| abstract |
(57) [Summary] [Problem] To provide a retardation sheet capable of sensing (stereoscopically) a three-dimensional image without depending on an observation position, and a method of manufacturing the same. And a three-dimensional display device using the same. SOLUTION: This is a retardation sheet having a first region and a second region having different slow axis directions or fast axis directions, respectively, wherein the polymer constituting the sheet contains a photoisomerizable substance. Phase difference sheet. |