Touch screen and touch display electronic device

A technology of touch screen and display area, which is applied in the fields of electrical digital data processing, instrumentation, calculation, etc. It can solve the problems of inability to detect different positions of fingers and low touch detection accuracy, so as to ensure normal display, avoid light leakage, and improve accuracy Effect

CN105760033AActive Publication Date: 2016-07-13SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-07-13

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Abstract

The invention discloses a touch screen and a touch display electronic device. The touch screen comprises a substrate, an auxiliary electrode layer, a common electrode layer and a routing layer, wherein the auxiliary electrode layer, the common electrode layer and the routing layer are arranged on the same side of the substrate, and the common electrode layer and the routing layer are oppositely arranged in the direction perpendicular to the substrate. The common electrode layer comprises a plurality of common electrode blocks which are the same. Each common electrode block comprises a center electrode and a sawtooth electrode electrically connected with the center electrode. The opposite sawtooth electrodes of every two adjacent common electrodes are nested. The routing layer comprises a plurality of first wires electrically and correspondingly connected with the common electrode blocks in a one-to-one mode. The auxiliary electrode layer comprises a plurality of auxiliary electrode blocks. The sawtooth electrodes adjacent to the edge of the substrate and the auxiliary electrode blocks are nested. When the common electrode blocks input common voltage signals for image display control, the auxiliary electrode blocks input common voltage signals. The touch screen improves the touch detection precision, and prevents the problems of visibility of edge images and light leakage of pixel electrodes near to the edge of the substrate.
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Description

technical field

[0001] The present invention relates to the technical field of touch devices, and more specifically, to a touch screen and touch display electronic equipment. Background technique

[0002] With the continuous development of science and technology, more and more touch electronic devices are used in people's daily life and work, which brings great convenience to people's daily life and work, and has become an indispensable and important tool for people today. tool.

[0003] The embedded self-capacitance touch screen has the advantages of high touch accuracy and high signal-to-noise ratio, and has become a commonly used touch screen for touch electronic devices. refer to figure 1 , figure 1 It is a structural schematic diagram of a common self-capacitance touch screen in the prior art, and the self-capacitance touch screen includes: a common electrode layer and a wiring layer arranged opposite to each other. The common electrode layer and the wiring layer ar...

Examples

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Dividing the common electrode layer into a plurality of electrode blocks with sawtooth structures on the edges, and making the sawtooths between adjacent electrode blocks nested with each other can improve the touch detection accuracy. When performing a touch operation, when touching the central area of ​​a common electrode block, only the touched electrode block will generate a detection signal; when touching a jagged area where a certain common electro...