EP 1072032 A1 20010131 - IMPROVED PIXEL DRIVER FOR ACCURATE AND FINER GRAY SCALE RESOLUTION
Title (en)
IMPROVED PIXEL DRIVER FOR ACCURATE AND FINER GRAY SCALE RESOLUTION
Title (de)
BILDPUNKTSTEUERSCHALTUNG MIT VERBESSERTER GRAUSTUFENAUFLOSING
Title (fr)
CIRCUIT DE COMMANDE DE PIXELS AMELIORE DONNANT UNE RESOLUTION EN NIVEAUX DE GRIS PLUS NETTE ET PRECISE
Publication
Application
Priority
- US 9907207 W 19990401
- US 8059698 P 19980403
Abstract (en)
[origin: WO9952095A1] A pixel driver circuit for a flat panel display is disclosed. The circuit design employs at least one storage capacitor (110) for each pixel (100) and uses digital-to-analog converters (170, 180) to subdivide the digital pixel brightness input data and provide enhanced gray scale resolution. The subdivided data are converted to analog input data and are controlled using constant amplitude pulses. The relatively large voltage output steps of the present invention reduce the error in the pixel brightness from line voltage drops and coupled noise.
IPC 1-7
IPC 8 full level
G09G 3/20 (2006.01); G09G 3/32 (2006.01); G09G 3/22 (2006.01)
CPC (source: EP)
G09G 3/2011 (2013.01); G09G 3/2077 (2013.01); G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 3/22 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0259 (2013.01); G09G 2310/027 (2013.01); G09G 2310/066 (2013.01); G09G 2320/02 (2013.01)
Citation (search report)
See references of WO 9952095A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
US 9907207 W 19990401; EP 99914323 A 19990401