CN203349056U - Light-guiding type liquid crystal display backlight module - Google Patents
Light-guiding type liquid crystal display backlight module Download PDFInfo
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- CN203349056U CN203349056U CN2013202967405U CN201320296740U CN203349056U CN 203349056 U CN203349056 U CN 203349056U CN 2013202967405 U CN2013202967405 U CN 2013202967405U CN 201320296740 U CN201320296740 U CN 201320296740U CN 203349056 U CN203349056 U CN 203349056U
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- light
- adhesive tape
- edge section
- surrounding edge
- backlight module
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Abstract
The utility model discloses a light-guiding type liquid crystal display backlight module. The light-guiding type liquid crystal display backlight module comprises a light guide plate, a reflecting film and an LED light source arranged on the light guide plate, wherein a light scattering film is attached to the top face of the light guide plate in a coating mode, a black tape is laid between the reflecting film and the light guide plate, and black tapes adhere to the outer edge of the periphery of the light guide plate to form a tape edge-surrounding portion. According to the light-guiding type liquid crystal display backlight module, due to the facts that fixation between the reflecting film and the light guide plate is achieved through the black tapes, and the black tapes has the shading performance, light cannot leak out through the edge of the periphery of the light guide plate, light leakage is effectively reduced, and the reflectivity is improved; meanwhile, due to the fact that transmitted light of the LED light source can be timely adjusted through the light scattering film and the reflecting film, the luminance of the light-guiding type liquid crystal display backlight module can be better and even, and the light-guiding type liquid crystal display backlight module further has the advantages of being compact in structure, small in size, stable in structure, even in light emission on the surface, high in purity of light colors, long in service life and the like.
Description
Technical field
The utility model relates to field of liquid crystal display, relates in particular to a kind of light-conducting type LCD backlight module.
Background technology
Along with lightening, the light-weighted continuous demand of liquid crystal visualizer, and maintaining under the prerequisite of brilliant degree and the uniformity, is necessary trend by the assembly Composite of backlight module.But existing backlight module can't its assembly is tight cooperation, therefore there will be the phenomenon of light leak, thereby cause the overall brightness inequality of light-emitting area, finally cause the liquid crystal display operating efficiency not high, energy-saving effect is bad.
The utility model content
For the weak point existed in above-mentioned technology, the utility model provides a kind of Stability Analysis of Structures, energy-conserving and environment-protective, the light leak rate is low and emissivity is high light-conducting type LCD backlight module.
For achieving the above object, the utility model provides a kind of light-conducting type LCD backlight module, comprise LGP, reflectance coating and be arranged on the LED light source on LGP, be covered with light-diffusing film on the end face of described LGP, be equipped with black tape between described reflectance coating and LGP, the surrounding outer edge of described LGP pastes black tape and forms adhesive tape surrounding edge section.
Wherein, described adhesive tape surrounding edge section comprises the first adhesive tape surrounding edge section, the second adhesive tape surrounding edge section, the 3rd adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section of the surrounding outer edge that is laid on LGP, described the first adhesive tape surrounding edge section and the 3rd adhesive tape surrounding edge section are symmetrical arranged and the shape size adaptation, and described the second adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section are symmetrical arranged and the shape size adaptation.
Wherein, the size of described the first adhesive tape surrounding edge section and the 3rd adhesive tape surrounding edge section is 10*38mm, and the size of described the second adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section is 3.4*177mm.
Wherein, the material of described LGP is polymethyl methacrylate.
The beneficial effects of the utility model are: compared with prior art, the light-conducting type LCD backlight module that the utility model provides, be equipped with black tape between reflectance coating and LGP, the surrounding outer edge of LGP pastes black tape and forms adhesive tape surrounding edge section, realize the fixing of reflectance coating and LGP by black tape, and black tape has certain light-proofness, so light can not spill from the edge of LGP, effectively reduce light leak, improve reflectivity; Simultaneously, light-diffusing film and reflectance coating are adjusted the emission of light of LED light source in time, make the brightness of this backlight module more even more by force.The utility model also has that compact conformation, volume are little, Stability Analysis of Structures, even, the photochromic purity of surface light emitting is high and the characteristics such as long service life.
The accompanying drawing explanation
The structure chart that Fig. 1 is light-conducting type LCD backlight module of the present utility model;
Fig. 2 is A place enlarged diagram in Fig. 1;
The structure chart that Fig. 3 is LGP, reflectance coating and black tape in the utility model.
The main element symbol description is as follows:
10, LGP 11, reflectance coating
12, light-diffusing film 13, black tape
14, adhesive tape surrounding edge section 141, the first adhesive tape surrounding edge section
142, the second adhesive tape surrounding edge section 143, the 3rd adhesive tape surrounding edge section
144, the 4th adhesive tape surrounding edge section
The specific embodiment
In order more clearly to explain the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1-3, the light-conducting type LCD backlight module that the utility model provides, comprise LGP 10, reflectance coating 11 and be arranged on the LED light source (not shown) on LGP 10, be covered with light-diffusing film 12 on the end face of LGP 10, be equipped with black tape 13 between reflectance coating 11 and LGP 10, the surrounding outer edge of LGP 10 pastes black tape 13 and forms adhesive tape surrounding edge section 14.The effect of LGP 10 is to guide the scattering of light direction, be used for improving the brightness of liquid crystal panel, and guarantee the uniformity of panel luminance, whether good the impact on liquid crystal backlight of LGP 10 be very large, the effect of reflectance coating 12 is that the light that LGP 10 bottom surfaces are spilt reflects back in LGP 10, be used for improving the service efficiency of light, the effect of light-diffusing film 12 is to improve the brightness on LGP 10 end faces, allows the distribution of light more evenly make to can't see from front the shadow of pip; The effect of black tape 13 is that it has certain light-proofness, and forms adhesive tape surrounding edge section 14 in the edge of LGP 10, makes the light of LGP 10 surroundings can not leak outside.From all angles on LGP 10 surfaces, LGP 10 is carried out to the protection of light by light-diffusing film 12, reflectance coating 11 and black tape 13, therefore reduced the light leak of this backlight module, improved reflectivity.
