CN101276094A - LCD and backlight module - Google Patents
LCD and backlight module Download PDFInfo
- Publication number
- CN101276094A CN101276094A CNA2007100889171A CN200710088917A CN101276094A CN 101276094 A CN101276094 A CN 101276094A CN A2007100889171 A CNA2007100889171 A CN A2007100889171A CN 200710088917 A CN200710088917 A CN 200710088917A CN 101276094 A CN101276094 A CN 101276094A
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- Prior art keywords
- back frame
- metal back
- backlight module
- lcd
- display panel
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a backlight module, having a metal back frame which is capable of bearing the optical sheet. The backlight module includes a metal back frame, an optical source and an optical sheet. The light source is placed in the bearing part extended from the metal back frame for uniform the light source.
Description
Technical field
The invention relates to a kind of LCD, and particularly relevant for a kind of backlight liquid crystal display module.
Background technology
Because LCD (Liquid Crystal Display, LCD) have volume frivolous, save characteristics such as space, low power consumption and low radiation pollution, replaced traditional cathode-ray tube (CRT) (Cathode Ray Tube in recent years gradually, CRT) display, the standard that becomes computer of new generation is equipped with.
Please refer to Figure 1A, it illustrates the exploded view of conventional liquid crystal.In Figure 1A, LCD 100 has comprised procapsid 111, display panel 116, backlight module 140, dividing plate 122, circuit board 123 and back casing 124 at least.Circuit board 123 is in order to drive backlight module 140 and display panel 116.Backlight module 140 is positioned at the back side of display panel 116, in order to the light of display panel 116 abundances to be provided.Backlight module 140 comprises optical sheet 114, diffusing panel (diffuser plate) 120, plastic frame (plastichousing) 130, cold-cathode tube 112, reflector plate (reflecting sheet) 119 and metal back frame (bezel) 110.Cold-cathode tube 112 is parallel in the plastic frame 130, utilizes diffusing panel 120 to change the line source of fluorescent tube into planar light source.And be arranged on the reflector plate 119 of metal back frame (bezel) 110 inner faces, then parasitic light can be reflexed to the video picture exiting surface, to promote overall optical efficiency.
Please refer to Figure 1B, it illustrates the constitutional diagram of traditional plastic frame and metal back frame 110.Conventional plastic framework 130 is close to and is disposed at metal back frame 110 inside, and metal back frame 110 has containing groove, and reflector plate 119 is disposed at the bottom surface of metal back frame 110.Reflector plate 119 makes its even all diffusion in order to the light that reflection cold-cathode tube 112 is sent.Traditional plastic frame 130 also comprises locating piece 118, and is one-body molded with plastic frame, in order to carrying and fixedly diffusing panel 120 and optical sheet 114, it does not taken place up and down and the moving of left and right directions.And the material of the surrounding of this plastic frame is a reflecting material, in order to reflect cold-cathode tube 112 equably to display panel 116.
Because the element of conventional liquid crystal is numerous, its assembling flow path complexity must could be assembled through a plurality of steps and finished, and has the plastic frame of reflecting material, and its cost is relatively costly.Therefore how to simplify number of assembling steps, reduce cost, a real important goal for the industry research and development.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of backlight module exactly, utilizes the opening part of the metal back frame in the backlight module, extend a supporting part, but make its bearing optical sheet material, not only replaced the higher known plastic framework of cost, more can reduce number of assembling steps, raise the efficiency.
According to purpose of the present invention, a kind of backlight module is proposed, backlight in order to display panel to be provided.Backlight module comprises metal back frame, light source, and optical sheet.The bottom configuration light source of metal back frame, and its adjacent openings place has supporting part, in order to the bearing optical sheet material, with the homogenising light source.
According to purpose of the present invention, a kind of LCD is proposed, comprise display panel, and backlight module.Backlight module comprises: metal back frame, and light source, and optical sheet, the bottom configuration light source of metal back frame, and its adjacent openings place has supporting part, in order to the bearing optical sheet material, with the homogenising light source.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Figure 1A illustrates the exploded view of conventional liquid crystal.
Figure 1B illustrates the constitutional diagram of traditional plastic frame and metal back frame 110.
Fig. 2 illustrates the exploded view according to the LCD of preferred embodiment of the present invention.
Fig. 3 illustrates the schematic cross-section according to the backlight module of present embodiment.
Fig. 4 illustrates the stereographic map of backlight module after assembling according to present embodiment.
Fig. 5 illustrates the schematic cross-section according to the LCD of present embodiment.
