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1. WO2014168258 - METHOD FOR PRODUCING OPTICALLY ANISOTROPIC FILM

Publication Number WO/2014/168258
Publication Date 16.10.2014
International Application No. PCT/JP2014/060884
International Filing Date 10.04.2014
IPC
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
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
B32B 7/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7Layered 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
02Physical, chemical or physicochemical properties
C08J 7/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7Chemical treatment or coating of shaped articles made of macromolecular substances
04Coating
G02F 1/1335 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
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
G02F 1/13363 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
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
CPC
G02B 5/3016
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
3016involving passive liquid crystal elements
Applicants
  • 住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED [JP]/[JP]
Inventors
  • 小林 忠弘 KOBAYASHI, Tadahiro
Agents
  • 中山 亨 NAKAYAMA, Tohru
Priority Data
2013-08269611.04.2013JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING OPTICALLY ANISOTROPIC FILM
(FR) PROCÉDÉ DE PRODUCTION D'UN FILM OPTIQUEMENT ANISOTROPE
(JA) 光学異方性フィルムの製造方法
Abstract
(EN)
This method for producing an optically anisotropic film contains the following steps (1) and (2): (1) a step for applying a composition for forming an optically anisotropic layer and containing a polymerizable liquid crystal compound and a photoinitiator to the surface of an alignment film; and (2) a step for radiating light at the applied composition for forming an optically anisotropic layer while maintaining the composition for forming an optically anisotropic layer at no greater than the liquid crystal-liquid phase transition temperature of the polymerizable liquid crystal compound and in an atmosphere having an oxygen concentration of no greater than 0.5%.
(FR)
L'invention concerne un procédé de production d'un film optiquement anisotrope contenant les étapes (1) et (2) suivantes : (1) une étape d'application, sur la surface d'un film d'alignement, d'une composition pour former une couche optiquement anisotrope et contenant un composé de cristaux liquides polymérisable et un photo-initiateur ; et (2) une étape d'irradiation à la lumière de la composition appliquée pour former une couche optiquement anisotrope tout en maintenant la composition destinée à former une couche optiquement anisotrope à une température non supérieure à la température de transition de la phase liquide des cristaux liquides du composé de cristaux liquides polymérisable et dans une atmosphère ayant une concentration d'oxygène maximale de 0,5 %.
(JA)
以下の(1)及び(2)の工程を含む光学異方性フィルムの製造方法。 (1)配向膜の表面に、重合性液晶化合物及び光重合開始剤を含む光学異方層形成用組成物を塗布する工程 (2)塗布された光学異方層形成用組成物を、酸素濃度0.5%以下の雰囲気下で、重合性液晶化合物の液晶-液体相転移温度以下に保持しながら、該光学異方層形成用組成物に光を照射する工程
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