EP 1638070 B1 20080820 - Method and circuit for compensation of aging effects in an organic light-emitting diode
Title (en)
Method and circuit for compensation of aging effects in an organic light-emitting diode
Title (de)
Verfahren und Schaltungsanordnung zur Alterungskompensation einer organischen Leuchtdiode
Title (fr)
Méthode et circuit pour la compensation d'effets de vieillissement dans une diode électroluminescente organique
Publication
Application
Priority
DE 102004045871 A 20040920
Abstract (en)
[origin: EP1638070A2] The method involves storing the desired current/voltage value pairs for the desired characteristic curve for the OLED. A driver transistor is brought from saturation to linear operation during a measuring cycle, and the current through the diode is measured. Drive parameters are generated for driving the diode based on a comparison of the actual with the desired values for the current/voltage pairs. An independent claim is included for circuit for carrying out the method.
IPC 8 full level
G09G 3/32 (2006.01)
CPC (source: EP US)
G09G 3/3233 (2013.01 - EP US); G09G 2300/0842 (2013.01 - EP US); G09G 2320/029 (2013.01 - EP US); G09G 2320/043 (2013.01 - EP US)
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
EP 1638070 A2 20060322; EP 1638070 A3 20061018; EP 1638070 B1 20080820; DE 102004045871 A1 20060406; DE 102004045871 B4 20061123; US 2006214888 A1 20060928; US 7656370 B2 20100202
DOCDB simple family (application)
EP 05020442 A 20050920; DE 102004045871 A 20040920; US 23132905 A 20050920