| 摘要 |
<p>PURPOSE:To reduce a maintenance cost and to simplify a maintenance job by providing a protecting sheet containing a writing surface onto a coordinate detecting sheet in a freely attachable/detachable way. CONSTITUTION:A resistor sheet 25 is put on an electric conductive sheet 22 on a substrate 21. A protective sheet 30 is put on the surface of the sheet 25. The sheet 30 is obtained by applying a surface treatment to a thin and flexible film base material 31 so that the information can be written by a writing tool and erased by an erasing tool on the surface of the material 31 or by applying a coating material 32. Then the sheet 30 is attached on the surface of the sheet 25 via an adhesive 33 applied on the entire rear surface of the sheet 30. In such a way, the maintenance cost is reduced and at the same time a maintenance job is simplified with an information input device.</p> |
