Patent ID: 7158129
Filing Date: 2007-01-02
Classification: G06F,G09G

Abstract:
1. An input device, comprising: a plurality of output lines; a plurality of output voltage supply lines to which an output voltage is applied; a plurality of scanning lines including first and second scanning lines, the plurality of output lines and the plurality of scanning lines being provided in a matrix manner; a first active element having a first control terminal, a first terminal connected to the output line, and a second terminal connected to the output voltage supply line, the first control terminal being supplied an input signal so that a conductivity between the first and second terminals is controlled; a photo-sensor having a first terminal which is connected to the first control terminal of the first active element; an electrostatic capacitance, connected in parallel to the photo-sensor, having a terminal on an opposite side of the first control terminal, to which a holding voltage is supplied; and a third active element having a third control terminal connected to a second scanning line adjacent to the first scanning line, a first terminal connected to the first scanning line, and a second terminal connected to the first control terminal of the first active element, the third control terminal being supplied an input signal so that a conductivity between the first and second terminals of the third active element is controlled.