公开(公告)号：US20200006709A1

公开(公告)日：2020-01-02

申请号：US16455363

申请日：2019-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong-Min SIM ,  Ji-Hyang JANG ,  Jin-Tae KIM

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic light emitting diode display device includes a substrate, an overcoating layer on the substrate and including a plurality of convex portions and a plurality of concave portions, a first electrode on the overcoating layer, a light emitting layer on the first electrode and including a first emitting material layer, and a second electrode on the light emitting layer, wherein the first emitting material layer in the plurality of convex portions is separated from the second electrode by a first distance, and the first emitting material layer in the plurality of concave portions is separated from the second electrode by a second distance different from the first distance.