GOA circuit and display panel

Abstract

The invention provides a GOA circuit and a display panel, and the GOA circuit enables a first pull-up control module and a first pull-up module to work at the same time or enables a second pull-up control module and a second pull-up module to work at the same time under the control of a first low-frequency signal and a second low-frequency signal. Therefore, the first pull-up control module and the second pull-up control module can work alternately, and the first pull-up module and the second pull-up module can work alternately. Compared with a pull-up control module and a pull-up module of a GOA circuit in the prior art, the first pull-up control module and the first pull-up module in the GOA circuit, and the second pull-up control module and the second pull-up module in the GOA circuit only need to work for a part of time; therefore, the problem of threshold voltage drift caused by long-time work of the pull-up control module and the thin film transistor of the pull-up module can be suppressed, the GOA circuit failure caused by abnormal output of the scanning signal is avoided, the display effect of the display panel is improved, and the abnormal phenomenon of a picture is prevented.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] GOA (Gate Driver On Array) technology refers to integrating the gate driver circuit of the display panel on the glass substrate to realize the scanning drive of the display panel. GOA technology can reduce the bonding process of external ICs and reduce product costs. It is suitable for Make narrow bezel display products. [0003] The GOA circuit includes a plurality of cascaded GOA units, and each level of GOA unit includes a pull-up control module, a pull-up module, a bootstrap capacitor Cb, a downlink module, a pull-down module, and a pull-down maintenance module, wherein the pull-up control module and the pull-up The modules include a thin-film transistor respectively. When the GOA circuit is working for a long time, the thin-film transistor of the pull-up control module and the thin-film transistor o...

AI Technical Summary

Problems solved by technology

[0003] The GOA circuit includes a plurality of cascaded GOA units, and each level of GOA unit includes a pull-up control module, a pull-up module, a bootstrap capacitor Cb, a downlink module, a pull-down module, and a pull-down maintenance module, wherein the pull-up control module and the pull-up The modules include a thin-film transistor respectively. When the GOA circuit is working for a long time, the thin-film transistor of the pull-up control module and the thin-film transistor of the pull-up module will easily shift the threshold voltage due to long-term stress, making the scan signal output abnormal. , causing the GOA circuit to fail

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