CN201298119Y - LCD module - Google Patents
LCD module Download PDFInfo
- Publication number
- CN201298119Y CN201298119Y CNU2008201244573U CN200820124457U CN201298119Y CN 201298119 Y CN201298119 Y CN 201298119Y CN U2008201244573 U CNU2008201244573 U CN U2008201244573U CN 200820124457 U CN200820124457 U CN 200820124457U CN 201298119 Y CN201298119 Y CN 201298119Y
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- liquid crystal
- crystal display
- lcd module
- circuit board
- pcb
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Abstract
The utility model discloses an LCD module, comprising an LCD unit which is clamped between a printed circuit board and a metal frame. A gasket which keeps the stress on the LCD unit even is arranged between the LCD unit and the metal frame. The utility model avoids the undesirable LCD effect caused by the uneven stress on the LCD unit, recues or eliminates rainbow and other undesirable phenomena and improves the pictorial display effect of the LCD module effectively.
Description
Technical field
The utility model relates to lcd technology, particularly relates to a kind of LCD MODULE.
Background technology
LCD MODULE is widely used in notebook computer, mobile phone and various industrial various fields such as display controller owing to have advantages such as the abundant and display effect of cheap, displaying contents is gorgeous.
LCD MODULE generally comprises liquid crystal display, printed circuit board (PCB) (PCB) and housing, wherein liquid crystal display generally comprises with independent framework and is installed in together display panels and module backlight, and generally is to be fixed together by metal framework between liquid crystal display and the printed circuit board (PCB).As shown in Figure 1, be the structural representation of prior art LCD MODULE.As can be seen from Figure, liquid crystal display 1 and printed circuit board (PCB) 2 all are installed in the metal framework 4, the electrical connection that realizes between them by conductive rubber strip 3 between liquid crystal display 1 and the printed circuit board (PCB) 2, and printed circuit board (PCB) 2 is installed on the metal framework 4.Because must relying on metal framework 4 to apply certain pressure, conductive rubber strip 3 could realize electrical connection between printed circuit board (PCB) 2 and the liquid crystal display 1, therefore, metal framework 4 and printed circuit board (PCB) 2 can be pressed in the edge of liquid crystal display 1 after fixing with certain pressure in the prior art, to guarantee good being electrically connected between liquid crystal display 1 and the printed circuit board (PCB) 2.But, because the restriction of mechanical processing technique, big or small uneven projection can appear in the surface of metal framework 4, therefore, the edge of liquid crystal display 1 is subjected to the pressure of metal framework 4 and understands inhomogeneous, and the inhomogeneous meeting of this pressure rainbow etc. occurs and shows badly when the image of liquid crystal display 1 shows, influences the image display effect of whole LCD MODULE.
In addition, because the module backlight of liquid crystal display need disperse and uniform light for display panels provides, show needs with the image that satisfies display panels, therefore, the astigmatic influential effect of module backlight the image display effect of liquid crystal display.As shown in Figure 2, be the principle schematic of prior art module backlight.Module backlight comprises light source 10 and light guide plate 11, wherein, the light of light source 10 enters light guide plate 11 by the side of light guide plate 11, and the light of light guide plate 11 inside enters the display panels that is arranged on the top after treatment, for display panels provides uniform light.In the prior art in order to improve the effect of dispersing of module emergent ray backlight, usually adopt the distance that increases between light source 10 and light guide plate 11 viewing areas, perhaps reach the astigmatic effect that improves light guide plate by the quantity that increases light source 10 fluorescent tubes, but, increase the corresponding size that increases module backlight of distance meeting between light source 10 and light guide plate 11 effective areas, make the volume of whole LCD MODULE increase; And the quantity that increases light source 10 fluorescent tubes easily produces overheated and burn out fluorescent tube, also can increase the production cost of LCD MODULE simultaneously.