Situation compared to prior art, the light-conducting type LCD backlight module that the utility model provides, be equipped with black tape 13 between reflectance coating 11 and LGP 10, the surrounding outer edge of LGP 10 pastes black tape 13 and forms adhesive tape surrounding edge section 14, realize the fixing of reflectance coating 11 and LGP 10 by black tape 13, and black tape 13 has certain light-proofness, so light can not spill from the edge of LGP 10, effectively reduce light leak, improve reflectivity; Simultaneously, light-diffusing film 12 and reflectance coating 11 are adjusted the emission of light of LED light source in time, make the brightness of this backlight module more even more by force.The utility model also has that compact conformation, volume are little, Stability Analysis of Structures, even, the photochromic purity of surface light emitting is high and the characteristics such as long service life.
In the present embodiment, adhesive tape surrounding edge section 14 comprises the first adhesive tape surrounding edge section 141, the second adhesive tape surrounding edge section 142, the 3rd adhesive tape surrounding edge section 143 and the 4th adhesive tape surrounding edge section 144 of the surrounding outer edge that is laid on LGP 10, the first adhesive tape surrounding edge section 141 and the 3rd adhesive tape surrounding edge section 143 are symmetrical arranged and the shape size adaptation, and the second adhesive tape surrounding edge section 142 and the 4th adhesive tape surrounding edge section 144 are symmetrical arranged and the shape size adaptation.Because the LGP here 10 is square, therefore can form four little adhesive tape surrounding edge sections, if the shape of LGP 10 changes, the shape of adhesive tape surrounding edge section 14 is also along with changing so, so the shape of adhesive tape surrounding edge section 14 is not limited to.
In the present embodiment, the size of the first adhesive tape surrounding edge section 141 and the 3rd adhesive tape surrounding edge section 143 is 10*38mm, and the size of the second adhesive tape surrounding edge section 142 and the 4th adhesive tape surrounding edge section 144 is 3.4*177mm.Certainly, the size of above-mentioned surrounding edge section is not limited to, if, to the change of the size of above-mentioned four surrounding edge sections, all belong to simple variation of the present utility model or conversion, falls into protection domain of the present utility model.
In the present embodiment, the material of LGP 10 is polymethyl methacrylate.Can adopt following several form what make LGP 10: 1) some printing-type LGP: utilize the printing material containing high divergent light source material, the suitable bottom surface that is distributed in LGP, make light be penetrated and be uniformly distributed in luminous zone by front in form; 2) engraving LGP: adopt laser engraving machine to be carved according to certain pattern LGP, the long groove structure of carve one rule, the mirror surface of ditch both sides destroys original total reflection effect, and light source is penetrated by the front of LGP.The material of these LGPs is polymethyl methacrylate, is PMMA.
Above disclosed be only several specific embodiment of the present utility model, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (4)
1. a light-conducting type LCD backlight module, it is characterized in that, comprise LGP, reflectance coating and be arranged on the LED light source on LGP, be covered with light-diffusing film on the end face of described LGP, be equipped with black tape between described reflectance coating and LGP, the surrounding outer edge of described LGP pastes black tape and forms adhesive tape surrounding edge section.
2. light-conducting type LCD backlight module according to claim 1, it is characterized in that, described adhesive tape surrounding edge section comprises the first adhesive tape surrounding edge section, the second adhesive tape surrounding edge section, the 3rd adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section of the surrounding outer edge that is laid on LGP, described the first adhesive tape surrounding edge section and the 3rd adhesive tape surrounding edge section are symmetrical arranged and the shape size adaptation, and described the second adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section are symmetrical arranged and the shape size adaptation.
3. light-conducting type LCD backlight module according to claim 2, it is characterized in that, the size of described the first adhesive tape surrounding edge section and the 3rd adhesive tape surrounding edge section is 10*38mm, and the size of described the second adhesive tape surrounding edge section and the 4th adhesive tape surrounding edge section is 3.4*177mm.
4. light-conducting type LCD backlight module according to claim 1, is characterized in that, the material of described LGP is polymethyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202967405U CN203349056U (en) | 2013-05-27 | 2013-05-27 | Light-guiding type liquid crystal display backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202967405U CN203349056U (en) | 2013-05-27 | 2013-05-27 | Light-guiding type liquid crystal display backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349056U true CN203349056U (en) | 2013-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202967405U Expired - Fee Related CN203349056U (en) | 2013-05-27 | 2013-05-27 | Light-guiding type liquid crystal display backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203349056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068176A (en) * | 2015-09-18 | 2015-11-18 | 武汉华星光电技术有限公司 | Method for improving quality of light guide plates and light guide plate |
-
2013
- 2013-05-27 CN CN2013202967405U patent/CN203349056U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068176A (en) * | 2015-09-18 | 2015-11-18 | 武汉华星光电技术有限公司 | Method for improving quality of light guide plates and light guide plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |