Patent ID: 7801566
Filing Date: 2010-09-21
Classification: G06F,H04M

Abstract:
1. A mobile information terminal comprising: a display device having a display surface disposed on a front surface; a plurality of operation keys operable to detect that each of said operation keys is frilly depressed, said operation keys being disposed on a rear surface located on a reverse side of the front surface on which the display surface of said display device is disposed; a plurality of finger position detecting mechanisms for detecting that a finger of an operator is placed on one of said operation keys even if none of said operation keys is fully depressed, and a control section to which signals from said operation keys and said finger position detecting mechanisms are entered and which can control the operation of said display device, wherein said control section executes a processing operation to cause said display device to display an image showing the arrangement of said operation keys and to change an icon which is included in the image of said arranged operation keys and which corresponds to one of said operation keys on which the operator placed his/her finger when the control section determines, according to an input signal from said finger position detecting mechanisms, that the finger of the operator is placed on said one of operation keys.