INPUT DEVICE FOR FOLDABLE DISPLAY DEVICE AND INPUT METHOD THEREOF

摘要

PURPOSE: An input unit of a terminal having a folded display unit is provided to realize control and application of the terminal in a desired angle by creating a proper input signal in the folded state. CONSTITUTION: An electronic pen(200) occurs an ultrasonic signal and an infrared signal. A terminal(100) receives the ultrasonic signal and the infrared signal. The terminal computes coordinate information of an electronic pen. The terminal measures an angle of a folded display unit. The terminal revises an error of the coordinate information by the folded angle of the display unit. The terminal detects the real coordinate information of the electronic pen on the folded display unit.