| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a touch panel device for preventing an area available for a touch pen or the like from being made smaller and increasing the speed of light shielding detection scanning. <P>SOLUTION: The touch panel device comprises a plurality of light emitters 7 and a plurality of light receivers 8 arrayed at constant pitch intervals along the sides of a rectangular area in horizontal directions 1a and 1b and vertical directions. A coordinate value of a light shielding position in the area is detected according to the result of light shielding detection scanning of continuous light shielding detection by the light receivers 8. The plurality of light emitters 7 and the plurality of light receives 8 are stacked in two upper and lower layers. The individual arrangement positions in the upper array are shifted by half a pitch from the individual arrangement positions in the lower array. The light shielding detection scanning using the lower array of light receivers 8 and the light shielding detection scanning using the upper array of light receivers 8 are performed simultaneously. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
