CN1282016C - Back light module ad liquid crsytal display - Google Patents
Back light module ad liquid crsytal display Download PDFInfo
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- CN1282016C CN1282016C CN 03110227 CN03110227A CN1282016C CN 1282016 C CN1282016 C CN 1282016C CN 03110227 CN03110227 CN 03110227 CN 03110227 A CN03110227 A CN 03110227A CN 1282016 C CN1282016 C CN 1282016C
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- backlight module
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Abstract
The present invention relates to a back light module. The back light module is mainly composed of a first frame, a rolling mechanism, a flexible reflecting sheet, a second frame, at least one light source and a plurality of optical films, wherein the rolling mechanism is arranged in the first frame, the flexible reflecting sheet is wound on the rolling mechanism, the second frame is arranged on the first frame, the light source is arranged in the second frame above the flexible reflecting sheet, and the optical films are arranged on the second frame above the light source.
Description
Technical field
The present invention relates to a kind of backlight module (Back Light Module) and LCD (LiquidCrystal Display, LCD).
Background technology
In order to cooperate modern life pattern, it is frivolous that the volume of video signal 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 light source.With the penetration or the LCD of semi-penetration, semi-reflective is example, it 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 area source, so that LCD reaches the effect of demonstration.
Fig. 1 illustrate is known a kind of diagrammatic cross-section of using the LCD of direct type backlight module.Please refer to Fig. 1, LCD 100 is made of a backlight module 110, a liquid crystal panel 120 and a framework 130, and backlight module 110 is made of with reflector plate 118 framework 112, a blooming piece 114, at least one light source 116.Wherein reflector plate 118 is to be disposed on framework 112 inner bottom surface, and light source 116 is in the Configuration Framework 112, and blooming piece 114 is to be disposed on the framework 112.
Liquid crystal panel 120 is to be equipped on the framework 112, and framework 130 is to set, be fixed on the framework 112 of backlight module 110, and grips liquid crystal panel 120 jointly by framework 130 and backlight module 110.
Yet, in above-mentioned LCD 100, after via long use, reflector plate 118 meetings yellow owing to be subjected to light source 116 irradiations, thereby cause the optical characteristics of reflector plate 118 to descend, influence the usefulness of throwing light on.
And, when changing reflector plate 118, need the order dismounting of LCD 100 according to framework 130, liquid crystal panel 120, blooming piece 114, light source 116 can be changed as need, therefore make that the replacing of reflector plate 118 is very consuming time.
Summary of the invention
Purpose of the present invention is exactly that it(?) can not need dismantle backlight module in that a kind of Backlight module and liquid crystal display is provided, and more renews reflector plate by the mode of scrolling, to prolong and to keep the reflector plate optical characteristics constant.
Another object of the present invention is providing a kind of Backlight module and liquid crystal display exactly, the replacing of carrying out reflector plate that can be faster.
The present invention proposes a kind of backlight module, and this backlight module is made of one first framework, a scrolling mechanism, a pliability reflector plate, second framework, at least one light source, a plurality of blooming piece.Wherein scrolling mechanism is to be disposed in first framework, the pliability reflector plate is to be wound on the scrolling mechanism, second framework is to be disposed on first framework, light source is to be disposed in second framework, and light source is positioned at pliability reflector plate top, and blooming piece is to be disposed on second framework, and blooming piece is to be positioned at the light source top.
Described backlight module, wherein this scrolling mechanism comprises a plurality of rollers side by side, and those rollers are to be disposed at respectively on the dual side-edge of this first framework.
Described backlight module, wherein this scrolling mechanism comprises that two extend rod member, and those extension rod members are to be disposed at respectively on the dual side-edge of this first framework.
Described backlight module is characterized in that, wherein this scrolling mechanism more comprises a motor, and this motor is to extend rod member with those to be connected, and extends this pliability reflector plate of rod member scrolling to drive those.
Described backlight module, wherein this light source comprises a cathode fluorescent tube.
Described backlight module, wherein those blooming pieces comprise diffusion sheet, brightening piece, prismatic lens.
The present invention proposes a kind of LCD, mainly is to be made of a backlight module, a liquid crystal panel and one the 3rd framework.Wherein this backlight module is made of one first framework, a scrolling mechanism, a pliability reflector plate, second framework, at least one light source, a plurality of blooming piece.Wherein scrolling mechanism is to be disposed in first framework, the pliability reflector plate is to be wound on the scrolling mechanism, second framework is to be disposed on first framework, light source is to be disposed in second framework, and light source is positioned at pliability reflector plate top, and blooming piece is to be disposed on second framework, and blooming piece is to be positioned at the light source top.Liquid crystal panel is to be arranged on second framework, and the 3rd framework is the edge that is disposed on second framework and covers liquid crystal panel.
Described LCD, wherein this scrolling mechanism comprises a plurality of rollers side by side, and those rollers are to be disposed at respectively on the dual side-edge of this first framework.
Described LCD, wherein this scrolling mechanism comprises that two extend rod member, and those extension rod members are to be disposed at respectively on the dual side-edge of this first framework.
Described LCD, wherein this scrolling mechanism more comprises a motor, this motor is to extend rod member with those to be connected, and extends this pliability reflector plate of rod member scrolling to drive those.
Described LCD, wherein this light source comprises a cathode fluorescent tube.
Described LCD, wherein those blooming pieces comprise diffusion sheet, brightening piece, prismatic lens.
From the above, because backlight module of the present invention or LCD, need not dismantle under the situation of backlight module, by just changing once new reflector plate at least by scrolling mechanism, the optical characteristics that therefore can prolong, keep reflector plate is constant, and can prolong necessary dismounting backlight module to change the time of reflector plate.
And, because when LCD of the present invention is changed reflector plate or light source at needs, as long as first framework and second framework apart just can be changed, and do not need therefore can carry out the reflector plate or the replacing of light source fast as must can change from the order dismounting of the 3rd framework, liquid crystal panel, blooming piece, light source in the past.
Comprehensive the above, backlight module of the present invention and LCD have following advantage at least:
1, because backlight module of the present invention or LCD, need not dismantle under the situation of backlight module, just can change once new reflector plate at least by scrolling mechanism, the optical characteristics that therefore can prolong/keep reflector plate is constant, and can prolong necessary dismounting backlight module to change the time of reflector plate.
2, because LCD of the present invention, when needs are changed reflector plate or light source, as long as first framework and second framework apart just can be changed, and do not need therefore can carry out the reflector plate or the replacing of light source fast as must can change from the order dismounting of the 3rd framework, liquid crystal panel, blooming piece, light source in the past.
Description of drawings
Fig. 1 is the diagrammatic cross-section of known a kind of LCD;
Fig. 2 is the side schematic view of a kind of backlight module of a preferred embodiment of the present invention;
Fig. 3 is first framework of backlight module of a preferred embodiment of the present invention and the three-dimensional exploded view of scrolling mechanism;
Fig. 4 is the diagrammatic cross-section of the scrolling mechanism of a preferred embodiment of the present invention;
Fig. 5 is the diagrammatic cross-section according to the LCD of a preferred embodiment of the present invention.
Embodiment
For above-mentioned and other purposes of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
At first, please refer to Fig. 2, the backlight module 200 of preferred embodiment of the present invention is made of one first framework 210, a scrolling mechanism 220, a pliability reflector plate 230, one second framework 240, at least one light source 250 and a plurality of blooming piece 260.
Please be simultaneously with reference to Fig. 2 and Fig. 3, scrolling mechanism 220 is to be disposed in first framework 210, wherein scrolling mechanism 220 for example is that a plurality of rollers 222 and two side by side extend rod member 224, and these a little rollers 222 are to be disposed at respectively on the dual side-edge of first framework 210 with extending rod member 224.
Please more simultaneously with reference to Fig. 2 and Fig. 3, pliability reflector plate 230 is to be wound on the scrolling mechanism 220, and it for example is to be wound in to extend rod member 224 constituting a reflecting surface, and the light that can be sent in order to reflection source 250.
Please more simultaneously with reference to Fig. 2 and Fig. 3, second framework 240 is to be disposed on first framework 210, and wherein first framework 210 and second framework 240 are combinations mutually in detachable mode.
Please refer to Fig. 2, light source 250 is to be disposed in second framework 240, and light source 250 is positioned at the top of pliability reflector plate 230, and wherein this light source 250 for example is a cathode fluorescent tube.
Please refer to Fig. 2, blooming piece 260 is to be disposed on second framework 240, and blooming piece is to be positioned at light source 250 tops, and wherein these a little blooming pieces 260 for example are diffusion sheet, brightening piece, prismatic lens.
And above-mentioned scrolling mechanism 220 can also comprise a motor (not shown), and this motor is to be connected with extension rod member 224, extends rod member 224 scrolling pliability reflector plates 230 in order to drive.
Fig. 4 illustrate is the diagrammatic cross-section of the scrolling mechanism of a preferred embodiment of the present invention.Please refer to Fig. 4, when this backlight module 200 uses a period of time, and must change reflector plate 230 wherein the time, drive extension rod member 224a, 224b by not shown motor and roll according to the direction of arrow X this moment, bendable reflector plate 230 then can move along direction of arrow Y, make original pliability reflector plate 230 be involved in and extend rod member 224a, be wound in the bendable reflector plate 230 of preparation that extends rod member 224b in advance and then be drawn out to form new bendable reflector plate 230.So, need not dismantle under the situation of backlight module 200, just can change the primary event sheet at least keeping the optical characteristics of reflector plate, and can prolong the dismounting backlight module to change the time of reflector plate.
Please refer to Fig. 5, LCD 300 of the present invention is made of above-mentioned backlight module 200, liquid crystal panel 310, the 3rd framework 320.Liquid crystal panel 310 wherein for example is general common by an electric crystal array film substrate (TFT Array), the active-matrix formula liquid crystal panel that one colored optical filtering substrates and a liquid crystal layer are constituted, this liquid crystal panel 310 is to be equipped on second framework 240 of blooming piece 260 tops, the 3rd framework 320 is edges of covering liquid crystal panel 310, and liquid crystal panel 310 is fixedly set on second framework 240, it for example is to grip liquid crystal panel 310 jointly by the 3rd framework 320 and second framework 240, for example is to be locked on second framework 240 by screw with the 3rd framework 320 again.
As shown in Figure 5, need not dismantle module except above-mentioned, can change outside the bendable reflector plate 230 by scroll mode, when needs are changed bendable reflector plate 230, as long as first framework 210 is just separated and can change with second framework 240, and do not need therefore can carry out the replacing of bendable reflector plate 230 fast as must can change from the order dismounting of the 3rd framework 320, liquid crystal panel 310, blooming piece 260, light source 250 in the past.
And light source 250 can also be by first framework 210 is separated to change with second framework 240, and is same, is to carry out the replacing of light source 250 fast.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to qualification the present invention, any people who has the knack of this technology, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when being as the criterion with claims.
Claims (12)
1, a kind of backlight module is characterized in that, comprising:
One first framework;
One scrolling mechanism is disposed in this first framework;
One pliability reflector plate is wound on this scrolling mechanism;
One second framework is disposed on this first framework;
At least one light source is disposed in this second framework, and this light source is positioned at this pliability reflector plate top; And
A plurality of blooming pieces are disposed on this second framework, and those blooming pieces are to be positioned at this light source top.
2, backlight module according to claim 1 is characterized in that, wherein this scrolling mechanism comprises a plurality of rollers side by side, and those rollers are to be disposed at respectively on the dual side-edge of this first framework.
3, backlight module according to claim 1 is characterized in that, wherein this scrolling mechanism comprises that two extend rod member, and those extension rod members are to be disposed at respectively on the dual side-edge of this first framework.
4, backlight module according to claim 3 is characterized in that, wherein this scrolling mechanism more comprises a motor, and this motor is to extend rod member with those to be connected, and extends this pliability reflector plate of rod member scrolling to drive those.
5, backlight module according to claim 1 is characterized in that, wherein this light source comprises a cathode fluorescent tube.
6, backlight module according to claim 1 is characterized in that, wherein those blooming pieces comprise diffusion sheet, brightening piece, prismatic lens.
7, a kind of LCD is characterized in that, comprising:
One backlight module, this backlight module comprises:
One first framework;
One scrolling mechanism is disposed in this first framework;
One pliability reflector plate is wound on this scrolling mechanism;
One second framework is disposed on this first framework;
At least one light source is disposed in this second framework, and this light source is positioned at this pliability reflector plate top;
A plurality of blooming pieces are disposed on this second framework, and those blooming pieces are to be positioned at this light source top;
One liquid crystal panel; And
One the 3rd framework is disposed on this second framework and covers the edge of this liquid crystal panel.
8, LCD according to claim 7 is characterized in that, wherein this scrolling mechanism comprises a plurality of rollers side by side, and those rollers are to be disposed at respectively on the dual side-edge of this first framework.
9, LCD according to claim 7 is characterized in that, wherein this scrolling mechanism comprises that two extend rod member, and those extension rod members are to be disposed at respectively on the dual side-edge of this first framework.
10, LCD according to claim 9 is characterized in that, wherein this scrolling mechanism more comprises a motor, and this motor is to extend rod member with those to be connected, and extends this pliability reflector plate of rod member scrolling to drive those.
11, LCD according to claim 7 is characterized in that, wherein this light source comprises a cathode fluorescent tube.
12, LCD according to claim 7 is characterized in that, wherein those blooming pieces comprise diffusion sheet, brightening piece, prismatic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110227 CN1282016C (en) | 2003-04-07 | 2003-04-07 | Back light module ad liquid crsytal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110227 CN1282016C (en) | 2003-04-07 | 2003-04-07 | Back light module ad liquid crsytal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536408A CN1536408A (en) | 2004-10-13 |
| CN1282016C true CN1282016C (en) | 2006-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03110227 Expired - Lifetime CN1282016C (en) | 2003-04-07 | 2003-04-07 | Back light module ad liquid crsytal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1282016C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896382B (en) * | 2015-06-18 | 2017-07-21 | 深圳市华星光电技术有限公司 | Backlight module and the liquid crystal display device comprising it |
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2003
- 2003-04-07 CN CN 03110227 patent/CN1282016C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1536408A (en) | 2004-10-13 |
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Granted publication date: 20061025 |