Resistance-capacitance hybrid pressure sensor and use method thereof

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...

AI Technical Summary

Problems solved by technology

The touch function and the pressure detection function are separately integrated into the terminal device as independent modules, with complex structure and high cost

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