CN102261606A - Liquid crystal backlight module - Google Patents
Liquid crystal backlight module Download PDFInfo
- Publication number
- CN102261606A CN102261606A CN2011101939371A CN201110193937A CN102261606A CN 102261606 A CN102261606 A CN 102261606A CN 2011101939371 A CN2011101939371 A CN 2011101939371A CN 201110193937 A CN201110193937 A CN 201110193937A CN 102261606 A CN102261606 A CN 102261606A
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- surrounding edge
- edge portion
- glassy layer
- backlight module
- mcpet
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Abstract
The invention discloses a liquid crystal backlight module which comprises a glass layer, an optical layer, a light guide plate and an MCPET (micro cellular polyethylene terephthalate) plate which are laminated sequentially, wherein the light guide plate is provided with a light emitting source; the optical layer, the glass layer, the light guide plate and the MCPET plate are laminated into a whole; the peripheral edge of the whole is provided with fixing devices which are used for fixing the whole and shielding light; each fixing device comprises a surrounding edge part which is adhered to and covers the peripheral edge of the whole, the surrounding edge part rolls towards the glass layer to form a first rolling edge, and the surrounding edge part rolls towards the MCPET plate to form a second rolling edge; and the fixing devices are used for overlapping and fixing the whole, and the fixing devices are made of a light-proof material. The structure is adopted for the backlight module, and the backlight module has the following advantages: light leakage is reduced, and the reflection rate is improved by about 3-8%; an iron frame, a glue frame, the optical layer and a light shade in the prior art are replaced, so the module weight is reduced by 25% compared with that in the prior art; and the thickness is reduced, and the backlight module better accords with the requirements of the public.
Description
Technical field
The present invention relates to a kind of LCD backlight module.
Background technology
Slimming along with LCD, light-weighted continuous demand, and compoundization of keeping under the prerequisite of the brilliant degree and the uniformity module backlight of assembly is necessary trend, traditional product structure as shown in Figure 1, comprise the preceding chase 9 that stacks gradually in the module backlight, glassy layer 4, optical layers 3, LGP 2, reflective sheet 10, plastic parts frame 11, with back chase 12, this structural thickness and weight are big, do not meet the requirement of LCD lightness, this structure can't effectively make product LGP 2 simultaneously, optical layers 3 and glassy layer 4 tightly cooperate, and have light leakage phenomena to exist.
Summary of the invention
The purpose of this invention is to provide a kind of LCD backlight module, the LCD backlight module solves light leakage phenomena effectively when lightening with attenuation.
For achieving the above object, the invention provides a kind of LCD backlight module, it comprises glassy layer, optical layers, LGP, the MCPET plate that is cascading, described LGP is provided with light emitting source, described optical layers, described glassy layer, described LGP and described MCPET flaggy poststack form an integral body, and this whole edge is provided with the fixture that is used for overall fixed and shield light.
Preferably, described fixture comprises the surrounding edge portion that pastes mutually with the outer rim of described integral body, described surrounding edge portion forms first flanging to described glassy layer turnover, described surrounding edge portion turns down on described MCPET plate and forms second flanging, described fixture is with described whole parcel and fixing, and described fixture is light tight material.
Preferably, described fixture is to be used for just described whole parcel and fixing black belt, this black belt comprises the adhesive tape surrounding edge portion that pastes mutually with the outer rim of described integral body, described adhesive tape surrounding edge portion is to described glassy layer turnover and paste on the surface of described glassy layer forming the 3rd flanging, and described adhesive tape surrounding edge portion is to described MCPET plate turnover and paste on described MCPET plate surface to form the 4th flanging.
Preferably, described fixture is to be used for described whole parcel and fixing metal frame, this metal frame comprises the metal surrounding edge portion that pastes mutually with the outer rim of described integral body, described metal surrounding edge portion to described glassy layer turnover and with described glassy layer the 5th flanging of clamping mutually, described metal surrounding edge portion to described MCPET plate turnover and with described MCPET plate the 6th flanging of clamping mutually.
Preferably, be covered with diaphragm on the outer surface of described glassy layer.
The present invention adopts above structure, has the following advantages:
A. reduced light leak, reflectivity improves about 3～8%;
B. substitute chase, glue frame, optical layers, the lampshade of prior art, so module weight ratio prior art reduces by 25%;
C. thickness reduces, and more meets popular demand.
Description of drawings
Accompanying drawing 1 is the structural representation of traditional module backlight.
Accompanying drawing 2 is first kind of structural representation of the present invention.
Accompanying drawing 3 is partial enlarged views of first kind of structure of the present invention.
Accompanying drawing 4 is second kind of structural representation of the present invention.
Accompanying drawing 5 is local enlarged diagrams of second kind of structure of the present invention.
In the accompanying drawing: 1, MCPET plate; 2, LGP; 3, optical layers; 4, glassy layer; 5, diaphragm; 6, light emitting source; 7, black tape; 71, adhesive tape surrounding edge portion; 72, the 3rd flanging; 73, the 4th flanging; 8, metal frame; 81, metal surrounding edge portion; 82, the 5th flanging; 83, the 6th flanging; 9, preceding chase; 10, reflective sheet; 11, plastic parts frame; 12, back chase.
