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Three-dimensional multiple-point type touch screen and control method thereof

A touch screen, multi-point technology, applied in the field of three-dimensional multi-point touch screen, multi-point touch screen based on three-dimensional capacitive pressure sensor, can solve the problem that three-dimensional force calculation cannot be performed, and achieve convenient and flexible device selection, improve sensitivity, high linear effect

Inactive Publication Date: 2015-10-14
ANHUI TECHN COLLEGE OF MECHANICAL & ELECTRICAL ENG
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Problems solved by technology

The pressure sensors all just collect the pressure in the vertical direction: for example, Chinese patent CN201110074892.6 adopts 10 film pressure sensors corresponding to the pressure distribution points of the soles of the feet; CN201010230489.3 adopts a matrix pressure sensor of 8 columns×10 rows; The 40 by 40 piezoresistor matrix used cannot perform three-dimensional force calculations

Method used

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  • Three-dimensional multiple-point type touch screen and control method thereof
  • Three-dimensional multiple-point type touch screen and control method thereof
  • Three-dimensional multiple-point type touch screen and control method thereof

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Embodiment Construction

[0027] Referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention include the shape, structure, mutual position and connection relationship of each part, the function and working principle of each part, and the manufacturing process of the various components involved. And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0028] Such as figure 1 with figure 2 As shown, a three-dimensional multi-point touch screen includes a touch layer with a top surface and a bottom surface, a pressure sensor array and a touch sensing sensor connected to the bottom surface of the touch layer, and is connected to the pressure sensor array and the touch sensing sensor respectively A control unit, a touch screen shell composed of a ba...

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Abstract

The present invention discloses a three-dimensional multiple-point type touch screen and a control method thereof. The three-dimensional multiple-point type touch screen comprises a touch layer having a top surface and a bottom surface, a pressure sensor array and touch control sensing sensors which are connected to the bottom surface of the touch layer, control units respectively connected with the pressure sensor array and the touch control sensing sensors, and a touch screen housing composed of a base and the periphery; the touch layer is disposed in the touch screen housing; the touch layer and the periphery are directly provided with buffer layers prepared by elastic materials; the control units comprise a touch control behavior control unit, a position acquisition control unit, and a main control unit respectively connected with the touch control behavior control unit and the position acquisition control unit; the position acquisition control unit is used for acquiring the touch control number and touch control positions; and the touch control behavior control unit is used for detecting whether the touch screen is touched or not.

Description

technical field [0001] The invention belongs to the technical field of touch screens, and relates to a three-dimensional multi-point touch screen, in particular to a multi-point touch screen based on a three-dimensional capacitive pressure sensor. Background technique [0002] Capacitive tactile sensors have the advantages of simple structure, low cost, high sensitivity, and good dynamic response, especially the adaptability to harsh conditions such as high temperature, radiation, and strong vibration. However, the output of this type of sensor is generally nonlinear, and the inherent parasitic capacitance and distributed capacitance will affect the sensitivity and measurement accuracy of the sensor. Since the 1970s, with the development of integrated circuit technology, capacitive sensors packaged with miniature measuring instruments have appeared. This new type of sensor can greatly reduce the influence of distributed capacitance and overcome its inherent shortcomings. Ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
Inventor 张婷婷杨云伟吴凤霞
Owner ANHUI TECHN COLLEGE OF MECHANICAL & ELECTRICAL ENG
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