CN101726922A - Backlight module for liquid crystal display - Google Patents
Backlight module for liquid crystal display Download PDFInfo
- Publication number
- CN101726922A CN101726922A CN200910188998A CN200910188998A CN101726922A CN 101726922 A CN101726922 A CN 101726922A CN 200910188998 A CN200910188998 A CN 200910188998A CN 200910188998 A CN200910188998 A CN 200910188998A CN 101726922 A CN101726922 A CN 101726922A
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- CN
- China
- Prior art keywords
- postnotum
- module
- liquid crystal
- joint pin
- pilot hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 33
- 230000004888 barrier function Effects 0.000 claims description 20
- 238000009792 diffusion process Methods 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 6
- 239000012788 optical film Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
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Abstract
The invention discloses a backlight module for a liquid crystal display, which comprises a front frame, a rear backplate and an optical module arranged between the front frame and the rear backplate; and the backlight module is characterized in that: one end of the optical module is provided with at least one positioning hole; and a connecting post which is arranged between the front frame and the rear backplate passes through the positioning hole. Because one end of the optical module is provided with the at least one positioning hole, and the connecting post passes through the positioning hole and then is fixed with the front frame and the rear backplate, all optical modules can be uniformly stressed and naturally extended depending on self-gravitation, and can move freely on the surface of the connecting post after temperature distortion. Therefore, the backlight module is not limited by the thickness of the optical modules, the assembly structure is simplified, the distortion Moire is prevented and further the quality of image display is improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of backlight liquid crystal display module.
Background technology
Along with development of science and technology, lcd technology is more and more ripe.The assembly structure of the module backlight of conventional liquid crystal, the general fixing various optical film materials of mode that adopt engaging as shown in Figure 1, are provided with buckle 101 and joint pin 102 at module side backlight, when assembling, engage with joint pin 102 by buckle 101.Though this assembly structure is more firm, require various optical film materials that enough thickness must be arranged.In the process that LCD is used, owing to optical film material is heated, and the discontinuity of optical film material, be easy to have a strong impact on the effect of video-see at the positive bright dark display defect of wave that produces of display.
Thereby the assembly structure of existing module backlight is still waiting to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of backlight liquid crystal display module, can improve the image displaying quality of module backlight.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of backlight liquid crystal display module comprises preceding window frame, postnotum and be arranged on described before optical module between window frame and the postnotum, it is characterized in that, be provided with at least one pilot hole at an end of described optical module; And a joint pin be arranged between described preceding window frame and the described postnotum, and described joint pin passes described pilot hole.
Described module backlight, wherein, described optical module comprises liquid crystal panel, first diffusion barrier, prismatic lens, second diffusion barrier and diffuser plate, a side of window frame before described liquid crystal panel is arranged on, described diffuser plate is arranged on a side of described postnotum, and described first diffusion barrier, prismatic lens and second diffusion barrier are successively set between described liquid crystal panel and the diffuser plate.
Described module backlight, wherein, described pilot hole is made as three, and corresponding described joint pin is set is parallel three.
Described module backlight, wherein, described pilot hole is a rectangle.
Described module backlight, wherein, the cross section of described joint pin is the rectangle corresponding with described pilot hole.
Described module backlight, wherein, described joint pin is provided with a through hole, and a bolt, and is suitable with described through hole, is used for fixing described preceding window frame, postnotum.
Described module backlight wherein, is provided with packing ring between the top of described diffuser plate and bottom and postnotum, be used to keep the spacing between described optical module and the described postnotum.
Described module backlight, wherein, described postnotum is provided with a plurality of LED lamps.
Described module backlight, wherein, it is the LED lamp of white light that described LED lamp adopts emergent ray.
Module backlight provided by the invention, owing to adopt a end that at least one pilot hole is set at optical module, and adopt a joint pin to pass this pilot hole and front panel and postnotum and fix, all optical modules can be evenly stressed and be relied on self gravitation to stretch naturally, also can move freely after the temperature distortion on the joint pin surface, thereby module backlight can not be subjected to the optical module thickness limits, simplify package assembly, prevent the generation of the folded line of deformation, further improved the quality that image shows.
