| 摘要 |
A touch panel includes: a transparent substrate on which surface acoustic wave is propagated; a transmission/reception unit that is formed in peripheral regions on the transparent substrate, each two of the peripheral regions facing each other, and transmit and receive the surface acoustic wave; a detecting unit that detects the location of an object touching a predetermined operation area; and a sheet member that faces the transparent substrate, with a space layer being interposed in between, and has first protrusions formed on a substrate-facing surface that faces the transparent substrate. In this touch panel, the substrate-facing surface of the sheet member is not brought into contact with the transparent substrate when an object does not touch the operation area, and the substrate-facing surface of the sheet member is brought into contact with the transparent substrate when the object touches the operation area.
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