CN104950375A - Upper polarizing plate for liquid crystal display and liquid crystal display - Google Patents
Upper polarizing plate for liquid crystal display and liquid crystal display Download PDFInfo
- Publication number
- CN104950375A CN104950375A CN201510346208.3A CN201510346208A CN104950375A CN 104950375 A CN104950375 A CN 104950375A CN 201510346208 A CN201510346208 A CN 201510346208A CN 104950375 A CN104950375 A CN 104950375A
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- China
- Prior art keywords
- liquid crystal
- diaphragm
- crystal display
- polarizer
- film
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses an upper polarizing plate for a liquid crystal display. The upper polarizing plate comprises a first protective film or a light compensation film, a polarizer, a second protective film and a surface treatment layer which are sequentially attached, wherein the second protective film is a film having a concave-convex structure; the cross-section graph of the convex structure is of a trapezoid, or a circular arc or an irregular graph, wherein the size of the convex structure is of a 10 to 200micrometer grade. By means of the differentiated management of the upper polarizing plate and a lower polarizing plate of the liquid crystal display, when light passes through the second protective film of the upper polarizing plate, a part of light is scattered to AG granulate particles of the surface treatment layer of the upper polarizing plate in a squint angle direction by means of the concave-convex structure of the second protective film and are then scattered out from the AG granulate particles, so that not only is an anti-dazzling effect achieved, but also a wide-area viewing angle can be obtained, and meanwhile, the problem of bright spots of the polarizing plate is also solved.
Description
Technical field
The invention belongs to liquid crystal display device field, relate to the structure of polarized light plate used for liquid crystal display device.
Background technology
Liquid crystal device comprises one piece of liquid crystal panel and one piece of back light system.This liquid crystal panel is made up of layer glass substrate therebetween one liquid crystal layer, and the upper outer lower face surface of glass substrate posts Polarizer.Liquid crystal display device utilizes liquid crystal and Polarizer to realize light switch function, and liquid crystal is used for modulation to polarized light, and Polarizer is then for the formation of polarized light and Selective absorber polarized light.Usually, the material being attached to the Polarizer up and down of the upper outer lower face surface of liquid crystal panel is substantially identical, each Polarizer is made up of the sub-PVA of one deck polarisation (polyvinyl alcohol (PVA)) arrange in pairs or groups one deck TAC (Triafol T) thin layer and one deck compensate film TAC (Triafol T) thin layer of double-deck TAC (Triafol T) thin layer or one deck polarisation (PVA, polyvinyl alcohol (PVA)) of arranging in pairs or groups.Wherein, the combination difference of upper slice Polarizer and bottom sheet Polarizer is the many layer of surface process of upper Polarizer.
The structural representation of upper Polarizer as shown in Figure 1, this Polarizer comprises: adhesive layer 1, first diaphragm of fitting successively or light compensate film 21, polarisation 3, second diaphragm 22 and surface-treated layer 4.Wherein, the material of the first protective seam or light compensate film 21 and the second diaphragm 22 is TAC (Triafol T) thin layer, and the material of polarisation 3 is PVA (polyvinyl alcohol (PVA)); Surface-treated layer 4 is coating one deck cloudy surface (Anti-glare) or the process such as bright (Hard coat) or antireflection (Anti-reflection).
So-called surface-treated cloudy surface is mainly by roughness and then the anti-dizzy effect of generation of the anti-dizzy particle of the top layer TAC resin surface of Polarizer.Use have the polaroid of cloudy surface not only can cover a part scratch etc. bad, picture also can be made soft, this Polarizer is attached to above liquid crystal display as upper Polarizer, do not have the Polarizer of cloudy surface processing layer can very smooth (as bright face), can be reflective, and scuffings etc. are bad will clearly, this Polarizer without cloudy surface process is attached to below liquid crystal display as lower Polarizer.The upper slice polaroid that general industry adopts uses AG (Anti-glare) mode, and its mist degree is 25%.But when upper slice Polarizer adopts high cloudy surface, mist degree is 30% ~ 40% time, its optical look angle is compared to low haze, although better visual angle can be presented, but its center contrast can decline about 20%, also easily can there is the graininess of different-thickness in addition because of surface treatment because crawling is even, and cause being attached on panel of LCD, easily present the problem of bright spot light leak (mura).
