| 摘要 |
PROBLEM TO BE SOLVED: To allow a user to easily perceive a setting value by using a tactile sense of a human in an input device using a touch panel to improve the operability.SOLUTION: A touch panel has circular arc-like projections formed thereon, and input can be performed by moving a finger along the projections. Since the projections are not formed in a straight line, but in a circular arc shape, a user can estimate the current setting value through the sensation of the position of a contact point of the projections and finger, and thereby the user can perform a setting operation without the need of gazing the touch panel, while seeing another display part. The present invention can be applied to smartphones or tablet PCs when projections are provided to a protective film. |
