelectronics Co Ltd | Backlight module |
| CN102980148B (en) | 2012-12-04 | 2015-03-04 | 京东方科技集团股份有限公司 | Frame of backlight module, backlight module and display device |
| CN205334014U (en) * | 2016-01-04 | 2016-06-22 | 京东方光科技有限公司 | Sticky tape, backlight unit and display device |
| CN109164637B (en) * | 2018-10-10 | 2021-06-29 | 海信视像科技股份有限公司 | Backlight module and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003162901A (en) * | 2001-11-27 | 2003-06-06 | Fujitsu Display Technologies Corp | Back light and liquid crystal display |
| CN1727961A (en) * | 2004-07-26 | 2006-02-01 | 奇美电子股份有限公司 | Fixing mechanism for avoiding diffuser plate of full run-down type back light module from warp |
-
2009
- 2009-01-16 CN CN2009100454747A patent/CN101476689B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003162901A (en) * | 2001-11-27 | 2003-06-06 | Fujitsu Display Technologies Corp | Back light and liquid crystal display |
| CN1727961A (en) * | 2004-07-26 | 2006-02-01 | 奇美电子股份有限公司 | Fixing mechanism for avoiding diffuser plate of full run-down type back light module from warp |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003—162901 2003.06.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101476689A (en) | 2009-07-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING CEC PANDA LCD TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SVA (GROUP) CO., LTD. Effective date: 20110616 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200233 BUILDING 3, NO. 757, YISHAN ROAD, XUHUI DISTRICT, SHANGHAI TO: 210038 NO. 9, HENGYI ROAD, NANJING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, NANJING CITY, JIANGSU PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110616 Address after: 210038 Nanjing economic and Technological Development Zone, Jiangsu Province, Hengyi Road, No. 9, No. Applicant after: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Address before: 200233, Shanghai, Yishan Road, No. 757, third floor, Xuhui District Applicant before: SVA OPTRONICS |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 |