CN2862101Y - LCD display module unit - Google Patents
LCD display module unit Download PDFInfo
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- CN2862101Y CN2862101Y CNU2005201209453U CN200520120945U CN2862101Y CN 2862101 Y CN2862101 Y CN 2862101Y CN U2005201209453 U CNU2005201209453 U CN U2005201209453U CN 200520120945 U CN200520120945 U CN 200520120945U CN 2862101 Y CN2862101 Y CN 2862101Y
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- prism structure
- prism
- liquid crystal
- display module
- crystal display
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Abstract
The utility model relates to a liquid crystal display (LCD) module, which includes a liquid crystal panel and a backlight module that are disposed in stack form. The backlight module includes a brightness enhancement film (BEF) including a main body, a first prism structure, a second prism structure, a first protection layer and a second protection layer. The main body includes oppositely disposed a first surface and a second surface. The first prism structure includes a plurality of prism columns that are coated with the first protection layer and successively disposed on the first surface of the main body. The second prism structure includes a plurality of prism columns that are coated with the second protection layer and successively disposed on the second surface of the main body. Each prism column in the second prism structure is perpendicular with each prism column in the first prism structure. The BEF film is not easy to be damaged during assembling, thus the reliability of the LCD module can be guaranteed.
Description
[technical field]
The utility model relates to a kind of liquid crystal display module.
[background technology]
Demand along with liquid crystal display market high brightness, in present liquid crystal display module, adopt brightness enhancement film (Brightness Enhancement Film usually, BEF), it is arranged in the module backlight of liquid crystal display module, in order to increase the luminescence efficiency of module backlight.
Fig. 1 is the structural representation of prior art liquid crystal display module.This liquid crystal display module 20 comprises one first polaroid 201, a liquid crystal panel 200, one second polaroid 206 and a module 220 backlight that is cascading from top to bottom.This module 220 backlight provides planar light for this liquid crystal panel 200.This liquid crystal panel 200 comprises one first substrate 202, a liquid crystal layer 203 and one second substrate 204 that is cascading from top to bottom.This module 220 backlight comprises one first brightness enhancement film 221, one second brightness enhancement film 222, a diffusion sheet 224, a light guide plate 226 and a reflector plate 228 that is cascading from top to bottom.Also be provided with a light source 205 in these light guide plate 226 1 sides.
Fig. 2 is the structural representation of second polaroid 206.This second polaroid 206 comprises an adhesion layer 210, a diaphragm 212, a polarization matrix 214 and a support chip 216 that is cascading from top to bottom.This support chip 216 is used for supporting this polarization matrix 214.This diaphragm 212 is used for protecting this polarization matrix 214.The material of this diaphragm 212 and this support chip 216 select for use usually Triafol T (Triacetyl Cellulose, TAC), the material of this polarization matrix 214 select for use usually polyvinyl alcohol (PVA) (Polyvinyl Alcohol, PVA).The structure of this first polaroid 201 is identical with the structure of this second polaroid 206.
Fig. 3 is the schematic perspective view of this first brightness enhancement film 221.This first brightness enhancement film 221 comprises a main body 230 and a plurality of prism structure 231.This prism structure 231 is made up of a plurality of prism columns, is arranged on continuously on two apparent surfaces of this main body 230, and its cross section is equilateral laciniation.The material of this prism structure 231 is selected for use usually acrylic resin modified (Modified AcrylicAcid Resin), and the material of this main body 230 is selected the polyester material usually for use.The structure of this second brightness enhancement film 222 is identical with the structure of this first brightness enhancement film 221, and each prism columns of each prism columns of this second brightness enhancement film 222 and this first brightness enhancement film 221 is orthogonal.
Fig. 4 is the light harvesting principle schematic of the prism structure 231 of this first brightness enhancement film 221.After incident ray a injected the bottom surface 232 of this prism structure 231, because the refractive index of air is less than this prism refractive index of 231 partly, thereby according to refraction law, its refraction angle will be less than incident angle.When refracted ray during through inclined-plane 233 outgoing, because the refractive index of this prism structure 231 is greater than air refraction, thereby again according to refraction law, the emergence angle of emergent ray b will be greater than the refraction angle.Through this light path, the going direction changing that makes oblique fire originally go into the light a of this bottom surface 232 becomes and is basically perpendicular to this bottom surface 233, thereby makes more light inject this liquid crystal panel 20, reaches the effect that improves light utilization efficiency, strengthens the light harvesting effect.The orthogonal brightness enhancement film 221,222 of two-layer prism structure is set, can realizes omnibearing light harvesting effect.
