Patent ID: 8144397
Filing Date: 2012-03-27
Classification: B29D,B32B,G02B,G03B

Abstract:
1. A laminated sheet, in which a plurality of screen sheets are stacked, the laminated sheet comprising: a multilayer sheet A including two or more layers with different linear expansion coefficients; and a single sheet B which is a sheet other than the multilayer sheet A, wherein at least in a temperature range from 10° C. to 30° C., expressions (*1), (*2) and (*3) are satisfied, and, when all sheets are stacked, either (i) or (ii) below applies: where (i) a viewing-side sheet is convex on an image light source side, and an image light source-side sheet is convex on the viewing side, and (ii) the viewing-side sheet and the image light source side-sheet are both convex on the image light source side, and a curvature of the viewing-side sheet is greater than a curvature of the image light source-side sheet, where, Δθ δ δ δ E E t t