| 摘要 |
An electroluminescent light emitting sheet 10 has a light-emitting layer 14 comprising electroluminescent elements, and a pair of spaced, parallel, interdigitated, comb-like electrodes 12a & 12b which are formed on the rear of the display at an angle with respect to the edges of the light-emitting sheet (see fig. 2). An ac voltage is applied between the electrodes, wherein the display is configured so that when an electrically conductive material 30 is placed covering an area of the front surface of the display, that area is caused to emit light. The inclination of the electrode direction allows an increased probability of reliable illumination of the area covered by the conductive material, when the area has the form of characters or drawings, particularly those comprising generally thin orthogonal lines, parallel to the display edges. |
