公开(公告)号：US12183225B2

公开(公告)日：2024-12-31

申请号：US17291008

申请日：2019-02-01

Applicant: Samsung Display Co., Ltd.

Inventor： Cha-dong Kim ,  Youngdae Kim ,  Hyunae Kim ,  Chongsup Chang ,  Eui-kang Heo

IPC: G09G3/00 ,  G09G3/3233 ,  G09G3/3291 ,  H01L29/786

Abstract: A display apparatus includes a base substrate including a display region in which an image is displayed and a peripheral region that is a non-display region adjacent to the display region, a plurality of pixels disposed on the base substrate in the display region, each of the pixels including a thin film transistor that includes an oxide semiconductor pattern, a data driver disposed in the peripheral region and configured to provide a data voltage to the pixels, and a plurality of test patterns disposed on the base substrate in the peripheral region, each of the test patterns including a test thin film transistor that includes a test oxide semiconductor pattern.