JP6778658B2 - 偏光子保護フィルム、これを含む偏光板、及びこれを備えた表示装置 - Google Patents
偏光子保護フィルム、これを含む偏光板、及びこれを備えた表示装置 Download PDFInfo
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- JP6778658B2 JP6778658B2 JP2017120398A JP2017120398A JP6778658B2 JP 6778658 B2 JP6778658 B2 JP 6778658B2 JP 2017120398 A JP2017120398 A JP 2017120398A JP 2017120398 A JP2017120398 A JP 2017120398A JP 6778658 B2 JP6778658 B2 JP 6778658B2
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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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding 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
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Description
Xc[%]=dc(d−da)/d(dc−da)*100
前記保護フィルムの素材としてポリエチレンテレフタレート(PET)樹脂(SKC社製)を使った。PET樹脂を押出機で約280℃で押し出し、キャスティングロールで約30℃でキャスティングして未延伸シート(sheet)を製造した。
前記実施例及び比較例による保護フィルムの面内位相差(Ro)、厚さ方向位相差(Rth)、有効幅内の面内位相差(Ro,max−Ro,min)及び有効幅内の厚さ方向位相差(Rth,max−Rth,min)を測定した。その結果は下記の表2の通りである。
1)幅の中心での面内位相差(Ro)
前記実施例及び比較例による保護フィルムを表示装置に適用したときの外観評価、結晶化度、密度、鉛筆硬度、ハードコーティング適用後の鉛筆硬度及び高温での引張係数を測定した。その結果は下記の表3及び表4の通りである。
1)視認性は波柄及び眩しさ現状の発生有無で評価した。評価基準は次のようである。
11 偏光子
12 偏光子保護フィルム
Claims (10)
- ポリエチレンテレフタレート(polyethylene terephthalate、PET)を含み、
波長550nmで面内位相差及び厚さ方向位相差が以下の(1)及び(2)の条件を満たし、
(1)面内位相差(Ro)≦350nm
(2)16,000nm≧厚さ方向位相差(Rth)≧6,000nm
有効幅内の厚さ方向位相差の変化量(Rth,max−Rth,min)が1,500nm/m以下である、偏光子保護フィルムであって、
前記有効幅は、幅の中心から±1500mmであり、
前記偏光子保護フィルムは、3.1〜3.3の長さ方向(MD)の延伸比及び3.4〜3.5の幅方向(TD)の延伸比を有し、
前記偏光子保護フィルムは、0.91〜0.94の幅方向(TD)の延伸比に対する長さ方向(MD)の延伸比の比(MD/TD)を有し、
前記偏光子保護フィルムは、40μm〜50μmの厚さを有し、
前記偏光子保護フィルムは、35〜55%の結晶化度(Xc)を有し、且つ
前記結晶化度(Xc)は、下記式1により算出される、前記偏光子保護フィルム:
式1:Xc(%)=dc(d−da)/d(dc−da)×100
式中、Xcは結晶化度を表し、dcは結晶部分の密度(g/cm3)を表し、daは非結晶部分の密度(g/cm3)を表し、dは測定地点の密度(g/cm3)を表す。 - 幅の中心で厚さ方向位相差(Rth)が6,800nm以上である、請求項1に記載の偏光子保護フィルム。
- 幅の中心で面内位相差(Ro)が200nm以下である、請求項1に記載の偏光子保護フィルム。
- 幅の中心から幅方向に±500mm距離内での面内位相差(Ro)が250nm以下である、請求項1に記載の偏光子保護フィルム。
- 幅の中心から幅方向に±1000mm距離内での面内位相差(Ro)が300nm以下である、請求項1に記載の偏光子保護フィルム。
- 有効幅内の面内位相差の変化量(Ro,max−Ro,min)が250nm/m以下である、請求項1に記載の偏光子保護フィルム。
- 有効幅内で幅変化量に対する面内位相差の変化量(|ΔRo|/|Δx|)が0.3nm/mm未満である、請求項1に記載の偏光子保護フィルム。
- 前記偏光子保護フィルムは長さ方向及び幅方向に延伸された後、160℃〜230℃の温度で熱処理されたものである、請求項1に記載の偏光子保護フィルム。
- 偏光子、及び
前記偏光子の上面及び下面の少なくとも一面に隣接する請求項1〜8のいずれか一項の偏光子保護フィルムを含む、偏光板。 - 表示パネル、及び
前記表示パネルの上面及び下面の少なくとも一面に配置される請求項9に記載の偏光板を含む、表示装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2016-0076724 | 2016-06-20 | ||
KR1020160076724A KR101694258B1 (ko) | 2016-06-20 | 2016-06-20 | 편광자 보호 필름, 이를 포함하는 편광판, 및 이를 구비한 표시 장치 |
Publications (2)
Publication Number | Publication Date |
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JP2017227900A JP2017227900A (ja) | 2017-12-28 |
JP6778658B2 true JP6778658B2 (ja) | 2020-11-04 |
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JP2017120398A Active JP6778658B2 (ja) | 2016-06-20 | 2017-06-20 | 偏光子保護フィルム、これを含む偏光板、及びこれを備えた表示装置 |
Country Status (5)
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US (1) | US10088607B2 (ja) |
JP (1) | JP6778658B2 (ja) |
KR (1) | KR101694258B1 (ja) |
CN (1) | CN107272106B (ja) |
TW (1) | TWI628455B (ja) |
Families Citing this family (9)
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TWI649591B (zh) * | 2016-05-31 | 2019-02-01 | 南韓商Skc股份有限公司 | 偏光件用保護膜、包含該膜之偏光板及具有該偏光板之顯示裝置 |
