Touch sensor, display device, touch device, and touch system

By using a switching unit instead of external circuitry in the touch sensor, the structure is simplified, wiring difficulty and complexity of non-touch areas are reduced, and sensing accuracy and reliability are improved.

CN224457369UActive Publication Date: 2026-07-03BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202520839731.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-07-03
Estimated Expiration
2035-04-29

AI Technical Summary

Technical Problem

Existing touch sensors have a complex structure, with external circuitry including multiple transistors, electromagnetic control lines, and common voltage lines, which leads to high wiring difficulty and increased complexity in non-touch areas.

Method used

Multiple switching units are used to replace transistors, electromagnetic control lines and common voltage lines in the external circuit. The sensing loop is formed through the switching units, which reduces the structural complexity and wiring difficulty.

Benefits of technology

The structure of the touch sensor has been simplified, reducing the complexity and area of ​​the non-touch area, increasing the area of ​​the touch area, and improving sensing accuracy and reliability.

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Abstract

The utility model relates to a touch sensor, a display device, touch equipment and a touch system. The touch sensor includes: a plurality of touch electrodes for sensing a touch signal; the control circuit is electrically connected with the first end of each touch electrode; each switch unit is electrically connected between the second ends of the two touch electrodes; a sensing loop is formed among the switched-on switch unit, the two touch electrodes electrically connected with the switch unit and the control circuit. As the switch unit is simple in structure, the sensing loop is formed by replacing an external circuit with the switch unit, and the complexity of the structure of the touch sensor is reduced.
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