Capacitive touch screen for improving edge touch sensitive accuracy and data processing method thereof

A technology of capacitive touch screen and inductive touch, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., to achieve the effect of improving sensitivity, accurate center position coordinate data, and increasing information volume

Active Publication Date: 2010-11-10
ORISE TECHNOLOGY CO LTD
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  • Abstract
  • Description
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  • Application Information

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  • Capacitive touch screen for improving edge touch sensitive accuracy and data processing method thereof
  • Capacitive touch screen for improving edge touch sensitive accuracy and data processing method thereof
  • Capacitive touch screen for improving edge touch sensitive accuracy and data processing method thereof

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Embodiment Construction

[0042] Further details will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0043] The present invention proposes a capacitive touch screen that improves the accuracy of edge-sensing touch, including electrode plate groups 100 in the same plane or belonging to different planes. An equivalent capacitor array 300 formed by rectangular strip-shaped equivalent electrode plates 200 orthogonal to each other is formed on the plane. The width of the equivalent electrode plate 220 located at the edge of the touch screen in the equivalent capacitance array 300 is smaller than the width of the equivalent electrode plate 210 located in the middle of the touch screen arranged along the same direction as the equivalent electrode plate 220 .

[0044] Such as Picture 1-1 As shown, the equivalent capacitance array 300 is formed by strip-shaped rectangular equivalent electrode plates 200 extending longitudinally and strip-shaped rectangular equivalent ...

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Abstract

The invention relates to a capacitive touch screen for improving the edge touch sensitive accuracy and a method for eliminating edge effect by compensating coordinate data of a touch position. The touch screen comprises plate electrode groups in the same plane or belonging to different planes, and under normal working conditions, the plate electrode groups form equivalent capacitance arrays by mutual orthogonal of rectangular strip-shaped equivalent plate electrodes in the plane of the touch screen. The width of the equivalent plate electrodes positioned at the edge of the touch screen in theequivalent capacitance arrays is smaller than the width of the equivalent plate electrodes which are positioned in the middle of the touch screen and arranged along the same direction of the equivalent plate electrodes. The invention reduces the width of the equivalent plate electrodes at the edge, increases the information quantity retrievable by the touch action on the edge of the touch screen,improves the sensitivity of the edge of the touch screen, reduces the error of center coordinate data, and solves the problem of edge effect of the touch screen; and in addition, by applying the method for compensating the coordinate data of the touch position provided by the invention, the touch accuracy at the edge of the touch screen is further improved.

Description

technical field [0001] The present invention relates to an input device that converts a touch action into an available electrical signal, in particular to an input device that detects capacitance changes caused by a touch action, that is, a capacitive touch screen. Background technique [0002] Capacitive touch screens include self-capacitance touch screens and mutual-capacitance touch screens. The basic principle of using the human body or a special touch device to change the capacitance value is to convert the action of touching the screen into an electrical signal. The electrical signal is processed by the data processing module into a The coordinate data of the center position of the touch area is transmitted as input data to corresponding information processing equipment, and the information processing equipment includes computers, palmtop computers, mobile communication terminals commonly known as mobile phones, and video / audio playback equipment. The capacitive touch ...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 莫良华张靖恺彭玲
Owner ORISE TECHNOLOGY CO LTD
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