EP 2342946 A1 20110713 - CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING AN OLED
Title (en)
CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING AN OLED
Title (de)
SCHALTUNGSANORDNUNG UND VERFAHREN ZUM BETREIBEN EINER OLED
Title (fr)
CIRCUIT ET PROCÉDÉ POUR FAIRE FONCTIONNER UNE OLED
Publication
Application
Priority
EP 2008064927 W 20081104
Abstract (en)
[origin: WO2010051832A1] The present invention relates to a circuit arrangement for operating an OLED, comprising a power supply, which is coupled to the OLED in order to supply the latter with power, wherein the circuit arrangement furthermore comprises an OLED voltage measuring device, which is coupled to the OLED and is designed to provide at its output a signal, which correlates with the voltage declining over the OLED, an evaluation device (10), which is coupled to the output of the OLED voltage measuring device and is designed to provide at its output a first signal, if the voltage, declining over the OLED, lies above a specifiable threshold value, and a second signal, if the voltage, declining over the OLED, lies below the specifiable threshold value, an electronic switch (T4) with a reference electrode, a working electrode and a control electrode, wherein the control electrode is coupled to the output of the evaluation device (10), and at least one ohmic resistance (R7; R8; R9; R10), wherein the series connection of the at least one ohmic resistance (R7; R8; R9; R10) and the working electrode - reference electrode segments of the electronic switch (T4) is connected parallel to the OLED. The invention, moreover, relates to a corresponding method for operating an OLED.
IPC 8 full level
H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/60 (2020.01 - EP US); Y02B 20/30 (2013.01 - EP)
Citation (search report)
See references of WO 2010051832A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2010051832 A1 20100514; CN 102204406 A 20110928; EP 2342946 A1 20110713; US 2011204792 A1 20110825
DOCDB simple family (application)
EP 2008064927 W 20081104; CN 200880131829 A 20081104; EP 08875272 A 20081104; US 200813127482 A 20081104