Global Patent Index - EP 0200427 B1

EP 0200427 B1 19911127 - CHIRAL SMECTIC LIQUID CRYSTAL ELECTRO-OPTICAL DEVICE AND METHOD OF DRIVING SAME

Title (en)

CHIRAL SMECTIC LIQUID CRYSTAL ELECTRO-OPTICAL DEVICE AND METHOD OF DRIVING SAME

Publication

EP 0200427 B1 19911127 (EN)

Application

EP 86302887 A 19860417

Priority

JP 8365185 A 19850419

Abstract (en)

[origin: EP0200427A1] A chiral smectic liquid crystal electro-optical devices uses switching between two states of chiral smectic liquid crystal molecules, the device being driven by utilising the difference ( DELTA tau ) between the response time from one of said two states to the other state and the response time from the other state to the one state.

IPC 1-7

G02F 1/133; G02F 1/137; G09G 3/36

IPC 8 full level

G02F 1/133 (2006.01); G09F 9/35 (2006.01); G09G 3/18 (2006.01); G09G 3/36 (2006.01); G09G 3/20 (2006.01)

CPC (source: EP)

G09G 3/3629 (2013.01); G09G 3/2014 (2013.01); G09G 2310/06 (2013.01); G09G 2310/061 (2013.01)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0200427 A1 19861105; EP 0200427 B1 19911127; DE 3682610 D1 19920109; JP H0431372 B2 19920526; JP S61241731 A 19861028

DOCDB simple family (application)

EP 86302887 A 19860417; DE 3682610 T 19860417; JP 8365185 A 19850419