公开(公告)号：US08847215B2

公开(公告)日：2014-09-30

申请号：US13723920

申请日：2012-12-21

Applicant: LG Display Co., Ltd.

Inventor： Jin-Ho Park ,  Kwang-Hyun Kim ,  Min-Na Kim

IPC: H01L51/50

CPC classification number: H01L51/56 ,  H01L27/153 ,  H01L27/3211 ,  H01L51/504 ,  H01L51/5064 ,  H01L51/5265 ,  H01L2251/558

Abstract: An organic light-emitting diode includes an anode on a substrate; a first hole transporting layer on the anode; a second hole transporting layer on the first hole transporting layer and corresponding to the red and green pixel areas; a first emitting material pattern of a first thickness on the second hole transporting layer and corresponding to the red pixel area; a second emitting material pattern of a second thickness on the second hole transporting layer and corresponding to the green pixel area; a third emitting material pattern of a third thickness on the first hole transporting layer and corresponding to the blue pixel area; an electron transporting layer on the first, second and third emitting material patterns; and a cathode on the electron transporting layer, wherein the second thickness is less than the first thickness and greater than the third thickness.

Abstract translation: 有机发光二极管包括在基板上的阳极; 阳极上的第一空穴传输层; 在第一空穴传输层上并对应于红色和绿色像素区域的第二空穴传输层; 在第二空穴传输层上并对应于红色像素区域的第一厚度的第一发光材料图案; 第二厚度的第二发光材料图案在第二空穴传输层上并对应于绿色像素区域; 第三厚度的第三发光材料图案在第一空穴传输层上，并对应于蓝色像素区域; 在第一，第二和第三发光材料图案上的电子传输层; 和电子传输层上的阴极，其中第二厚度小于第一厚度并且大于第三厚度。