CN101046577A - Back light module - Google Patents
Back light module Download PDFInfo
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- CN101046577A CN101046577A CN 200610071866 CN200610071866A CN101046577A CN 101046577 A CN101046577 A CN 101046577A CN 200610071866 CN200610071866 CN 200610071866 CN 200610071866 A CN200610071866 A CN 200610071866A CN 101046577 A CN101046577 A CN 101046577A
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- frame
- backlight module
- backboard
- blooming piece
- outstanding structure
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Abstract
The present invention discloses one kind of backlight module for LCD , The back light module includes one back plate, one optical plate on the back plate, at least one light source near the optical plate, one plastic frame and at least one optical diaphragm. The plastic frame around the back plate has one protuberant structure set between the light outgoing plane of the optical plate and the front frame of the plastic frame to form one interval for setting the optical diaphragm between the light outgoing plane and the front frame. The present invention discloses also one kind of LCD including one back light module and one LCD panel set on the plastic frame of the back light module.
Description
Technical field
The invention relates to a kind of light source module, particularly relevant for a kind of LCD MODULE that is used for the backlight liquid crystal display module and uses this backlight module.
Background technology
LCD (Liquid Crystal Display, LCD) LCD MODULE in is originally as non-self light emitting display element, and needing provide required light source by backlight module.Because the performance quality of backlight module can directly have influence on the quality of LCD MODULE, so backlight module is considerable parts in the LCD MODULE.
With reference to Figure 1A to Fig. 1 C, Figure 1A illustrates the assembling synoptic diagram of existing backlight module, and Figure 1B illustrates the vertical view of Figure 1A, and Fig. 1 C illustrates the A-A ' sectional view of Figure 1B.This existing backlight module includes a backboard 105, a light guide plate 110, a light source 112, at least one blooming piece 115 and a glue frame 120, frame 124 before the frame side 122 and before wherein the glue frame comprises.
After one backlight module manufacturing was finished, assembling with a liquid crystal cells (Liquid Crystal Cell) was a LCD MODULE.Yet when ambient temperature changed, existing backlight module added the structural limitations of gluing frame 120 owing to the material and the thermal expansivity difference of each element, may cause the display quality of LCD MODULE bad.More specifically, because the preceding frame 124 of glue frame 120 is pressing the edge of blooming piece 115, when ambient temperature changes, blooming piece 115 will deform because of the restriction of preceding frame 124 and the phenomenon of warpage, and the blooming piece 115 of this warpage will further push the Polarizer of liquid crystal cells and cause the distortion of Polarizer, thereby influence the display quality of LCD MODULE.
How improving the structural design of existing backlight module, to avoid LCD MODULE because of ambient temperature changes the reduction that produces display quality, is the problem that present urgent need overcomes.
Summary of the invention
Purpose of the present invention is providing a kind of backlight liquid crystal display module that is used for exactly, and this backlight module can avoid blooming piece to change the phenomenon that produces distortion and warpage because of ambient temperature.
Another purpose of the present invention is providing a kind of LCD MODULE exactly, and the blooming piece of this LCD MODULE can not be subjected to the extruding of backlight module because ambient temperature changes.
According to above-described purpose, a kind of backlight module is proposed, this backlight module includes a backboard, an optical sheet, at least one light source, a glue frame and at least one blooming piece.This optical sheet is arranged on the backboard and the setting of light source adjacent optical plate.This glue frame is arranged at the backboard periphery, frame side before frame, the outstanding structure and before this glue frame has one, should give prominence to structure between an exiting surface and preceding frame of described optical sheet, in order to form a gap between described exiting surface and preceding frame, this gap is in order to be provided with blooming piece.
According to the described backlight module of a preferred embodiment of the present invention, wherein said outstanding structure is a rectangle frame, and this outstanding structure frame direction forward is outstanding and around the periphery setting of frame before described.
According to the described backlight module of a preferred embodiment of the present invention, wherein said outstanding structure comprises a plurality of projecting blocks, and these projecting blocks frame direction forward are outstanding and around the periphery setting of frame before described.
