Gate driving unit and gate driving method

Abstract

The invention provides a gate driving unit and a gate driving method. The gate driving unit comprises an input unit, a driving unit, a pull-down unit and a pull-down control unit. The pull-down unit is provided with a cascade signal output end at the same level and an output end, in the pull-up stage, the cascade signal output end at the same level and the output end output signals, in the pull-down stage and the level maintaining stage, the level of the cascade signal output end at the same level is pulled down to a first reference low level, and the level of the output end is pulled down toa second reference low level. The pull-down control unit outputs a control signal in a level maintaining stage to ensure that the cascade signal output end at the same level and the output end of thestage are in low level. According to the gate driving unit and the gate driving method, the problem of signal errors caused by electric leakage of the negative threshold transistor in the circuit canbe solved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate driving unit and a gate driving method. Background technique [0002] With the advancement of display technology, in addition to the improvement of display quality, in order to allow users to have a better visual experience, the frame of the display is gradually narrowed, and the direction of the frameless display frame is developing. [0003] Among them, the gate drive technology (gate on array, GOA) that integrates thin film transistors (thin film transistor, TFT), that is, in the existing array substrate with thin film transistors arranged in an array, the GOA unit is integrated and fabricated on the array substrate On the other hand, instead of the old gate drive unit and source drive unit located on the longitudinal and lateral sides of the display panel, the number of chips located outside the display area can be reduced, and the integrated arrangement of th...

AI Technical Summary

Problems solved by technology

However, this approach greatly increases the number of transistors required, resulting in increased manufacturing costs, and is also not conducive to the thinning of the display panel.

[0007] Therefore, the present invention aims at providing a gate driving circuit and a gate driving method, which can prevent the leakage caused by the characteristics of the negative threshold transistor from affecting the output signal of the gate driving unit when the gate driving circuit has a negative threshold transistor. correctness

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