摘要 |
An OLED device comprises a cathode, a light emitting layer and an anode, in that order, and (i) a first layer, located between the cathode and the light emitting layer, containing (a) more than 50 vol% of an organic salt or complex of an alkali or alkaline earth metal and (b) a carbocyclic fused ring aromatic compound, that is less than 15 nm thick; and (ii) a second layer, located between the first layer and the cathode, containing a codeposited phenanthroline derivative, metal oxinoid complex, and alkali or alkaline earth metal. The device provides excellent short-term operational stability. |
申请人 |
EASTMAN KODAK COMPANY;RICKS, MICHELE, LEE;HATWAR, TUKARAM, KISAN;BEGLEY, WILLIAM, JAMES;SPINDLER, JEFFREY, PAUL |
发明人 |
RICKS, MICHELE, LEE;HATWAR, TUKARAM, KISAN;BEGLEY, WILLIAM, JAMES;SPINDLER, JEFFREY, PAUL |