According to the described backlight module of a preferred embodiment of the present invention, the edge of wherein said optical sheet has a plurality of holes, and corresponding these projecting blocks of these holes are provided with, and makes these projecting blocks pass these holes and contacts with described exiting surface.
According to the described backlight module of a preferred embodiment of the present invention, the material of wherein said backboard is a metal.
According to the described backlight module of a preferred embodiment of the present invention, the material of wherein said glue frame is plastics.
According to the described backlight module of a preferred embodiment of the present invention, wherein said optical sheet is light guide plate or diffuser plate.
According to the described backlight module of a preferred embodiment of the present invention, wherein said light source is cathode fluorescent tube, light emitting diode or electroluminescence fluorescent tube.
According to the described backlight module of a preferred embodiment of the present invention, wherein said blooming piece is diffusion sheet, brightness enhancement film or prismatic lens.
According to above-described purpose, a kind of LCD MODULE is also proposed, include a backlight module and a display panels, wherein this backlight module includes a backboard, an optical sheet, at least one light source, a glue frame and at least one blooming piece.Described optical sheet is arranged on the described backboard and contiguous this optical sheet place is provided with described light source.Described glue frame is arranged at described backboard periphery, frame side before frame, the outstanding structure and before this glue frame has one, should give prominence to structure between an exiting surface and preceding frame of described optical sheet, in order to form a gap in described exiting surface and should before between the frame, this gap is in order to be provided with described blooming piece.Described display panels is arranged on the preceding frame.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said outstanding structure is a rectangle frame, and this outstanding structure frame direction forward is outstanding and around the periphery setting of frame before described.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said outstanding structure comprises a plurality of projecting blocks, and these projecting blocks frame direction forward are outstanding.
According to the described LCD MODULE of a preferred embodiment of the present invention, the edge of wherein said optical sheet has a plurality of holes, and corresponding these projecting blocks of these holes are provided with, and makes these projecting blocks pass these holes and contacts with described exiting surface.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said display panels comprises Polarizer on, a liquid crystal cells reaches Polarizer.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said optical sheet is light guide plate or diffuser plate.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said light source is cathode fluorescent tube, light emitting diode or electroluminescence fluorescent tube.
According to the described LCD MODULE of a preferred embodiment of the present invention, wherein said blooming piece is diffusion sheet, brightness enhancement film or prismatic lens.
According to the described LCD MODULE of a preferred embodiment of the present invention, also comprise a housing, be arranged at described glue frame periphery, in order to fixing described display panels and described backlight module.
According to the described LCD MODULE of a preferred embodiment of the present invention, the material of wherein said housing is a metal.
Its glue frame of backlight module of the present invention has an outstanding structure, can avoid blooming piece to be subjected to pressing solidly of preceding frame, therefore can avoid blooming piece to change the phenomenon that produces distortion and warpage because of ambient temperature.
LCD MODULE of the present invention, because the glue frame of its backlight module has an outstanding structure, so blooming piece can not be subjected to the extruding of backlight module because ambient temperature changes.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of accompanying drawing:
Figure 1A illustrates the assembling synoptic diagram of existing backlight module.
Figure 1B illustrates the vertical view of Figure 1A.
Fig. 1 C illustrates the A-A ' sectional view of Figure 1B.
Fig. 2 A illustrates the vertical view according to the backlight module of a preferred embodiment of the present invention.
Fig. 2 B illustrates the B-B ' sectional view of Fig. 2 A.
Fig. 3 A illustrates the vertical view of the backlight module of another preferred embodiment according to the present invention.
Fig. 3 B illustrates the C-C ' sectional view of Fig. 3 A.
Fig. 3 C illustrates the vertical view of blooming piece among Fig. 3 B.
Fig. 4 A illustrates the vertical view according to the LCD MODULE of a preferred embodiment of the present invention.
Fig. 4 B illustrates the D-D ' sectional view of Fig. 4 A.
