Gate drive circuit and detection method thereof, array substrate, display device

Abstract

The invention discloses a grid drive circuit, a detection method thereof, an array substrate, and a display device, and belongs to the field of display technology. The gate drive circuit includes a plurality of cascaded gate drive units, access units, first signal lines and second signal lines, and each access unit is connected to a corresponding gate drive unit and a corresponding gate drive unit respectively. The next-level gate drive unit of the unit is connected, and the access unit corresponding to the odd-numbered gate drive unit is connected to the first signal line, and the first signal line detects the output signal of the odd-numbered gate drive unit through the access unit The access unit corresponding to the even-numbered gate driving unit is connected to the second signal line, and the second signal line detects the output signal of the even-numbered gate driving unit through the access unit. The present invention only needs to connect the first signal line and the second signal line to the oscilloscope respectively to determine whether there are defects in the grid drive units of each level during detection, the operation is simple and convenient, and the detection efficiency is greatly improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate drive circuit and a detection method thereof, an array substrate, and a display device. Background technique [0002] Gate driver On Array (GOA for short) technology is a technology that integrates a gate driver integrated circuit (Gate Driver Integrated Circuit) of a liquid crystal display on an array (Array) substrate. The GOA circuit has multiple cascaded GOA units, and each GOA unit constitutes a shift register. The input signal of the GOA unit at this level is the output signal of the GOA unit at the upper level, and the output signal of the GOA unit at this level is the upper level. The reset signal of the first-level GOA unit, and the output signals of the GOA units at each level are high level in turn, so as to realize the progressive scanning of the liquid crystal panel. [0003] Since the output signal of the GOA unit of this level is the input signal o...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of troublesome operation and low detection efficiency in the prior art, an embodiment of the present invention provides a gate drive circuit and its detection method, an array substrate, and a display device

Images