| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a transparent coordinate input device and a transparent composite material capable of suppressing the deterioration of visual confirmability by the reflection of display light while suppressing interference fringes in an input operation. <P>SOLUTION: A number of ridges 45 extending in one direction are formed on the surface of a first transparent resistance film 31. The ridges 45 are, for example, protruding parts having triangular sectional shapes, and one set of an inclined surface 46a and an inclined surface 46b is alternately formed on the surface of the first transparent resistance film 31. A number of such narrow and slender inclined surfaces 46a and 46b generate extremely minute interference fringes which cannot be visually confirmed by human eyes on the surface of the resistance film 31 or the inclined surfaces 46a and 46b. The interference fringes become minute so as not to be visually confirmable by setting the pitch P of the ridges 45 sufficiently minute, and the presence of the interference fringes is apparently hardly recognized. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
