Patent ID: 7659543

Claim:
An organic light emitting display, comprising: a first electrode arranged on a substrate; an organic layer arranged on the first electrode and comprising at least a hole injection layer, a hole acceleration layer, a hole transport layer, and an emission layer; and a second electrode arranged on the organic layer, wherein a hole mobility of a material comprising the hole acceleration layer is higher than a hole mobility of a material comprising the hole injection layer, wherein the hole mobility of the material comprising the hole acceleration layer is higher than 5.1×10 −4 cm 2 /Vs, wherein the hole acceleration layer comprises one material selected from the group consisting of CuPc, TBAHA, TF-TCNQ, a-6T, and PEDOT, wherein the hole injection layer comprises one material selected from the group consisting of CuPc, TBAHA, TF-TCNQ, a-6T, TPD, TDATA, and PEDOT, and wherein the hole acceleration layer is arranged between the hole injection layer and the hole transport layer.