KR101694257B1 (ko) | 2016-06-20 | 2017-01-10 | 에스케이씨 주식회사 | 편광자 보호 필름, 이를 포함하는 편광판, 및 이를 구비한 표시 장치 |
JP7240089B2 (ja) * | 2017-10-03 | 2023-03-15 | 日東電工株式会社 | 偏光板、画像表示装置、および偏光板の製造方法 |
JP7121479B2 (ja) * | 2017-11-14 | 2022-08-18 | 株式会社トッパンTomoegawaオプティカルフィルム | 光学積層体、偏光板及び表示装置 |
JP7476791B2 (ja) | 2018-03-09 | 2024-05-01 | 大日本印刷株式会社 | 導電性フィルム、センサー、タッチパネル、および画像表示装置 |
KR102313377B1 (ko) * | 2018-05-11 | 2021-10-14 | 주식회사 엘지화학 | 눈부심 방지 필름 및 디스플레이 장치 |
JP7259216B2 (ja) * | 2018-06-04 | 2023-04-18 | 三菱ケミカル株式会社 | 偏光子保護フィルム |
TW202116974A (zh) * | 2019-10-24 | 2021-05-01 | 友輝光電股份有限公司 | 量子點膜及其製作方法 |
US11630239B2 (en) * | 2019-10-28 | 2023-04-18 | Skc Co., Ltd. | Polyester film and flexible display apparatus comprising same |
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TWI266907B (en) * | 2002-07-24 | 2006-11-21 | Nitto Denko Corp | Polarizing device, optical thin film using the same, and image display device using the same |
KR101287740B1 (ko) | 2005-04-08 | 2013-07-18 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 광학 필름의 열 경화법 |
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EP2824506B1 (en) | 2010-06-22 | 2020-05-20 | Toyobo Co., Ltd. | Liquid crystal display device, polarizer and protective film |
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US9358768B2 (en) | 2012-12-17 | 2016-06-07 | Samsung Sdi Co., Ltd. | Polarizing plate, method of preparing the same, and liquid crystal display apparatus including the same |
KR101768253B1 (ko) * | 2013-05-30 | 2017-08-14 | 제일모직주식회사 | 편광판, 이의 제조방법 및 이를 포함하는 액정표시장치 |
KR101337005B1 (ko) * | 2013-03-29 | 2013-12-04 | 제일모직주식회사 | 편광판용 보호필름, 이를 포함하는 편광판 및 이를 포함하는 액정표시장치 |
KR101802216B1 (ko) | 2013-07-08 | 2017-11-28 | 후지필름 가부시키가이샤 | 광학 필름, 편광판, 화상 표시 장치 및 광학 필름의 제조 방법 |
KR20150027684A (ko) * | 2013-08-29 | 2015-03-12 | 삼성에스디아이 주식회사 | 편광판, 이의 제조방법 및 이를 포함하는 액정표시장치 |
JP6153440B2 (ja) | 2013-10-03 | 2017-06-28 | 日東電工株式会社 | 位相差フィルムおよびその製造方法、ならびに該位相差フィルムを含む円偏光板 |
KR20150114860A (ko) * | 2014-04-02 | 2015-10-13 | 에스케이씨 주식회사 | 편광판 제조용 폴리에스테르 보호필름과 이를 이용한 편광판 |
KR102253510B1 (ko) | 2014-05-07 | 2021-05-18 | 에스케이씨 주식회사 | 편광자 보호필름과 이를 이용한 편광판 |
TWI556964B (zh) | 2014-05-07 | 2016-11-11 | Skc股份有限公司 | 保護膜、偏光板及包含其之顯示裝置 |
JP6690907B2 (ja) | 2014-09-30 | 2020-04-28 | 住友化学株式会社 | 光学積層体、複合偏光板及び液晶表示装置 |
KR101900530B1 (ko) * | 2014-11-26 | 2018-09-20 | 삼성에스디아이 주식회사 | 편광판 및 이를 포함하는 액정표시장치 |
KR101694257B1 (ko) | 2016-06-20 | 2017-01-10 | 에스케이씨 주식회사 | 편광자 보호 필름, 이를 포함하는 편광판, 및 이를 구비한 표시 장치 |
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- 2017-06-19 US US15/626,246 patent/US10088607B2/en active Active
- 2017-06-19 TW TW106120355A patent/TWI628455B/zh active
- 2017-06-20 JP JP2017120398A patent/JP6778658B2/ja active Active
- 2017-06-20 CN CN201710470164.4A patent/CN107272106B/zh active Active
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US10088607B2 (en) | 2018-10-02 |
US20170363779A1 (en) | 2017-12-21 |
TWI628455B (zh) | 2018-07-01 |
CN107272106A (zh) | 2017-10-20 |
JP2017227900A (ja) | 2017-12-28 |
TW201804173A (zh) | 2018-02-01 |
KR101694258B1 (ko) | 2017-01-09 |
CN107272106B (zh) | 2020-07-10 |
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