OPTICAL TOUCH INPUT DEVICE AND DRIVING METHOD FOR THE SAME

摘要

PURPOSE: An optical touch inputting apparatus and a method for operating the apparatus are provided to prevent optical interference generated in sensor parts by successively operating the light source and the sensor part. CONSTITUTION: Infrared emitting elements(110a to 110h) are arranged at the adjacent first side and second side of a display panel. A lens part(223) is arranged at the third side and fourth side of the display panel. Sensor parts include pixels and match the pixels to the first side and the second side in order to receive light reflected from the lens part by pixels. A touch controller applies a light ignition controlling signal which successively ignites the infrared emitting elements. The light ignition controlling signal alternately operates odd-numbered elements and even-numbered elements.