CN1553257A - Light negative module liquid-crystal displaying device - Google Patents
Light negative module liquid-crystal displaying device Download PDFInfo
- Publication number
- CN1553257A CN1553257A CNA031370055A CN03137005A CN1553257A CN 1553257 A CN1553257 A CN 1553257A CN A031370055 A CNA031370055 A CN A031370055A CN 03137005 A CN03137005 A CN 03137005A CN 1553257 A CN1553257 A CN 1553257A
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- backlight module
- diffuser plate
- lamp source
- disposed
- framework
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Abstract
A back light module which comprises a frame, a reflection plate, at least one lamp, a diffusion plate and multiple optical film sheet is featured as the follows, reflection plate is placed at bottom of frame, lamp is placed in frame and above reflection plate, diffusion plate is located on frame and above lamp with its thickness being at 4.1 mm to 15 mm, optical film sheet is placed on diffusion plate. The problem of diffusion plate deformation in big size liquid crystal display can be solved by greater thickness of diffusion plate in the back light module.
Description
Technical field
The invention relates to a kind of backlight module (Back Light Module) and LCD (Liquid Crystal Display, LCD), and particularly relevant for a kind of backlight module and the LCD that can avoid the diffuser plate buckling deformation.
Background technology
In order to cooperate modern life pattern, it is frivolous that the volume of video or device for image day by day is tending towards.Traditional cathode-ray tube (CRT) though still have its advantage, because the structure in internal electron chamber, makes that display is bulky and takes up space, and still has radiant rays to hinder problems such as eye when showing.Therefore, the plane formula display (Flat PanelDisplay) that cooperates photoelectric technology and semiconductor fabrication to be developed, for example LCD (LCD), organic light emitting display (OLED) or plasma scope (Plasma Display Panel, PDP), become the main flow of display product gradually.
From the above, with regard to LCD, utilize kenel can slightly be divided into three kinds of reflective liquid-crystal display (reflective LCD), penetrating LCD (transmissive LCD) and semi-penetrated semi-reflected liquid crystal displays according to its lamp source.With the penetration or the LCD of semi-penetration, semi-reflective is example, it mainly is made of a liquid crystal panel and a backlight module, wherein, liquid crystal panel is made of the liquid crystal layer that two transparency carriers and are disposed between this two transparency carrier, and backlight module is in order to provide this liquid crystal panel required face lamp source, so that LCD reaches the effect of demonstration.
LCD has been widely used on mobile phone or the individual digital assistant small size panels such as (PDA).LCD also develops toward large-sized direction gradually at present.Yet,, still exist some manufacture craft problems to have to be overcome for the making of large-sized panel.With the diffuser plate in the backlight module, be used for adjusting the diffuser plate of light source in known manufacture craft, its thickness is usually less than 4 centimetres, but, when the display panels size was big more, the size of diffuser plate also can become greatly thereupon, so, the too thin diffuser plate of thickness easily because of the buckling deformation of rigidity deficiency, and then influences the optical characteristics of backlight module in large-scale display panel.
Though the problem of the buckling deformation of above-mentioned diffuser plate can utilize the acryl flat board of 2～4 centimetres of configurations to solve in the diffuser plate below, so can make manufacture craft originally become more complicated and time-consuming.
Summary of the invention
Therefore, purpose of the present invention just provides a kind of backlight module and LCD, can avoid the diffuser plate buckling deformation, to keep backlight module and LCD good optical characteristic.
The present invention proposes a kind of backlight module, and this backlight module mainly comprises a framework, a reflector plate, at least one lamp source, a diffuser plate and several blooming pieces.Wherein reflector plate is disposed at base of frame, and the lamp source is disposed in the framework, and the lamp source is positioned at the reflector plate top.In addition, diffuser plate is disposed on the framework, and is positioned at lamp source top, and the thickness of diffuser plate is between 4.1 centimetres to 15 centimetres, and in addition, blooming piece is disposed on the diffuser plate.In addition, have at least a supporting member to be disposed between reflector plate and the diffuser plate.
The present invention proposes a kind of LCD, and this LCD mainly comprises a liquid crystal panel and a backlight module.Wherein backlight module comprises a framework, a reflector plate, at least one lamp source, a diffuser plate and several blooming pieces.Wherein reflector plate is disposed at base of frame, and the lamp source is disposed in the framework, and the lamp source is positioned at the reflector plate top.In addition, diffuser plate is disposed on the framework, and is positioned at lamp source top, and the thickness of diffuser plate is between 4.1 centimetres to 15 centimetres, and in addition, blooming piece is disposed on the diffuser plate.In addition, have at least a supporting member to be disposed between reflector plate and the diffuser plate.
From the above, because the present invention disposes thicker diffuser plate on framework, therefore for large-sized LCD, the problem of known diffuser plate buckling deformation can achieve a solution, and then keeps backlight module and LCD good optical characteristic.
In addition, because the present invention does not need other rete (or equipment) of additional configuration just can solve the problem of the diffuser plate buckling deformation of known technology, therefore, the present invention can not increase the step and the manufacture craft cost of manufacture craft.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, elaborate.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the LCD of a preferred embodiment of the present invention, and wherein LCD comprises backlight module and liquid crystal panel.
Description of symbols
100: backlight module 102,114: framework
104: reflector plate 106: the lamp source
108: diffuser plate 110: blooming piece
112: liquid crystal panel 116: supporting member
Embodiment
Backlight module of the present invention can be applicable to large scale and needs on the display of collocation backlight module, and present embodiment is illustrated especially exemplified by going out LCD.
Fig. 1 illustrate is the diagrammatic cross-section of the LCD of a preferred embodiment of the present invention, and wherein this LCD comprises a backlight module and a liquid crystal panel, and this backlight module is the backlight module of straight-down negative.
Please refer to Fig. 1, the LCD of present embodiment comprises backlight module 100 and liquid crystal panel 112, and backlight module 100 mainly is made of a framework 102, a reflector plate 104, at least one lamp source 106, a diffuser plate 108 and a plurality of blooming piece 110.
Wherein, reflector plate 104 is disposed at framework 102 bottoms, and reflector plate 104 is in order to the light that does not radiate towards display panel (not icon) direction in reflectoscope source 106, to improve the utilization ratio in lamp source 106.In addition, reflector plate 104 for example is earlier the inner face of plate objects such as a white coated plate or resin finished product to be carried out uneven surface processing, handles through the special surface of aluminum-based metal, to improve the brightness of reflection source again.
In addition, lamp source 106 is disposed in the framework 102, and lamp source 106 is positioned at reflector plate 104 tops.Wherein lamp source 106 for example is fluorescent tube, bulb, LED lamp source or fluorescent lamp source, and the fluorescent lamp source more for example is straight tube, U word pipe or dull and stereotyped fluorescent lamp.In addition, lamp source 106 for example is by being disposed at lamp source bearing (not illustrating) the fixed light source 106 on the framework 102.
In addition, diffuser plate 108 is disposed on the framework 102 and 106 tops, lamp source, and the thickness of diffuser plate 108 is between 4.1 centimetres to 15 centimetres.Wherein the material of diffuser plate 108 for example is slim acryl (acrylic resin) or polycarbonate resin (polycarbonate), when the direct light of light source 106 and reflected light during by diffuser plate 108, diffuser plate 108 can be with the light average diffusion and present with the form of an area source.
In addition, a plurality of blooming pieces 110 are disposed on the diffuser plate 108, these blooming pieces 110 for example are brightening piece and prismatic lens, and the configuration of these blooming pieces 110 can make the area source of being launched by diffuser plate 108 enter in the liquid crystal panel 112 fully, to improve the utilization ratio in lamp source 106.
In addition, LCD is except above-mentioned backlight module 100, also comprise liquid crystal panel 112, wherein liquid crystal panel 112 for example is general common by thin-film transistor array base-plate (TFTArray), active-matrix formula liquid crystal panel 112 that colored optical filtering substrates and liquid crystal layer constituted, and liquid crystal panel 112 is equipped on the framework 102 of blooming piece 110 tops.In addition, also dispose the edge of another framework 114 with covering liquid crystal panel 112, and liquid crystal panel 112 is fixedly set on the framework 102, its fixed form for example is to grip liquid crystal panel 112 jointly by framework 114 and framework 102, again framework 114 is locked on the framework 102 by screw, to finish the assembling of LCD.
Certainly, in above-mentioned backlight module 100, comprise that also at least one supporting member 116 is disposed between reflector plate 104 and the diffuser plate 108, the material of this supporting member 116 for example is to use transparent material, so that supporting member 116 can not influence the luminous of lamp source 106.
In addition, in order to make light source 106 more average by its brightness of area source that diffuser plate 108 is presented, can also between light source 106 and diffuser plate 108, insert a smooth screen plate (not illustrating),, more can improve the utilization ratio in lamp source 106 so that the brightness of area source is more average.
From the above, backlight module of the present invention (or LCD) is owing to dispose thicker diffuser plate on framework, therefore for large-sized LCD, can solve the problem of known diffuser plate buckling deformation, and then keep backlight module and LCD good optical characteristic.
In addition, the present invention does not dispose other rete (or device) on framework just can solve the problem of the diffuser plate buckling deformation of known technology, therefore, does not need to improve the cost of manufacture craft.
In addition, it will be further appreciated that backlight module of the present invention is not limited on the LCD, the display of other backlight module of need arranging in pairs or groups also can utilize backlight module of the present invention.
Claims (8)
1, a kind of backlight module is characterized in that, comprising:
One framework;
One reflector plate is disposed at this base of frame;
At least one lamp source is disposed in this framework, and this lamp source is positioned at this reflector plate top;
One diffuser plate is disposed on this framework, and this diffuser plate is positioned at this top, lamp source, and the thickness of this diffuser plate is between 4.1 centimetres to 15 centimetres; And
A plurality of blooming pieces are disposed on this diffuser plate.
2, backlight module as claimed in claim 1 is characterized in that, also comprises at least one supporting member, is disposed between this reflector plate and this diffuser plate.
3, backlight module as claimed in claim 1 is characterized in that, this lamp source comprise at least one fluorescent tube and at least one LED lamp source one of them.
4, backlight module as claimed in claim 1 is characterized in that, those blooming pieces comprise brightening piece and prismatic lens.
5, a kind of LCD is characterized in that, comprising:
One display panels; And
One backlight module, this backlight module comprises:
One framework;
One reflector plate is disposed at this base of frame;
At least one lamp source is disposed in this framework, and this lamp source is positioned at this reflector plate top;
One diffuser plate is disposed on this framework, and this diffuser plate is positioned at this top, lamp source, and the thickness of this diffuser plate is between 4.1 centimetres to 15 centimetres; And
A plurality of blooming pieces are disposed on this diffuser plate.
6, backlight module as claimed in claim 5 is characterized in that, also comprises at least one supporting member, is disposed between this reflector plate and this diffuser plate.
7, backlight module as claimed in claim 5 is characterized in that, this lamp source comprises at least one fluorescent tube and at least one LED lamp source.
8, backlight module as claimed in claim 5 is characterized in that, those blooming pieces comprise brightening piece and prismatic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031370055A CN1553257A (en) | 2003-05-28 | 2003-05-28 | Light negative module liquid-crystal displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031370055A CN1553257A (en) | 2003-05-28 | 2003-05-28 | Light negative module liquid-crystal displaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1553257A true CN1553257A (en) | 2004-12-08 |
Family
ID=34323477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031370055A Pending CN1553257A (en) | 2003-05-28 | 2003-05-28 | Light negative module liquid-crystal displaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1553257A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371793C (en) * | 2004-12-09 | 2008-02-27 | 联准实业有限公司 | Large size back light module |
| CN100465735C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Back light unit and liquid crystal display employing the same |
| CN100465736C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Backlight unit and liquid crystal display device employing the same |
| CN104696828A (en) * | 2015-03-24 | 2015-06-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with backlight module |
-
2003
- 2003-05-28 CN CNA031370055A patent/CN1553257A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371793C (en) * | 2004-12-09 | 2008-02-27 | 联准实业有限公司 | Large size back light module |
| CN100465735C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Back light unit and liquid crystal display employing the same |
| CN100465736C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Backlight unit and liquid crystal display device employing the same |
| US7740364B2 (en) | 2005-04-04 | 2010-06-22 | Samsung Electronics Co., Ltd. | Backlight unit and liquid crystal display device employing the same |
| CN104696828A (en) * | 2015-03-24 | 2015-06-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with backlight module |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |