JP2016161943A - 偏光板及びこれを含む液晶表示装置 - Google Patents
偏光板及びこれを含む液晶表示装置 Download PDFInfo
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Classifications
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- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding 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
- G02B1/14—Protective coatings, e.g. hard coatings
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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
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
-
- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/03—Viewing layer characterised by chemical composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/03—Viewing layer characterised by chemical composition
- C09K2323/035—Ester polymer, e.g. polycarbonate, polyacrylate or polyester
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/05—Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
-
- 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
- G02F1/133507—Films for enhancing the luminance
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
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- Optical Elements Other Than Lenses (AREA)
Abstract
【解決手段】偏光子10、並びに前記偏光子の一面上に形成された、一つ以上の陰刻パターン207を有する高屈折層202、及び陰刻パターン207の少なくとも一部を充填する充填パターン205を含む低屈折層201を含むパターン層20を含み、偏光板は第1の保護層20をさらに含み、偏光板100は、偏光子10、低屈折層201、高屈折層202、及び第1の保護層30が順次積層された構造であるか、偏光子10、第1の保護層30、低屈折層201、及び高屈折層202が順次積層された構造であり、第1の保護層30は、トリアセチルセルロース(TAC)、ポリエチレンテレフタレート、環状オレフィンポリマー(COP)、及びアクリル樹脂のうち一つ以上で形成された基材フィルムを含む偏光板。
【選択図】図1
Description
Re=(nx−ny)×d
Rth=((nx+ny)/2−nz)×d
NZ=(nx−nz)/(nx−ny)
Claims (16)
- 偏光子、並びに
前記偏光子の一面上に形成された、一つ以上の陰刻パターンを有する高屈折層、及び前記陰刻パターンの少なくとも一部を充填する充填パターンを含む低屈折層を含むパターン層を含む偏光板であって、
前記偏光板は第1の保護層をさらに含み、
前記偏光板は、前記偏光子、前記低屈折層、前記高屈折層、及び前記第1の保護層が順次積層された構造であるか、前記偏光子、前記第1の保護層、前記低屈折層、及び前記高屈折層が順次積層された構造であり、
前記第1の保護層は、トリアセチルセルロース(TAC)、ポリエチレンテレフタレート、環状オレフィンポリマー(COP)、及びアクリル樹脂のうち一つ以上で形成された基材フィルムを含み、
前記高屈折層の屈折率は前記低屈折層の屈折率より大きい偏光板。 - 前記陰刻パターンは、曲面を含む光学パターンまたは断面がn角形(nは、4〜10の整数)であるプリズムパターンを含む、請求項1に記載の偏光板。
- 前記陰刻パターンは、断面が三角形であるプリズムの上部が切断された形態、レンチキュラーレンズパターンの上部が切断された形態、または最上面に一つ以上の平面が形成され、断面がn角形(nは、5以上の整数)である陰刻パターンを含む、請求項1に記載の偏光板。
- 前記各陰刻パターンの間に平坦部がさらに形成された、請求項1に記載の偏光板。
- 前記平坦部の幅に対する前記陰刻パターンの最大幅の比は約1以下である、請求項4に記載の偏光板。
- 前記高屈折層と前記低屈折層の屈折率差は約0.30以下である、請求項1に記載の偏光板。
- 前記第1の保護層は、波長550nmにおいて面方向位相差(Re)が約8,000nm以上である、ポリエチレンテレフタレート樹脂で形成されたものである、請求項1に記載の偏光板。
- 前記第1の保護層は、前記基材フィルム、及び前記基材フィルムの少なくとも一面に形成されたプライマー層を含み、前記基材フィルムの屈折率に対する前記プライマー層の屈折率の比は約1.0以下である、請求項1に記載の偏光板。
- 前記第1の保護層は、波長550nmにおいて光透過率が約90%以上である、請求項8に記載の偏光板。
- 前記第1の保護層は、前記ポリエチレンテレフタレート樹脂で形成された基材フィルムを1軸延伸したものである、請求項1に記載の偏光板。
- 前記偏光子上に前記低屈折層、前記高屈折層及び前記第1の保護層が順次積層されたものである、請求項1に記載の偏光板。
- 前記高屈折層と前記第1の保護層は直接接している、請求項11に記載の偏光板。
- 前記偏光子と前記低屈折層の間に形成された接着層をさらに含む、請求項11に記載の偏光板。
- 前記偏光子の他面上に形成された第2の保護層をさらに含む、請求項1に記載の偏光板。
- 前記第2の保護層がトリアセチルセルロース(TAC)、ポリエチレンテレフタレート、環状オレフィンポリマー(COP)、及びアクリル樹脂のうち一つ以上で形成されたフィルムを含む、請求項14に記載の偏光板。
- 請求項1に記載の偏光板を含む液晶表示装置。
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Also Published As
Publication number | Publication date |
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US11988811B2 (en) | 2024-05-21 |
US20200393604A1 (en) | 2020-12-17 |
CN105929476B (zh) | 2021-12-07 |
TW201631340A (zh) | 2016-09-01 |
US20240094454A1 (en) | 2024-03-21 |
JP7394102B2 (ja) | 2023-12-07 |
US10775539B2 (en) | 2020-09-15 |
CN105929476A (zh) | 2016-09-07 |
JP7152129B2 (ja) | 2022-10-12 |
US20160252665A1 (en) | 2016-09-01 |
JP2022025112A (ja) | 2022-02-09 |
CN114047573A (zh) | 2022-02-15 |
TWI613469B (zh) | 2018-02-01 |
JP2023133583A (ja) | 2023-09-22 |
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