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A sensor, a manufacturing method thereof, a panel, and a recognition device are provided. The sensor comprises a substrate, a first electrode layer on the substrate, a second electrode layer on a side of the first electrode layer away from the substrate, and a piezoelectric layer between the first electrode layer and the second electrode layer. An orthographic projection of a top surface of the piezoelectric layer facing away from the first electrode layer on the substrate covers an orthographic projection of a bottom surface thereof facing the first electrode layer on the substrate.