Touch display substrate and manufacturing method thereof and touch display device

Abstract

The invention provides a touch display substrate and a manufacturing method thereof and a touch display device, and belongs to the field of touch display. The touch display substrate comprises a plurality of grid lines and a plurality of data lines, the grid lines and the data lines are arranged on an underlayer substrate in a staggered mode, the touch display substrate further comprises a plurality of touch electrodes and a plurality of touch signal lines, the touch electrodes are used for loading public electrode signals and touch scanning signals in a time sharing mode, each touch electrode is electrically connected with at least one touch signal line, and the touch signal lines are parallel to the grid lines. According to the technical scheme, the display effect of the touch display device can be improved, and the picture display quality of the touch display device can be improved.

Description

technical field [0001] The present invention relates to the field of touch display, in particular to a touch display substrate, a manufacturing method thereof, and a touch display device. Background technique [0002] With the development of touch screen technology and market requirements, the thinning of the overall module is the market development trend, so the touch structure is developed from the touch sensor plug-in type to the touch sensor embedded type, so that the thickness of the touch panel can be reduced. At the same time, the cost of the touch screen is greatly reduced. Currently, there are three main types of in-cell touch panels: resistive touch panels, capacitive touch panels, and optical touch panels. [0003] In the prior art, the realization principle of the self-capacitive touch display device is to multiplex the common electrodes into self-capacitive touch electrodes in the touch stage, and each capacitive touch electrode is connected to the touch chip th...

AI Technical Summary

Problems solved by technology

However, after the touch signal line is set, since the touch signal line is parallel to the data line, it will affect the layout of the data line. control signal line, the parasitic capacitance Cpd' between the pixel electrode of the sub-pixel in the nth column and the data line n-1 will not be equal to the parasitic capacitance between the pixel electrode of the sub-pixel in the nth column and the nth data line Cpd, due to the coupling effect of parasitic capacitance, the voltage change on the data line will be coupled to the pixel electrode, so that the n-1th data line and the nth data line will be connected to the pixel electrode of the nth column of sub-pixels The influence of different factors is also different, resulting in uneven brightness of the display screen and poor display quality of the screen.

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