EP 1196955 A1 20020417 - LONG-LIFETIME POLYMER LIGHT-EMITTING DEVICES WITH IMPROVED LUMINOUS EFFICIENCY AND RADIANCE
Title (en)
LONG-LIFETIME POLYMER LIGHT-EMITTING DEVICES WITH IMPROVED LUMINOUS EFFICIENCY AND RADIANCE
Title (de)
LANGLEBIGES LICHTEMITTIERENDES POLYMER-BAUELEMENT MIT VERBESSERTEM LEUCHTWIRKUNGSGRAD UND LICHTAUSSTRAHLUNG
Title (fr)
DISPOSITIFS ELECTROLUMINESCENTS POLYMERES A LONGUE DUREE DE VIE PRESENTANT UN RENDEMENT LUMINEUX ET UNE LUMINANCE ENERGETIQUE AMELIORES
Publication
Application
Priority
- US 0019476 W 20000718
- US 14425199 P 19990719
Abstract (en)
[origin: WO0106576A1] The luminous efficiency and radiance of light emitting diodes (LEDs) fabricated from organic emissive materials can be increased by using a multilayer cathode including a low work function layer and a high work function high reflectivity layer, in combination with a high work function, high reflectivity anode material in the device.
IPC 1-7
IPC 8 full level
H01L 33/00 (2006.01); H01L 33/26 (2010.01); H01L 33/36 (2010.01); H01L 33/42 (2010.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H05B 33/24 (2006.01); H05B 33/26 (2006.01); H05B 33/28 (2006.01)
CPC (source: EP)
H10K 50/805 (2023.02); H10K 50/852 (2023.02)
Citation (search report)
See references of WO 0106576A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0106576 A1 20010125; CA 2377077 A1 20010125; CN 1182601 C 20041229; CN 1373908 A 20021009; EP 1196955 A1 20020417; JP 2003505823 A 20030212; MY 133491 A 20071130; TW 493289 B 20020701
DOCDB simple family (application)
US 0019476 W 20000718; CA 2377077 A 20000718; CN 00810523 A 20000718; EP 00947472 A 20000718; JP 2001510925 A 20000718; MY PI20003285 A 20000719; TW 89114453 A 20000719