| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a coordinate reader capable of enhancing reading accuracy of coordinates by reducing influence of noise. SOLUTION: A writing panel main body 20 is constituted by laminating and integrating a writing sheet 21 with a writing surface 21a, a platy panel 22, a sheet 24 on which a loop-like pattern 23 is printed, a platy supporting panel 25 and a platy back panel 26 in order. The panel 22 is formed as thickness of 1.0 mm by non-conductive materials such as acrylic resin, ABS (acrilonitrile- butadiene-stylene copolymer), PC (polycarbonate). Thus, since the influence to be given to voltage to be generated on the loop-like pattern 23 by the noise is reduced, the reading accuracy of the coordinates is enhanced.</p> |
