Touch panel and touch display device

A touch panel and touch electrode technology, which is applied in the fields of instruments, computing, and electrical digital data processing, etc., can solve the problem of uneven display of the touch display panel, and achieve the effects of mitigating sudden changes, isolating interference, and alleviating display unevenness

Active Publication Date: 2022-04-29
SHANGHAI AVIC OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a touch panel and a touch display device, which are used to solve the technical problem of uneven display in various regions of the touch display panel easily caused by low grayscale driving in the related art

Method used

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  • Touch panel and touch display device
  • Touch panel and touch display device

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] In order to reduce the thickness of the touch panel, the common electrode layer is set as a plurality of common electrodes arranged in an array, and the common electrodes are multiplexed as touch electrodes, and each touch electrode is connected to the control unit through a touch trace. Among them, the resistance of the touch wiring connected to the touch electrode far from the control unit is relatively large, and the resistance of the touch wiring connected to the touch electrode close to the control unit is small. When the common electrode signal is input, it will A phenomenon that causes uneven display in various areas of the display panel.

[0027] Therefore, if figure 1 As shown, the resistance of the touch wires 2 connected to the same touch electrode 1 will be reduced by connecting multiple touch wires 2 in parallel to the touch electrodes 1 that are far away from the control unit 3; In the electrode 1, the number of touch wires 2 connected to each touch elect...

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Abstract

The invention discloses a touch panel and a touch display device. The touch panel includes: a first type touch electrode, the first type touch electrode and the first signal line and the second signal line connected; between the first type touch electrode and the driving module, the second signal line includes a first part and a second part insulated from each other, by connecting the first part of the second signal line to the first The parallel connection of the first signal lines of one type of touch electrodes can effectively alleviate the sudden change of the first signal lines connected to two adjacent touch electrodes, thereby alleviating the problem of uneven display in each area of ​​the touch panel. Externally, by floating the second part of the second signal line, the interference between adjacent first signal lines can be effectively isolated.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to a touch panel and a touch display device. Background technique [0002] With the development of display technology, touch panels are more and more widely used in people's life. In recent years, the thickness of display devices has become thinner and thinner, and whether a touch panel can maintain good touch performance has become a key factor for evaluating a touch display panel. [0003] The common electrode layer of the touch display panel includes a plurality of common electrodes, and each common electrode is time-division-multiplexed as a touch electrode and a common electrode, and each touch electrode is electrically connected to the integrated control unit through a touch trace, and the distance control unit The resistance of the touch wiring connected to the touch electrode farther away is relatively large, and the resistance of the touch wiring connected to the tou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 席克瑞崔婷婷秦锋刘金娥李小和
Owner SHANGHAI AVIC OPTOELECTRONICS
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