EP 1066619 A1 20010110 - BACKLIGHT CONTROL FOR A DISPLAY DEVICE
Title (en)
BACKLIGHT CONTROL FOR A DISPLAY DEVICE
Title (de)
RÜCKBELEUCHTUNG FÜR EIN ANZEIGEGERÄT
Title (fr)
COMMANDE DE RETROECLAIRAGE POUR DISPOSITIF D'AFFICHAGE
Publication
Application
Priority
- GB 9900934 W 19990325
- GB 9806593 A 19980327
Abstract (en)
[origin: GB2335776A] A display comprises a matrix of pixels 11 arranged in rows and columns, each pixel 10 being selectively controllable in terms of its light transmissive condition, and an illumination system, comprising an array 13 of elongate elements which provide light in response to electrical impulses, the elements 4, 5, 6 being arranged side by side to face the matrix. Adjacent elements provide light having a different one of a plurality of colours. The matrix is addressed using a row by row addressing sequence. During part of this sequence, a row of pixels is illuminated with light of a first colour from a first element, whilst a remote row of pixels is illuminated with light of a different colour from a further element. This enables more efficient illumination of the matrix than with conventional colour sequential displays in which all rows are simultaneously illuminated with the same colour.
IPC 1-7
IPC 8 full level
G02F 1/137 (2006.01); G02F 1/1334 (2006.01); G09G 3/20 (2006.01); G09G 3/34 (2006.01); G09G 3/36 (2006.01); G02F 1/13357 (2006.01)
CPC (source: EP KR)
G09G 3/34 (2013.01 - KR); G09G 3/342 (2013.01 - EP); G09G 3/3607 (2013.01 - EP); G02F 1/133622 (2021.01 - EP); G09G 3/2022 (2013.01 - EP); G09G 3/3629 (2013.01 - EP); G09G 2310/0235 (2013.01 - EP); G09G 2310/024 (2013.01 - EP); G09G 2310/061 (2013.01 - EP)
Citation (search report)
See references of WO 9950817A1
Designated contracting state (EPC)
BE CH DE FI FR GB LI NL SE
DOCDB simple family (publication)
GB 2335776 A 19990929; GB 9806593 D0 19980527; EP 1066619 A1 20010110; JP 2002510073 A 20020402; KR 20010034715 A 20010425; TW 452752 B 20010901; WO 9950817 A1 19991007
DOCDB simple family (application)
GB 9806593 A 19980327; EP 99913442 A 19990325; GB 9900934 W 19990325; JP 2000541656 A 19990325; KR 20007010735 A 20000927; TW 88105196 A 19990401