Patent ID: 7652659
Filing Date: 2010-01-26
Classification: G06F

Abstract:
1. An information input device comprising: two relatively slidable plate-shaped input members held between fingertips or parts of fingers of a hand to slide relative to each other; and an information producing portion for producing input information in accordance with at least a relative position or a relative movement of the plate-shaped input members, wherein one of the two relatively slidable plate-shaped input members is provided with an opening portion surrounded by at least one side surface; and the opening portion of the one plate-shaped input member is configured to allow an operator's fingertip or a part of his/her finger to directly contact with a slidable contact face of the another plate-shaped input member through the opening portion so as to sense a relative positional displacement of the two plate-shaped input members as a change in the fingers' sense, and the opening portion is further configured to allow the operator's fingertip or a part of his/her finger to contact with the at least one side surface.