Description of drawings
Fig. 1 is the structural representation of prior art module backlight;
Fig. 2 is the one-piece construction synoptic diagram of the present invention's module backlight;
Fig. 3 is the cross-sectional view at A-A place among Fig. 2;
Fig. 4 is the Facad structure synoptic diagram of optical module of the present invention.
Embodiment
The invention provides a kind of backlight liquid crystal display module, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, below with reference to accompanying drawing and give an actual example that the present invention is described in more detail.
See also Fig. 2 to Fig. 4, module backlight of the present invention comprises preceding window frame 210, optical module 220 postnotums 230 and joint pin 240.Optical module 220 is arranged between preceding window frame 210 and the postnotum 230.
End at described optical module 230 is provided with at least one pilot hole 250, for example this pilot hole is arranged on the top of optical module, described joint pin 240 passes described pilot hole 250, and fixing with described preceding window frame 210 and postnotum 230 by described joint pin 240.
The present invention adopts and at the top of optical module one end pilot hole is set, and pass the assembly structure that pilot hole and front panel are fixedlyed connected with postnotum by joint pin, simplified the packaging technology of module backlight, and can on described joint pin, move when optical module is subjected to thermal deformation, improve image displaying quality.
Please continue to consult Fig. 3, optical module of the present invention comprises liquid crystal panel 221, first diffusion barrier 222, prismatic lens 223, second diffusion barrier 224 and diffuser plate 225, and is followed successively by diffuser plate 225, second diffusion barrier 224, prismatic lens 223, first diffusion barrier 222, liquid crystal panel 221 according to the exit direction of light.Be the rear side end face of window frame before described liquid crystal panel 221 is arranged on, diffuser plate 225 is arranged on the anterior end surface of postnotum, is disposed with first diffusion barrier 222, prismatic lens 223, second diffusion barrier 224 between liquid crystal panel 221 and diffuser plate 225.
Arrange setting by certain spacing between the liquid crystal panel 221 of optical module, first diffusion barrier 222, prismatic lens 223, second diffusion barrier 224 and the diffuser plate 225, when module backlight uses, optical module meeting temperature distortion, each optical film material can be stretched in spacing range, also can on joint pin, move.
Please continue to consult Fig. 3 and Fig. 4, described pilot hole 250 preferably is made as three, and corresponding described joint pin 240 be arranged in parallel, specifically described pilot hole can be separately positioned on the both sides and the centre on optical module 220 tops.In the present embodiment, described pilot hole 250 be made as rectangle, the cross section of joint pin also is made as and the corresponding rectangle of pilot hole, and forms clearance fit.Can make liquid crystal panel 221, first diffusion barrier 222, prismatic lens 223, second diffusion barrier 224 and diffuser plate 225 stressed even like this, and rely on himself gravity to stretch naturally, can move freely on the joint pin surface after the temperature distortion, and the assembling of module backlight can not be subjected to the thickness limits of optical module, simplify package assembly, prevented the generation of the folded line of module deformation backlight.
In the present embodiment, the no pixel region of enough offering pilot hole 250 is arranged, so just can not influence the display effect of liquid crystal panel in the top design of liquid crystal panel 221.Diffuser plate 225 has homogenising plane display brightness and supports the effect of other optical modules, and first diffusion barrier and second diffusion barrier are mainly used in the unevenness of covering back side brightness once more, forms uniform output intensity and distributes; Described prismatic lens 223 is used to gather the bigger light of off-normal orientation angle, improves positive apparent brightness, makes LCD reach optimum display effect.
Wherein, postnotum is provided with a plurality of LED lamps 280, and it is the LED lamp of white light that described LED lamp adopts emergent light, and also can adopt emergent light is the LED lamp of three primary colours light, and the LED lamp is become the discrete setting of three primary colours.
Module backlight of the present invention, joint pin are provided with a through hole (not marking among the figure), and described module backlight comprises bolt 260, described bolt 260 is suitable with described through hole, with window frame 210 before described, postnotum 230 is fixing, constitutes the supporting framework of module backlight.
