公开(公告)号：US20200161580A1

公开(公告)日：2020-05-21

申请号：US16687371

申请日：2019-11-18

Applicant: LG Display Co., Ltd.

Inventor： Ki-Wook SONG ,  Jung-Soo PARK ,  Min YUN ,  Yong-Hwan KIM ,  Tae-Woo JEON

IPC: H01L51/50

Abstract: Organic light emitting diode display devices are provided. In at least one embodiment, an organic light emitting diode display device includes a first electrode; a first stack on the first electrode and the first stack is configured to emit a blue colored light; a first charge generating layer on the first stack; a second stack on the first charge generating layer and the second stack is configured to emit a red colored light and a yellow-green colored light; and a second electrode on the second stack. The second stack includes: a red-yellow-green emitting material layer including a yellow-green host, a yellow-green dopant and a red dopant; and a yellow-green emitting material layer including the yellow-green host and the yellow-green dopant.