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Capacitive touch device based sensing method

A technology of capacitive touch and sensing method, applied in the direction of electric digital data processing, input/output process of data processing, instruments, etc., can solve the problems of little change in contact area, inaccurate pressure detection, misoperation, etc. Achieve the effect of accurate capacitance signal and improve precision

Active Publication Date: 2015-03-18
唐山东唐电气股份有限公司
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  • Abstract
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Problems solved by technology

However, this method has a limited application range. For example, for relatively hard touch objects, the contact area with the touch device under different pressures does not change much, so the pressure detection is not accurate enough and may even cause misoperation.

Method used

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  • Capacitive touch device based sensing method
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  • Capacitive touch device based sensing method

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Embodiment Construction

[0019] The sensing method based on the capacitive touch device provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] see figure 1 , the embodiment of the present invention first provides a capacitive touch device 100, the capacitive touch device 100 includes a first substrate 10, a second substrate 20, a first single-layer capacitive touch sensor 30, a The second single-layer capacitive touch sensor 40 and a deformable insulator 50 . The second substrate 20 is arranged parallel to and spaced apart from the first substrate 10 . The first single-layer capacitive touch sensor 30 is disposed on the surface of the first substrate 10 and between the first substrate 10 and the second substrate 20 . The second single-layer capacitive touch sensor 40 is disposed on the surface of the second substrate 20 and between the first substrate 10 and the second substrate 20 . The deformable insulator 50 is ...

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Abstract

A sensing method based on a capacitive touch panel is provided. The capacitive touch panel includes a touch sensor, a pressure sensor, and a deformable insulating layer disposed between the touch sensor and the pressure sensor to form a gap between the touch sensor and the pressure sensor. In the sensing method, at least one touch position is located using the touch sensor. Pressure information is sensed based on a number of self-capacitance variation values detected from the pressure sensor. The self-capacitance variation values are generated by a deformation of the deformable insulating layer under an external force.

Description

technical field [0001] The invention relates to a touch sensing method, in particular to a sensing method capable of detecting pressure based on a capacitive touch device. Background technique [0002] The capacitive touch device generates a change in the capacitance value of the touch sensor through the contact of an object (such as a finger or other conductor), and the position of the touch point can be located from the change in the capacitance value. Traditional capacitive touch devices usually provide one-dimensional or two-dimensional touch point positioning, and some gestures are detected by judging the touch time, such as clicking, rotating, zooming and dragging. In addition, with the increase of user experience and various functions of capacitive touch devices, there are more and more detections and applications of the pressure acting on the touch devices in the prior art, such as writing brush characters. [0003] At present, in the prior art, different users or d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/044G06F3/0445G06F3/04166G06F2203/04105
Inventor 施博盛郑建勇赵志涵郑嘉雄
Owner 唐山东唐电气股份有限公司
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