Method and device for detecting touch panel

A touch screen and touch point technology, applied in the electronic field, can solve problems such as the inability to realize multi-touch detection of a 4-wire resistive touch screen, and achieve the effects of enriching user experience, simplifying user operation, and low cost

Inactive Publication Date: 2008-09-24
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, the existing technology only supports the detection of single-point touch on the 4-wire resistive t

Method used

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  • Method and device for detecting touch panel
  • Method and device for detecting touch panel

Examples

Experimental program
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Example Embodiment

[0029] The embodiments of the present invention provide a method and device for detecting a touch screen, which are used to detect the movement trend of two touch points on a 4-wire resistive touch screen.

[0030] The embodiment of the present invention acquires the movement trend of the two touch points, for example, the contraction or bounce action of two fingers on the touch screen, which can bring interesting functions to the application, such as zooming in and out the picture displayed on the touch screen. , Stretching and other operations, thereby enriching user experience and facilitating user operations.

[0031] The embodiments of the present invention will be described in detail below in conjunction with the drawings.

[0032] See figure 2 , A method for detecting a touch screen provided by an embodiment of the present invention generally includes the steps:

[0033] S201: Position a touch point on the touch screen to obtain first coordinate axis position information a...

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Abstract

The invention discloses a method and a device for detecting touch screen, which is used for detecting the moving tendency of two touch points on a four-wiring system resistive touch screen. The method for detecting the touch screen provided by the invention includes: the touch points of the touch screen is positioned to get the information of a first coordinate axis position and a second coordinate axis position; a first calculation value and a second calculation value of a touch resistance resulted from touching the touch screen by the touch point are calculated according the information of the first coordinate axis position and the second coordinate axis position; the moving tendency information of the touch point in the direction of the first coordinate axis and the second coordinate axis position according to the difference between the first calculation value and the second calculation value. The technical proposal provided by the invention achieves the detection of the moving tendency of the two touch points on the four-wiring system resistive touch screen, thus enriching the experience of the user and simplifying the operation of the user.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method and device for detecting a touch screen. Background technique [0002] Touch screen technology is a main input method of human-computer interaction in the future, and input tools such as keyboards and mice will gradually be eliminated, and multi-touch (Multitouch) technology is a more attractive bright spot in this field, but most of this technology The technology of using optics to detect the touch screen is too expensive and unacceptable to most users at present. [0003] The traditional 4-wire resistive touch screen includes two-layer panels of X layer and Y layer, and its usage mode is as follows figure 1 As shown, wherein, R1 and R3 represent the equivalent resistance of the two parts into which the X conductive layer is divided, and R4 and R6 represent the equivalent resistance of the two parts into which the Y conductive layer is divided. The values ​​of the...

Claims

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Application Information

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IPC IPC(8): G06F3/045
Inventor 谢律由海
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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