| 摘要 |
<p>PROBLEM TO BE SOLVED: To operate a portable in formation terminal at a dark place by pressing one optional point at the corner of a position detecting part with a pen, allowing the pen to run to an optional position within a specific range along the surface of the position detecting part from the position and separating the pen to light a light. SOLUTION: A liquid crystal display part 14 is overlap-arranged under the position detecting part 11 being a transparent and plate-like tablet, the surroundings of the parts 11 and 14 are fixed by a housing frame 10 and a housing edge 7 is formed to protrude from the plane of the part 11. Then, a light 13 is arranged at the edge of the part 14 and light emitted from the light 13 is made to pass to the part 11 through a light guiding pipe provided inside of the part 14 to be diverged outside. At the time of separating the pen 9 from the part 11 in this state, the signal thereof and coordinates where the pen 9 is separated are transmitted to a processing part, thereby lighting the light 13.</p> |
