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A touch control screen and a display device

A touch screen and touch area technology, applied in the fields of display devices and touch screens, can solve the problems of large size, increase the difficulty of binding, and the number of binding terminals, so as to meet the requirements of small IC size and improve binding Difficulty, the effect of reducing the difficulty of binding

Active Publication Date: 2019-02-22
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 touch control screen and a display device
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Embodiment Construction

[0028] The description of the following embodiments refers to the attached drawings to illustrate specific embodiments that can be implemented in this application. The directional terms mentioned in this application, such as [Top], [Bottom], [Front], [Back], [Left], [Right], [Inner], [Outer], [Side], etc., are for reference only The direction of the additional schema. Therefore, the directional terms used are used to illustrate and understand the application, rather than to limit the application. In the figure, units with similar structures are indicated by the same reference numerals.

[0029] This application is aimed at the existing touch screens. Since the single-layer matrix self-capacitive touch screen requires a large number of channels, the IC size increases, the number of terminals in the binding area increases, and the technical problems of binding difficulty are greater. This embodiment can solve this defect.

[0030] Such as figure 1 As shown, this is a schematic str...

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Abstract

The invention provides a touch control screen and a display device, which comprises a substrate, a touch control area and a binding area on one side of the touch control area. The binding area comprises a signal channel and a control channel. A thin film transistor layer including spaced apart thin film transistors; A touch layer including touch electrodes distributed in an array; One end of the signal trace is connected with the source of at least two thin film transistors, and the other end is connected with a signal channel; One end of the control trace is connected with the gate of at least two thin film transistors, and the other end is connected with a control channel; A touch electrode correspondingly connects to the drain of a thin film transistor. The control channel is used to control the switching on or off of the thin film transistor, and the signal channel is used to transmit or receive the capacitive signal of the touch electrode in time division, so as to realize the touch, thereby reducing the number of channels in the binding region.

Description

Technical field [0001] This application relates to the field of touch technology, and in particular to a touch screen and a display device. Background technique [0002] At present, if self-capacitive touch screens want to achieve multi-point touch (such as more than five-point touch), they need to use single-layer matrix touch electrodes, 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 to determine 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 channels than the mutual capacitive touch screen; generally due to the matrix self-capacitive touch The screen requires more channels, which makes the size of the IC larger, an...

Claims

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Application Information

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Patent Type & Authority Applications(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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