Shifting register, grid integration drive circuit and display screen

Abstract

The invention discloses a shifting register, a grid integration drive circuit and a display screen. The joint of a source of a first thin film transistor and a drain of a second thin film transistor is set as a first upward-pull node, the joint of a capacitor and a grid of a third thin film transistor is set as a second upward-pull node, and a electric leakage prevention module is added between the first upward-pull node and the second upward-pull node; the first upward-pull node and the second upward-pull node are connected in display time duration of a frame through the electric leakage prevention module under the control of a display control signal end so that a grid startup signal can be normally outputted by the shifting register; the first upward-pull node and the second upward-pull node are disconnected in the touch control time duration of the frame, that is, a resistor with large resistance is connected to a discharge path of the capacitor in series, and therefore time of the capacitor for discharge can be greatly shortened, the electric leakage speed of the capacitor is effectively decreased, and the problem that normal display may not be achieved when the capacitor is applied to a touch screen with high report rate is solved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a shift register, a gate integrated drive circuit and a display screen. Background technique [0002] In a thin film transistor liquid crystal display (TFT-LCD, Thin Film Transistor Liquid Crystal Display), usually a gate driving device provides a gate driving signal to the gate of each thin film transistor (TFT, Thin Film Transistor) in the pixel area. The gate drive device can be formed on the array substrate of the liquid crystal display through an array process, that is, the gate driver on array (GOA) process of the array substrate. The beautiful design is symmetrical on both sides, and at the same time, it also saves the bonding (Bonding) area of ​​the gate integrated circuit (IC, Integrated Circuit) and the wiring space of the fan-out (Fan-out), so that the design of the narrow border can be realized; and , This integration process can also save the Bonding ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a shift register, a gate driving circuit and a display screen to solve the problem that the existing GOA circuit cannot be displayed normally when it is applied to a touch screen with a high reporting rate

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