Organic EL device

Details Organic EL device Organic EL device

2006-08-29

2006-08-29

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000

Reexamination Certificate

active

07097918

ABSTRACT:
An organic EL device comprising organic compound layers, at least one of which has a skeleton represented by formula (I):where L0is any one of o-, p-, and m-phenylene groups which have two, three or four rings and which may have a substituent with the proviso that when L0is a phenylene group having four rings, the phenylene group may have an unsubstituted or substituted aminophenyl group somewhere therein, R01, R02, R03and R04are each any one of the following groups:where R11, R12, R13, R14, R15, R16and R17are each a substituted or unsubstituted aryl group, and r1, r2, r3and r4are each an integer of 0 to 5 with the proviso that r1+r2+r3+r41, is less susceptible to physical changes, photochemical changes and electrochemical changes, and can emit light having various colors with high reliability and high light emission efficiency.

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