公开(公告)号：US20230217822A1

公开(公告)日：2023-07-06

申请号：US18088430

申请日：2022-12-23

Applicant: LG Display Co., Ltd.

Inventor： Wook Song ,  Ji Cheol Shin ,  Sae Mi Park ,  Myeong Seon Cho ,  Hui Kun Yun ,  Jung Keun Kim ,  Byung Soo Kim

IPC: H10K85/60 ,  H10K50/19 ,  H10K85/30

CPC classification number: H10K85/6572 ,  H10K50/19 ,  H10K85/631 ,  H10K85/636 ,  H10K85/626 ,  H10K85/658 ,  H10K85/342 ,  H10K59/12

Abstract: Disclosed is a light emitting device that is capable of reducing lateral leakage current and a driving voltage by improving a structure for connecting a plurality of stacks to one another in a structure using the plurality of stacks, and a light emitting display device including the same. The light emitting device includes a first electrode and a second electrode facing each other, a plurality of stacks provided between the first electrode and the second electrode, and a charge generation layer including an electron generation layer and a hole generation layer stacked between the stacks, wherein the electron generation layer contains a first host of Formula 1 and a metal dopant, and the hole generation layer contains a second host and an organic dopant.