TOUCH SCREEN DISPLAY AND METHOD FOR OPERATING THE SAME

摘要

PURPOSE: A touch screen display having a photo sensor-integrated panel detects light from a projected image of a touch object on a screen to perform an information input. Also, a TSD may detect light emitted from a light emitting object such as a light pen and the like to perform an information input. CONSTITUTION: A TSD(Touch Screen Display) comprising: a panel(100) comprising a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel; a touch position deriving unit(210) to derive a touch position of the object based on output signals of the photo sensors; and a light emission control unit(220) to derive a probability of a plurality of previous touch positions derived by the touch position deriving unit, predict a next touch position after the plurality of previous touch positions according to the probability, and control at least one of the light emitting devices in a light emission area comprising the next touch position to emit light.