Patent ID: 7763882
Filing Date: 2010-07-27
Classification: C07D,C09K,H01L,H05B

Abstract:
1. An organic light-emitting device comprising a substrate, a first electrode, at least two organic layers and a second electrode in the sequentially laminated form, in which the organic layers include a light-emitting layer, and one of the organic layers, which is in contact with the second electrode, is a buffer layer comprising a compound represented by the following formula 1: wherein R 1 to R 6 are each independently selected from the group consisting of hydrogen, halogen atoms, nitrile (—CN), nitro (—NO 2 ), sulfonyl (—SO 2 R), sulfoxide (—SOR), sulfonamide (—SO 2 NR), sulfonate (—SO 3 R), trifluoromethyl (—CF 3 ), ester (—COOR), amide (—CONHR or —CONRR′), substituted or unsubstituted straight or branched chain C 1 -C 12 alkoxy, substituted or unsubstituted straight or branched C 1 -C 12 alkyl, substituted or unsubstituted aromatic or non-aromatic heterocyclic rings, substituted or unsubstituted aryl, substituted or unsubstituted mono- or di-arylamine, and substituted or unsubstituted aralkylamine, and R and R′ are each independently selected from the group consisting of substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted aryl, and substituted or unsubstituted 5-7 membered heterocyclic rings.