CN204176364U - A kind of backlight source module - Google Patents
A kind of backlight source module Download PDFInfo
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- CN204176364U CN204176364U CN201420505588.1U CN201420505588U CN204176364U CN 204176364 U CN204176364 U CN 204176364U CN 201420505588 U CN201420505588 U CN 201420505588U CN 204176364 U CN204176364 U CN 204176364U
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- guide plate
- light guide
- source module
- backlight source
- diffusion barrier
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Abstract
A kind of backlight source module disclosed in the utility model, comprise light guide plate, diffusion barrier, reflectance coating and LED plug-in unit, the model of diffusion barrier is AJ100, diffusion barrier covers the upper surface of light guide plate, the forward and backward two ends of diffusion barrier are equipped with photomask, and reflectance coating covers the lower surface of light guide plate, and light guide plate lower surface is provided with locating dowel, LED plug-in unit is installed in light guide plate, and the periphery of light guide plate is provided with bound edge film.The utility model has following several advantage: the use one, being replaced glue frame by light guide plate, is reduced the thickness of backlight source module, make it more frivolous; Two, adopt LED plug-in unit, LED quantity is reduced, reduces cost cost; Three, consumed power and the caloric value of product is reduced; Four, the overall performance of product is stablized, and illumination effect is well-balanced, goes out light quality high.
Description
Technical field
The utility model relates to the technical field of back lighting device, particularly relates to a kind of backlight source module.
Background technology
Liquid crystal display is made up of LCD MODULE, external drive circuit and backlight source module three parts, and backlight source module is positioned at liquid crystal display a kind of parts behind, and its illumination effect will directly have influence on LCD MODULE visual effect.
In prior art, backlight source module as shown in Figure 1 comprises diffusion barrier 10, glue frame 20, LED circuit board and guide pin 30, the upper surface of glue frame 20 pastes diffusion barrier 10, its lower surface installing guide pin 30, the model of diffusion barrier 10 is MB-633P, LED circuit board is installed in glue frame 20, and LED circuit board is electrically connected with guide pin 30.The diffusion barrier 10 of light through glue frame 20 surface of LED circuit board outgoing upwards spreads, thus emits beam.Although backlight source module structure as above is simple, light is comparatively soft, has following several shortcoming:
One, thickness comparatively large (thickness is greater than 4mm);
Two, LED quantity many (quantity is 24), cost cost is high;
Three, consumed power is large, easily generates heat;
Four, diffusion barrier diffusion effect is poor, affects light quality.
In view of this, a kind of backlight source module of the present inventor's specialized designs, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of backlight source module, and make its structure simple, thickness is less, and cost reduces, and power consumption reduces and to go out light quality better.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of backlight source module, comprise light guide plate, diffusion barrier, reflectance coating and LED plug-in unit, the model of diffusion barrier is AJ100, diffusion barrier covers the upper surface of light guide plate, the forward and backward two ends of diffusion barrier are equipped with photomask, and reflectance coating covers the lower surface of light guide plate, and light guide plate lower surface is provided with locating dowel, LED plug-in unit is installed in light guide plate, and the periphery of light guide plate is provided with bound edge film.
Backlight source module also comprises bright enhancement film, and bright enhancement film covers the upper surface of described diffusion barrier.
Arc groove is offered in the middle part of described light guide plate rear end.
Described light guide plate is that polymethyl methacrylate or makrolon material are made.
Described photomask covers on the edge of diffusion barrier.
Described photomask is adhesive photomask.
Described reflectance coating model is RW100.
Described reflectance coating comprises the plane of reflection and reflective concave convex surface, and reflective concave convex surface is connected with the plane of reflection, and reflective concave convex surface relative reflection plane is overshooting shape.
The material of the described plane of reflection comprises polycarbonate, polyvinylchloride, polyethylene terephtalate, copolyesters PETG or polymetylmethacrylate.
From above-mentioned to description of the present utility model, compared to the prior art, the utility model tool has the following advantages:
One, replaced the use of glue frame by light guide plate, reduce the thickness of backlight source module, make it more frivolous;
Two, adopt LED plug-in unit, LED quantity is reduced, reduces cost cost;
Three, consumed power and the caloric value of product is reduced;
Four, the overall performance of product is stablized, and illumination effect is well-balanced, goes out light quality high.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side view of existing backlight source module;
Fig. 2 is top view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is the side view of the utility model reflectance coating.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of backlight source module as shown in Figures 2 to 4, comprise light guide plate 1, diffusion barrier 2, reflectance coating 3 and LED plug-in unit 4, the model of diffusion barrier 2 is AJ100, diffusion barrier 2 covers the upper surface of light guide plate 1, the forward and backward two ends of diffusion barrier 2 are equipped with photomask 21, and reflectance coating 3 covers the lower surface of light guide plate 1, and light guide plate 1 lower surface is provided with locating dowel 11, LED plug-in unit 4 is installed in light guide plate 1, and the periphery of light guide plate 1 is provided with bound edge film.
Model is the diffusion barrier 2 of AJ100 is form vision difference to reach diffusion effect with micro-structural principle, and not dry linting, also regardless of positive and negative incidence surface.This diffusion barrier 2 have passed hot and humid test and cold shock testing completely, meets ROSH environmental requirement.The light transmission of this diffusion barrier 2 is even, stay in grade, without black-white point, can cover stain residual on light guide plate 1.
Backlight source module also comprises bright enhancement film, and bright enhancement film covers the upper surface of diffusion barrier 2, light can be made like this to assemble to user with optimal angle, optimize out light quality.
