CN202691762U - Backlight module and liquid crystal display thereof - Google Patents
Backlight module and liquid crystal display thereof Download PDFInfo
- Publication number
- CN202691762U CN202691762U CN 201220170036 CN201220170036U CN202691762U CN 202691762 U CN202691762 U CN 202691762U CN 201220170036 CN201220170036 CN 201220170036 CN 201220170036 U CN201220170036 U CN 201220170036U CN 202691762 U CN202691762 U CN 202691762U
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- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- liquid crystal
- reflector plate
- backlight module
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Abstract
A liquid crystal display comprises an LCD panel, a printed circuit board and a backlight module, wherein the backlight module is arranged below the LCD panel. The backlight module comprises a glue frame, a thermal-protective coating, and a reflecting plate, wherein the an opening is formed on the glue frame and the opening is used for accommodating the printed circuit board; the thermal-protective coating is arranged at the upper part of the printed circuit board; and the reflecting plate is arranged at the upper part of the thermal-protective coating and the thermal-protective coating is arranged between the printed circuit board and the reflecting plate and used for reducing heat generated by the printed circuit board to be transmitted to the reflecting plate. According to the utility module, the thermal-protective coating can be accommodated between the printed circuit board and the reflecting plate, and therefore the reflecting plate is not warped due to the heat generated by the printed circuit board, that is backlight is distributed evenly. In addition, the thermal-protective coating disclosed by the utility module is capable of reflecting lights, that is light source penetrating the reflecting plate can be reflected a second time, and therefore light energy can be effectively used.
Description
Technical field
The utility model is a kind of liquid crystal display, particularly avoids reflector plate to be heated and produces the liquid crystal display of warpage relevant for a kind of.
Background technology
Liquid crystal display has been widely used in digital camera at present, in the products such as notebook computer, mobile phone and flat-surface television.
Generally speaking, the backlight module of liquid crystal display can be according to the position at light source place, be divided into light source from (direct-type) backlight module of the straight-down negative under the display floater and light source near two kinds of designs of the side-light type the display floater side (edge-type) backlight module.Because side light type back light module is located at the side of display floater with light source generator, so can dwindle volume and the manufacturing cost of liquid crystal display, and is applied to small-sized electric equipment products.
Fig. 1 is the back side schematic perspective view of known liquid crystal display, please consults simultaneously the generalized section that Fig. 2 is known liquid crystal display.Known liquid crystal display 9 comprises a liquid crystal panel 94, a backlight module 91, a housing 93 and a printed circuit board (PCB) 92.This backlight module 91 comprises a glue frame 911, a LGP 913, an optical model sheet group 914 and a reflector plate 912.This reflector plate 912 is disposed in the glue frame 911.LGP 913 is disposed at reflector plate 912 tops.Optical diaphragm group 914 is configured in LGP 913 tops.Liquid crystal panel 94 is configured in this glue frame 911 and this optical model sheet group 914 tops.In order to reduce the thickness of liquid crystal display, glue frame 911 needs an opening 915 in addition, allows printed circuit board (PCB) 92 be configured in the below of this opening 915 and reflector plate 912 and presses close to reflector plate 912.Via this housing 93 that liquid crystal panel 94 and backlight module 91 is fixing more at last.
When liquid crystal display 9 normal operation, the electronic building brick on the printed circuit board (PCB) 92 can generate heat, and printed circuit board (PCB) 92 presses close to again reflector plate 912, and 912 of reflector plates produce warpage because be heated easily, cause uneven phenomenon backlight.
Therefore, just having to provide a kind of liquid crystal display that reduces the reflector plate warpage, to solve aforesaid problem.
Summary of the invention
The utility model provides a kind of liquid crystal display, comprising: a liquid crystal panel, a printed circuit board (PCB) and a backlight module, this backlight module are configured in this liquid crystal panel below; Backlight module comprises: a glue frame, and this glue frame has an opening, and this opening is in order to accommodating this printed circuit board (PCB); One thermal insulation layer is configured in this printed circuit board (PCB) top; And a reflector plate, be configured in this thermal insulation layer top, wherein this thermal insulation layer is configured between this printed circuit board (PCB) and this reflector plate, is sent to this reflector plate in order to reduce the heat that this printed circuit board (PCB) produces.
