MULTI TOUCH SCREEN FOR HIGH SPEED SAMPLING

摘要

PURPOSE: A multi-touch screen capable of high speed sampling is provided to enable a camera having low frame rate to sense quick touch by successively photographing images at high speed. CONSTITUTION: A screen(10) receives the touch of a user and displays an image. An infrared ray light source(20) is embedded on a screen. Infrared cameras(31-33) are installed from the screen and photographs the image of the screen. A control unit(40) successively operates the infrared cameras from images which are obtained from the infrared cameras.