Description of reference numerals
100,200: LCD
110,210: metal back frame
111: procapsid
120: diffusing panel
119,219: reflector plate
122: dividing plate
123: circuit board
124: back casing
112: cold-cathode tube
212: light source
114,214: optical sheet
116,216: display panel
130: plastic frame
140: backlight module
213: supporting part
215: extension
217: fender
118,218: locating piece
220: backlight module
224: circuit board
Embodiment
The invention provides a kind of backlight module, supporting part is set in metal back frame with the bearing optical sheet material.Thus, can omit plastic frame and reduce cost, also can reduce number of assembling steps, simplify assembling flow path.Below lift one group of preferred embodiment and elaborate, yet literal and diagram only are the usefulness of explanation that desire protection domain of the present invention is when being defined with claim, literal in the instructions and diagram can't be carried out limit to desire protection domain of the present invention.
Fig. 2 illustrates the exploded view according to the LCD of preferred embodiment of the present invention.Please refer to Fig. 2, LCD 200 comprises display panel 216 and backlight module 220 at least.Backlight module 220 is positioned at the back side of display panel 216, in order to provide sufficient light to display panel 216.Backlight module 220 comprises metal back frame (bezel) 210, light source 212, optical sheet 214 and circuit board 224.Circuit board 224 is in order to driving light source 212 and display panel 216, the light that is provided by light source 212, see through after optical sheet 214 spreads equably, just display panel 216 is gone in projection, cooperate display panel 216 to enrich beautiful picture to the user to form the color dot of various colors and penetrability, to present thus.
In backlight module 220, metal back frame 210 for example is iron cell body, has the opening of four sidewalls, bottom surface and relative bottom surface.Fig. 3 illustrates the schematic cross-section according to the backlight module of present embodiment.Please be simultaneously with reference to Fig. 2 and 3, metal back frame 210 is the outwards outstanding supporting part 213 that forms at the adjacent openings place, and supporting part 213 has the load plane that is parallel to metal back frame 210 bottom surfaces in fact.Light source 212 is disposed in the metal back frame 210, in order to light source to be provided.Optical sheet 214 is diffusing panel preferably, is disposed on the supporting part 213, uses so that light source 212 evenly spreads.
On the other hand, please refer to Fig. 2, with reflecting material, for example is reflector plate 219 on the inwall of metal back frame 210, and the light that can be used to be shed by light source 212 reflexes to display panel 216, increases the brightness of LCD 200.
Please be simultaneously with reference to Fig. 4 and Fig. 5.Fig. 4 illustrates the stereographic map of backlight module after assembling according to present embodiment.Fig. 5 illustrates the schematic cross-section according to the LCD of present embodiment.After backlight module 220 assemblings, optical sheet 214 is disposed on the supporting part 213.Please refer to Fig. 4, metal back frame 210 comprises extension 215, stretches out from opening part, is parallel to the load plane of metal back frame 210 bottom surfaces in fact.In addition, fender 217 and at least two locating pieces 218 also are set on the extension 215 of metal back frame 210.Fender 217 is positioned on the extension 215, and between display panel 216 and extension 215, as shown in Figure 5, in order to of the collision of buffering display panel 216 with metal back frame 210.Locating piece 218 for example is a plastic cement system L type projection, is being buckled on the metal back frame 210 after making moulding.Locating piece 218 lays respectively at the relative both sides of metal back frame 210 opening parts, and display panel 216 can nestle up the locating piece 218 of L type, makes its bottom surface direction at parallel metal back of the body frame 210 not produce mobile.Preferably four of locating pieces 218 lay respectively at four corners of extension 215, can nestle up four corners of display panel 216.
LCD that the above embodiment of the present invention is disclosed and backlight module, utilize the supporting part of the opening part formation bearing optical sheet material of metal back frame, replaced the plastic frame of cost costliness dexterously, not only make the manufacturing cost of backlight module reduce, more improved the efficient of assembling display panel and backlight module.On technology, the supporting part of present embodiment can with together impact briquetting of metal back frame, with low cost.Say that further present embodiment adopts the locating piece fixed display panel, applicable to the LCD of arbitrary dimension.The LCD of tradition different size needs the plastic frame of other customized different size, and cost of manufacture is high.The locating piece of present embodiment need not be customized especially according to the size of LCD, but unified specification make in a large number, reduce cost of manufacture significantly.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.Any in the technical field of the invention those of ordinary skill, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (20)
1. backlight module, in order to the backlight of display panel to be provided, this backlight module comprises:
Metal back frame has the supporting part that is close to an opening;
Light source is arranged in this metal back frame; And
Optical sheet is arranged on this supporting part, in order to this light source of homogenising.
