US Patent 11295631 Character and shape presentation device

Disclosed is a character and shape presentation device, more specifically, an electro-vibrating device including a zoned electro-vibrating panel. The electro-vibrating device includes a motor for generating rotational power; a rotation unit rotated by the rotational power generated by the motor and provided in shape of a cylinder; and an electro-vibrating panel anodized on a face of the rotation unit to provide different tactile sensation patterns to a user.