Gate driver detection circuit and display device

Abstract

The invention discloses a gate driver detection circuit and a display device. The gate driver detection circuit comprises a signal deriving module arranged one by one in correspondence with the signaloutput terminals of each shift register and a detection module connected with the signal deriving module. The signal deriving module comprises a first signal deriving sub-module and a second signal deriving sub-module. Each shift register is cascaded to form a gate driver. As that signal derive module is arranged, detection module, A signal deriving module transmits the gate scan signal to the detection module. The detection module can realize the real-time acquisition and recording of the gate scanning signal, so as to realize the real-time detection of the gate scanning signal, and then canquickly diagnose whether the gate scanning signal is abnormal or not according to the detection result, and quickly locate the abnormal position of the gate scanning signal, so as to eliminate the fault in time.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a detection circuit of a gate driver and a display device. Background technique [0002] At present, in order to reduce the manufacturing cost of the display device and realize the narrow frame of the display device, more and more gate driver circuit (Gate Driver On Array, GOA) technology is used in the manufacturing process of the display device, and the corresponding gate scanning is output through the GOA circuit. Signal. The normality of the gate scanning signals at all levels directly affects the display of the display device. Once there is a problem with the gate scanning signal output by a certain level of GOA, it will cause abnormal display. [0003] Since all GOA circuits are integrated inside the panel, the gate scanning signal waveform on each gate line cannot be obtained from the outside, which is very unfavorable for later analysis of product problems. Therefore, ...

AI Technical Summary

Problems solved by technology

Whether the gate scanning signals at all levels are normal or not directly affects the display of the display device. Once there is a problem with the gate scanning signal output by a certain level of GOA, it will cause abnormal display.

[0003] Since all GOA circuits are integrated inside the panel, the gate scanning signal waveform on each gate line cannot be obtained from the outside, which is very unfavorable for later analysis of product problems

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