Touch panel and coordinate detection method in touch panel

A touch panel comprising:

• a first conductive film divided into regions insulated from each other and connected to a wiring, respectively, wherein the regions include a first region, a second region positioned adjacent to the first region, and a third region, the third region including a main region and an extraction wiring, the main region being located on an inner side of the first conductive film relative to the first region and the second region, the extraction wiring extending from the main region to an outer side of the first conductive film and being located between the first region and the second region and connecting the main region and the wiring corresponding to the third region;
• a second conductive film facing and located away from the first conductive film;
• and
• a control unit configured to output fourth coordinates based on first coordinates and second coordinates, in a case where the first conductive film contacts with the second conductive film in the first region, the second region and the extraction wiring of the third region, and each of differences between first coordinates and second coordinates, and a each of differences between the first coordinates and third coordinates are within given ranges,
• the first coordinates being coordinates of a point where the first conductive film contacts with the second conductive film in the first region, the second coordinates being coordinates of a point where the first conductive film contacts with the second conductive film in the second region, and the third coordinates being coordinates of a point where the first conductive film contacts with the second conductive film in the extraction wiring.

A coordinate detection method in a touch panel comprising:

• determining whether a first conductive film, which is divided into multiple regions insulated from each other, contacts with a second conductive film, which faces and is located away from the first conductive film, in all regions;
• detecting one of an X-coordinate and a Y-coordinate of a point where the first conductive film contacts with the second conductive film by applying a voltage to a pair of electrodes provided to the second conductive film, without discharging the voltage applied to the pair of electrodes, when the first conductive film contacts with the second conductive film, the electrodes facing each other;
• discharging the voltage applied to the pair of electrodes after detecting one of the X-coordinate and the Y-coordinate in all regions;
• and
• detecting the other of the X-coordinate and the Y-coordinate by applying a voltage to another pair of electrodes facing each other in all regions after discharging the voltage applied to the pair of electrodes,
• wherein the another pair of electrodes is perpendicular to the pair of electrodes and provided to the second conductive film.