公开(公告)号：US11532687B2

公开(公告)日：2022-12-20

申请号：US16880792

申请日：2020-05-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sangwoo Sohn ,  Myounghwa Kim ,  TaeSang Kim ,  Hyungjun Kim ,  Yeon Keon Moon ,  Joon Seok Park ,  Sangwon Shin ,  Jun Hyung Lim ,  Hyelim Choi

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52 ,  H01L29/786

Abstract: A display panel includes a base layer, a first thin film transistor on the base layer, a second thin film transistor electrically coupled to the first thin film transistor, and a light emitting element electrically coupled to the second thin film transistor. The first thin film transistor includes a first semiconductor pattern on the base layer, a first barrier pattern on the first semiconductor pattern and including a gallium (Ga) oxide and a zinc (Zn) oxide, and a first control electrode on the first barrier pattern and overlapping the first semiconductor pattern. Accordingly, a signal transmission speed of the display panel may be improved, and electrical characteristics and reliability of the thin film transistor included in the display panel may be improved.