GOA circuit and liquid crystal display device

Abstract

The invention discloses a GOA circuit for a liquid crystal display device. The GOA circuit comprises a plurality of cascaded GOA units. The nth-level GOA unit includes a clock signal source, a constant-voltage low-level source, a pull-up control module, a pull-up module, a downloading module, a pull-down module, a pull-down maintenance module, a bootstrap capacitor and a short-circuit control module. The output terminal of the pull-up control module is connected to the pull-up module, the downloading module, the pull-down module, the pull-down maintenance module and the bootstrap capacitor electrically; the constant-voltage low-level source is connected with the pull-down maintenance module and the pull-down module electrically; the clock signal source is electrically connected to the pull-up module, the downloading module, and the short-circuit control module; and the short-circuit control module is connected with the pull-down maintenance module electrically.

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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