Patent ID: 8477105

Claim:
A display comprising: an electro-optical material arranged between first and second planes facing each other; a first substrate arranged on said first plane and including a thin film transistor and a conductor that affords an electrical signal to said electro-optical material; a first electrically conductive film arranged on said second plane to afford an electrical signal to said electro-optical material; a second electrically conductive film arranged outside an area sandwiched between said first and second planes; a current detection circuit that detects a current on said second electrically conductive film; a control circuit that, during a time period the current is detected by said current detection circuit, applies substantially the same voltage as that applied to said second electrically conductive film to one of said conductor and said first electrically conductive film, which is arranged more proximate to said second electrically conductive film, and sets the other in a floating state, or applies substantially the same voltage as that applied to said second electrically conductive film to both said conductor and said first electrically conductive film; and a detecting unit that detects, based on the current detected by said current detection circuit, whether or not touch has been made by a finger or a pointer and where the touch has been made.