WO2001013147A1 - Element polarisant de diffusion et afficheur a cristaux liquides - Google Patents
Element polarisant de diffusion et afficheur a cristaux liquides Download PDFInfo
- Publication number
- WO2001013147A1 WO2001013147A1 PCT/JP2000/005379 JP0005379W WO0113147A1 WO 2001013147 A1 WO2001013147 A1 WO 2001013147A1 JP 0005379 W JP0005379 W JP 0005379W WO 0113147 A1 WO0113147 A1 WO 0113147A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- polarizing member
- diffusion
- light
- crystal display
- Prior art date
Links
Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0294—Diffusing elements; Afocal elements characterized by the use adapted to provide an additional optical effect, e.g. anti-reflection or filter
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133536—Reflective polarizers
-
- 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
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133567—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the back side
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/09—Function characteristic transflective
Definitions
- the present invention relates to a diffusion polarizing member suitable for forming a reflective or semi-transmissive liquid crystal display device, which can suppress coloring in a perspective direction and achieve a bright display.
- the coloring is caused by scattering by the birefringent multilayer film in the linearly polarized light separating plate, and maintains the parallel relationship between the polarization axis and the slow axis of the quarter-wave plate in all directions in the circularly polarized light separating plate. This is because it is difficult.
- An object of the present invention is to develop a diffusion polarizing member capable of forming a reflective or transflective liquid crystal display device with little display unevenness such as coloring in a perspective direction. Disclosure of the invention
- the present invention comprises a laminate of a reflective polarizer and a diffusion layer that separates incident natural light into reflected light and transmitted light composed of polarized light, and the coloration in a perspective direction between the reflective polarizer and the diffusion layer is in a complementary color relationship.
- Another object of the present invention is to provide a diffusion polarizing member characterized by the above, and a liquid crystal display device having the diffusion polarizing member.
- FIG. 1 is a cross-sectional view of an example of a liquid crystal display device.
- FIG. 2 is a cross-sectional view of another example of the liquid crystal display device. BEST MODE FOR CARRYING OUT THE INVENTION
- the diffused polarizing member according to the present invention comprises a laminate of a reflective polarizer and a diffuser layer that separates incident natural light into reflected light and transmitted light composed of polarized light, and a perspective view between the reflective polarizer and the diffuser layer.
- the coloring has a complementary color relationship.
- the reflective polarizing plate an appropriate one that reflects linearly polarized light in a predetermined polarization direction or circularly polarized light in a predetermined direction when natural light is incident and that transmits other light is used.
- Examples include linearly polarized light that transmits linearly polarized light in a predetermined polarization direction and reflects other light, such as a multilayer thin film of a dielectric or a multilayer laminate of thin films with different refractive index anisotropy.
- Circularly polarized light separators have the characteristic of reflecting and transmitting circularly polarized light in a wide wavelength range such as the visible light range, with an arrangement structure in which two or more cholesteric liquid crystal layers are superimposed in combinations with different reflection wavelengths. It may be the one that was used.
- the circularly polarized light separating plate provides circularly polarized light, it can be used in combination with a retardation plate for the purpose of, for example, converting the circularly polarized light into linearly polarized light.
- a retardation plate an appropriate retardation plate can be used, but a quarter-wave plate can be preferably used from the viewpoint of efficiently converting circularly polarized light into linearly polarized light.
- the retardation plate or quarter-wave plate may be composed of one or more retardation layers.
- the retardation plate or the retardation layer is, for example, a birefringent film composed of a stretched film of various polymers, an alignment film of a liquid crystal polymer such as a discotic type or a nematic type, and a film based on the alignment liquid crystal layer. It can be obtained as a material supported on a material.
- the polymer forming the birefringent film is, for example, an olefin polymer such as polyethylene, polypropylene, or a polyolefin having a norbornene structure, a polyester polymer, an acrylic polymer such as polymethyl methacrylate, or a cellulosic polymer; Polyamide-polyimide, polysulfone-polyether-tersulfone, polyetheretherketone or polyphenylenesulfide, polyvinyl alcohol-polyvinyl chloride, polyvinyl butyrate-polypropylene, polystyrene, polyarylate, poly Any suitable material such as oxymethylene may be used.
- an olefin polymer such as polyethylene, polypropylene, or a polyolefin having a norbornene structure
- a polyester polymer such as polymethyl methacrylate, or a cellulosic polymer
- the stretched film may be processed by an appropriate method such as uniaxial or biaxial, and the thickness of the film is adjusted by applying a shrinking force and / or a stretching force while bonding with the heat shrinkable film.
- a birefringent film having a controlled refractive index in the vertical direction may be used.
- the diffusion layer can be formed as a resin layer containing transparent fine particles.
- transparent fine particles one or more suitable transparent particles can be used, but in general, there are also conductive materials such as silica, alumina, titania, zirconia, tin oxide, indium oxide, cadmium oxide, and antimony oxide.
- Organic fine particles such as inorganic fine particles and cured or uncured resin particles are used.
- the diffusion layer composed of the above resin layer may be appropriately formed of a coating layer formed on a reflective polarizing plate or a retardation plate, a resin film containing transparent fine particles, or a diffusion sheet supporting the resin layer on a base material. It can be formed in the form.
- the resin containing and retaining the transparent fine particles includes, for example, the polymer exemplified in the above retardation plate, or a thermosetting type such as a phenol-based, melamine-based, acrylic-based, urethane-based, urethane-acrylic-based, epoxy-based, or silicone-based resin.
- a UV-curable resin may be used.
- the coloring in the oblique direction in the diffusion layer can be controlled by the particle size and content (particle density) of the transparent fine particles, the refractive index difference between the resin and the transparent fine particles, and the like. Therefore, the average particle size of the transparent fine particles to be used can be appropriately determined according to the coloring or the like. In general, those having an average particle size of 50 ⁇ m or less, especially 0.1 to 20 ⁇ m, particularly 0.5 to 10 ⁇ m are used.
- the content of the transparent fine particles is appropriately determined according to the above-mentioned coloring and the like.
- the transparent fine particles are contained in an amount of not more than 200 parts by weight, preferably 1 to 100 parts by weight, particularly 5 to 50 parts by weight, per 100 parts by weight of the resin.
- the thickness of the resin layer is generally 500 m or less, preferably 1 to 200 m, particularly 5 to 100 m, but is not limited thereto.
- the reflective polarizing plate and the diffusion layer are used in a combination in which coloring in the oblique direction is a complementary color relationship, that is, the coloring in the case where the reflective polarizing plate is independently perspectiveed and the diffusion layer in perspective. It is used in a combination in which the coloring of the case has a complementary color relationship. This makes it possible to cancel each coloring based on the complementary color relationship and weaken the coloring as a whole (neutralization).
- the lamination of the reflective polarizing plate and the diffusion layer may be in a state of being simply placed on top of each other, or may be in a state of being adhered and fixed with a suitable adhesive such as an adhesive layer.
- Position of the diffusion layer to the c reflective polarizer that can be brought into close contact with the reflective polarizer like without the need diffusion layer of the adhesive according to the coating scheme described above is filed on the viewing side relative to the visible side is Or on the rear side of the viewer.
- the arrangement position may be between the reflective polarizing plate and the diffusion layer, or the arrangement may be such that the diffusion layer is located between the reflective polarizing plate and the retardation plate. Is also good.
- a light absorbing layer can be added to the diffusion polarizing member.
- the light absorbing layer reflects light transmitted through the reflective polarizing plate on the lower surface and becomes unnecessary return light.
- the contrast may be lowered by lowering the level of black display. Therefore, the object is to prevent the contrast from being lowered by absorbing the unnecessary return light. Therefore, the light absorption layer is provided on the viewing back side of the diffusion polarizing member with reference to the viewing side.
- the light absorbing layer can be formed according to a conventional method.
- the resin layer include a resin layer and a resin in which one or more kinds of appropriate light-absorbing substances such as force—pump rack and dye are contained or held by an appropriate method such as a dispersion method or a coating method.
- Examples include films.
- the light transmittance of the light absorbing layer can be appropriately determined according to the liquid crystal display device to be formed or the like. In general, when forming a reflective liquid crystal display device, it is preferable to use an absorption layer having a light transmittance of 1% or less, and when forming a semi-transmissive liquid crystal display device, it is preferable to use a light transmittance layer. Is preferably a 10 to 60% light absorbing layer.
- the diffusion polarizing member according to the present invention can be used for various applications such as formation of a transflective, reflective or transmissive liquid crystal display device.
- it can be preferably used for forming a transflective or reflective liquid crystal display device.
- the diffused polarizing member according to the present invention is generally arranged on the viewing back side of the liquid crystal cell, such as between the liquid crystal cell and the lighting device, but can also be arranged on the viewing side of the liquid crystal cell. .
- FIGS. 1 illustrates a reflection type liquid crystal display device
- FIG. 2 illustrates a semi-transmission type liquid crystal display device.
- the diffusely polarizing member 1 in FIG. 1 is formed using a linearly polarized light separating plate 12, and the diffusely polarizing member 1 in FIG. 2 is formed using a circularly polarized light separating plate 15.
- 11 is a diffusion layer, 13 and 16 are light absorption layers, and 14 is a retardation plate (1/4 wavelength plate).
- the liquid crystal display device can be formed according to the conventional method except that the diffusion polarizing member according to the present invention is used. Therefore, the liquid crystal cell to be used is arbitrary. For example, an appropriate liquid crystal cell such as an active matrix driving type typified by a thin film transistor type, a simple matrix driving type typified by a twisted nematic type or a super twist nematic type, or the like can be used. Various liquid crystal display devices can be formed by using a type of liquid crystal cell.
- a prism array sheet or a lens array sheet for controlling an optical path, or compensation for compensating for a phase difference.
- Components such as a phase difference plate, a light diffusing plate, and a backlight can be arranged in one or more layers at appropriate positions.
- the above-mentioned absorption type polarizing plate is used as needed for the purpose of controlling the polarization state of linearly polarized light forming display light.
- an appropriate polarizing plate that transmits linearly polarized light in a predetermined polarization direction and absorbs other light can be used, and the type thereof is not particularly limited.
- iodine and / or a dichroic dye is added to a hydrophilic polymer film such as a polyvinyl alcohol-based film, a partially formalized polyvinyl alcohol-based film, and an ethylene-vinyl acetate copolymer-based partially saponified film.
- dehydrated polyvinyl alcohol Polarized films such as those obtained by orienting polyene such as dehydrochlorinated products of vinyl chloride.
- the absorption type polarizing plate may be one in which a transparent protective layer is provided on one or both sides of the polarizing film for the purpose of protection such as improvement of water resistance and reinforcement.
- a transparent protective layer is formed on one or both sides of the polarizing film for the purpose of protection such as improvement of water resistance and reinforcement.
- a polymer which is excellent in transparency, mechanical strength, heat stability, moisture shielding property and the like is preferably used.
- examples of the polymer include cellulosic polymers such as cellulose diacetate and cellulose triacetate, polyester polymers such as polyethylene terephthalate and polyethylene naphtholate, polyether sulfone and polyacrylonitrile, and polyamide polyamide. And thermosetting or ultraviolet curable resins such as acryl-based, urethane-based, acrylic urethane-based, epoxy-based and silicone-based resins.
- the transparent protective layer can be formed by an appropriate method such as a coating method of a polymer liquid ⁇ a film, but an adhesive lamination method.
- Diffusion polarizing member All or a part of each forming layer such as a reflective polarizing plate or a diffusion layer, a retardation plate or an absorption polarizing plate forming a liquid crystal display device is simply placed as described above.
- the adhesive be fixed by an appropriate method using an adhesive or the like from the viewpoint of prevention of misalignment of the axial relationship and prevention of foreign matter from entering between layers.
- an appropriate adhesive such as an acrylic polymer, a silicone polymer, an appropriate polymer such as a polyester or a polyurethane, a polyester or a synthetic rubber as a base polymer may be used. .
- examples of the acryl-based pressure-sensitive adhesive include an alkyl ester of (meth) acrylic acid having an alkyl group having 20 or less carbon atoms such as a methyl group, an ethyl group, and a butyl group; and (meth) acrylic acid.
- Polymer based poly Examples include, but are not limited to:
- the adhesive layer may be attached to the reflective polarizing plate or the like, for example, by directly applying an adhesive liquid by an appropriate developing method such as a casting method or a coating method, or by applying an adhesive layer on a separator according to the above. It can be performed by an appropriate method such as a method of forming and transferring it.
- the pressure-sensitive adhesive layer can be provided on one or both surfaces of a reflective polarizing plate or the like, and the provided pressure-sensitive adhesive layer may be a superposed layer of a different composition or type. When an adhesive layer is provided on both surfaces, the adhesive layer may have a different composition or type on the front and back of a reflective polarizing plate or the like.
- the thickness of the adhesive layer such as the adhesive layer can be appropriately determined according to the adhesive strength and the like, and is generally 1 to 500 / m.
- the adhesive layer is exposed on the outer surface of the diffusion polarizing member or the like, it is preferable to temporarily cover the surface with a separator or the like until practical use to prevent contamination and the like.
- An acrylic adhesive layer is applied to one side of a reflective polarizing plate (PCF350, manufactured by Nitto Denko Corporation) in which a 1 Z 4 wavelength plate is adhered to one side of a circularly polarized light separating plate made of cholesteric liquid crystal via an acryl-based adhesive layer. Then, a diffusion sheet was adhered via the above to obtain a diffusion polarizing member.
- the diffusion sheet is made of an acrylic resin having a refractive index of 1.48 and melamine resin particles having an average particle diameter of 0.4 ⁇ m and a refractive index of 1.58 (based on 100 parts by weight of acryl resin). 30 parts by weight), and is colored light blue in the oblique direction.
- the reflective polarizing plate is colored pale yellow in the oblique direction.
- a reflective polarizing plate composed of a linearly polarized light separating plate (DBEF, manufactured by 3M) that is colored pale red in the oblique direction
- DBEF linearly polarized light separating plate
- a reflection sheet that contains epoxy resin particles having a refractive index of 1.53 (30 parts by weight with respect to 100 parts by weight of an acrylic resin) and is colored in pale green in a perspective direction is added.
- a diffusion polarizing member was obtained.
- an acrylic resin with a refractive index of 1.48 has an average particle size of 4 ⁇ m. Conducted except that it used a silicone-based resin particle with a refractive index of 1.43 (30 parts by weight based on 100 parts by weight of acryl-based resin) and was colored pale yellow in the oblique direction.
- a diffused polarizing member was obtained according to Example 1.
- the colored state was examined by obliquely observing the diffused polarizing members obtained in the examples and comparative examples. The results are shown in the following table.
- the coloring by the reflective polarizing plate in the oblique direction can be canceled by the coloring by the diffusion layer in a complementary color relationship with the reflective polarizing plate. It is possible to provide a liquid crystal display device having a small number of components.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/049,310 US6809782B1 (en) | 1999-08-18 | 2000-08-10 | Diffusing polarizing member and liquid crystal display |
KR1020027001982A KR20020037344A (ko) | 1999-08-18 | 2000-08-10 | 확산 편광 부재 및 액정 표시장치 |
EP00951943A EP1211526A4 (en) | 1999-08-18 | 2000-08-10 | POLARIZING DIFFUSION ELEMENT AND LIQUID CRYSTAL DISPLAY |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11231256A JP2001056410A (ja) | 1999-08-18 | 1999-08-18 | 拡散偏光部材及び液晶表示装置 |
JP11/231256 | 1999-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001013147A1 true WO2001013147A1 (fr) | 2001-02-22 |
Family
ID=16920775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/005379 WO2001013147A1 (fr) | 1999-08-18 | 2000-08-10 | Element polarisant de diffusion et afficheur a cristaux liquides |
Country Status (6)
Country | Link |
---|---|
US (1) | US6809782B1 (ja) |
EP (1) | EP1211526A4 (ja) |
JP (1) | JP2001056410A (ja) |
KR (2) | KR20060080940A (ja) |
CN (1) | CN1207583C (ja) |
WO (1) | WO2001013147A1 (ja) |
Families Citing this family (31)
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EP1214613A1 (en) * | 1999-09-20 | 2002-06-19 | 3M Innovative Properties Company | Optical films having at least one particle-containing layer |
NZ514500A (en) | 2001-10-11 | 2004-06-25 | Deep Video Imaging Ltd | A multiplane visual display unit with a transparent emissive layer disposed between two display planes |
US20030214632A1 (en) * | 2002-05-16 | 2003-11-20 | Jiaying Ma | Projection display system |
JP2005533275A (ja) | 2002-07-15 | 2005-11-04 | ピュアー デプス リミテッド | 改善された多層ビデオ画面 |
JP4523246B2 (ja) * | 2002-08-09 | 2010-08-11 | セイコーインスツル株式会社 | 液晶表示装置 |
KR20040031858A (ko) * | 2002-10-04 | 2004-04-14 | 삼성전자주식회사 | 액정표시장치 |
US7245074B2 (en) * | 2003-07-24 | 2007-07-17 | General Electric Company | Organic electroluminescent devices having improved light extraction |
US7234816B2 (en) | 2004-02-03 | 2007-06-26 | 3M Innovative Properties Company | Polarizing beam splitter assembly adhesive |
TW200613782A (en) * | 2004-10-08 | 2006-05-01 | Samsung Electronics Co Ltd | Diffusely reflective polarizing film, display apparatus having the same, and method of manufacturing the same |
US7710511B2 (en) * | 2004-10-15 | 2010-05-04 | 3M Innovative Properties Company | Liquid crystal displays with laminated diffuser plates |
US7446827B2 (en) * | 2004-10-15 | 2008-11-04 | 3M Innovative Properties Company | Direct-lit liquid crystal displays with laminated diffuser plates |
US7411641B2 (en) | 2004-11-09 | 2008-08-12 | Chunghwa Picture Tubes, Ltd. | Liquid crystal display panel and liquid crystal display module |
US7315418B2 (en) | 2005-03-31 | 2008-01-01 | 3M Innovative Properties Company | Polarizing beam splitter assembly having reduced stress |
US20060291055A1 (en) * | 2005-06-15 | 2006-12-28 | 3M Innovative Properties Company | Diffuse Multilayer Optical Article |
US7924368B2 (en) * | 2005-12-08 | 2011-04-12 | 3M Innovative Properties Company | Diffuse multilayer optical assembly |
KR100766179B1 (ko) * | 2005-12-28 | 2007-10-10 | 삼성정밀화학 주식회사 | 확산패턴을 갖는 일체형 광대역 반사형 고휘도 편광판, 그제조방법 및 이를 구비하는 액정표시장치 |
TWI334943B (en) * | 2006-03-02 | 2010-12-21 | Hannstar Display Corp | Twisted nematic liquid crystal display |
US7905650B2 (en) * | 2006-08-25 | 2011-03-15 | 3M Innovative Properties Company | Backlight suitable for display devices |
TWI348561B (en) * | 2007-05-02 | 2011-09-11 | Ind Tech Res Inst | Diffusing polarizer and backlight module using the same |
EP2191657A1 (en) | 2007-08-22 | 2010-06-02 | Pure Depth Limited | Determining a position for an interstitial diffuser for a multi-component display |
JP5034909B2 (ja) * | 2007-12-03 | 2012-09-26 | 大日本印刷株式会社 | 光学シート、及び表示装置 |
EP2128661A1 (en) * | 2008-05-27 | 2009-12-02 | LG Electronics Inc. | Optical sheet and liquid crystal display including the same |
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Also Published As
Publication number | Publication date |
---|---|
CN1478207A (zh) | 2004-02-25 |
EP1211526A1 (en) | 2002-06-05 |
EP1211526A4 (en) | 2006-04-12 |
KR20060080940A (ko) | 2006-07-11 |
JP2001056410A (ja) | 2001-02-27 |
US6809782B1 (en) | 2004-10-26 |
CN1207583C (zh) | 2005-06-22 |
KR20020037344A (ko) | 2002-05-18 |
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