Therefore, characteristics of the present utility model are, have increased thermal insulation layer between printed circuit board (PCB) and reflector plate, so reflector plate can again because the printed circuit board (PCB) heating causes reflector plate not produce warpage because of being heated, namely can not cause the phenomenon of inequality backlight.Moreover thermal insulation layer of the present utility model can have catoptrical function, can with the light source of penetrate through reflective sheet secondary reflection again, effectively utilize luminous energy.
In order to allow above and other purpose of the present utility model, feature and the advantage can be more obvious, hereinafter will cooperate appended diagram, be described in detail below.
Description of drawings
Fig. 1 is the back side schematic perspective view of known liquid crystal display;
Fig. 2 is the generalized section of known liquid crystal display;
Fig. 3 is an embodiment liquid crystal display back side schematic perspective view of the present utility model; And
Fig. 4 is the generalized section of the liquid crystal display of one of the utility model embodiment.
[primary clustering symbol description]
1 liquid crystal display, 11 backlight modules
111 glue frame 111a sidepieces
112 reflector plates, 113 thermal insulation layers
114 LGPs, 115 optical diaphragm group
13 housings, 14 liquid crystal panels
9 liquid crystal displays, 91 backlight modules
911 glue frames, 912 reflector plates
913 LGPs, 914 optical diaphragm group
915 openings, 92 printed circuit board (PCB)s
93 housings, 94 liquid crystal panels
The specific embodiment:
Fig. 3 is an embodiment liquid crystal display back side schematic perspective view of the present utility model, please consults simultaneously Fig. 4.Fig. 4 is the generalized section of the liquid crystal display of an embodiment of the present utility model.Liquid crystal display 1 of the present utility model comprises a liquid crystal panel 14, a printed circuit board (PCB) 12, a housing 13 and a backlight module 11.This backlight module 11 comprises a glue frame 111, a thermal insulation layer 113, a reflector plate 112, a LGP 114 and an optical diaphragm group 115.This glue frame 111 comprises a sidepiece 111a, a bottom 111b and an opening 111c.This bottom 111b links to each other with this sidepiece 111a and presents the L-type corner.
When assembling, this liquid crystal panel 14 is configured in this sidepiece 111a top of this glue frame 111, this liquid crystal panel 14 is electrically connected by winding carrying encapsulation and this printed circuit board (PCB) 12, this printed circuit board (PCB) 12 also utilizes the bent performance of winding carrying encapsulation, the opening 111c of folding to a backlight module 11, this opening 111c is in order to accommodating this printed circuit board (PCB) 12, and making this printed circuit board (PCB) 12 is same plane with this bottom 111b.This thermal insulation layer 113 is configured in this printed circuit board (PCB) 12 tops by the support of this bottom 111b of glue frame 111.This reflector plate 112 is configured in this thermal insulation layer 113 tops, and wherein this thermal insulation layer 113 is configured between this printed circuit board (PCB) 12 and this reflector plate 112, is sent to this reflector plate 112 in order to reduce the heat that this printed circuit board (PCB) 12 produces.The material of this thermal insulation layer 113 can be with reflector plate 112 for same material or resin material with heat insulating function for example this resin material be PET (Polyethylene terephthalate; Be called for short PET), but not as limit.The utility model the best is executed material and this reflector plate 112 that real mode is this thermal insulation layer 113 and is same material, making this reflector plate 112 is the first reflector plate, and this thermal insulation layer 113 is the second reflector plate, except can be effectively heat insulation, avoid outside reflector plate 112 warpages, also can with the light source that penetrates the first reflector plate by the second reflector plate secondary reflection again, effectively utilize luminous energy.
The last outside that is configured in again this liquid crystal board 14 and this backlight module 11 via this housing 13, and liquid crystal panel 14 and backlight module 11 is fixing.