The specific embodiment
Below in conjunction with one of accompanying drawing 1-5 preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be those skilled in the art will recognize that.
Be little foaming reflecting plate, adopt PET (polyethylene Terephthalate) to be the base material processing procedure that foams.3%), light and handy, anti-drop impact, can bear high temperature, still can keep shape, can utilize the waste treatment of PET resource way of recycling, material not to use harmful raw material, surface to have high flatness under 160 degree Celsius MCPET has following advantage: outstanding reflective character (99% above total reflectivity, diffuse reflectance: specular reflectivity 96%:.Aspect secondary operations, can utilize cut, the mode of punching press, bending, heating or the like carries out moulding.In addition, because therefore the excellent characteristic of MCPET material can both keep homogeneity for the albedo of each wavelength light source, under the situation for the reflection original light source requirements that high request is arranged, more can bring into play its speciality.
A kind of LCD backlight module, it comprises glassy layer 4, optical layers 3, LGP 2, the MCPET plate 1 that is cascading, described LGP 2 is provided with light emitting source 6, described optical layers 3, described glassy layer 4, described LGP 2 and described MCPET plate 1 stacked back form an integral body, and this whole edge is provided with the fixture that is used for overall fixed and shield light.
Described fixture comprises the surrounding edge portion that pastes mutually with the outer rim of described integral body, described surrounding edge portion forms first flanging to described glassy layer 4 turnovers, described surrounding edge portion turns down on described MCPET plate 1 and forms second flanging, described fixture is with described whole parcel and fixing, and described fixture is light tight material.
Described fixture is to be used for just described whole parcel and fixing black belt, this black belt comprises the adhesive tape surrounding edge portion 71 that pastes mutually with the outer rim of described integral body, described adhesive tape surrounding edge portion 71 is to described glassy layer 4 turnovers and paste on the surface of described glassy layer 4 forming the 3rd flanging 72, and described adhesive tape surrounding edge portion 71 is to described MCPET plate 1 turnover and paste on described MCPET plate 1 surface to form the 4th flanging 73.
Described fixture is to be used for described whole parcel and fixing metal frame 8, this metal frame 8 comprises the metal surrounding edge portion 81 that pastes mutually with the outer rim of described integral body, described metal surrounding edge portion 81 to described glassy layer 4 turnovers and with described glassy layer 4 the 5th flanging 82 of clamping mutually, described metal surrounding edge portion 81 to described MCPET plate 1 turnover and with described MCPET plate 1 the 6th flanging 83 of clamping mutually.
Be covered with diaphragm 5 on the outer surface of described glassy layer 4.
The major function of LGP 2 transfers planar light extracting to for the light source that the guiding side enters.
The popularization of new material can provide outstanding reflective character and high plasticity, when being used in illumination, can reduce the power consumption more than 40%, more environmental protection.MCPET material briliancy is higher, can make product brighter, and cost saving aspect packing and transportation will reduce whole cost simultaneously.
Fixture comprises the surrounding edge portion that pastes mutually with the outer rim of described integral body, described surrounding edge portion forms first flanging to described glassy layer 4 turnovers, described surrounding edge portion turns down on described MCPET plate 1 and forms second flanging, described fixture is with described whole parcel and fixing, and fixture is light tight material.Therefore fixture is fixed whole LCD backlight module, has reduced light leakage phenomena simultaneously.
The present invention has two kinds of different structures.
As accompanying drawing 2 and first kind of structure shown in Figure 3:
A kind of LCD backlight module, it comprises the glassy layer 4 that is cascading, optical layers 3, LGP 2, MCPET plate 1, described LGP 2 is provided with light emitting source 6, described optical layers 3, described glassy layer 4, described LGP 2 and described MCPET plate 1 stacked back form an integral body, this LCD backlight module comprises that also one is used for just described whole parcel and fixing black belt, this black belt comprises the adhesive tape surrounding edge portion 71 that pastes mutually with the outer rim of described integral body, described adhesive tape surrounding edge portion 71 is to described glassy layer 4 turnovers and paste on the surface of described glassy layer 4 forming the 3rd flanging 72, and described adhesive tape surrounding edge portion 71 is to described MCPET plate 1 turnover and paste on described MCPET plate 1 surface to form the 4th flanging 73.
Adhesive tape surrounding edge portion 71 has limited the thickness of the integral body that optical layers 3, glassy layer 4, LGP 2 and MCPET plate 1 form, and the 3rd flanging 72 and the 4th flanging 73 are with this overall fixed bonding.Because black has certain light-proofness, so light can not spill from the edge.
