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Capacitive touch screen and method for judging touch points of touch screen

A capacitive touch screen, touch point technology, applied in electrical digital data processing, input/output process of data processing, instruments, etc.

Active Publication Date: 2013-08-14
肖衣鉴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a capacitive touch screen and a method for judging touch points of the touch screen to solve the technical problem that the existing capacitive touch screen cannot accurately judge the position of multi-point touch

Method used

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  • Capacitive touch screen and method for judging touch points of touch screen

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Embodiment Construction

[0042] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] figure 1 It is a schematic structural diagram of the capacitive touch screen according to the first embodiment of the present invention. Such as figure 1 As shown, the present invention provides a capacitive touch screen, comprising a capacitive array substrate 1, which includes a plurality of transverse electrodes and longitudinal electrodes perpendicular to each other; a transmitting signal line 4, one end of which is connected to the plurality of transverse electrodes of the capacitive array substrate 1 and the vertical electrode, and transmit the input signal sent from the signal sending unit to it; the horizontal receiving signal line 5 and the vertical receiving signal line 6, one end of which is connected to the above-mentioned capacitive array substrate 1 and the above-mentioned transmitting signal line 4 respectively. A pl...

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Abstract

The invention provides a capacitive touch screen and a method for judging touch points of the touch screen. The capacitive touch screen comprises a capacitive array substrate, signal emitting wires, transverse signal receiving wires, longitudinal signal receiving wires, a transverse scanning multiway switch, a longitudinal scanning multiway switch, a first option switch, a signal sending unit, a first adaptive circuit, a second adaptive circuit and a microcontroller. The method for judging the touch points includes the steps of touch point quantity detection, fake touch point removal and genuine touch point coordinate output. According to the capacitive touch screen and the method, accuracy of judgment of multi-touch positions is improved.

Description

technical field [0001] The invention relates to a capacitive touch screen and a method for judging a touch point of the touch screen, in particular to a capacitive touch screen capable of accurately judging the position of a touch point and a method for judging a touch point of the touch screen. Background technique [0002] With the evolution of technology, the application of "touch" has become more and more diversified. From handheld devices to home appliances, "touch" is almost everywhere. [0003] We can see that portable consumer electronic devices are accelerating towards the integration of touch technology, and there is a significant increase in both quantity and type. Mobile phones are a good example. Mobile phones equipped with touch screens have rapidly spread to mainstream mid-range mobile phones from the exclusive equipment of early smartphones. As for the two major areas of touch technology: capacitive and resistive technologies, a hundred schools of thought ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 肖衣鉴
Owner 肖衣鉴