公开(公告)号：US20240008310A1

公开(公告)日：2024-01-04

申请号：US18213527

申请日：2023-06-23

Applicant: LG Display Co., Ltd.

Inventor： Bokyoung Lee ,  Yongil Kim ,  Hyeona Kim

IPC: H10K59/121 ,  H10K59/80

CPC classification number: H10K59/1213 ,  H10K59/8792 ,  H10K59/1216

Abstract: Provided is an organic light emitting display device including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element and including a first oxide semiconductor layer and a first gate electrode on disposed the first oxide semiconductor layer, a first light blocking layer overlapping the first oxide semiconductor layer under the first oxide semiconductor layer, and at least one insulating layer disposed between the first light blocking layer and the first gate electrode and made of a hydrogen-free silicon nitride material. Accordingly, it is possible to increase an S-factor of the driving transistor using the oxide semiconductor layer and secure performance.