Embedded type touch screen and display device

Abstract

The invention discloses an embedded type touch screen and a display device. Multiple self-capacitance electrodes which are arranged on the same layer and are independent are arranged on an array substrate based on the self-capacitance principle, a touch detection chip can judge the touch position by detecting the capacitance value change of all the self-capacitance electrodes in a touch time period, wires which are insulated from data lines and have the same wiring direction with the data lines are arranged on the same layer of the data lines, and the wires are used for connecting the self-capacitance electrodes to the touch detection chip. Due to the fact that graphs of the layer where the data lines are located are changed and the wires connected with the self-capacitance electrodes are formed, compared with a manufacturing process that two film layers need to be added based on an existing array substrate manufacturing process, the touch function can be achieved only by adding the process for forming a layer of self-capacitance electrodes, production cost is reduced, and production efficiency is improved. The wires and the data lines have the same wiring direction, the joints of the wires and the touch detection chip cannot occupy frames on the two sides, and the narrow frame design is easily achieved.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to an embedded touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. Currently, touch panels can be classified into: Add on Mode Touch Panel, On Cell Touch Panel, and In Cell Touch Panel according to their composition and structure. Among them, the plug-in touch screen is produced separately from the touch screen and Liquid Crystal Display (LCD), and then bonded together to form a liquid crystal display with touch function. The plug-in touch screen has high production costs and low light transmittance. Low, thick modules and other shortcomings. The embedded touch screen embeds the touch electrodes of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module and greatly reduce the production cos...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned in-cell touch screen, the wires connecting the self-capacitance electrodes and the touch detection chip and the self-capacitance electrodes are generally arranged in different layers. Therefore, it is necessary to add two new film layers inside the existing display panel, resulting in New processes need to be added when making panels, which increases production costs and is not conducive to improving production efficiency

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