公开(公告)号：US20170084856A1

公开(公告)日：2017-03-23

申请号：US15221434

申请日：2016-07-27

Applicant: LG Display Co., Ltd.

Inventor： TaeIl KUM ,  Ki-Woog SONG ,  SoYeon AHN ,  Yongjoong CHOI ,  Mingyu LEE

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5265 ,  H01L51/5278 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An OLED apparatus that may include a reflection-anode, a transparent-cathode, and a plurality of stacks between the reflection-anode and the transparent-cathode, wherein, among the plurality of stacks, a thickness of the stack disposed relatively close to the transparent-cathode is larger than a thickness of the stack disposed relatively close to the reflection-anode so that it is possible to optimize a micro-cavity of light emitted from the plurality of stacks, thereby improving a light-emission efficiency and a color reproduction ratio and reducing a color change rate in accordance with a viewing angle.