But, because the prism structure of this first brightness enhancement film 221 and this second brightness enhancement film 222 is exposed outside, in assembling process, be vulnerable to damage, cause the light harvesting poor effect and produce defective products, thereby cause using the reliability of the liquid crystal display module of this brightness enhancement film to reduce.
[utility model content]
For solving prior art module backlight, be necessary the liquid crystal display module that provides a kind of reliability high because of the impaired problem that causes that reliability reduces of brightness enhancement film.
A kind of liquid crystal display module, it comprises a liquid crystal panel and a module backlight of stacked setting in regular turn, this module backlight comprises a light source, a light guide plate and a brightness enhancement film, this light guide plate and the stacked setting of this brightness enhancement film, this light source is positioned at this light guide plate one side.This brightness enhancement film comprises a main body, one first prism structure, one second prism structure, one first protective seam and one second protective seam.This main body comprises a relative first surface and a second surface.This first prism structure comprises a plurality of prism columns, is arranged on the first surface of this main body continuously.This second prism structure also comprises a plurality of prism columns, is arranged on the second surface of this main body continuously, and each prism columns of its each prism columns and this first prism structure is perpendicular.This first protective seam covers this first prism structure.This second protective seam covers this second prism structure.
Above-mentioned brightness enhancement film realizes omnibearing light harvesting function by orthogonal two prism structures are set; and has a protective seam respectively on these two prism structures; can avoid this prism structure in assembling process, to sustain damage; effectively protect the prism structure of this brightness enhancement film, thereby guaranteed to have the reliability of the liquid crystal display module of this structure of reflection reducting coating.
[description of drawings]
Fig. 1 is the structural representation of prior art liquid crystal display module
Fig. 2 is the structural representation of liquid crystal display module second polaroid shown in Figure 1.
Fig. 3 is the structural representation of liquid crystal display module brightness enhancement film shown in Figure 1.
Fig. 4 is the light harvesting principle schematic of brightness enhancement film shown in Figure 3.
Fig. 5 is the structural representation of the utility model liquid crystal display module first embodiment.
Fig. 6 is the structural representation of liquid crystal display module brightness enhancement film shown in Figure 5.
Fig. 7 is the structural representation of the utility model liquid crystal display module second embodiment.
Fig. 8 is the structural representation of the utility model liquid crystal display module the 3rd embodiment.
Fig. 9 is the structural representation that the utlity model has the brightness enhancement film of wavy prism structure.
[embodiment]
Fig. 5 is the structural representation of the utility model liquid crystal display module first embodiment.This liquid crystal display module 30 comprises one first polaroid 301, a liquid crystal panel 300, one second polaroid 306 and a module 320 backlight that is cascading from top to bottom.This module 320 backlight provides planar light for this liquid crystal panel 300.This liquid crystal panel 300 comprises one first substrate 302, a liquid crystal layer 303 and one second substrate 304 that is cascading from top to bottom.This module 320 backlight comprises a brightness enhancement film 322, a diffusion sheet 324, a light guide plate 326 and a reflector plate 328 that is cascading from top to bottom.Also be provided with a light source 305 in these light guide plate 326 1 sides.
Fig. 6 is the structural representation of this brightness enhancement film 322.This brightness enhancement film 322 comprises a main body 332, one first prism structure 330, one second prism structure 334, one first protective seam 336 and one second protective seam 338.This first prism structure 330 is made up of a plurality of prism columns with this second prism structure 334, be arranged on continuously on two apparent surfaces of this main body 332, its cross section is equilateral laciniation, and each prism columns of this first prism structure 330 and each prism columns of this second prism structure 334 are perpendicular.This first protective seam 336 covers this first prism structure 330, and this second protective seam 338 covers this second prism structure 334.This first prism structure 330 all is n with the refractive index of this second prism structure 334
0, the refractive index of this first protective seam 336 is n
1, and n
0＞n
1The refractive index of this second protective seam 338 is n
2, and n
0＜n
2The material of these two prism structures 330,334 is generally acrylic resin modified, and the material of this main body 332 is generally the polyester material, and the refractive index of this main body 332 is near the refractive index of these two prism structures 330,334.