Summary of the invention
In order to overcome the problem of prior art; the present invention provides a kind of upper Polarizer of liquid crystal display; comprise fit successively the first diaphragm or light compensate film, polarisation, the second diaphragm and surface-treated layer; it is characterized in that: the second described diaphragm is the film of concaveconvex structure; wherein, the sectional view of bulge-structure is trapezoidal or circular arc or irregular figure.
Further, size 10 ~ 200um grade of described bulge-structure;
Further, the sectional view of the second described diaphragm is the combination of irregular figure;
Further, described surface-treated layer is AG particle membrane, and its mist degree scope is 1% ~ 70%;
Further, the material of described polarisation is PVA film; The material of the first diaphragm or light compensate film and the second diaphragm is TAC film or is transparent PET film or PMMA;
Further, beyond described surface-treated layer, the form of pasting attaches above the second diaphragm, or is formed in direct coating method on the concaveconvex structure of the second diaphragm.
The present invention also provides a kind of liquid crystal device, comprises the liquid crystal panel be made up of layer glass substrate therebetween one liquid crystal layer, and the upper outer lower face surface of this liquid crystal panel posts upper Polarizer as above and lower Polarizer.
Beneficial effect: the present invention is by the differential management to the upper and lower Polarizer of liquid crystal display; when light passes through the second diaphragm of upper Polarizer; part light is scattered to the AG granular particles of the surface-treated layer of upper slice Polarizer by the concaveconvex structure of the second diaphragm with direction, angle of squint; scattered out by AG granular particles again; not only reach anti-dizzy effect; also can obtain the visual angle of wide area, also solve the problem of Polarizer bright spot simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of Polarizer of prior art;
Fig. 2 is the schematic cross-section of upper Polarizer of the present invention;
Fig. 3 is that surface-treated layer of the present invention is coated on the second protective seam schematic cross-section;
Fig. 4 is the schematic cross-section of the bulge-structure of upper Polarizer of the present invention;
Fig. 5 is the schematic cross-section of the bulge-structure of upper Polarizer of the present invention;
Fig. 6 is the schematic cross-section of liquid crystal display of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
In order to overcome the problem of prior art; the present invention provides a kind of upper Polarizer of liquid crystal display; as shown in Figure 2, this Polarizer comprises: adhesive layer 01, first diaphragm of fitting successively or light compensate film 02, polarisation 03, second diaphragm 04 and surface-treated layer 05.Wherein, the material of polarisation 03 is PVA (polyvinyl alcohol (PVA)) film; The material of the first diaphragm or light compensate film 21, second diaphragm 041 is TAC (Triafol T) film, or is transparent PET (polyethylene terephthalate) film or PMMA (polymethylmethacrylate) film.In order to the visual angle of more wide area can be obtained and solve the problem of Polarizer bright spot; second diaphragm 041 is designed to the film of concaveconvex structure; the sectional view of its this bulge-structure 41 is trapezoidal; these shape and structures can be formed by UV exposure; the size of its bulge-structure belongs to microstructure (micro-structure) grade; magnitude range is between 10 ~ 200um grade; be equivalent to microstructure (micro-structure, the um) grade of the sub-pixel size of liquid crystal display.Bulge-structure is close-packed arrays, and has space between bulge-structure, and pore size scope is between 5 ~ 200um grade.And subsides form attaches above the second diaphragm beyond surface-treated layer 4, or be formed in direct coating method on the concaveconvex structure of the second diaphragm, as shown in Figure 3, and directly make Polarizer interior layer in one-body molded mode simultaneously.The AG particle membrane that its Polarizer surface-treated layer 4 uses, its mist degree scope is 1% ~ 70%.
When light passes through the second diaphragm of upper Polarizer; part light is scattered to the AG granular particles of the surface-treated layer of upper slice Polarizer by the concaveconvex structure of the second diaphragm with direction, angle of squint; scattered out by AG granular particles again; not only reach anti-dizzy effect; also can obtain the visual angle of wide area, also solve the problem of Polarizer bright spot simultaneously.Upper Polarizer of the present invention not only can be used on narrow visual angle and wide viewing angle and compensates on polaroid, can also be used for the liquid crystal display of the display technique of TN, MVA, PSVA, UV2A, IPS pattern etc.
