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特許 係属中 A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers.[1] Some touchscreens use an ordinary or specially coated gloves to work while others use a special stylus/pen only.