When light is injected this second prism structure 334 through this second protective seam 338, because the refractive index n of this second protective seam 338
2Refractive index n greater than this second prism structure 334
0, thereby according to its refraction angle of refraction law less than incident angle; Because the refractive index of these two prism structures 334,330 and the refractive index of main body 332 are approaching; thereby this refracted ray will be similar to along rectilinear direction and pass the inclined-plane that this second prism structure 334 and this main body 332 arrives these first prism structures 330, because the refractive index n of this first protective seam 336
1Less than this first prism structure n
0, thereby according to its emergence angle of refraction law greater than incident angle.Through this light path, the light that also the script oblique fire can be gone into this second protective seam 338 changes the light that becomes basic vertical this first protective seam 336, thereby reaches the light harvesting effect that is provided with two-layer brightness enhancement film equivalence with prior art.And each prism columns of this first prism structure 330 and each prism columns of this second prism structure 334 are perpendicular, thereby have realized omnibearing light harvesting effect.
Owing on these two prism structures 330,334, be provided with two protective seams 336,338 respectively; these two prism structures 330,334 are protected; avoid brightness enhancement film 322 damaged in assembling process, thereby guaranteed to use the reliability of the module backlight and the liquid crystal display module of this brightness enhancement film.
Fig. 7 is the structural representation of the utility model liquid crystal display module second embodiment.This liquid crystal display module 40 comprises a polaroid 401, a liquid crystal panel 400, a polarisation brightness enhancement layer 406, a diffusion sheet 424, a light guide plate 426 and a reflector plate 428 that is cascading from top to bottom.These light guide plate 426 1 sides also are provided with a light source 405.This liquid crystal panel 400 comprises one first substrate 402, a liquid crystal layer 403 and one second substrate 404 that is cascading from top to bottom.
This polarisation brightness enhancement layer 406 comprises an adhesion layer 410, a diaphragm 412, a polarization matrix 414, one first protective seam 436, one first prism structure 430, a main body 432, one second prism structure 434 and one second protective seam 438 that is cascading from top to bottom.This diaphragm 412 is used for protecting this polarization matrix 414.This first prism structure 430 is made up of a plurality of prism columns with this second prism structure 434, be arranged on continuously on two apparent surfaces of this main body 432, the laciniation of the length of sides such as its cross section is, and each prism columns of each prism columns of this first prism structure 430 and this second prism structure 434 is perpendicular.This first protective seam 436 covers this first prism structure 430, and it had both played the effect of supporting this polarization matrix 414, was used for protecting this first prism structure 430 again.This second protective seam 438 covers this second prism structure 434.
In this structure; this first protective seam 436 had both had the function that supports this polarization matrix 414; the function that has this first prism structure 430 of protection again; thereby played the support chip function of this second polaroid 306 of first embodiment; thereby reduce the support chip structure, reduced the thickness of this liquid crystal display module 40.
Fig. 8 is the structural representation of the utility model liquid crystal display module the 3rd embodiment.The difference of this liquid crystal display module 50 and the second embodiment liquid crystal display module 40 is: second protective seam, 538 lower surfaces in its polarisation brightness enhancement layer 506 further apply one deck diffusion barrier 524; so that this polarisation brightness enhancement layer 506 has the function of diffusion sheet, further reduce the thickness of liquid crystal display module 50.
See also Fig. 9, in the respective embodiments described above, this prism structure also can be that the cross section is wavy column structure and is arranged in continuously on this body surfaces.
First prism structure of each embodiment of the utility model, main body and second prism structure also can be manufactured from the same material, and the three is an one-piece construction.
