CN202794763U - Shading strip and backlight source and display device - Google Patents
Shading strip and backlight source and display device Download PDFInfo
- Publication number
- CN202794763U CN202794763U CN 201220232998 CN201220232998U CN202794763U CN 202794763 U CN202794763 U CN 202794763U CN 201220232998 CN201220232998 CN 201220232998 CN 201220232998 U CN201220232998 U CN 201220232998U CN 202794763 U CN202794763 U CN 202794763U
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- shading strip
- display device
- base material
- backlight
- film material
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Abstract
The utility model discloses a shading strip, a backlight source and a display device, and aims at solving the technical problem that when existing shading strip base materials are placed in a high-temperature high-humidity environment, membrane materials can be wrinkled to influence a display effect. According to the shading strip, thermal shrinkage type base materials are adopted to replace thermal expansion type materials used in a backlight shading strip of an existing liquid crystal display device, under the high temperature or high-temperature high-humidity condition, shrinkage of the shading strip can offset a part of deformation caused by expansion of the membrane materials so as to prevent the membrane materials from generating optical membrane material wrinkles, and smoothness of the membrane materials and the display effect are guaranteed.
Description
Technical field
The utility model relates to LCDs (LCD) technology, relates in particular to a kind of shading strip, backlight and display device.
Background technology
Liquid crystal display is the slit light leak that prevents between liquid crystal panel and the framework at present, usually uses the frame type adhesive tape (masking tape) of high polymer (PET) base material or polycarbonate (PC) base material as shading strip.Fig. 1 is the cross section structural representation of liquid crystal display, leaving a slit between framework 1 and the liquid crystal panel 2, is backlight under the framework 1 bottom liquid crystal panel 2, for preventing light leak, need to use shading strip 3 that the slit is covered, shading strip 3 is bonding with framework 1 and liquid crystal panel 2 respectively.The base material of the film material 4 (such as polaroid) on the liquid crystal panel 2 is acrylic acid (Acrylic), and Fig. 2 is the glued construction synoptic diagram of shading strip 3 and film material 4 in the prior art, and among Fig. 2, described shading strip 3 is PET, and described film material 4 is Acrylic.Because the base material of shading strip 3 and the base material of film material 4 all are the heat expansion shaped material, therefore, under hot and humid environment, film material 4 expands with shading strip 3, thereby causes that film material 4 produces fold (sheet wrinkle), affects display effect.
The utility model content
In view of this, fundamental purpose of the present utility model is to provide a kind of shading strip, backlight and display device, is used for solving existing shading strip base material under hot and humid environment, causes easily the film material to produce fold, affects the technical matters of display effect.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of shading strip, this base material that is pasted on the shading strip on framework surface and panel membrane material surface is heat shrinking material.
Further, the heat shrinking material that adopts of the base material of described shading strip is the Corvic base material.
Further, the heat shrinking material that adopts of the base material of described shading strip is for having flexible thermal shrinkage type base material.
It is further, described that to have flexible thermal shrinkage type base material be EVA, PVC or ABS.
The utility model also provides a kind of backlight, comprises foregoing shading strip.
The utility model also provides a kind of display device, and this display device comprises foregoing backlight.
The utility model adopts the thermal shrinkage type base material to substitute the employed heat expansion type of the backlight shading strip base material of available liquid crystal display device, under high temperature or hot and humid condition, shading strip shrinks can offset the distortion that a part of film material expands and causes, thereby avoid the film material to produce the optical film material fold, guarantee the smooth of film material, guarantee display effect.
Description of drawings
Fig. 1 is the cross section structural representation of liquid crystal display;
Fig. 2 is the glued construction synoptic diagram of shading strip and film material in the prior art;
The shading strip that Fig. 3 provides for the utility model and the glued construction synoptic diagram of film material.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples and by reference to the accompanying drawings, the utility model is described in further details.
The shading strip 3 that Fig. 3 provides for the utility model and the glued construction synoptic diagram of film material 4, in the utility model, shading strip 3 is not only for the slit light leak that prevents between panel and the framework, also can be used for preventing other slit light leaks of backlight, such as slit possible between slit possible between lampshade and the optical film material, glue frame and the light guide plate etc.
