Circuit and driving method for increasing signal amplitude of goa signal terminal when shutdown, gate driving circuit

Abstract

The invention, which relates to the technical field of displaying, provides a circuit for increasing a signal amplitude of a GOA signal terminal in a power-off state and a driving method thereof, anda gate driving circuit so that a problem that residual charges can not be eliminated completely because the GOA unit can not be turned on completely in a power-off state can be solved. The circuit comprises a plurality of first level conversion units, a plurality of cascaded control units, signal conversion modules, and first control modules. The output terminals of the control units are connectedwith second control terminals of the plurality of first level conversion units respectively; and all control units except one at the last level consist of signal conversion modules and first controlmodules and the control unit at the last level includes a signal conversion module. The signal conversion modules are used for outputting signals from first voltage terminals or signals from second voltage terminals by the output terminals of the signal conversion modules according to signals provided by a first signal input terminal and a reference voltage terminal. And the first control modulesare used for outputting signals from the first voltage terminals or signals from the second voltage terminals by the output terminals of the first control modules.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a circuit, a driving method, and a gate driving circuit for increasing the signal amplitude of a GOA signal terminal during shutdown. Background technique [0002] In recent years, the development of displays has shown a trend of high integration and low cost. One of the very important technologies is the mass production of GOA (Gate Driver on Array, integrated gate drive circuit) technology. GOA products use GOA technology to integrate the gate drive circuit on the array substrate of the display panel, so that the gate drive integrated circuit part can be saved, so as to reduce the product cost in terms of material cost and manufacturing process. [0003] In order to solve the problem of residual charge after shutdown, the existing GOA products usually turn on the GOA units at the same time to pull up the potential of the signal output terminals of all GOA units and discharge ...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a circuit, a driving method, and a gate drive circuit for increasing the signal amplitude of the GOA signal terminal during shutdown, which can improve the problem that the GOA unit cannot be fully opened during shutdown, resulting in the problem that the residual charge cannot be completely eliminated

Images