Touch panel

A touch panel comprising:

• a substrate;
• a plurality of data output lines disposed on the substrate;
• a plurality of gate lines disposed on the substrate so as to intersect the data output lines;
• a display area comprising a plurality of display pixels disposed on the substrate, each of the display pixels comprising a light emitting circuit and being disposed adjacent a corresponding intersection of the data output lines and the gate lines;
• a plurality of photosensor circuits disposed in the display area, each of the photosensor circuits being disposed adjacent a corresponding intersection of the data output lines and the gate lines;
• a horizontal driving circuit selecting sequentially the data output lines;
• a vertical driving circuit supplying scan signals to the gate lines;
• and
• a comparison circuit that is connected with the horizontal driving circuit and compares an output of one of the photosensor circuits with a predetermined standard.

A touch panel comprising:

• a substrate;
• a plurality of data output lines disposed on the substrate;
• a plurality of gate lines disposed on the substrate so as to intersect the data output lines;
• a display area comprising a plurality of display pixels disposed on the substrate, each of the display pixels comprising a light emitting circuit and being disposed adjacent a corresponding intersection of the data output lines and the gate lines;
• and
• a plurality of photosensor circuits disposed in the display area,
• wherein the photosensor circuits are configured to be scanned so as to identify positions of the display area in which corresponding photosensor circuits do not detect external light incident on the display area.

A touch panel comprising:

• a substrate;
• a plurality of data output lines disposed on the substrate;
• a plurality of gate lines disposed on the substrate so as to intersect the data output lines;
• a display area comprising a plurality of display pixels disposed on the substrate, each of the display pixels comprising a light emitting circuit comprising a drive transistor, an organic electroluminescent element and a selection transistor;
• a plurality of photosensor circuits disposed in the display area, each of the photosensor circuits comprising thin film transistors each connected with a corresponding data output line or a corresponding gate line, and
• a sensitivity adjustment circuit provided for each of the photosensor circuits and adjusting a light detecting sensitivity of a corresponding photosensor circuit,
• wherein the photosensor circuits are configured to be scanned so as to identify positions of the display area in which corresponding photosensor circuits do not detect external light incident on the display area.

A touch panel comprising:

• a substrate;
• a display area comprising a plurality of display pixels disposed on the substrate;
• a plurality of photosensor circuits disposed in the display area;
• a horizontal driving circuit and a vertical driving circuit that drive the photosensor circuits;
• and
• a comparison circuit that is connected with the horizontal driving circuit and compares an output of one of the photosensor circuits with a predetermined standard.

A touch panel comprising:

• a substrate;
• a plurality of data output lines disposed on the substrate;
• a plurality of gate lines disposed on the substrate so as to intersect the data output lines;
• a display area comprising a plurality of display pixels disposed on the substrate, each of the display pixels being disposed adjacent a corresponding intersection of the data output lines and the gate lines;
• and
• a plurality of photosensor circuits disposed in the display area,
• wherein the photosensor circuits are configured to be scanned so as to identify positions of the display area in which corresponding photosensor circuits do not detect external light incident on the display area.