| 摘要 |
<p>PURPOSE: A touch display system is provided to emit the invisible light area in a light emitting unit of a touch device and blocks the light of visible light in a camera, thereby detecting the touch location more accurately. CONSTITUTION: A light emitting unit radiates light of an invisible ray area if a touch sensing unit reacts to the contact on a screen of an image display device(50). A camera(40) photographs the light of the invisible light area. An information processing device(30) calculates coordinate on the screen of the image display device of the light from the photographed image data of a camera. The information processing device recognizes the light as a touch about the calculated coordinate.</p> |
