Cellulose ester film, polarizing plate for in-plane-switching mode display and in-plane-switching mode display using the cellulose ester film

A cellulose ester film containing a polyester represented by the following general formula (1) or (2), characterized in that the in-plane retardation (Ro) and the thickness-direction retardation (Rt) as measured at ordinary temperature and ordinary humidity (23 DEG C, 55% RH) are 0 to 5 nm and -20 t...

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Bibliographic Details
Main Authors TASAKA KOJI, OKA SHIGEKI, TAKEBE TAKASHI, SHIMIZU KUNIO
Format Patent
LanguageChinese
English
Published 21.11.2012
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
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Summary:A cellulose ester film containing a polyester represented by the following general formula (1) or (2), characterized in that the in-plane retardation (Ro) and the thickness-direction retardation (Rt) as measured at ordinary temperature and ordinary humidity (23 DEG C, 55% RH) are 0 to 5 nm and -20 to 10 nm, respectively. General formula (1) B1-(G-A-)mG-B1 (In the formula, B1 represents a mono carboxylic acid; G represents a dihydric alcohol; A represents a dibasic acid; none of B1, G, and A contains an aromatic ring; m indicates the number of repetitions; and B1's and G's each may be the same or different.) General formula (2) B2-(A-G-)nA-B2 (In the formula, B2 represents a monohydric alcohol; G represents a dihydric alcohol; A represents a dibasic acid; none of B2, G, and A contains an aromatic ring; n indicates the number of repetitions; and B2's and G's each may be the same or different.
Bibliography:Application Number: CN200680023091