Patent ID: 8263237
Filing Date: 2012-09-11
Classification: H01L

Abstract:
1. A red phosphorescent composition, comprising: a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein each of R1 to R4 is selected from the group consisting of hydrogen atom (H), C1 to C6 alkyl and C1 to C6 alkoxy, and at least one of R1 to R4 is C1 to C6 alkyl, and wherein each of R5 to R7 is selected from the group consisting of hydrogen, C1 to C6 alkyl and pyrrole, and at least one of R5 to R7 is pyrrole, and wherein each of X and Y is selected from the group consisting of H, non-substituted C1 to C6 alkyl and C1 to C6 alkyl substituted by fluorine, wherein nitrogen of pyrrole in at least one of R5 to R7 is combined with quinoline in the Formula 1.