Resistance-capacitance hybrid pressure sensor and use method thereof

A pressure sensor, resistance and capacitance technology, applied in the field of pressure sensors, can solve the problems of complex structure and high cost, and achieve the effect of high sensitivity, low cost, simple structure and principle

Inactive Publication Date: 2016-05-25
SHANGHAI JIAO TONG UNIV +1
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  • Claims
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Problems solved by technology

The touch function and the pressure detection function are separately integrated...

Method used

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  • Resistance-capacitance hybrid pressure sensor and use method thereof
  • Resistance-capacitance hybrid pressure sensor and use method thereof

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Embodiment Construction

[0021] figure 1 It is a pressure sensor structure and array diagram of a preferred embodiment of the present invention. It can be seen from the figure that a resistance-capacitance hybrid pressure sensor array 1 proposed by the present invention includes a piezoresistive material layer 10, a conductive Electrode layers 110 and 111, substrate layer. The piezoresistive material layer 10 is made of a material whose resistance is sensitive to pressure. The conductive electrode layers 110 and 111 are divided into upper and lower layers, which are respectively located on the upper and lower surfaces of the piezoresistive material layer 10, and on the upper surface of the conductive electrode layer 110 and 111. There is a substrate layer (not shown in the figure) on the lower surface respectively, and the number and pattern of the conductive electrodes in the conductive electrode layers 110 and 111 are determined as required. The conductive electrode layers 110 and 111 can be made o...

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Abstract

The invention discloses a resistance-capacitance hybrid pressure sensor and a use method thereof. The resistance-capacitance hybrid pressure sensor comprises a piezoresistive material layer, a conductive electrode layer and substrate layers, wherein the piezoresistive material layer is made of a resistance pressure sensitive material; the conductive electrode layer is divided into an upper layer and a lower layer which are respectively located on the upper surface and lower surface of the piezoresistive material layer; the substrate layers are respectively arranged on the upper surface and lower surface of the conductive electrode layer. The pressure sensor is prepared into an array applied to electronic equipment, such as, a touch screen, and the like and is used for respectively measuring capacitance and resistance under different application environments, so that the pressure sensor has the advantages of high sensitivity, strong durability, mature technique, and the like of a capacitive touch screen as well as the advantages of capability of detecting pressure, strong water resistance, and the like, of a resistance-type touch screen. The resistance-capacitance hybrid pressure sensor has a sensor structure with two functions, is simple in structure and principle, is capable of utilizing the technique and equipment of the present capacitive touch screen, is low in cost and is fit for wide popularization.

Description

technical field [0001] The invention relates to a pressure sensor, in particular to a resistance-capacitance hybrid pressure sensor and a use method thereof. Background technique [0002] In recent years, the projected capacitive touch technology has been widely used in various consumer electronic products. It supports multi-touch, high sensitivity, strong durability, and mature technology. However, capacitive touch technology has always suffered from poor water resistance. At the same time, the ability to detect pressure, as a new additional function, has also become a must for mid-to-high-end smartphones (such as iPhone 6s) of various brands. The touch function and the pressure detection function are separately integrated into the terminal device as independent modules, which has a complex structure and high cost. [0003] Therefore, those skilled in the art are devoting themselves to developing a resistance-capacitance hybrid pressure sensor and its use method, which ha...

Claims

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Application Information

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IPC IPC(8): G06F3/045G06F3/044G06F3/041
CPCG06F3/0414G06F3/044G06F3/045
Inventor 刘诗雨陆建钢谢汉萍
Owner SHANGHAI JIAO TONG UNIV
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