| 摘要 |
<p>PURPOSE:To form a coordinate input sheet which can detect and input a depressed position, even when the position on an insulating projection has been depressed, by placing an auxiliary electrode extended in the equipotential direction, in a range for allowing an input error centering around the insulating projection. CONSTITUTION:On an abscissa input sheet 13, a small insulating projection 20 is dispersed and provided uniformly on the upper face of an insulating sheet 14, in order to insulate a part between opposed faces of both coordinate input sheets 12, 13. On both sides centering around the insulating projection 20, a correcting electrode 16 is provided in an adjacent state, and this adjacent position is set within a range for allowing an input error in case the center of the insulating projection 20 has been depressed. Even when a depressed position of writing pressure corresponds onto the insulating projection, and the depressed position is shifted to its periphery by the projection 20, as a result, at least one correcting electrode 16 position on both sides of this projection 20 is depressed, and its position can be detected exactly as the depressed position within an allowable range of an input error.</p> |