As can be seen from the above technical solutions, for guaranteeing the effect that is electrically connected between liquid crystal display and the printed circuit board (PCB), metal framework directly is pressed on the liquid crystal display, the inhomogeneous projection on metal framework surface can cause the liquid crystal display discontinuity, thereby bad phenomenon such as rainbow can appear in liquid crystal display when carrying out the image demonstration, influence the image display effect of liquid crystal display.In addition, in order to improve the astigmatic effect of light guide plate, module backlight of the prior art has increased the volume of LCD MODULE or has increased the production cost of LCD MODULE, is unfavorable for the promotion and application of LCD MODULE.
The utility model content
The purpose of this utility model provides a kind of LCD MODULE, to overcome the defective of prior art, effectively improves the image display effect of LCD MODULE.
For achieving the above object, the utility model provides a kind of LCD MODULE, comprise the liquid crystal display that is folded between printed circuit board (PCB) and the metal framework, be provided with between described liquid crystal display and the metal framework and make the stressed uniform pad of liquid crystal display.
Wherein, described pad has been the elastic buffer pad of elastic buffer effect.Described elastic buffer pad is the silicon rubber pad.Described metal framework is pressed on the front of described liquid crystal display, and described printed circuit board (PCB) is arranged on the back side of described liquid crystal display, and described printed circuit board (PCB) is fixed on the described metal framework.Described printed circuit board (PCB) is respectively arranged with hole clipping on the relative both sides, and described metal framework is provided with and is used to the trip that card is established described hole clipping.
Further, described liquid crystal display comprises display panels and module backlight, and described module backlight comprises light source and light guide plate, and the incidence surface of described light guide plate is the zigzag that incident ray is disperseed.Particularly, described zigzag is made up of the folding face that several connect successively, and adjacent folding mask has 10 °～90 ° angle.
The utility model is by being provided with pad between metal framework and liquid crystal display, make liquid crystal display stressed evenly, avoided liquid crystal display bad because of the demonstration that unbalance stress produces, reduce or eliminate bad phenomenon such as rainbow, effectively improved the image display effect of LCD MODULE.In addition, the utility model also improves the light guide plate in the liquid crystal display, under the prerequisite that does not increase module volume backlight or production cost, make that the light guide plate in the module backlight has better astigmatic effect, improved the image display effect of liquid crystal display further.
Description of drawings
Fig. 1 is the structural representation of prior art LCD MODULE;
Fig. 2 is the principle schematic of prior art module backlight;
Fig. 3 is the structural representation of the utility model LCD MODULE embodiment;
Fig. 4 is the package assembly synoptic diagram of the utility model LCD MODULE;
Fig. 5 is the structural representation of module backlight among the utility model LCD MODULE embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 3 is the structural representation of the utility model LCD MODULE embodiment.Fig. 4 is the package assembly synoptic diagram of the utility model LCD MODULE.The present embodiment LCD MODULE comprises liquid crystal display 1, printed circuit board (PCB) 2 and metal framework 4, wherein, liquid crystal display 1 is made up of display panels and module backlight, the back side of liquid crystal display 1 is provided with the printed circuit board (PCB) 2 that is used to liquid crystal display 1 that driving voltage is provided, liquid crystal display 1 and printed circuit board (PCB) 2 all are installed in the metal framework 4, and printed circuit board (PCB) 2 is fixed on the metal framework 4; Be provided with between liquid crystal display 1 and the metal framework 4 and make liquid crystal display 1 stressed uniform pad 5, metal framework 4 applies certain pressure on liquid crystal display 1 by this pad 5, because the elastic buffer effect of pad 5, the uneven pressure that inhomogeneous projection on the metal framework 4 can be caused disperses, and provide the uniform power of pressure to liquid crystal display 1, the liquid crystal display 1 that can effectively avoid liquid crystal display 1 to cause because of discontinuity rainbow etc. occurs and shows bad when image shows, simultaneously, play the pad 5 of elastic buffer effect by this, liquid crystal display 1 also can avoid the local damage of the liquid crystal display 1 that causes because of unbalance stress bad, has effectively improved the image display effect of liquid crystal display.
In the practical application, electrical connection between printed circuit board (PCB) 2 and the liquid crystal display 1 can be for connecting by flexible circuit board (FPCB) or conductive rubber strip, preferably, adopt in the present embodiment in the mode that conductive rubber strip 3 is set between the electrical connection interface of liquid crystal display 1 and printed circuit board (PCB) 2 and realize electrical connection between liquid crystal display 1 and the printed circuit board (PCB) 2, and printed circuit board (PCB) 2 is provided with the driving circuit that is used to liquid crystal display 1 that drive signal is provided; Metal framework 4 is pressed on the front of liquid crystal display 1, printed circuit board (PCB) 2 is arranged on the back side of liquid crystal display 1, and printed circuit board (PCB) 2 is respectively arranged with hole clipping on the relative both sides, metal framework 4 is provided with the trip that is used to be fastened on printed circuit board (PCB) 2 hole clippings, and printed circuit board (PCB) 2 and metal framework 4 are affixed by trip and hole clipping.
In addition, in actual use, the pad that is arranged between liquid crystal display 1 and the metal framework 4 can adopt the elastic buffer pad, preferably adopts the silicon rubber pad, the perhaps buffering spacer made of other any elastic material, if satisfy can make on the liquid crystal display stressed evenly.
In the utility model LCD MODULE, the printed circuit board (PCB) back side also can be provided with backboard, is used to protect printed circuit board (PCB), further, also can be provided with the containing hole of circuit component on the ccontaining printed circuit board (PCB) on this backboard, and the holding circuit element is avoided damaging.
As can be seen from the above technical solutions, the present embodiment LCD MODULE is by being provided with pad between metal framework and liquid crystal display, make liquid crystal display stressed evenly, avoided liquid crystal display bad because of the liquid crystal display that unbalance stress produces, reduce or eliminate bad phenomenon such as rainbow, effectively improved the image display effect of LCD MODULE.
Fig. 5 is the structural representation of module backlight among the utility model LCD MODULE embodiment.Further, as shown in Figure 5, the liquid crystal display in the present embodiment can comprise module backlight and display panels, and wherein, module backlight is arranged on the back side of display panels, comprises light source 20 and light guide plate 21.Particularly, the light source 20 in this module backlight is arranged on the side of light guide plate 21, is used to light guide plate 21 that incident ray is provided, and light guide plate 21 receives the incidence surface of light source 20 incident raies, and promptly the side of light guide plate 21 is configured such that the zigzag that incident ray disperses.This jagged incidence surface can be made up of several folding faces that connects successively, and adjacent folding mask has 10 °～90 ° angle.
Particularly, the incidence surface of light guide plate 21 is continuous prism-like in the present embodiment, promptly the side of this light guide plate 21 can be regarded as by continuous a plurality of little prism facets and form, because the light guide plate side and the light source 20 most incident raies of this prism-like all have certain included angle, therefore, after every incident ray is mapped to the plane of incidence of little prism, all can under the effect of little prism, disperse, and enter the viewing area 210 of light guide plate 21.As can be seen, after the incident ray of light source through the side of the light guide plate 21 with prism-like, incident ray is upset dispersion by little prism, make the light that enters light guide plate viewing area 210 be uniformly dispersed, improved the astigmatic effect of light guide plate, be that light guide plate can provide uniform more emergent ray to display panels, reduced or eliminated the speck phenomenon that causes because of astigmatism is bad, improve the image display effect of display panels.
As seen from Figure 5, zigzag is arranged in the side of light guide plate, under light source fluorescent tube quantity and light source and the constant situation of light guide plate distance, make that the light that enters the light guide plate viewing area is more, light is more even, has effectively improved the astigmatic effect of light guide plate, has reduced or eliminated the generation of speck, improve the light effect that of module backlight, improved the image display effect of LCD MODULE further.
In addition, the light source in the present embodiment also can be arranged on light guide plate below, correspondingly, the lower surface of light guide plate also can be set to zigzag that incident ray is dispersed, to improve the astigmatic effect of light guide plate.Light source in the module backlight can be pointolite or line source, preferably, adopts line source in the present embodiment.
Can module backlight and display panels be assembled the formation liquid crystal display by an outside framework (not shown) in the present embodiment.