As accompanying drawing 4 and second kind of structure shown in Figure 5:
A kind of LCD backlight module, it comprises the glassy layer 4 that is cascading, optical layers 3, LGP 2, MCPET plate 1, described LGP 2 is provided with light emitting source 6, described optical layers 3, described glassy layer 4, described LGP 2 and described MCPET plate 1 stacked back form an integral body, metal frame 8 comprises the metal surrounding edge portion 81 that pastes mutually with the outer rim of described integral body, described metal surrounding edge portion 81 to described glassy layer 4 turnovers and with described glassy layer 4 the 5th flanging 82 of clamping mutually, described metal surrounding edge portion 81 to described MCPET plate 1 turnover and with described MCPET plate 1 the 6th flanging 83 of clamping mutually.
Metal surrounding edge portion 81 has limited the thickness of the integral body that optical layers 3, glassy layer 4, LGP 2 and MCPET plate 1 form, and the 5th flanging 82 and the 6th flanging 83 are with this overall fixed clamping.Because metal has certain light-proofness, so light can not spill from the edge.
The present invention adopts above structure, has the following advantages:
A. reduced light leak, reflectivity improves about 3～8%;
B. substitute chase, glue frame, optical layers 3, the lampshade of prior art, so module weight ratio prior art reduces by 25%;
C. thickness reduces, and more meets popular demand.
More than specific embodiment of the present invention is illustrated in conjunction with diagram, clearly, on the basis of not leaving scope and spirit of the present invention, can much revise prior art and technology.In the technical field, the common knowledge of a GPRS just can be carried out diversified change in technology main idea scope of the present invention under of the present invention.
Claims (5)
1. LCD backlight module, it is characterized in that: it comprises glassy layer, optical layers, LGP, the MCPET plate that is cascading, described LGP is provided with light emitting source, described optical layers, described glassy layer, described LGP and described MCPET flaggy poststack form an integral body, and this whole edge is provided with the fixture that is used for overall fixed and shield light.
2. LCD backlight module according to claim 1, described fixture comprises the surrounding edge portion that pastes mutually with the outer rim of described integral body, described surrounding edge portion forms first flanging to described glassy layer turnover, described surrounding edge portion turns down on described MCPET plate and forms second flanging, described fixture is with described whole parcel and fixing, and described fixture is light tight material.
3. LCD backlight module according to claim 1, it is characterized in that: described fixture is the black belt that is used for just described whole parcel and bonding, this black belt comprises the adhesive tape surrounding edge portion that pastes mutually with the outer rim of described integral body, described adhesive tape surrounding edge portion is to described glassy layer turnover and paste on the surface of described glassy layer forming the 3rd flanging, and described adhesive tape surrounding edge portion is to described MCPET plate turnover and paste on described MCPET plate surface to form the 4th flanging.
4. LCD backlight module according to claim 1, it is characterized in that: described fixture is to be used for described whole parcel and fixing metal frame, this metal frame comprises the metal surrounding edge portion that pastes mutually with the outer rim of described integral body, described metal surrounding edge portion to described glassy layer turnover and with described glassy layer the 5th flanging of clamping mutually, described metal surrounding edge portion to described MCPET plate turnover and with described MCPET plate the 6th flanging of clamping mutually.
5. LCD backlight module according to claim 1 is characterized in that: be covered with diaphragm on the outer surface of described glassy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101939371A CN102261606A (en) | 2011-07-12 | 2011-07-12 | Liquid crystal backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101939371A CN102261606A (en) | 2011-07-12 | 2011-07-12 | Liquid crystal backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261606A true CN102261606A (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101939371A Pending CN102261606A (en) | 2011-07-12 | 2011-07-12 | Liquid crystal backlight module |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006058913A1 (en) * | 2004-12-02 | 2006-06-08 | Tesa Ag | Double-sided pressure-sensitive adhesive tapes for producing lc displays with light-reflective and -absorbing properties |
| CN101859035A (en) * | 2009-04-10 | 2010-10-13 | 达辉(上海)电子有限公司 | Liquid crystal display device and rubber belt applying method thereof |
| CN101922648A (en) * | 2009-06-09 | 2010-12-22 | 友达光电股份有限公司 | Backlight module |
| CN202152964U (en) * | 2011-07-12 | 2012-02-29 | 苏州宏远电子有限公司 | Liquid crystal backlight module |
| CN202158446U (en) * | 2011-07-12 | 2012-03-07 | 苏州宏远电子有限公司 | Liquid crystal backlight module |
-
2011
- 2011-07-12 CN CN2011101939371A patent/CN102261606A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006058913A1 (en) * | 2004-12-02 | 2006-06-08 | Tesa Ag | Double-sided pressure-sensitive adhesive tapes for producing lc displays with light-reflective and -absorbing properties |
| CN101859035A (en) * | 2009-04-10 | 2010-10-13 | 达辉(上海)电子有限公司 | Liquid crystal display device and rubber belt applying method thereof |
| CN101922648A (en) * | 2009-06-09 | 2010-12-22 | 友达光电股份有限公司 | Backlight module |
| CN202152964U (en) * | 2011-07-12 | 2012-02-29 | 苏州宏远电子有限公司 | Liquid crystal backlight module |
| CN202158446U (en) * | 2011-07-12 | 2012-03-07 | 苏州宏远电子有限公司 | Liquid crystal backlight module |
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Application publication date: 20111130 |