Patent ID: 8248382

Claim:
An input device comprising: a plurality of scanning electrodes that extend in a Y direction and are arranged at predetermined intervals in an X direction orthogonal to the Y direction; a plurality of Y scanning electrodes that extend in the X direction, and are arranged at predetermined intervals in the Y direction; a detection electrode that forms capacitances together with all the scanning electrodes in a detection region; a driver that supplies pulse driving signals to the scanning electrodes; and a detecting unit that detects the scanning electrode approached by an operating body on the basis of a detection signal obtained from the detection electrode and the supply time of the driving signals to the scanning electrodes, wherein the driver simultaneously supplies a first driving signal and a second driving signal having rise and fall times that are opposite to those of the first driving signal to different scanning electrodes within a same scanning time to the scanning electrodes, the first and second driving signals being pulse signals, the first driving signal is sequentially supplied to the adjacent scanning electrodes in the detection region and the second driving signal is supplied to the scanning electrodes other than scanning electrodes disposed at both sides of the scanning electrode supplied with the first driving signal, within the same scanning time, capacitances are formed between the detection electrode and all the Y scanning electrodes in the detection region, and the driver supplies the first driving signal and the second driving signal to the Y scanning electrodes, similar to the scanning electrodes.