The sectional view of the bulge-structure 41 of the second diaphragm is the sectional view of circular arc or the second described diaphragm is the combination of irregular figure, as illustrated in figures 4-5.
The present invention gives a kind of liquid crystal device, by the differential management to the upper and lower Polarizer of liquid crystal display, especially the second diaphragm in upper Polarizer is designed to the film of concaveconvex structure.This display comprises a liquid crystal panel and a back light system.As shown in Figure 6, this liquid crystal panel 30 is made up of layer glass substrate therebetween one liquid crystal layer, and the upper outer lower face surface of glass substrate posts Polarizer 10 and lower Polarizer 20.Wherein, on this, Polarizer 10 comprises: adhesive layer 01, first diaphragm of fitting successively or light compensate film 02, polarisation 03, second diaphragm 04 and surface-treated layer 05.Wherein, the material of polarisation 03 is PVA (polyvinyl alcohol (PVA)) film; The material of the first diaphragm or light compensate film 21, second diaphragm 04 is TAC (Triafol T) film, or is transparent PET (polyethylene terephthalate) film or PMMA (polymethylmethacrylate) film.In order to the visual angle of more wide area can be obtained and solve the problem of Polarizer bright spot; second diaphragm 04 is designed to the film of concaveconvex structure; the sectional view of its this bulge-structure 41 is trapezoidal; these shape and structures can be formed by UV exposure; the size of its bulge-structure belongs to microstructure (micro-structure) grade; magnitude range is between 10 ~ 200um grade; be equivalent to microstructure (micro-structure, the um) grade of the sub-pixel size of liquid crystal display.And subsides form attaches above the second diaphragm beyond surface-treated layer 05, or be formed on the concaveconvex structure of the second diaphragm with direct coating method, the AG particle membrane that its Polarizer surface-treated layer 4 uses, its mist degree scope is 1% ~ 70%.
And lower Polarizer 20 comprises: adhesive layer 01, first diaphragm of fitting successively or light compensate film 02, polarisation 03, second diaphragm.Wherein, the material of polarisation 03 is PVA (polyvinyl alcohol (PVA)) film; The material of the first diaphragm or light compensate film, the second diaphragm 042 is TAC (Triafol T) film, or is transparent PET (polyethylene terephthalate) film or PMMA (polymethylmethacrylate) film.
By the differential management to the upper and lower Polarizer of liquid crystal display, when sticking this novel upper Polarizer above panel of LCD, optical contrast and the viewing angle characteristic benefit of liquid crystal display will be significantly improved, also can solve the phenomenon problem that prior art Polarizer material shows bad bright spot.
Claims (7)
1. the upper Polarizer of a liquid crystal display; comprise fit successively the first diaphragm or light compensate film, polarisation, the second diaphragm and surface-treated layer; it is characterized in that: the second described diaphragm is the film of concaveconvex structure; wherein, the sectional view of bulge-structure is trapezoidal or circular arc or irregular figure.
2. the upper Polarizer of a kind of liquid crystal display according to claim 1, is characterized in that: size 10 ~ 200um grade of described bulge-structure.
3. the upper Polarizer of a kind of liquid crystal display according to claim 1, is characterized in that: the sectional view of the second described diaphragm is the combination of irregular figure.
4. the upper Polarizer of a kind of liquid crystal display according to claim 1, is characterized in that: described surface-treated layer is AG particle membrane, and its mist degree scope is 1% ~ 70%.
5. the upper Polarizer of a kind of liquid crystal display according to claim 1, is characterized in that: the material of described polarisation is PVA film; The material of the first diaphragm or light compensate film and the second diaphragm is TAC film or is transparent PET film or PMMA.
6. the upper Polarizer of a kind of liquid crystal display according to claim 1-5, is characterized in that: beyond described surface-treated layer, the form of pasting attaches above the second diaphragm, or is formed in direct coating method on the concaveconvex structure of the second diaphragm.
