GOA circuit and display panel

Abstract

The present disclosure provides a GOA circuit comprising a plurality of cascaded GOA circuit units, the n-th (n > 4, and n is a positive integer) GOA circuit unit comprising a pull-down holding circuit module, the pull-down holding circuit module comprising: an inverter comprising a first unit, a second unit and a first thin film transistor; voltage stabilization unit, wherein the first node, thepower supply low-voltage signal end and the second node are respectively connected; a first clock signal, a second clock signal and an nth-stage clock are separately fed into an input end of a first unit and an input end of a second unit; the time of forward current stress on the thin film transistors in the first unit and the second unit is reduced; therefore, the offset of the threshold voltageof the thin film transistors is reduced, the stability of the thin film transistors is improved, normal waveform output of scanning signals is guaranteed, the first units and the second units are connected to the second node through the first thin film transistors, the number of the thin film transistors is reduced, and the space occupied by the GOA circuit is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] The gate drive on array substrate (gated drive on array, GOA) technology is to use the existing array substrate manufacturing process of the liquid crystal display panel to fabricate the gate drive circuit on the substrate to realize the driving method of scanning the scanning lines row by row. [0003] Such as figure 1 as shown, figure 1 The schematic diagram of the existing GOA circuit provided for this disclosure, the nth stage GOA circuit unit includes a pull-up control circuit module 11, a pull-up circuit module 12, a pull-down circuit module 13, a pull-down maintenance circuit module 14, a signal conversion circuit module 15 and an automatic Taking the capacitor Cb into consideration, the pull-down sustaining circuit module 14 includes thin film transistors T42, T43, T51, T52, T53, T54, T61, T62, T63, T64. ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present disclosure provides a GOA circuit and a display panel, which are used to solve the problem that the thin film transistor in the pull-down sustaining circuit module of the existing GOA circuit is easily affected by the forward current stress, which causes serious threshold voltage shift and affects the scanning signal. Waveform output and other issues

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