Therefore, characteristics of the present utility model are, have increased thermal insulation layer between printed circuit board (PCB) and reflector plate, thereby reflector plate can again because the printed circuit board (PCB) heating causes reflector plate to produce warpage because being heated, namely can not cause the phenomenon of inequality backlight.Moreover thermal insulation layer of the present utility model has catoptrical function, can with the light source of penetrate through reflective sheet secondary reflection again, effectively utilize luminous energy.
In sum, its only the notebook utility model be embodiment or the embodiment that presents the technological means that adopts of dealing with problems, be not the scope that limits the utility model patent working.Be allly to conform to the utility model claim context, or change and modify according to the equalization that the utility model claim is done, be all the utility model claim and contain.
Claims (10)
1. a backlight module is characterized in that, comprising:
One glue frame, this glue frame has an opening, and this opening is in order to an accommodating printed circuit board (PCB);
One thermal insulation layer is configured in this printed circuit board (PCB) top; And
One reflector plate is configured in this thermal insulation layer top, and wherein this thermal insulation layer is configured in this printed circuit board (PCB) and this reflector plate
Between, be sent to this reflector plate in order to reduce the heat that this printed circuit board (PCB) produces.
2. backlight module as claimed in claim 1 is characterized in that, wherein said thermal insulation layer and this reflector plate are commaterial.
3. backlight module as claimed in claim 1 is characterized in that, wherein said reflector plate is one first reflector plate, and this thermal insulation layer is one second reflector plate.
4. backlight module as claimed in claim 1 is characterized in that, wherein this thermal insulation layer is a resin material.
5. backlight module as claimed in claim 4 is characterized in that, wherein this resin material is PET.
6. a liquid crystal display is characterized in that, comprising:
One liquid crystal panel;
One printed circuit board (PCB); And
One backlight module is configured in this liquid crystal panel below, and this backlight module comprises:
One glue frame, this glue frame has an opening, and this opening is in order to accommodating this printed circuit board (PCB);
One thermal insulation layer is configured in this printed circuit board (PCB) top; And
One reflector plate is configured in this thermal insulation layer top, and wherein this thermal insulation layer is configured between this printed circuit board (PCB) and this reflector plate, is sent to this reflector plate in order to reduce the heat that this printed circuit board (PCB) produces.
7. liquid crystal display as claimed in claim 6 is characterized in that, more comprises: a housing is configured in side outside this liquid crystal board and this backlight module, in order to this liquid crystal panel and this backlight module are fixed.
8. liquid crystal display as claimed in claim 6 is characterized in that, wherein said thermal insulation layer and this reflector plate are commaterial.
9. liquid crystal display as claimed in claim 6 is characterized in that, wherein said reflector plate is one first reflector plate, and this thermal insulation layer is one second reflector plate.
10. liquid crystal display as claimed in claim 6 is characterized in that, wherein said thermal insulation layer is a resin material, and this resin material is PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220170036 CN202691762U (en) | 2012-04-20 | 2012-04-20 | Backlight module and liquid crystal display thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220170036 CN202691762U (en) | 2012-04-20 | 2012-04-20 | Backlight module and liquid crystal display thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691762U true CN202691762U (en) | 2013-01-23 |
Family
ID=47547379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220170036 Expired - Fee Related CN202691762U (en) | 2012-04-20 | 2012-04-20 | Backlight module and liquid crystal display thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913818A (en) * | 2012-10-10 | 2013-02-06 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
-
2012
- 2012-04-20 CN CN 201220170036 patent/CN202691762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913818A (en) * | 2012-10-10 | 2013-02-06 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102913818B (en) * | 2012-10-10 | 2015-08-26 | 深圳市华星光电技术有限公司 | A kind of backlight module and liquid crystal indicator |
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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: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CHINA PROJECTION TUBE CO., LTD. Effective date: 20130711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130711 Address after: 215217, 555 East Road, Tongli District, Wujiang Economic Development Zone, Jiangsu, China Patentee after: CPTW (Wujiang) Co., Ltd. Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: 215217, No. 88, Tung Hing Road, Tongli District, Wujiang Economic Development Zone, Suzhou, Jiangsu Patentee before: CPTW (Wujiang) Co., Ltd. Patentee before: Chunghwa Picture Tubes Ltd. |
|
| 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: 20130123 Termination date: 20170420 |