Patent ID: 8268456
Filing Date: 2012-09-18
Classification: C09K,H01L,H05B

Abstract:
1. An organic light-emitting device which contains one or more organic layers sandwiched between an anode and a cathode, wherein at least one of the organic layers is a light-emitting layer comprising a polymer compound (I), the polymer compound (I) comprising structural units derived from a hole transport and phosphorescent polymerizable compound (a1) and structural units derived from an electron transport polymerizable compound (b), the polymerizable compound (a1) being selected from the group consisting of the following formulae (E1-1) to (E1-9) and (E1-13) to (E1-32), and wherein the light-emitting layer includes the polymerizable compound (a1) as the only hole transport compound and the light-emitting layer further comprises a phosphorescent compound (d) which emits light at lower energy than the polymerizable compound (a1): wherein at least one of the hydrogen atoms in the formula (E1-1) is replaced by a substituent selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an amino group optionally substituted with an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and a silyl group, and one of the hydrogen atoms is replaced by a polymerizable substituent represented by general formula (H1), wherein R 25 represents a hydrogen atom or a linear alkyl group having 1 to 5 carbon atoms; and these substitutions apply to the hydrogen atoms in the formulae (E1-2) to (E1-9) and (E1-13) to (E1-32).