Input device and electronic device using the same

An electronic device comprising:

• an input device including:
• a touch panel including a first resistive membrane and a second resistive membrane;
• an input position detecting unit configured to detect an input position onto the touch panel when the first resistive membrane makes contact with the second resistive membrane, the input position detecting unit being connected with the touch panel electrically;
• an adjacency detecting part configured to detect an adjacency of a user's finger to the touch panel on the basis of an electrostatic capacitance produced between the first and the second resistive membranes and ground, the adjacency detecting part being connected with the touch panel electrically;
• a detection-mode switching control part configured to switch an operating mode of the input device between one condition where the input position detecting unit is operating and another condition where the adjacency detecting part is operating, the detection-mode switching control part being connected with the input position detecting unit and the adjacency detecting part;
• and
• a resistive membrane connecting part configured to electrically connect the first resistive membrane with the second resistive membrane when the adjacency detecting part is operating;
• an on-screen display generating unit configured to generate on-screen display signals, the on-screen display generating unit being electrically connected with the input device;
• a display unit configured to display an image on which an on-screen display based on the on-screen display signals is superimposed, the display unit being electrically connected with the on-screen display generating unit;
• and
• an operation control part configured to allow the on-screen display generating unit to generate the on-screen display signals, the operation control part being electrically connected with the on-screen display generating unit, wherein
• the operation control part allows the on-screen display generating unit to generate the on-screen display signals when the adjacency detecting part of the input device detects an adjacency of a user's finger to the touch panel.