公开(公告)号：US11409395B2

公开(公告)日：2022-08-09

申请号：US16667335

申请日：2019-10-29

Applicant: Samsung Display Co., Ltd.

Inventor： Il Ho Lee ,  Sanghyuk Kwon ,  Yeongbin Kim ,  Chansik Noh ,  Eunchul Shin ,  Sangmin Choi

IPC: G06F3/044 ,  G01R27/26 ,  G01R31/28 ,  G09G3/00

Abstract: A testing device for testing a display module may include touch test pads electrically connected to touch pads of a display module, a first power test pad and a second power test pad electrically connected to a first power pad and a second power pad of the display module, a voltage generator providing a first test power voltage and a second power test voltage to the first power test pad and second power test pad, and a capacitance measurement circuit measuring capacitance between the first power test pad and second power test pad.