EP 1879170 A1 20080116 - Current drive for light emitting diodes
Title (en)
Current drive for light emitting diodes
Title (de)
Stromsteuerung für lichtemittierende Dioden
Title (fr)
Commande courante de diodes électroluminescentes
Publication
Application
Priority
EP 06300785 A 20060710
Abstract (en)
The present invention relates to a current drive for light emitting diodes, in particular organic light emitting diodes. The current drive according to the present invention comprises a current source. The current source is adapted to provide a predetermined current. The current drive further comprises modulation means adapted to modulate the predetermined current in such a way that one or plural consecutive current pulses are output by the modulation means to the light emitting diode.
IPC 8 full level
G09G 3/32 (2006.01)
CPC (source: EP)
G09G 3/2014 (2013.01); G09G 3/325 (2013.01); G09G 2300/0809 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0259 (2013.01); G09G 2320/0233 (2013.01)
Citation (search report)
- [X] EP 1455335 A1 20040908 - SANYO ELECTRIC CO [JP]
- [A] US 2003142048 A1 20030731 - NISHITANI SHIGEYUKI [JP], et al
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 LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 06300785 A 20060710; EP 2007056733 W 20070704