For avoiding under hot and humid environment, cause the film material to produce fold, shading strip 3 in the utility model adopts the thermal shrinkage type base material, Corvic (PVC) base material for example, substitute available liquid crystal display shading bar 3 employed heat expansion type base materials, under hot and humid condition, the film material 4 that is positioned on the liquid crystal panel 2 produces expansion, and shading strip 3 produces contraction, the contraction of shading strip 3 applies the tension force of an active to film material 4, thereby guarantee to be positioned at the smooth of film material 4 on the liquid crystal panel 2, avoid film material 4 to produce folds, guarantee display effect.Among Fig. 3, described shading strip 3 is PVC, and described film material 4 is Acrylic.
In another preferred embodiment of the utility model, base material that described shading strip 3 adopts adopts has flexible thermal shrinkage type material, and described to have flexible thermal shrinkage type base material can be multipolymer (EVA), PVC, acrylonitrile-butadiene-styrene copolymer (ABS) etc.Among this embodiment, assembling liquid crystal display when pasting shading strip 3, adds certain deflection in advance at normal temperatures, makes shading strip 3 after sticking on film material 4 and the framework 1, and framework 1 one sides produce certain elastic pulling force to film material 4 one sides.For example can first pad pasting material 4 one sides, then behind the opposite side of cross directional stretch shading strip, opposite side is pasted on the framework 1.When being in high temperature or hot and humid condition lower time, film material 4 expands, but because shading strip 3 is positioned at a side of framework 1 film material 4 one sides is had certain elastic pulling force, can be with film material 4 to framework one side stretching, thereby guarantee the smooth of film material 4, avoid film material 4 to produce fold.
The utility model also further provides a kind of backlight, comprises foregoing shading strip.
The utility model also further provides a kind of display device, and this display device comprises foregoing backlight shading strip.Described display device can need arbitrarily for LCD TV, mobile phone, panel computer, digital album (digital photo frame) etc. product or the parts of backlight.
The above is preferred embodiment of the present utility model only, is not be used to limiting protection domain of the present utility model.
Claims (6)
1. a shading strip is characterized in that,
The base material that is pasted on the shading strip on framework surface and panel membrane material surface is heat shrinking material.
2. shading strip according to claim 1 is characterized in that,
The heat shrinking material that the base material of described shading strip adopts is the Corvic base material.
3. shading strip according to claim 1 is characterized in that,
The heat shrinking material that the base material of described shading strip adopts is for having flexible thermal shrinkage type base material.
4. shading strip according to claim 3 is characterized in that,
It is described that to have flexible thermal shrinkage type base material be EVA, PVC or ABS.
5. a backlight is characterized in that,
Comprise such as each described shading strip of claim 1 to 4.
6. a display device is characterized in that, this display device comprises:
Backlight as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232998 CN202794763U (en) | 2012-05-22 | 2012-05-22 | Shading strip and backlight source and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232998 CN202794763U (en) | 2012-05-22 | 2012-05-22 | Shading strip and backlight source and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794763U true CN202794763U (en) | 2013-03-13 |
Family
ID=47821998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232998 Expired - Lifetime CN202794763U (en) | 2012-05-22 | 2012-05-22 | Shading strip and backlight source and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342969A (en) * | 2013-07-09 | 2013-10-09 | 苏州百骐电子材料有限公司 | Printed circuit board (PCB) shading tape and preparation method thereof |
| CN104806929A (en) * | 2015-04-14 | 2015-07-29 | 武汉华星光电技术有限公司 | Optical film locating structure for backlight module, backlight module and display |
| CN106647029A (en) * | 2016-12-26 | 2017-05-10 | 武汉华星光电技术有限公司 | Backlight module and backlight source and plastic frame thereof |
-
2012
- 2012-05-22 CN CN 201220232998 patent/CN202794763U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342969A (en) * | 2013-07-09 | 2013-10-09 | 苏州百骐电子材料有限公司 | Printed circuit board (PCB) shading tape and preparation method thereof |
| CN104806929A (en) * | 2015-04-14 | 2015-07-29 | 武汉华星光电技术有限公司 | Optical film locating structure for backlight module, backlight module and display |
| CN104806929B (en) * | 2015-04-14 | 2017-08-04 | 武汉华星光电技术有限公司 | Backlight module optical film location structure, backlight module and display |
| CN106647029A (en) * | 2016-12-26 | 2017-05-10 | 武汉华星光电技术有限公司 | Backlight module and backlight source and plastic frame thereof |
| CN106647029B (en) * | 2016-12-26 | 2019-12-31 | 武汉华星光电技术有限公司 | Backlight module and backlight source and rubber frame thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150626 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150626 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |