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Patent Searching and Data


Title:
LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JPH1017867
Kind Code:
A
Abstract:

To obtain an excellent color purity by dissolving a dichroic colorant represented by a specific formula in a fluorine-base liq. crystal material to form a yellow-, magenta-, or cyan-colored guest-host liq. crystal compsn.

A yellow-, magenta-, or cyan-colored heat-resistant guest-host liq. crystal compsn. is prepd. by dissolving about 0.5-5wt.% at least one dichroic colorant selected from among ones represented by formulas I to IV (wherein Y1 and Y2 are each a group represented by formula II; R1 is H, a 1-12C alkyl, etc.; R2 and R3 are each a 1-12C alkyl, a 1-12C alkoxy, etc.; X1 is O or S; and R4 is a 1-12C alkyl, a 2-12C alkoxyalkyl, etc.), about 0.5-5wt.% at least one dichroic colorant selected from among ones represented by formulas V to VIII (wherein X2 is H, a halogen, a 1-12C alkyl, a 1-12C alkoxy, etc.), or about 0.5-5wt.% at least one dichroic colorant selected from among ones represented by formula IX (wherein R11 and R12 are each H, a halogen, a 1-12C alkoxy, etc.) in a fluorine-base liq. crystal material. The compsn. is sandwiched between a pair of transparent electrodes to give a liq. crystal display element.


Inventors:
KANEKO MASAHARU
KADOWAKI MASAMI
Application Number:
JP17135796A
Publication Date:
January 20, 1998
Filing Date:
July 01, 1996
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP
International Classes:
G02F1/13; C09B1/503; C09B1/56; C09B3/14; C09B25/00; C09K19/60; (IPC1-7): C09K19/60; C09B1/503; C09B1/56; C09B3/14; C09B25/00; G02F1/13
Attorney, Agent or Firm:
Hasegawa Moji