EP 0541396 B1 19980121 - Method for driving liquid crystal panel
Title (en)
Method for driving liquid crystal panel
Title (de)
Steuerverfahren für eine Flüssigkristallanzeigetafel
Title (fr)
Méthode de commande d'un panneau d'affichage à cristaux liquides
Publication
Application
Priority
- JP 23212692 A 19920831
- JP 29317991 A 19911108
Abstract (en)
[origin: EP0541396A2] A method for driving a liquid crystal panel including the steps of providing a ferroelectric liquid crystal of which dielectric anisotropy is negative, between a plurality of scanning and signal electrodes which intersect each other, applying positive and negative voltages to a pixel formed by the scanning electrode with the non-selection voltage and the signal electrode with the rewriting voltage and a pixel formed by the scanning electrode with the non-selection voltage and the signal electrode with the holding voltage so that the changes of the quantities of transmitted light of the two pixels are made almost equal to each other, and applying a positive or negative voltage within the range where an effect of the negative dielectric anisotropy acting on a ferroelectric liquid crystal molecule is increased, and a negative or positive voltage within the range where the effect on the molecule is decreased to a pixel formed by the scanning electrode with the selection voltage and the signal electrode with the holding voltage so that the change of a quantity of transmitted light of the pixel is made almost equal to or smaller than that of the two pixels. <IMAGE>
IPC 1-7
IPC 8 full level
G02F 1/133 (2006.01); G09G 3/36 (2006.01)
CPC (source: EP KR)
G09G 3/36 (2013.01 - KR); G09G 3/3629 (2013.01 - EP); G09G 2310/04 (2013.01 - EP); G09G 2310/06 (2013.01 - EP); G09G 2320/0209 (2013.01 - EP)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0541396 A2 19930512; EP 0541396 A3 19940921; EP 0541396 B1 19980121; DE 69224147 D1 19980226; DE 69224147 T2 19980806; JP 2996564 B2 20000111; JP H05210365 A 19930820; KR 930010835 A 19930623; KR 970001848 B1 19970217; TW 245780 B 19950421
DOCDB simple family (application)
EP 92310203 A 19921106; DE 69224147 T 19921106; JP 23212692 A 19920831; KR 920020968 A 19921109; TW 81108675 A 19921030