| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a two-dimensional coordinate pattern, a display device of the coordinate pattern, and a reader of the coordinate pattern. <P>SOLUTION: A coordinate pattern includes a plurality of pixel blocks which are surrounded by a plurality of first diagonal pixel lines and a plurality of second diagonal pixel lines and in charge of two-dimensional coordinate data at a coordinates position. The respective plurality of pixel blocks include a rotation detection pixel part entering a turn-on state or a turn-off state in a prescribed display pattern so as to detect the angle of rotation and an information display pixel part entering a turn-on state or turn-off state in accordance with Y coordinate data out of two-dimensional coordinate data. The reader of the coordinate pattern photographs a display surface in a photography range, detects a pixel at a crossing position from within a photograph image signal as a reference pixel, and detects X coordinate data and Y coordinate data on the basis of the turn-on and turn-off states of respective read pixels in accordance with the present position of the reference pixel within the photography range. <P>COPYRIGHT: (C)2009,JPO&INPIT |
