EP 1451881 A1 20040901 - ORGANIC LIGHT EMITTING DIODE DEVICES USING THERMOSTABLE HOLE-INJECTION AND HOLE-TRANSPORT COMPOUNDS
Title (en)
ORGANIC LIGHT EMITTING DIODE DEVICES USING THERMOSTABLE HOLE-INJECTION AND HOLE-TRANSPORT COMPOUNDS
Title (de)
ORGANISCHE LEUCHTDIODEN MIT THERMISCH STABILEN LOCH-INJEKTIONS- UND LOCH-LEITER-METERIALIEN
Title (fr)
DISPOSITIFS OLED A COMPOSES D'INJECTION ET DE TRANSPORT DE TROU THERMOSTABLES
Publication
Application
Priority
US 0120583 W 20010628
Abstract (en)
[origin: WO03003482A1] The present invention relates to multi-layered organic light emitting diode devices having hole-injection and/or hole-transport layers comprising aryl amine compounds with relatively high glass transition temperatures (i.e., thermostable aryl amine compounds). Such multi-layered OLED devices allow for a staircase change in the energy difference of holes and electrons as they migrate form the electrodes toward the emitter layer, resulting in a lower operating voltage and a high quantum yield of luminescence for a give current density. The present invention also relates to microdisplay devices comprising multi-layered organic light emitting diode devices having hole-injection and/or hole-transport layers comprising thermostable aryl amine compounds.
IPC 1-7
IPC 8 full level
C07C 211/56 (2006.01); C07C 211/58 (2006.01); C07C 211/59 (2006.01); C07D 209/86 (2006.01); H01L 51/30 (2006.01); H01L 51/50 (2006.01)
CPC (source: EP)
C07C 211/56 (2013.01); C07C 211/58 (2013.01); C07C 211/59 (2013.01); C07D 209/86 (2013.01); H10K 85/631 (2023.02); H10K 50/11 (2023.02); H10K 85/324 (2023.02); H10K 85/633 (2023.02); H10K 85/649 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 2102/103 (2023.02)
Citation (search report)
See references of WO 03003482A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DOCDB simple family (application)
US 0120583 W 20010628; EP 01950594 A 20010628