| 摘要 |
PROBLEM TO BE SOLVED: To provide a positioning mark using a computer generated hologram which is composed of dot units containing various information relating to detection of positions in the reproduced information and which functions as a sensor mark for positioning with high accuracy, and to provide a display body the base body of which can be accurately positioned by using the above positioning mark. SOLUTION: In the positioning mark composed of a plurality of dots and formed on the surface of a flat base material, the dot consists of a computer generated hologram in which the information relating to the arrangement position of the dot is recorded. COPYRIGHT: (C)2004,JPO
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