Claims (6)
1. liquid crystal display module; it comprises a liquid crystal panel and a module backlight of stacked setting in regular turn; this module backlight comprises a light source; one light guide plate and a brightness enhancement film; this light guide plate and the stacked setting of this brightness enhancement film; this light source is positioned at this light guide plate one side; this brightness enhancement film comprises a main body; one first prism structure and one second prism structure; this main body comprises a relative first surface and a second surface; this first prism structure comprises a plurality of prism columns; it is arranged on the first surface of this main body continuously; this second prism structure also comprises a plurality of prism columns; and each prism columns of its each prism columns and this first prism structure is perpendicular; it is characterized in that: each prism columns of this second prism structure is arranged on the second surface of this main body continuously; and this first prism structure is coated with one first protective seam, and this second prism structure is coated with one second protective seam.
2. liquid crystal display module as claimed in claim 1 is characterized in that: the cross sectional shape of this first prism structure and this second prism structure can be a zigzag or wavy.
3. liquid crystal display module as claimed in claim 1; it is characterized in that: the refractive index of this first protective seam is less than the refractive index of this first prism structure; the refractive index of this second protective seam is greater than the refractive index of this second prism structure, and this first prism structure is identical with the refractive index of this second prism structure.
4. liquid crystal display module as claimed in claim 1 is characterized in that: this liquid crystal panel also comprises one first polaroid and one second polaroid, and it lays respectively at two opposite planar both sides of this liquid crystal panel.
5. liquid crystal display module as claimed in claim 4 is characterized in that: this first polaroid is identical with this second polaroid structure.
6. liquid crystal display module as claimed in claim 4 is characterized in that: this second polaroid comprises an adhesion layer, a diaphragm, a polarization matrix and a support chip, this support chip and this this polarization matrix of diaphragm clamping, and this adhesion layer pastes this liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201209453U CN2862101Y (en) | 2005-12-22 | 2005-12-22 | LCD display module unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201209453U CN2862101Y (en) | 2005-12-22 | 2005-12-22 | LCD display module unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862101Y true CN2862101Y (en) | 2007-01-24 |
Family
ID=37659733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201209453U Expired - Fee Related CN2862101Y (en) | 2005-12-22 | 2005-12-22 | LCD display module unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862101Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393283B (en) * | 2007-09-21 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Prismatic lens and LCD employing the prismatic lens |
| CN102612661A (en) * | 2009-12-28 | 2012-07-25 | 第一毛织株式会社 | Pattern light guide plate, method for manufacturing same, and backlight unit of a liquid crystal display using same |
| CN103513321A (en) * | 2012-06-28 | 2014-01-15 | 上海天马微电子有限公司 | Light guide plate, backlight module using the same and method for manufacturing the same |
| CN104456412A (en) * | 2014-12-23 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Optical film, backlight and display device |
| CN109901249A (en) * | 2017-12-08 | 2019-06-18 | 胡崇铭 | The display equipment and light emitting device of optical diaphragm module and Application Optics membrane module |
| WO2019205478A1 (en) * | 2018-04-25 | 2019-10-31 | 武汉华星光电技术有限公司 | Flexible cover and flexible display device |
-
2005
- 2005-12-22 CN CNU2005201209453U patent/CN2862101Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393283B (en) * | 2007-09-21 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Prismatic lens and LCD employing the prismatic lens |
| CN102612661A (en) * | 2009-12-28 | 2012-07-25 | 第一毛织株式会社 | Pattern light guide plate, method for manufacturing same, and backlight unit of a liquid crystal display using same |
| CN103513321A (en) * | 2012-06-28 | 2014-01-15 | 上海天马微电子有限公司 | Light guide plate, backlight module using the same and method for manufacturing the same |
| CN103513321B (en) * | 2012-06-28 | 2018-01-30 | 上海天马微电子有限公司 | Light guide plate, backlight module using the same and method for manufacturing the same |
| CN104456412A (en) * | 2014-12-23 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Optical film, backlight and display device |
| CN109901249A (en) * | 2017-12-08 | 2019-06-18 | 胡崇铭 | The display equipment and light emitting device of optical diaphragm module and Application Optics membrane module |
| WO2019205478A1 (en) * | 2018-04-25 | 2019-10-31 | 武汉华星光电技术有限公司 | Flexible cover and flexible display device |
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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 |
Granted publication date: 20070124 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |