Operation input device and touch panel
Abstract:
An operation input device according to an embodiment includes a substrate, a protection film, and an adhesive agent. The substrate vibrates at an ultrasound frequency, and receives a touch input operation. The protection film is disposed on the substrate on the side of an operation surface. The adhesive agent is provided to a plurality of locations between the substrate and the protection film, and the protection film is bonded to the substrate by the adhesive agent.
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