Convex surface shaped electrostatic capacitance type pressure sensor used in electronic devices
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United States of America Patent
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Jan 21, 2025
Grant Date -
Feb 9, 2023
app pub date -
Dec 25, 2020
filing date -
Jan 6, 2020
priority date (Note) -
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Abstract
A pressure sensor has a convexly curved surface shape and includes: a capacitive sensor electrode layer including a plurality of sensing parts; a first reference electrode layer having elasticity and facing a first surface of the sensor electrode layer; a second reference electrode layer having elasticity and facing a second surface of the sensor electrode layer; an elastic layer having elasticity and provided between the first reference electrode layer and the sensor electrode layer; and a gap layer having elasticity and provided between the second reference electrode layer and the sensor electrode layer. The sensor electrode layer includes: a curved part; and a plurality of extension parts extending from a concavely curved side of the curved part. The extension parts include the sensing parts.
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