7. a liquid crystal device, comprises the liquid crystal panel be made up of layer glass substrate therebetween one liquid crystal layer, and the upper outer lower face surface of this liquid crystal panel posts upper Polarizer as described in claim 1-6 and lower Polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346208.3A CN104950375A (en) | 2015-06-19 | 2015-06-19 | Upper polarizing plate for liquid crystal display and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346208.3A CN104950375A (en) | 2015-06-19 | 2015-06-19 | Upper polarizing plate for liquid crystal display and liquid crystal display |
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| CN104950375A true CN104950375A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510346208.3A Pending CN104950375A (en) | 2015-06-19 | 2015-06-19 | Upper polarizing plate for liquid crystal display and liquid crystal display |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896567A (en) * | 2017-03-17 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of polaroid and display device |
| CN108983513A (en) * | 2018-09-04 | 2018-12-11 | 深圳市云记科技有限公司 | A kind of conductive film and liquid crystal handwriting pad |
| CN109143447A (en) * | 2018-09-30 | 2019-01-04 | 惠科股份有限公司 | polarizing structure and display device |
| CN109143444A (en) * | 2018-09-30 | 2019-01-04 | 惠科股份有限公司 | polarizing structure, display panel and display device |
| CN109188592A (en) * | 2018-09-30 | 2019-01-11 | 惠科股份有限公司 | polarizing structure and display device |
| CN111025712A (en) * | 2018-10-10 | 2020-04-17 | 三星显示有限公司 | Liquid crystal display device and method for manufacturing the same |
| CN112424656A (en) * | 2018-07-27 | 2021-02-26 | 株式会社Lg化学 | Method for manufacturing viewing angle compensation film, method for manufacturing polarizing plate, viewing angle compensation film, polarizing plate, and display device including the same |
| WO2022082981A1 (en) * | 2020-10-23 | 2022-04-28 | 惠州市华星光电技术有限公司 | Polarization structure and liquid crystal display device |
| CN115032733A (en) * | 2022-01-21 | 2022-09-09 | 住华科技股份有限公司 | Polarizing plate, surface protective film for polarizing plate, and method for attaching polarizing plate |
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| CN103354916A (en) * | 2011-02-16 | 2013-10-16 | 住友化学株式会社 | Liquid crystal panel and liquid crystal display device using same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896567B (en) * | 2017-03-17 | 2019-06-14 | 京东方科技集团股份有限公司 | A kind of polaroid and display device |
| WO2018166182A1 (en) * | 2017-03-17 | 2018-09-20 | 京东方科技集团股份有限公司 | Polarizer and display device |
| US10983384B2 (en) | 2017-03-17 | 2021-04-20 | Boe Technology Group Co., Ltd. | Polarizer and display device |
| CN106896567A (en) * | 2017-03-17 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of polaroid and display device |
| CN112424656A (en) * | 2018-07-27 | 2021-02-26 | 株式会社Lg化学 | Method for manufacturing viewing angle compensation film, method for manufacturing polarizing plate, viewing angle compensation film, polarizing plate, and display device including the same |
| CN112424656B (en) * | 2018-07-27 | 2023-09-05 | 株式会社Lg化学 | Method for manufacturing viewing angle compensation film, method for manufacturing polarizing plate, viewing angle compensation film, polarizing plate, and display device including the same |
| CN108983513A (en) * | 2018-09-04 | 2018-12-11 | 深圳市云记科技有限公司 | A kind of conductive film and liquid crystal handwriting pad |
| CN109188592A (en) * | 2018-09-30 | 2019-01-11 | 惠科股份有限公司 | polarizing structure and display device |
| CN109143444A (en) * | 2018-09-30 | 2019-01-04 | 惠科股份有限公司 | polarizing structure, display panel and display device |
| WO2020062560A1 (en) * | 2018-09-30 | 2020-04-02 | 惠科股份有限公司 | Polarizing structure and display device |
| CN109143447A (en) * | 2018-09-30 | 2019-01-04 | 惠科股份有限公司 | polarizing structure and display device |
| CN111025712A (en) * | 2018-10-10 | 2020-04-17 | 三星显示有限公司 | Liquid crystal display device and method for manufacturing the same |
| WO2022082981A1 (en) * | 2020-10-23 | 2022-04-28 | 惠州市华星光电技术有限公司 | Polarization structure and liquid crystal display device |
| CN115032733A (en) * | 2022-01-21 | 2022-09-09 | 住华科技股份有限公司 | Polarizing plate, surface protective film for polarizing plate, and method for attaching polarizing plate |
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