| 摘要 |
PURPOSE: To simplify the constitution of a coordinate input device. CONSTITUTION: On the display surface of an EL display 21, a figure, etc., is drawn with an input pen 22 provided with a photodetection part atop. At this time, the EL display 21 is made to illuminate in dot sequence and the position of the input pen 22 is detected as coordinate information according to the timing of the illumination of the EL display 21 and the timing of the illumination detection of the input pen 22.
|
