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A kind of touch screen, display device

A technology of touch screen and touch area, which is applied in the fields of instruments, computing, and electrical digital data processing, etc., which can solve the problems of a large number of binding terminals, increase the difficulty of binding, and large size, so as to reduce the difficulty of binding and reduce the Effect of small IC size and reduced number of channels

Active Publication Date: 2020-06-30
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the too many channels of the matrix touch electrode, to achieve the same accuracy as the mutual capacitive touch screen, it needs far more than the number of channels of the mutual capacitive touch screen; generally due to the matrix self capacitive touch The screen requires a large number of channels, which makes the size of the IC larger, and also leads to a larger number of bonding terminals, which increases the difficulty of bonding

Method used

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  • A kind of touch screen, display device
  • A kind of touch screen, display device

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Embodiment Construction

[0028] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0029] This application is aimed at the existing touch screen, because the number of channels required by the single-layer matrix self-capacitance touch screen is large, which leads to the increase in the size of the IC, the increase in the number of terminals in the binding area, and the technical problems of greater difficulty in binding. This embodiment can solve this ...

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Abstract

Provided are a touch screen and a display device. The touch screen comprises thin film transistors and touch electrodes provided at a substrate. The substrate comprises signal channels and control channels. The signal channels are used to send or receive capacitance signals associated with the touch electrodes at different times. The control channels are used to control turning on or off of the thin film transistors. Sources of at least two thin film transistors are connected to a signal channel by means of a signal line. Gates of at least two thin film transistors are connected to a control channel by means of a control line. One touch electrode is connected to a drain of one thin film transistor.

Description

technical field [0001] The present application relates to the field of touch technology, in particular to a touch screen and a display device. Background technique [0002] At present, if a self-capacitive touch screen wants to realize multi-touch (such as touch with more than five points), it needs to use a single-layer matrix touch electrode, and each touch electrode needs to correspond to a signal channel , when the finger touches, it will change the signal amount of the touch electrode in the finger area, so as to judge the touch position; since each touch electrode is independent, it will not interfere with each other, so it can support multi-touch. [0003] However, due to the too many channels of the matrix touch electrode, to achieve the same accuracy as the mutual capacitive touch screen, it needs far more than the number of channels of the mutual capacitive touch screen; generally due to the matrix self capacitive touch The screen requires a large number of channe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 马亚龙戴其兵邓义超
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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