Detection circuit, array substrate and display panel

Abstract

The invention relates to the technical field of display, and provides a detection circuit, an array substrate and a display panel. The array substrate comprises a plurality of signal lines. The plurality of signal lines comprise at least one grid line and a plurality of data lines; each signal line comprises a plurality of signal lines. The detection circuit is characterized in that the detectioncircuit comprises a plurality of first switch units in one-to-one correspondence with the signal lines; the first switch units are in one-to-one correspondence with the signal lines; the first ends ofthe first switch units are connected with the first ends of the signal lines; the second ends of the first switch units are in short circuit, and the control ends are connected with the first controlsignal ends; a plurality of second switch units are in one-to-one correspondence with the signals; the first ends of the second switch units are connected with the second ends of the signal lines, the second ends are in mutual short circuit, and the control ends are connected with the second control signal ends. According to the detection circuit, SD OS detection (SD Opening / Shunting, source / drain layer open circuit or short circuit) of the array substrate can be realized, and SD AT detection (SD Array Test, source / drain layer array detection) of the array substrate can also be realized.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a detection circuit, an array substrate, and a display panel. Background technique [0002] The array substrate is generally integrated with various signal lines, and the various signal lines include at least one gate and various data lines. For example, the gate may include a signal line for providing a gate driving signal to the pixel driving circuit, and a signal line for providing a control signal to the gate of the sensing transistor in the pixel driving circuit. The data lines may include signal lines for providing data signals to the pixel driving circuit, signal lines for providing power signals to the pixel driving circuit, and sensing signal lines connected to the source / drain of the sensing transistor in the pixel driving circuit. Since the signal lines integrated on the array substrate are relatively dense, it is easy to cause a short circuit between the sig...

AI Technical Summary

Problems solved by technology

Since the signal lines integrated on the array substrate are relatively dense, it is easy to cause a short circuit between the signal lines on the array substrate, and the signal line itself is also prone to open circuit, resulting in poor display.

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