In order to the installation of adaptive key of liquid crystal display, in the middle part of light guide plate 1 rear end of this embodiment, offer arc groove 12.
The material of light guide plate 1 has multiple, and the light guide plate 1 of this embodiment is made for polymethyl methacrylate or makrolon material.Polymethyl methacrylate has the features such as good light transmission and energy saving, and its light transmittance is up to 93%, and printing opacity is splendid, and light is soft, dazzling, and use cost is lower.Merlon water white transparency, heat-resisting, shock resistance, has the characteristics such as good light transmission.Above bi-material is existing base material and all can be used as the material of light guide plate 1, and what be conducive to raising backlight source module goes out light quality.
In order to make four limit shadings of diffusion barrier 2, middle bright dipping, what ensure product goes out light quality, and photomask 21 covers on the edge of diffusion barrier 2.The photomask 21 of this embodiment is adhesive photomask, makes diffusion barrier 2 stick in the upper surface of light guide plate 1 securely with this.
Reflectance coating 3 can have multiple, and can be specifically that the model of reflectance coating 3 is RW100, its lamina membranacea 3 material be polyethylene terephtalate, surface can be used for printing, thickness and mating plate thickness are respectively 100 μm and 0.1mm, have reflectivity high, without characteristics such as stains; Can also be that reflectance coating 3 comprises the plane of reflection and reflective concave convex surface, reflective concave convex surface is connected with the plane of reflection, reflective concave convex surface relative reflection plane is overshooting shape, the relative like this reflective surface area adding reflectance coating, make light can in less space more abundant mixed light, obtain better light mixing effect.Wherein, the material of the preferred plane of reflection comprises polycarbonate, polyvinylchloride, polyethylene terephtalate, copolyesters PETG or polymetylmethacrylate.Its effect be by the light injected with larger angular dispersed, namely add the angle of bright dipping, thus can under less light mixing distance uniform mixed light.
Operation principle of the present utility model: light guide plate 1 can be arranged on specified location by locating dowel 11, light launched by LED plug-in unit 4 in light guide plate 1, the light that a part is launched is through diffusion barrier 2 bright dipping, the light of other parts is subject to the effect of photomask 21, reflectance coating 3 and bound edge film, make the light of this part in light guide plate 1 after abundant mixed light, again by diffusion barrier 2 bright dipping, thus forming surface light source.
The utility model has following several advantage:
One, replaced the use of glue frame by light guide plate 1, reduce the thickness of backlight source module, make it more frivolous;
Two, adopt LED plug-in unit 4, LED quantity is reduced, reduces cost cost;
Three, consumed power and the caloric value of product is reduced;
Four, the overall performance of product is stablized, and illumination effect is well-balanced, goes out light quality high.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (9)
1. a backlight source module, it is characterized in that: comprise light guide plate, diffusion barrier, reflectance coating and LED plug-in unit, the model of diffusion barrier is AJ100, diffusion barrier covers the upper surface of light guide plate, the forward and backward two ends of diffusion barrier are equipped with photomask, and reflectance coating covers the lower surface of light guide plate, and light guide plate lower surface is provided with locating dowel, LED plug-in unit is installed in light guide plate, and the periphery of light guide plate is provided with bound edge film.
2. a kind of backlight source module as claimed in claim 1, is characterized in that: also comprise bright enhancement film, and bright enhancement film covers the upper surface of described diffusion barrier.
3. a kind of backlight source module as claimed in claim 1, is characterized in that: offer arc groove in the middle part of described light guide plate rear end.
4. a kind of backlight source module as claimed in claim 1, is characterized in that: described light guide plate is that polymethyl methacrylate or makrolon material are made.
5. a kind of backlight source module as claimed in claim 1, is characterized in that: described photomask covers on the edge of diffusion barrier.
6. a kind of backlight source module as claimed in claim 1, is characterized in that: described photomask is adhesive photomask.
7. a kind of backlight source module as claimed in claim 1, is characterized in that: described reflectance coating model is RW100.
8. a kind of backlight source module as claimed in claim 1, is characterized in that: described reflectance coating comprises the plane of reflection and reflective concave convex surface, and reflective concave convex surface is connected with the plane of reflection, and reflective concave convex surface relative reflection plane is overshooting shape.
9. a kind of backlight source module as claimed in claim 8, is characterized in that: the material of the described plane of reflection comprises polycarbonate, polyvinylchloride, polyethylene terephtalate, copolyesters PETG or polymetylmethacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505588.1U CN204176364U (en) | 2014-09-03 | 2014-09-03 | A kind of backlight source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505588.1U CN204176364U (en) | 2014-09-03 | 2014-09-03 | A kind of backlight source module |
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| Publication Number | Publication Date |
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| CN204176364U true CN204176364U (en) | 2015-02-25 |
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| CN201420505588.1U Active CN204176364U (en) | 2014-09-03 | 2014-09-03 | A kind of backlight source module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757476A (en) * | 2016-03-28 | 2016-07-13 | 广州维思车用部件有限公司 | LED light-emitting module, lighting device and light-emitting method of LED light-emitting module |
-
2014
- 2014-09-03 CN CN201420505588.1U patent/CN204176364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757476A (en) * | 2016-03-28 | 2016-07-13 | 广州维思车用部件有限公司 | LED light-emitting module, lighting device and light-emitting method of LED light-emitting module |
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| GR01 | Patent grant |