JP6736381B2 - 光学積層体、偏光板及び表示装置 - Google Patents
光学積層体、偏光板及び表示装置 Download PDFInfo
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- JP6736381B2 JP6736381B2 JP2016126637A JP2016126637A JP6736381B2 JP 6736381 B2 JP6736381 B2 JP 6736381B2 JP 2016126637 A JP2016126637 A JP 2016126637A JP 2016126637 A JP2016126637 A JP 2016126637A JP 6736381 B2 JP6736381 B2 JP 6736381B2
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- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- QCTJRYGLPAFRMS-UHFFFAOYSA-N prop-2-enoic acid;1,3,5-triazine-2,4,6-triamine Chemical compound OC(=O)C=C.NC1=NC(N)=NC(N)=N1 QCTJRYGLPAFRMS-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229910000275 saponite Inorganic materials 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229920003066 styrene-(meth)acrylic acid ester copolymer Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 229920006305 unsaturated polyester Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/023—Optical properties
-
- 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
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polarising Elements (AREA)
- Materials Engineering (AREA)
- Liquid Crystal (AREA)
- Surface Treatment Of Optical Elements (AREA)
Description
以下に示す材料を表1に記載の割合で配合した光学機能層形成用塗工液を調整し、調整した塗液を、厚さ40μmのトリアセチルセルロースフィルム(透光性基体)に塗布した。塗膜を乾燥(溶媒を揮発)させた後、塗膜に紫外線を照射して光硬化させることによって、実施例及び比較例に係る光学積層体を得た。尚、表1における「−」は、該当する材料を配合していないことを表す。
・基材樹脂:UV/EB硬化性樹脂 ライトアクリレートPE−3A(ペンタエリスリトールトリアクリレート、共栄社化学株式会社製)、屈折率1.52
・樹脂粒子:スチレン−メタクリル酸メチル共重合体粒子、屈折率1.515、平均粒径2.0μmまたは3.5μm
・無機微粒子1:合成スメクタイト
・無機微粒子2:アルミナナノ粒子、平均粒径40nm
・光重合開始剤:イルガキュア184(BASFジャパン製)
・溶剤:トルエン及びイソプロピルアルコールを16:37の割合で混合した混合溶剤
透過像鮮明度は、JIS K7105に従い、写像性測定器(ICM−1T、スガ試験器株式会社製)を用いて、光学くし幅0.5mmで測定した。
光学機能層の最表面の凹凸形状を、非接触表面・層断面形状計測システム(測定装置:バートスキャンR3300FL−Lite−AC、解析ソフトウェア:VertScan4、株式会社菱化システム製)を用いて光干渉方式により測定し、測定データを装置の解析ソフトウェアで解析した。平均傾斜角θaは、解析ソフトウェアの傾斜角解析機能を用いて、測定領域全体のデータに基づいて算出した。また、凸部の平均面積及び算術平均高さSaは、解析ソフトウェアの粒子解析機能を用いて算出した。
実施例及び比較例の光学積層体を透明な粘着層を介して黒色アクリル板(スミペックス960 住友化学株式会社製)に貼り合せたものを用意した。黒アクリル板に蛍光灯の光を映し込み、黒アクリル板の中心から垂直に50cm離れた位置から光学積層体表面を観察し、平滑感及び黒みを官能評価により5段階で評価した。20人の試験者の評価点を平均し、平均値を0.5刻みで丸めた値を評価スコアとした。また、評価スコアが4以上であれば、平滑感または黒みが良好であると判定した。
<平滑感の評価基準>
5:ザラツキ感がなく、滑らかな質感
4:ザラツキ感が少なく、やや滑らかな質感
3:ザラツキ感があり、滑らかさのない質感
2:ザラツキ感がやや強い
1:ザラツキ感が強い
<黒みの評価基準>
5:光学積層体表面での乱反射が殆どなく、潤いのある深い色味
4:光学積層体表面での乱反射が少なく、潤いのある色味
3:光学積層体表面での乱反射がややあり、やや白未がかった色味
2:白みがやや強い
1:白みが強い
2 光学機能層
3、5、6、8 透明基材
4、7 偏光層
11、12 偏光板
13 液晶セル
14 バックライトユニット
100 光学積層体
110 偏光板
120 表示装置
Claims (6)
- 透光性基体上に光学機能層が少なくとも1層以上積層されてなる光学積層体であって、
前記光学機能層の少なくとも一方の面に凹凸形状が形成されており、
0.5mm幅の光学くしを用いた透過像鮮明度が70〜95%であり、
光干渉方式により測定した、前記光学機能層の最表面の凸部の平均面積及び算術平均高さSaの積が4.7〜44.0μm3であり、
平均傾斜角θaが0.124〜0.349°であることを特徴とする、光学積層体。 - 前記光学機能層がランダム凝集構造を形成していることを特徴とする、請求項1に記載の光学積層体。
- 前記光学機能層が放射線硬化型樹脂組成物の硬化膜からなる1層以上の層からなることを特徴とする、請求項1または2に記載の光学積層体。
- 屈折率調整層、帯電防止層、防汚層のうちの少なくとも1層を更に備える、請求項1〜3のいずれかに記載の光学積層体。
- 請求項1〜4のいずれかに記載の光学積層体を構成する前記透光性基体上に、偏光基体が積層されてなることを特徴とする、偏光板。
- 請求項1〜4のいずれかに記載の光学積層体を備えることを特徴とする、表示装置。
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TW106121212A TWI638210B (zh) | 2016-06-27 | 2017-06-26 | Optical laminate, polarizing plate and display device |
CN201780036195.7A CN109313289B (zh) | 2016-06-27 | 2017-06-27 | 光学层叠体、偏光板及显示装置 |
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