公开(公告)号：US20240260430A1

公开(公告)日：2024-08-01

申请号：US18540372

申请日：2023-12-14

Applicant: LG Display Co., Ltd.

Inventor： KwangYong CHOI ,  EunJi PARK ,  ByeongUk GANG

IPC: H10K59/80 ,  H10K59/122

CPC classification number: H10K59/8792 ,  H10K59/122 ,  H10K59/351

Abstract: A display device capable of enhancing the negative bias temperature illumination stress (NBTiS) characteristics and the reliability of a thin film transistor, can include a substrate including having an emission area and a non-emission area, a thin film transistor disposed on the substrate, a passivation layer covering an upper portion of the thin film transistor, an overcoat layer disposed on the passivation layer and having a slit or through hole recessed toward the passivation layer, and a black bank layer disposed on the overcoat layer and formed to have a shape corresponding to the slit or through hole to form a protrusion positioned in the slit or through hole.