Patent ID: 8828274
Filing Date: 2014-09-09
Classification: C08G,C08L,C09D,H01L,Y02E,Y02P

Abstract:
1. An OLED device comprising a hole injection layer disposed next to a hole transport layer, wherein the hole injection layer comprises: at least one arylamine polymer; and at least one dopant; wherein the arylamine polymer consists essentially of a backbone consisting essentially of at least one arylamine repeat moiety and at least one linking repeat moiety, wherein the arylamine repeat and linking repeat moieties are alternating moieties, and wherein the backbone is free of oxygen atoms, wherein the linking repeat moiety consists of a bivalent carbonyl group, a bivalent sulfone group, or a group >C═C(CN)R, wherein R is, H, CN, F, or alkyl, and does not comprise an aryl moiety, and wherein the backbone consists essentially of only one aryl group between the linking repeat moiety and the amine of the arylamine.