Patent ID: 7786986

Claim:
An image display device comprising: pixels arranged in a shape of a matrix in a display area; optical detecting elements arranged in a shape of a matrix in the display area; X output lines disposed in a horizontal direction; Y output lines disposed in a vertical direction; high voltage power supply lines; low voltage power supply lines; reset lines; a X output scanning circuit; and a Y output scanning circuit, wherein each of the optical detecting elements comprises an optical detection diode, a reset TFT, a X output TFT and a Y output TFT, a path of the optical detection diode is directly connected between one of the high voltage power supply lines and one of the low voltage power supply lines through a source-drain path of the reset TFT, a gate of the reset TFT is directly connected to one of the reset lines; gates of the X output TFT and the Y output TFT are directly connected to one end of the optical detection diode, each of the X output lines is directly connected between a high voltage source terminal and the X output scanning circuit through one of source-drain paths of the X output TFTs, and each of the Y output lines is directly connected between the high voltage source terminal and the Y output scanning circuit through one of source-drain paths of the Y output TFTs.