2. backlight module as claimed in claim 1, wherein four sidewalls of this metal back frame are outwards given prominence to form this supporting part in being adjacent to this opening part, and this supporting part has at least one load plane, and this load plane is parallel to the bottom surface of this metal back frame in fact.
3. backlight module as claimed in claim 2, wherein this supporting part and this metal back frame are integrally formed.
4. backlight module as claimed in claim 1, wherein this metal back frame also comprises extension, this opening stretches out certainly, and the bottom surface of parallel in fact this metal back frame.
5. backlight module as claimed in claim 4, wherein this backlight module also comprises at least two locating pieces, is arranged at this extension, and lays respectively at relative two sides of this opening, be used for fixing this display panel, make this display panel not produce mobile in the direction that is parallel to this bottom surface.
6. backlight module as claimed in claim 5, the material of those locating pieces are plastic cement.
7. backlight module as claimed in claim 5, the shape of those locating pieces is the L type.
8. backlight module as claimed in claim 4 also comprises fender, is arranged on this extension, in order to cushion the collision of this display panel and this metal back frame.
9. backlight module as claimed in claim 1, this optical sheet are diffusing panel.
10. backlight module as claimed in claim 1, with reflecting material, this reflecting material evenly spreads this light in order to reflection ray on this metal back frame inwall.
11. a LCD comprises:
Display panel; And
Backlight module, in order to the backlight of this display panel to be provided, this backlight module comprises:
Metal back frame has the supporting part that is close to an opening;
Light source is arranged in this metal back frame; And
Optical sheet is arranged on this supporting part, in order to this light source of homogenising.
12. LCD as claimed in claim 11, wherein four sidewalls of this metal back frame are outwards outstanding to form this supporting part in being adjacent to this opening part, this supporting part has at least one load plane, and this load plane is parallel to the bottom surface of this metal back frame in fact.
13. LCD as claimed in claim 12, wherein this supporting part and this metal back frame are integrally formed.
14. LCD as claimed in claim 11, wherein this metal back frame also comprises extension, and this opening stretches out certainly, and the bottom surface of parallel in fact this metal back frame.
15. LCD as claimed in claim 14, wherein this backlight module also comprises at least two locating pieces, be arranged at this extension, and lay respectively at relative two sides of this opening, wherein, this display panel is close proximity to this two locating piece, makes this display panel not produce mobile in the direction of this bottom surface that is parallel to this metal back frame.
16. LCD as claimed in claim 15, the material of those locating pieces are plastic cement.
17. LCD as claimed in claim 15, the shape of those locating pieces is the L type.
18. LCD as claimed in claim 14 also comprises fender, is arranged on this extension, in order to cushion the collision of this display panel and this metal back frame.
19. LCD as claimed in claim 11, this optical sheet are diffusing panel.
20. LCD as claimed in claim 11, with reflecting material, this reflecting material evenly spreads this light in order to reflection ray on this metal back frame inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100889171A CN101276094A (en) | 2007-03-26 | 2007-03-26 | LCD and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100889171A CN101276094A (en) | 2007-03-26 | 2007-03-26 | LCD and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101276094A true CN101276094A (en) | 2008-10-01 |
Family
ID=39995669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100889171A Pending CN101276094A (en) | 2007-03-26 | 2007-03-26 | LCD and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101276094A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871599B (en) * | 2009-04-21 | 2011-12-14 | 苏州璨宇光学有限公司 | Backlight module |
| CN103295477A (en) * | 2012-03-05 | 2013-09-11 | 群康科技(深圳)有限公司 | Simple module display |
| CN104300246A (en) * | 2013-11-29 | 2015-01-21 | 中航光电科技股份有限公司 | Modular connector |
-
2007
- 2007-03-26 CN CNA2007100889171A patent/CN101276094A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871599B (en) * | 2009-04-21 | 2011-12-14 | 苏州璨宇光学有限公司 | Backlight module |
| CN103295477A (en) * | 2012-03-05 | 2013-09-11 | 群康科技(深圳)有限公司 | Simple module display |
| CN103295477B (en) * | 2012-03-05 | 2015-07-22 | 群康科技(深圳)有限公司 | Simple module display |
| CN104300246A (en) * | 2013-11-29 | 2015-01-21 | 中航光电科技股份有限公司 | Modular connector |
| CN104300246B (en) * | 2013-11-29 | 2017-06-27 | 中航光电科技股份有限公司 | Modular connector |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081001 |