INCELL SELF-CAPACITIVE TOUCH DISPLAY SUBSTRATE AND TOUCH DISPLAY DEVICE

摘要

A touch display substrate including: a base substrate having a plurality of pixel regions arranged in the form of an array; a common electrode layer on the base substrate, divided into a plurality of self-capacitive electrodes independent from each other, an orthogonal projection of each of the self-capacitive electrodes on the base substrate covering more than one of the pixel regions; a plurality of touch data lines, arranged in a different layer from the self-capacitive electrodes and each connected with a corresponding one of the self-capacitive electrodes, orthogonal projections of the touch data lines on the base substrate being located within gaps between the plurality of pixel regions; a touch detection chip, connected with each of the self-capacitive electrodes through a corresponding one of the touch data lines, and configured to load a common electrode signal to each of the self-capacitive electrodes in a display period through the corresponding touch data line, and to determine a touch position in a touch period by detecting a change in a capacitance of each of the self-capacitive electrodes through the corresponding touch data line.