EP 1743313 A4 20070530 - LOW POWER CIRCUITS FOR ACTIVE MATRIX EMISSIVE DISPLAYS AND METHODS OF OPERATING THE SAME
Title (en)
LOW POWER CIRCUITS FOR ACTIVE MATRIX EMISSIVE DISPLAYS AND METHODS OF OPERATING THE SAME
Title (de)
LOW-POWER-SCHALTUNGEN FÜR AKTIVMATRIX-EMISSIONS-DISPLAYS UND VERFAHREN ZU IHREM BETRIEB
Title (fr)
CIRCUITS A FAIBLE PUISSANCE POUR DES AFFICHAGES EMISSIFS A MATRICE ACTIVE ET PROCEDES DE FONCTIONNEMENT ASSOCIES
Publication
Application
Priority
- US 2005011994 W 20050406
- US 56147404 P 20040412
- US 84119804 A 20040506
- US 87234404 A 20040617
Abstract (en)
[origin: WO2005101267A2] The embodiments of the present invention provide a flat panel display having a plurality of pixels, each comprising a light-emitting device configured to emit light in accordance with a current flowing through the light-emitting device, a transistor coupled to the light-emitting device and configured to provide the current through the light-emitting device, the current increasing with a ramp voltage applied to a control terminal of the transistor, and a switching device configured to switch off in response to the luminance of the light-emitting device having reached a specified level, thereby disconnecting the ramp voltage from the transistor and locking the brightness at the specified level.. The switching device is further configured to stay off thereby allowing the luminance of the light-emitting device to be kept at the specified level until the pixel is rewritten in a different frame.
IPC 8 full level
G09G 3/10 (2006.01); G09G 3/32 (2006.01); G09G 3/36 (2006.01); G09G 5/00 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP KR)
G09G 3/3233 (2013.01 - EP KR); G09G 3/3291 (2013.01 - EP KR); G09G 2300/0809 (2013.01 - EP); G09G 2300/0819 (2013.01 - EP KR); G09G 2300/0842 (2013.01 - EP KR); G09G 2310/0259 (2013.01 - EP KR); G09G 2310/027 (2013.01 - EP KR); G09G 2310/066 (2013.01 - EP KR); G09G 2320/0285 (2013.01 - EP KR); G09G 2320/0295 (2013.01 - EP KR); G09G 2320/043 (2013.01 - EP KR); G09G 2330/021 (2013.01 - EP KR); G09G 2360/147 (2013.01 - EP); G09G 2360/148 (2013.01 - EP KR)
Citation (search report)
- [PX] WO 2004114264 A2 20041229 - NUELIGHT CORP [US], et al
- [A] US 6404137 B1 20020611 - SHODO KENZO [JP]
- See references of WO 2005101267A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005101267 A2 20051027; WO 2005101267 A3 20051215; AU 2005234023 A1 20051027; EP 1743313 A2 20070117; EP 1743313 A4 20070530; JP 2007534015 A 20071122; KR 20070004970 A 20070109
DOCDB simple family (application)
US 2005011994 W 20050406; AU 2005234023 A 20050406; EP 05734209 A 20050406; JP 2007508403 A 20050406; KR 20067023781 A 20061113