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1. WO2020110817 - METHOD FOR MANUFACTURING OPTICAL LAMINATE

Publication Number WO/2020/110817
Publication Date 04.06.2020
International Application No. PCT/JP2019/045166
International Filing Date 19.11.2019
IPC
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
B05D 1/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
36Successively applying liquids or other fluent materials, e.g. without intermediate treatment
B05D 1/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
36Successively applying liquids or other fluent materials, e.g. without intermediate treatment
38with intermediate treatment
B05D 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 3/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
06by exposure to radiation
G02F 1/13 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
CPC
B05D 1/36
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
36Successively applying liquids or other fluent materials, e.g. without intermediate treatment
B05D 1/38
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
36Successively applying liquids or other fluent materials, e.g. without intermediate treatment
38with intermediate treatment
B05D 3/00
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 3/06
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
06by exposure to radiation
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G02F 1/13
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
Applicants
  • 富士フイルム株式会社 FUJIFILM CORPORATION [JP]/[JP]
Inventors
  • 渥美 匡広 ATSUMI Kunihiro
  • 西川 秀幸 NISHIKAWA Hideyuki
  • 野副 寛 NOZOE Yutaka
  • 飯泉 隆史 IIZUMI Takashi
  • 渡邉 壮一郎 WATANABE Soichiro
Agents
  • 伊東 秀明 ITOH Hideaki
  • 三橋 史生 MITSUHASHI Fumio
Priority Data
2018-22228128.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR MANUFACTURING OPTICAL LAMINATE
(FR) PROCÉDÉ DE FABRICATION DE STRATIFIÉ OPTIQUE
(JA) 光学積層体の製造方法
Abstract
(EN)
The present invention addresses the problem of providing a method for manufacturing an optical laminate, wherein excellent coatability can be achieved, film thickness unevenness can be suppressed, excellent upper layer coatability on a formed layer can be achieved, and good liquid crystal alignment can be achieved. The method for manufacturing an optical laminate according to the present invention comprises: a first coating step for applying a binder composition, which contains a binder and a photo-alignment polymer having a photo-alignment group, onto a support to form a first coating film; a binder layer-forming step for forming a binder layer after the first coating step; a light irradiation step for irradiating the binder layer with polarized or non-polarized light to impart anchoring force to the binder layer; a second coating step for applying, directly onto the binder layer, a polymerizable liquid crystal composition for forming an optically anisotropic layer; and an optically anisotropic layer-forming step for forming an optically anisotropic layer after the second coating step, wherein the water contact angle θa of the surface of the first coating film and the water contact angle θb of the surface of the binder layer when the polymerizable liquid crystal composition is directly applied thereto satisfy expression (I).
(FR)
L'invention a pour objet de fournir un procédé de fabrication de stratifié optique excellent en termes de propriété d'application, permettant d'inhiber une irrégularité d'épaisseur de film, excellent en termes de propriété d'application de couche supérieure après formation en tant que couche, et permettant d'obtenir des propriétés d'alignement de cristaux liquide satisfaisantes. Le procédé de fabrication de stratifié optique de l'invention présente : une première étape d'application au cours de laquelle une composition de liant comprenant un liant et un polymère à photo-alignement ayant un groupe à photo-alignement est appliquée sur un support, et une première membrane de revêtement est ainsi formée ; une étape de formation de couche de liant au cours de laquelle une couche de liant est formée après la première étape d'application ; une étape de photo-irradiation au cours de laquelle une irradiation est effectuée par une lumière polarisée ou une lumière non-polarisée, et une couche de liant à laquelle est conférée une puissance de commande d'alignement est formée ; une seconde étape d'application au cours de laquelle une composition de cristaux liquides polymérisable formant une couche à anisotropie optique est appliquée directement sur la couche de liant ; et une étape de formation de couche à anisotropie optique au cours de laquelle une couche à anisotropie optique est formée après la seconde étape d'application. L'angle (θa) de contact avec l'eau de la surface de la première membrane de revêtement, et l'angle (θb) de contact avec l'eau de la surface de la couche de liant lorsque la composition de cristaux liquides polymérisable est appliquée directement, satisfont la formule (I).
(JA)
本発明は、塗布性に優れ、膜厚ムラを抑制することができ、層として形成された後において上層塗布性に優れ、液晶配向性も良好とすることができる光学積層体の製造方法を提供することを課題とする。本発明の光学積層体の製造方法は、支持体上に、バインダーと光配向性基を有する光配向性ポリマーを含有するバインダー組成物を塗布し、第1の塗膜を形成する第1塗布工程と、第1塗布工程の後に、バインダー層を形成するバインダー層形成工程と、偏光または無偏光を照射し、配向規制力が付与されたバインダー層を形成する光照射工程と、バインダー層上に、光学異方性層を形成する重合性液晶組成物を直接塗布する第2塗布工程と、第2塗布工程の後に、光学異方性層を形成する光学異方性層形成工程と、を有し、第1の塗膜の表面の水接触角θaと、重合性液晶組成物を直接塗布する際のバインダー層の表面の水接触角θbとが、式(I)を満たす、光学積層体の製造方法である。
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