Gate drive circuit

Abstract

According to the embodiment, the invention discloses a gate drive circuit. In the gate drive circuit, first control modules respond to signals of first signal en and second signal ends, and in a touch control stage, third voltage ends and first output ends are conducted by virtue of the first control modules; second control modules respond to the signals of the first signal ends and the second signal ends, and in the touch control stage, the third voltage ends and the second output ends are conducted by virtue of the second control modules; therefore, by arranging the first and the second control modules in various canning units, in the touch control stage, the first output ends are controlled at a low potential by virtue of the first control modules, and meanwhile, the second output ends are controlled at a low potential by virtue of the second control modules, so that a capacity coupling action between various gate lines and a touch control electrode in a touch control display panel applied to the gate drive circuit is weakened, and touch control detection precision is enhanced; and an added cable is relatively short, relatively narrow and relatively small in occupied bezel area; therefore, the gate drive circuit is conducive to implementation of a narrow bezel.

Description

technical field [0001] The present invention relates to the technical field of display driving, in particular to a gate driving circuit. Background technique [0002] With the development of display technology, more and more display panels are integrated with touch function, and its touch principle is divided into mutual capacitance touch technology and self-capacitance touch technology, wherein, the self-capacitance touch technology is due to The mutual capacitance touch technology only needs one layer of touch electrodes, which is more suitable for the development of thinner and thinner display panels. [0003] At present, the self-capacitive touch display panel divides the common electrode layer in the display panel into multiple common electrode units, adopts a time-sharing driving method, and multiplexes the common electrode units into touch electrode units to further reduce the The thickness of the display panel also improves the production efficiency and reduces the ...

AI Technical Summary

Problems solved by technology

In this regard, the gate drive circuit of the existing touch display panel usually adopts the method of additionally adding control electrode lines to be electrically connected to the output terminals of the scanning units corresponding to each gate line, so as to realize the potential of each gate line in the touch detection stage. However, due to the large number of gate lines in the touch display panel, the length and width of the electrical connection lines electrically connected to the scanning units corresponding to some gate lines in the gate drive circuit are relatively long, thus As a result, the border area of ​​the touch display panel is relatively large, which is not conducive to the realization of a narrow border

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