The incidence surface of the light guide plate in the present embodiment can also be set to have the structure of other shape, as long as satisfy incident ray is disperseed.The jagged light guide plate that incidence surface is set to incident ray is disperseed in the present embodiment can be formed in one, particularly, and can be by the mould ejection formation.
In the present embodiment LCD MODULE, be configured such that the zigzag that incident ray disperses by surface with the incident ray of light guide plate, do not increasing module volume backlight or increasing under the prerequisite of production cost, improved the astigmatic effect of light guide plate, reduced the power consumption of module backlight, reduce or eliminate the generation of speck, improved the image display effect of LCD MODULE further.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (7)
1, a kind of LCD MODULE comprises the liquid crystal display that is folded between printed circuit board (PCB) and the metal framework, it is characterized in that, is provided with between described liquid crystal display and the metal framework to make the stressed uniform pad of liquid crystal display.
2, LCD MODULE according to claim 1 is characterized in that, described pad has been the elastic buffer pad of elastic buffer effect.
3, LCD MODULE according to claim 2 is characterized in that, described elastic buffer pad is the silicon rubber pad.
4, LCD MODULE according to claim 1, it is characterized in that, described metal framework is pressed on the front of described liquid crystal display, and described printed circuit board (PCB) is arranged on the back side of described liquid crystal display, and described printed circuit board (PCB) is fixed on the described metal framework.
5, LCD MODULE according to claim 4 is characterized in that, described printed circuit board (PCB) is respectively arranged with hole clipping on the relative both sides, and described metal framework is provided with and is used to the trip that card is established described hole clipping.
6, according to the described LCD MODULE of arbitrary claim in the claim 1～5, it is characterized in that, described liquid crystal display comprises display panels and module backlight, and described module backlight comprises light source and light guide plate, and the incidence surface of described light guide plate is the zigzag that incident ray is disperseed.
7, LCD MODULE according to claim 6 is characterized in that, described zigzag is made up of the folding face that several connect successively, and adjacent folding mask has 10 °～90 ° angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244573U CN201298119Y (en) | 2008-12-10 | 2008-12-10 | LCD module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244573U CN201298119Y (en) | 2008-12-10 | 2008-12-10 | LCD module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298119Y true CN201298119Y (en) | 2009-08-26 |
Family
ID=41044102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201244573U Expired - Fee Related CN201298119Y (en) | 2008-12-10 | 2008-12-10 | LCD module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298119Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597605A (en) * | 2009-11-09 | 2012-07-18 | 三菱电机株式会社 | Surface light source apparatus and display apparatus using same |
| CN102900919A (en) * | 2012-10-15 | 2013-01-30 | 京东方科技集团股份有限公司 | Testing table used for display device |
| CN102943975A (en) * | 2012-11-05 | 2013-02-27 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN109679521A (en) * | 2018-11-09 | 2019-04-26 | 李梅 | A kind of LCP glue film and preparation method thereof for FPC industry |
-
2008
- 2008-12-10 CN CNU2008201244573U patent/CN201298119Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597605A (en) * | 2009-11-09 | 2012-07-18 | 三菱电机株式会社 | Surface light source apparatus and display apparatus using same |
| CN102597605B (en) * | 2009-11-09 | 2016-02-10 | 三菱电机株式会社 | Surface light source apparatus and use its display unit |
| US9274265B2 (en) | 2009-11-09 | 2016-03-01 | Mitsubishi Electric Corporation | Surface light source apparatus and display apparatus using same |
| CN102900919A (en) * | 2012-10-15 | 2013-01-30 | 京东方科技集团股份有限公司 | Testing table used for display device |
| CN102900919B (en) * | 2012-10-15 | 2015-01-28 | 京东方科技集团股份有限公司 | Testing table used for display device |
| CN102943975A (en) * | 2012-11-05 | 2013-02-27 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN102943975B (en) * | 2012-11-05 | 2015-11-25 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN109679521A (en) * | 2018-11-09 | 2019-04-26 | 李梅 | A kind of LCP glue film and preparation method thereof for FPC industry |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20161210 |