公开(公告)号：US20210090479A1

公开(公告)日：2021-03-25

申请号：US16582097

申请日：2019-09-25

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yen-Cheng CHENG ,  Hsiu-Hui YANG

IPC: G09G3/00 ,  G09G3/20 ,  G01R31/28

Abstract: A display device and a detection method applied to the display device are provided. The display device includes a display panel, a source control circuit, and a leakage estimation circuit. The display panel includes pixels being arranged in M columns, wherein at least one panel-partition is defined on the display panel. The source control circuit includes M source drivers which respectively provide data voltages to the M columns of pixels. The leakage estimation circuit includes an evaluation circuit, a defect detection circuit, and a mode-switch. The evaluation circuit controls the defect detection circuit to perform a leakage estimation procedure so that a leakage current corresponding to the panel-partition is estimated when the at least one mode-switch is turned on.