Description of reference numerals:
105: backboard 224: preceding frame
110: light guide plate 226: outstanding structure
112: light source 300: backlight module
115: blooming piece 318: gap
120: glue frame 320: the glue frame
122: preceding frame side 322: preceding frame side
124: preceding frame 324: preceding frame
200: backlight module 326: outstanding structure
205: backboard 326a: projecting block
210: optical sheet 330: blooming piece
212: exiting surface 332: hole
215: light source 410: display panels
218: gap 412: go up Polarizer
220: glue frame 414: liquid crystal cells
222: preceding frame side 416: following Polarizer
230: blooming piece 420: housing
Embodiment
Fig. 2 A illustrates the vertical view according to the backlight module of a preferred embodiment of the present invention, and Fig. 2 B illustrates the B-B ' sectional view of Fig. 2 A.Please refer to Fig. 2 A and Fig. 2 B, this backlight module 200 for example includes a backboard 205, an optical sheet 210, at least one light source 215, a glue frame 220 and at least one blooming piece 230.More specifically, optical sheet 210 for example is a light guide plate or a diffuser plate, is arranged on the backboard 205.The material of backboard 205 for example is a metal, is preferably aluminium.The material of optical sheet 210 for example is that (Polymethyl methacrylate PMMA), is directed to an exiting surface 212 in order to the light that light source 215 is sent, to guarantee the homogeneity of backlight module 200 brightness to polymethylmethacrylate equably.Light source 215 for example is cathode fluorescent tube (Cold Cathode FluorescentLamp, CCFL), light emitting diode (Light Emitting Diode, LED) or the electroluminescence fluorescent tube (Electroluminescent Lamp, EL), this light source 215 adjacent optical plates 210 are provided with.This light source 215 can be arranged at a side or the two subtend sides of optical sheet 210.In addition, this light source 215 also can be arranged between backboard 205 and the optical sheet 210.
Please continue with reference to Fig. 2 A and Fig. 2 B, blooming piece 230 for example is following diffusion sheet, brightness enhancement film, prismatic lens or goes up diffusion sheet, in order to further brightness and the homogeneity of improving backlight module 200.The material of glue frame 220 for example is plastics, is arranged at backboard 205 peripheries, frame side 222 before frame 224, the one outstanding structure 226 and before this glue frame 220 for example has, and wherein preceding frame 224 is provided with around exiting surface 212 peripheries.It should be noted that, outstanding structure 226 is rectangle frames, outstanding structure 226 frame 224 directions forward is outstanding and around the periphery setting of preceding frame 224, and outstanding structure 226 is between the exiting surface 212 and preceding frame 224 of optical sheet 210, make to form a gap 218 between exiting surface 212 and the preceding frame 224, this gap 218 is in order to be provided with blooming piece 230.So, because glue frame 220 has gap 218, make the pressing solidly of frame 224 before blooming piece 230 unlikely being subjected to, and gap 218 provides the space of blooming piece 230 distortion.Therefore when ambient temperature changed, blooming piece 230 can not cause the phenomenon of warpage because of pressing solidly and limiting of preceding frame 224.
Briefly, backlight module 200 its assembling process of a preferred embodiment of the present invention for example are: at first, provide a backboard 205.Then, an optical sheet 210 is set on backboard 205, this optical sheet 210 for example is a light guide plate, and at least one side of this optical sheet 210 is provided with a light source 215, and this light source 215 for example is a cathode fluorescent tube.Afterwards, at least one blooming piece 230 is arranged on the optical sheet 210, for example, sets gradually on diffusion sheet, the brightness enhancement film and a diffusion sheet on optical sheet 210.Then, with glue frame 220 stationary backplate 205, optical sheet 210, light source 215 and blooming piece 230, can finish the assembling of backlight module 200.Because glue frame 220 has outstanding structure 226, make and form a gap 218 between optical sheet 210 and the preceding frame 224, therefore blooming piece 230 can not be subjected to pressing solidly of preceding frame 224, and therefore when ambient temperature changed, blooming piece 230 can not produce the phenomenon of warpage.
