LIQUID CRYSTAL COMPOUND COMPOSITION AND RETARDATION FILM USING SAME

Title:

LIQUID CRYSTAL COMPOUND COMPOSITION AND RETARDATION FILM USING SAME

Document Type and Number:

WIPO Patent Application WO/2004/041925

Kind Code:

A1

Abstract:

A liquid crystal compound composition containing one or more cellulose derivatives and one or more liquid crystal compounds (preferably low-molecular liquid crystal compound) orientable in a specific direction different from the direction in which the cellulose derivatives are oriented. The weight mixing ratio between them is preferably 1:9 to 9:1. A retardation film produced by using the composition, a circular or elliptic polarizing film using the retardation film, and an image display provided with the circular or elliptic polarizing film are also disclosed. The liquid crystal compound composition can be readily oriented in a specific direction on a substrate subjected to rubbing, and the retardation film having a wavelength dispersion characteristic capable of imparting a phase difference to similar degrees to wavelengths in a wide visible range by fixing the orientation of the liquid crystal compound composition.

Inventors:

FUJISAWA HIDEYOSHI (JP)
TANAKA KOUICHI (JP)

Application Number:

PCT/JP2003/014157

Publication Date:

May 21, 2004

Filing Date:

November 06, 2003

Export Citation:

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Assignee:

NIPPON KAYAKU KK (JP)
POLATECHNO CO LTD (JP)
FUJISAWA HIDEYOSHI (JP)
TANAKA KOUICHI (JP)

International Classes:

C08F251/02; C09K19/04; C09K19/12; C09K19/20; C09K19/38; C09K19/54; G02B5/30; G02F1/1335; G02F1/13363; (IPC1-7): C08L1/00; G02F1/3363; G02B5/30

Domestic Patent References:

WO2001088574A1	2001-11-22
WO2002046808A1	2002-06-13
WO2002073252A1	2002-09-19

Foreign References:

JP2002156527A	2002-05-31
JPS6160734A	1986-03-28
JP2002214410A	2002-07-31
JPH11172118A	1999-06-29
EP0799877A1	1997-10-08

Other References: