A goa circuit and liquid crystal display

Abstract

A GOA circuit, comprising a plurality of cascaded GOA units, wherein an nth stage GOA unit comprises: a clock signal source (CLK), a constant-voltage low level source (VSS), a pull-up control module (401), a pull-up module (403), a down-transmitting module (404), a pull-down module (405), a pull-down maintaining module (406), a bootstrap capacitor (Cb) and a short-circuiting control module (402). An output end of the pull-up control module (401) is connected to the pull-up module (403), the down-transmitting module (404), the pull-down module (405), the pull-down maintaining module (406) and the bootstrap capacitor (Cb); the constant-voltage low level source (VSS) is connected to the pull-down maintaining module (406) and the pull-down module (405); the clock signal source (CLK) is connected to the pull-up module (403), the down-transmitting module (404) and the short-circuiting control module (402); and the short-circuiting control module (402) is connected to the pull-down maintaining module (406).

Description

technical field [0001] The invention relates to the technical field of liquid crystal panels, in particular to a GOA circuit and a liquid crystal display. Background technique [0002] The development of the existing liquid crystal display device has shown the development trend of narrow frame, thinner and lower cost, in which GOA (Gate Drive On Array, array substrate row drive) technology has become an important technology. The scanning line driving circuit can be integrated on the array substrate of the liquid crystal panel through the GOA technology, thereby reducing the product cost in terms of material cost and manufacturing process. [0003] figure 1 It is a schematic diagram of a GOA circuit in the prior art. The GOA circuit includes a pull-up control module 101, a pull-up module 102, a pull-down module 103, and a pull-down maintenance module 104 (which includes a first pull-down maintenance module 1041 and a second pull-down maintenance module 1042). When G(n-5) e...

AI Technical Summary

Problems solved by technology

In this way, when the GOA circuit works in this state for a long time, it is easy to cause the aging of the fifty-first thin film transistor T51 and the fifty-second thin film transistor T52 (or the sixty-first thin film transistor T61 and the sixty-second thin film transistor T62) to accelerate, Also increases power consumption

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