Inspection and repairing method of display panel

• Main Authors: LIN, YI-TSUN, CHEN, YI-FU
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2015
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SEALS; TESTING

A display panel is provided. The display panel includes a plurality of gate lines, a first gate driver -on-array (GOA) circuit, and a second GOA circuit. The first GOA circuit includes a plurality of first gate driver units electrically connected to a first end of the gate line respectively. The second GOA circuit includes a plurality of second gate driver units electrically connected to a second end of the gate line respectively. When the first GOA circuit fails, a start signal ST, a high frequency signal HC, a low level switching signal (low frequency signal) LC and a low level signal VSS are delivered to the second gate driver units, the low level switching signal LC and the low level signal VSS are delivered to the first gate driver units, and the start signal ST and the high frequency signal HC are disconnected from the first gate driver units to detect a defective first gate driver unit. A repairing process is performed to repair the defective first gate driver unit.