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Method for positioning touch screen

A positioning method and touch screen technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of high touch screen manufacturing process, complicated driving method, and small number of touch points, and achieve good light penetration Transparency, simple driving method, effect of improved resolution and accuracy

Active Publication Date: 2011-01-12
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high manufacturing process and complex driving method of the prior art touch screen, and a small number of simultaneous touch points, it is necessary to provide a touch screen with relatively simple manufacturing process and driving method, and which can simultaneously operate multiple touch points positioning method

Method used

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  • Method for positioning touch screen

Examples

Experimental program
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Embodiment Construction

[0019] see figure 1 , which is a schematic cross-sectional structure diagram of the first embodiment of the touch screen of the present invention. The touch screen 2 includes a first substrate 21 and a second substrate 22 oppositely disposed. The first substrate 21 is generally made of elastic material, and the second substrate 22 is made of rigid material to bear a certain pressure. In this embodiment, the first substrate 21 is a polyester film, and the second substrate 22 is a glass substrate. A first conductive layer 23 is disposed on a surface of the first substrate 21 opposite to the second substrate 22 . A second conductive layer 24 is disposed on a surface of the second substrate 22 opposite to the first substrate 21 . An adhesive layer 25 is disposed at the edge between the first substrate 21 and the second substrate 22 to bond the first substrate 21 and the second substrate 22 together. The distance between the first conductive layer 23 and the second conductive l...

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Abstract

The invention relates to a method for positioning a touch screen. The method comprises the following steps of: providing a touch screen comprising a conducting layer with impedance anisotropy and a plurality of spaced exploring electrodes arranged at one side edge of the conducting layer; providing a first voltage for the conducting layer; when the touch screen is contacted, providing a second voltage for the conducting layer, wherein the application point of the second voltage is defined to be a touch point; sequentially measuring the voltage of the plurality of exploring electrodes and finding out relative extreme voltage and the voltage of an exploring electrode nearest to the extreme voltage; and determining a position coordinate of the touch point on the conducting layer according to the measured extreme voltage and the exploring electrode position with the nearest exploring voltage. The manufacture process and the driving method of the touch screen are both simpler, and operations of a plurality of touch points can be simultaneously carried out.

Description

technical field [0001] The invention relates to a positioning method of a touch screen. Background technique [0002] The touch screens in the prior art mainly include resistive, capacitive, infrared and surface acoustic wave types. Generally, such as four-wire or five-wire sensing resistive touch screen, because it detects the voltage change on the conductive film in an analog way, therefore, only a single touch action can be recognized at the same time during use. When the user touches multiple points at the same time When inputting by touch action, a malfunction may occur. [0003] Recently, a touch screen capable of simultaneous two-point or multi-point input has been developed, which has gradually become a popular trend. The multi-point touch screen is mainly a multi-line capacitive touch screen, which generally includes two transparent conductive layers respectively arranged on both sides of a transparent glass. According to the difference of product resolution, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/045
Inventor 陈柏仰施博盛潘轩霖
Owner INNOCOM TECH (SHENZHEN) CO LTD
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