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Touch panel device with high touch sensitivity and touch positioning method thereof

A touch panel and positioning method technology, which is applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of reduced storage capacitance variation and reduced touch sensitivity of touch panel devices.

Active Publication Date: 2011-02-23
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the size of the touch panel increases, the equivalent capacitance of the sensing line also increases, thereby reducing the amount of change in the capacitance voltage of the storage capacitor due to touch, that is, the touch sensitivity of the touch panel device is reduced.

Method used

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  • Touch panel device with high touch sensitivity and touch positioning method thereof
  • Touch panel device with high touch sensitivity and touch positioning method thereof
  • Touch panel device with high touch sensitivity and touch positioning method thereof

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Embodiment Construction

[0058] In the following, according to the touch panel device with high touch sensitivity and its touch positioning method according to the present invention, specific embodiments will be described in detail in conjunction with the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention. The numbering of the steps of the method flow is not used to limit the order of execution. Any method with the same effect produced by recombining the execution flow of the method steps is within the scope of the present invention.

[0059] figure 2 It is a schematic structural diagram of the touch panel device according to the first embodiment of the present invention. Such as figure 2As shown, the touch panel device 200 includes a touch panel 201, a plurality of sensing lines 210, a plurality of sensing capacitors 220, a plurality of first switches 215, a plurality of second switches 225, a plurality of storage capacitors 240, and a ...

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Abstract

The invention discloses a touch panel device with high touch sensitivity, which comprises a plurality of induction capacitors, a plurality of switches, a plurality of storage capacitors, a differentiate amplifier and a signal processing unit. In an induction time period, the plurality of switches are switched on periodically to transfer the charges of the plurality of induction capacitors to the plurality of storage capacitors periodically. The differentiate amplifier is used for amplifying the voltage difference of two corresponding storage capacitors to generate a touch sense signal. The signal processing unit is used for performing logic OR treatment on the two touch sense signals which are generated at the same panel touch position in different induction time periods and correspond to an alien induction capacitor combination so as to provide a touch position signal.

Description

[0001] The patent application of the present invention is a divisional application of the invention patent application filed by the applicant on August 25, 2009 with the application number 200910168585.7 and the title of the invention "a touch panel device with high touch sensitivity and its touch positioning method". technical field [0002] The invention relates to a touch panel device and a touch positioning method thereof, in particular to a touch panel device with high touch sensitivity and a touch positioning method thereof. Background technique [0003] In recent years, electronic products with touch panels have become a popular product orientation. Using touch panels as a communication interface between users and electronic products allows users to directly control the operation of electronic products through finger touch mode. No keyboard or mouse required. Generally speaking, touch panels are mainly resistive touch panels and capacitive touch panels. Resistive touc...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 杨竣崴杨佳峰许育民郑咏泽
Owner AU OPTRONICS CORP