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Title:
GUEST/HOST TYPE LIQUID CRYSTAL COMPOSITION
Document Type and Number:
Japanese Patent JP58057488
Kind Code:
A
Abstract:

PURPOSE: To obtain a guest/host type liquid crystal composition with excellent display contrast and stability, by dissolving as a guest material a multi-color dyestuff having a trans-4-substd. cyclohexyl group in a matrix consisting of a host liquid crystal.

CONSTITUTION: A guest/host type liquid crystal composition prepd. by dissolving a guest material consisting of a multi-color dyestuff in a matrix consisting of a host liquid crystal. In the composition, said multi-color dyestuff includes one having a trans-4-substd. cyclohexyl group such as an anthraquione or azo dye, which is typically of the formula IV[wherein W is a trans-4-substd. cyclohexyl group; D is a group of an org. dyestuff having no ionic groups, typically a group of formula II (wherein K is a group of formula III or an N-contg. heterocyclic ring; Y1 is H, alkyl, alkoxy, etc.; R2W3 are each, e.g., H; Z1W2 are each, e.g., a naphthalene ring; n is 1 or 2); B is, e.g., a group of the formula III].


Inventors:
Kaneko, Masaharu
Ozawa, Tetsuo
Yoneyama, Tomio
Imazeki, Shuji
Kobi, Akio
Sato, Mikio
Application Number:
JP1981000156192
Publication Date:
April 05, 1983
Filing Date:
October 02, 1981
Export Citation:
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Assignee:
MITSUBISHI CHEM IND LTD
HITACHI LTD
International Classes:
C09B1/08; C09B1/20; C09B1/503; C09B1/51; C09B1/54; C09B1/60; C09B5/24; C09B23/10; C09B25/00; C09B29/01; C09B29/08; C09B29/36; C09B31/02; C09K19/60; G02F1/137; G09F9/00; G09F9/35; (IPC1-7): C09K3/34; G02F1/137; G09F9/00; G09F9/35



 
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