Fig. 3 A illustrates the vertical view of the backlight module of another preferred embodiment according to the present invention, and Fig. 3 B illustrates the C-C ' sectional view of Fig. 3 A.Please refer to Fig. 3 A and Fig. 3 B, this backlight module 300 for example includes a backboard 205, an optical sheet 210, at least one light source 215, a glue frame 320 and at least one blooming piece 330.Frame side 322 before frame 324, the one outstanding structure 326 and before glue frame 320 for example has one.The embodiment that this preferred embodiment and Fig. 2 A illustrate compares, the two main difference is the outstanding structure 326 of glue frame 320, the outstanding structure 326 of this preferred embodiment includes a plurality of projecting block 326a, these projecting blocks 326a frame 324 directions forward is outstanding and around the periphery setting of preceding frame 324, formation one gap 318 between an exiting surface 212 that makes optical sheet 210 and the preceding frame 324.
Fig. 3 C illustrates the vertical view of blooming piece among Fig. 3 B, please be simultaneously with reference to Fig. 3 B and Fig. 3 C, and this blooming piece 330 is arranged in the gap 318.Edge that it should be noted that blooming piece 330 has a plurality of holes 332, and the projecting block 326a of these a little hole 332 corresponding glue frames 320 is provided with, and makes projecting block 326a pass hole 332 and contacts with exiting surface 212.So, can avoid blooming piece 330 to be subjected to pressing solidly of preceding frame 324.Therefore when ambient temperature changed, blooming piece 330 can not cause the phenomenon of warpage because of pressing solidly and limiting of preceding frame 324.
Please refer to Fig. 4 A and Fig. 4 B, Fig. 4 A illustrates the vertical view according to the LCD MODULE of a preferred embodiment of the present invention, and Fig. 4 B illustrates the D-D ' sectional view of Fig. 4 A.This LCD MODULE for example includes a display panels 410, a backlight module 300 and a housing 420, and the material of this housing 420 for example is a metal.Display panels 410 for example includes on one Polarizer 412, a liquid crystal cells 414 and Polarizer 416 once.Backlight module 300 for example includes a backboard 205, an optical sheet 210, at least one light source 215, a glue frame 320 and at least one blooming piece 330.Frame side 322 before frame 324, the one outstanding structure 326 and before glue frame 320 for example has one.The assembling processing procedure of LCD MODULE is to utilize housing 420, and display panels 410 and backlight module 300 are assembled, and on the frame 324, then finishes the manufacturing of whole LCD after the assembling before for example display panels 410 being arranged at.
Formation one gap 318 between the exiting surface 212 that outstanding structure 326 makes optical sheet 210 and the preceding frame 324, blooming piece 330 is arranged in this gap 318.So, can avoid blooming piece 330 to be subjected to pressing solidly of preceding frame 324.Therefore when ambient temperature changed, blooming piece 330 can not produce the phenomenon of warpage, and then avoided blooming piece 330 extruding to descend Polarizer 416 and cause the display quality of LCD MODULE to reduce.
By the invention described above preferred embodiment as can be known, its glue frame of backlight module of the present invention has an outstanding structure, frame presses solidly before can avoiding blooming piece to be subjected to, therefore can improve blooming piece produces warpage because of ambient temperature changes phenomenon, and then improve the quality of LCD MODULE.
Though the present invention with preferred embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; all can do various changes and modification, so protection scope of the present invention should be with being as the criterion that claims were defined.
Claims (10)
1. a backlight module is characterized in that, comprises:
One backboard;
One optical sheet is arranged on the backboard;
At least one light source, the adjacent optical plate is provided with;
One glue frame is arranged at the backboard periphery, and this glue frame has frame side before frame before, the outstanding structure and, this outstanding structure an exiting surface of described optical sheet and described before between the frame, in order to form a gap in described exiting surface and described before between the frame; And
At least one blooming piece is arranged at described gap.
2. backlight module as claimed in claim 1 is characterized in that, described outstanding structure is a rectangle frame, to described backboard direction protrude in described before frame and around the periphery setting of frame before described.
3. backlight module as claimed in claim 1 is characterized in that, described outstanding structure comprises a plurality of projecting blocks, these projecting blocks to described backboard direction protrude in described before frame and around the periphery setting of frame before described.
4. backlight module as claimed in claim 3 is characterized in that the periphery of described blooming piece has a plurality of holes, and corresponding these projecting blocks of these holes are provided with, and makes these projecting blocks pass these holes and contacts with described exiting surface.
5. backlight module as claimed in claim 1 is characterized in that, described optical sheet is light guide plate or diffuser plate.
6. backlight module as claimed in claim 1 is characterized in that, described blooming piece is diffusion sheet, brightness enhancement film or prismatic lens.
7. a LCD MODULE is characterized in that, comprises:
One backlight module comprises:
One backboard;
One optical sheet is arranged on the backboard;
At least one light source, the adjacent optical plate is provided with;
One glue frame is arranged at the backboard periphery, and this glue frame has frame side before frame before, the outstanding structure and, this outstanding structure an exiting surface of described optical sheet and described before between the frame, in order to form a gap in described exiting surface and described before between the frame; And
At least one blooming piece is arranged at described gap; And
One display panels is arranged on the described preceding frame.
8. LCD MODULE as claimed in claim 7 is characterized in that, described outstanding structure is a rectangle frame, to described backboard direction protrude in described before frame and around the periphery setting of frame before described.
9. LCD MODULE as claimed in claim 7 is characterized in that, described outstanding structure comprises a plurality of projecting blocks, these backboards to described exiting surface direction protrude in described before frame and around the periphery setting of frame before described.
10. LCD MODULE as claimed in claim 9 is characterized in that the edge of described blooming piece has a plurality of holes, and corresponding these projecting blocks of these holes are provided with, and makes these projecting blocks pass these holes and contacts with described exiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610071866 CN101046577A (en) | 2006-03-29 | 2006-03-29 | Back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610071866 CN101046577A (en) | 2006-03-29 | 2006-03-29 | Back light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101046577A true CN101046577A (en) | 2007-10-03 |
Family
ID=38771313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610071866 Pending CN101046577A (en) | 2006-03-29 | 2006-03-29 | Back light module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101046577A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893211A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Backlight module and rubber frame unit structure thereof |
| CN101943808A (en) * | 2010-07-29 | 2011-01-12 | 深圳市华星光电技术有限公司 | Rubber frame for liquid crystal display, manufacturing thereof method and liquid crystal display |
| CN105068163A (en) * | 2015-09-10 | 2015-11-18 | 中航华东光电有限公司 | High/low-temperature membrane wrinkling prevention membrane group structure and production method thereof |
| CN106444128A (en) * | 2016-12-01 | 2017-02-22 | 奥英光电（苏州）有限公司 | Liquid crystal display equipment |
| CN107942558A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and backlight module thereof |
| CN108563064A (en) * | 2018-01-05 | 2018-09-21 | 京东方科技集团股份有限公司 | Backlight module and its assemble method, display device |
| CN110389468A (en) * | 2018-04-17 | 2019-10-29 | 宸盛光电有限公司 | Backlight module and its display device |
-
2006
- 2006-03-29 CN CN 200610071866 patent/CN101046577A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893211A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Backlight module and rubber frame unit structure thereof |
| CN101893211B (en) * | 2010-07-14 | 2012-01-11 | 深圳市华星光电技术有限公司 | Backlight module and rubber frame unit structure thereof |
| CN101943808A (en) * | 2010-07-29 | 2011-01-12 | 深圳市华星光电技术有限公司 | Rubber frame for liquid crystal display, manufacturing thereof method and liquid crystal display |
| CN105068163A (en) * | 2015-09-10 | 2015-11-18 | 中航华东光电有限公司 | High/low-temperature membrane wrinkling prevention membrane group structure and production method thereof |
| CN106444128A (en) * | 2016-12-01 | 2017-02-22 | 奥英光电（苏州）有限公司 | Liquid crystal display equipment |
| CN107942558A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and backlight module thereof |
| CN108563064A (en) * | 2018-01-05 | 2018-09-21 | 京东方科技集团股份有限公司 | Backlight module and its assemble method, display device |
| CN108563064B (en) * | 2018-01-05 | 2021-04-13 | 京东方科技集团股份有限公司 | Backlight module, assembling method thereof and display device |
| CN110389468A (en) * | 2018-04-17 | 2019-10-29 | 宸盛光电有限公司 | Backlight module and its display device |
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