Same, the preceding window frame of backlight film group of the present invention, joint pin and postnotum also can adopt the engaging mode of elasticity draw-in groove when assembling.
Please continue to consult Fig. 3, between the two ends of described diffuser plate and postnotum, be provided with a plurality of packing rings 270, described packing ring 270 makes the spacing that is maintained fixed between optical module 220 and the postnotum 230, makes optical module and postnotum keeping parallelism, further improves the display quality of module backlight.
Further, the bottom of described preceding window frame and postnotum correspondence respectively is provided with a through hole, and described preceding window frame and postnotum insert described through hole respectively by bolt 290 and fix.
Module backlight of the present invention is provided with at least one pilot hole owing to adopt at the top of optical module one end, and adopts joint pin to insert this pilot hole and front panel and postnotum and fix, and it is simple for assembly process, and has improved the quality that image shows; Make the stressed even of each described optical film material simultaneously, and rely on himself gravity to stretch naturally, can move freely on the joint pin surface after the temperature distortion, and the assembling of module backlight can not be subjected to the thickness limits of optical module, simplify package assembly, prevented the generation of the folded line of module deformation backlight.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (9)
1. a backlight liquid crystal display module comprises preceding window frame, postnotum and be arranged on described before optical module between window frame and the postnotum, it is characterized in that, be provided with at least one pilot hole at an end of described optical module; And a joint pin be arranged between described preceding window frame and the described postnotum, and described joint pin passes described pilot hole.
2. module backlight according to claim 1, it is characterized in that, described optical module comprises liquid crystal panel, first diffusion barrier, prismatic lens, second diffusion barrier and diffuser plate, a side of window frame before described liquid crystal panel is arranged on, described diffuser plate is arranged on a side of described postnotum, and described first diffusion barrier, prismatic lens and second diffusion barrier are successively set between described liquid crystal panel and the diffuser plate.
3. module backlight according to claim 1 is characterized in that, described pilot hole is made as three, and corresponding described joint pin is set is parallel three.
4. according to each described module backlight of claim 1 to 3, it is characterized in that described pilot hole is a rectangle.
5. module backlight according to claim 4 is characterized in that, the cross section of described joint pin is the rectangle corresponding with described pilot hole.
6. module backlight according to claim 5 is characterized in that described joint pin is provided with a through hole, and a bolt, and is suitable with described through hole, is used for fixing described preceding window frame, postnotum.
7. module backlight according to claim 2 is characterized in that, is provided with packing ring between the top of described diffuser plate and bottom and postnotum, is used to keep the spacing between described optical module and the described postnotum.
8. module backlight according to claim 2 is characterized in that, described postnotum is provided with a plurality of LED lamps.
9. module backlight according to claim 8 is characterized in that, it is the LED lamp of white light that described LED lamp adopts emergent ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188998A CN101726922A (en) | 2009-12-18 | 2009-12-18 | Backlight module for liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188998A CN101726922A (en) | 2009-12-18 | 2009-12-18 | Backlight module for liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101726922A true CN101726922A (en) | 2010-06-09 |
Family
ID=42448001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910188998A Pending CN101726922A (en) | 2009-12-18 | 2009-12-18 | Backlight module for liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101726922A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000258757A (en) * | 1999-03-11 | 2000-09-22 | Seiko Epson Corp | Electro-optic device and electronic instrument |
| CN1361446A (en) * | 2000-12-25 | 2002-07-31 | 株式会社日立制作所 | Liquid crystal display device |
| CN1800940A (en) * | 2005-01-05 | 2006-07-12 | 统宝光电股份有限公司 | Liquid crystal display module assembly and backlight module assembly |
-
2009
- 2009-12-18 CN CN200910188998A patent/CN101726922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000258757A (en) * | 1999-03-11 | 2000-09-22 | Seiko Epson Corp | Electro-optic device and electronic instrument |
| CN1361446A (en) * | 2000-12-25 | 2002-07-31 | 株式会社日立制作所 | Liquid crystal display device |
| CN1800940A (en) * | 2005-01-05 | 2006-07-12 | 统宝光电股份有限公司 | Liquid crystal display module assembly and backlight module assembly |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100609 |