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Control method of capacitive touch device

A technology of capacitive touch and control method, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc.

Inactive Publication Date: 2015-03-18
TIANJIN FUNA YUANCHUANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing touch screens generally can only realize two-dimensional touch

Method used

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  • Control method of capacitive touch device
  • Control method of capacitive touch device
  • Control method of capacitive touch device

Examples

Experimental program
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Embodiment Construction

[0020] see figure 1 , The first embodiment of the present invention provides a capacitive touch device 100 , which includes a first electrode plate 12 , a plurality of supports 14 and a second electrode plate 16 . The first electrode plate 12 and the second electrode plate 16 are spaced apart by the plurality of support bodies 14 , thereby forming a gap 18 between the first electrode plate 12 and the second electrode plate 16 . When an external force is pressed on the capacitive touch device 100 , the gap 18 between the first electrode plate 12 and the second electrode plate 16 will change.

[0021] The first electrode plate 12 includes a first conductive layer 122 , a first substrate 124 and a second conductive layer 126 . The first conductive layer 122 and the second conductive layer 126 of the first electrode plate 12 form a two-dimensional touch module. The first conductive layer 122 is disposed on the surface of the first substrate 124 away from the second electrode pla...

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Abstract

A method for detecting a touch point of a touch panel is disclosed. A first driving signal is applied to a first conductive layer or a second conductive layer to obtain a capacitance variety ΔC1 of a first capacitance value between the first conductive layer and the second conductive layer. A second driving signal is applied to a second conductive layer or a third conductive layer to obtain a capacitance variety ΔC2 of a second capacitance value between the second conductive layer and the third conductive layer. If ΔC2 is greater than a threshold value C0, outputting a three-dimensional coordinate of the touch point; if ΔC2 is less than or equal to the threshold value C0, outputting a two-dimensional coordinate of the touch point.

Description

technical field [0001] The invention relates to a capacitive touch device and a control method thereof, in particular to a capacitive touch device capable of realizing three-dimensional touch and a control method thereof. Background technique [0002] In recent years, along with the high-performance and diversified development of various electronic devices such as mobile phones and touch navigation systems, electronic devices with light-transmitting touch panels mounted on the front of display devices such as liquid crystals have gradually increased. Users of such electronic devices use the touch screen to visually confirm the display content of the display device located on the back of the touch screen, while pressing the touch screen with a finger or a pen to perform operations. Thereby, various functions of the electronic device can be operated. However, the existing touch screen generally can only realize two-dimensional touch. With the development of three-dimensional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0416G06F3/044G06F3/04166G06F3/0445G06F2203/04105G06F3/0446G06F3/041
Inventor 施博盛郑建勇赵志涵郑嘉雄
Owner TIANJIN FUNA YUANCHUANG TECH