EP 0778558 A2 19970611 - A column driver for LCD using frame duty cycle control
Title (en)
A column driver for LCD using frame duty cycle control
Title (de)
Spaltensteuerschaltung für eine Flüssigkristallanzeige mit Raster-Tastverhältnis-Steuerung
Title (fr)
Circuit de commande de colonnes d'un dispositif d'affichage à cristaux liquides avec commande du rapport cyclique de trame
Publication
Application
Priority
GB 9524193 A 19951127
Abstract (en)
A driver for a liquid crystal display has fixed preset drive voltage levels and means for varying an ON:OFF ratio over a number of cycles, whereby effectively to present variable driving voltage levels for driving a liquid crystal display. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
G09G 3/3611 (2013.01 - EP); G09G 3/3648 (2013.01 - KR); G09G 3/2018 (2013.01 - EP); G09G 2230/00 (2013.01 - KR)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
GB 2307584 A 19970528; GB 9624443 D0 19970115; EP 0778558 A2 19970611; EP 0778558 A3 19980204; GB 9524193 D0 19960131; KR 970029309 A 19970626; SG 54392 A1 19981116; TW 337579 B 19980801
DOCDB simple family (application)
GB 9624443 A 19961125; EP 96308500 A 19961125; GB 9524193 A 19951127; KR 19960058209 A 19961127; SG 1996011385 A 19961127; TW 85114682 A 19961128