| 摘要 |
<p>PURPOSE:To improve the productivity of design by entering lines or characters in a display board by a writing utensils, detecting the entered contents by a lower input board, processing the detected contents by a CPU, and displaying the locus of the writing utensils on the display board. CONSTITUTION:The input board 31 constituting an input means consists of a magnetic sensing element group formed like a plate and is superposed to the lower side of the display board 22 consisting of a liquid crystal board to form a united board of front and rear sides. The writing utensils 32 annexed to the board 31 is formed by a magnetic material matched with the characteristics of the board 31. Since the input board 31 and the display board 22 are constituted so as to be superposed to each other, the locus or the like of the writing utensils 32 is detected through the board 31 arranged under the board 22 by plotting a graphic on the board 22 by means of the utensils 32 or pointing out a point on the board 31. The graphic processed and indicated by the CPU is directly displayed on the board 22.</p> |
