CONDENSING TYPE OPTICAL SHEET

摘要

PURPOSE: A condensing type optical sheet is provided to improve workability by preventing the generation of the scratch although it does not use the protection film. CONSTITUTION: A structural layer(20) including a plurality of patterns is formed on a base material layer(10). The structural layer is formed to mold with thermosetting resin or ultraviolet hardening-type resin. At least 1 or more patterns of a plurality of patterns, a secondary structure(22) is united on the top of a first structure(21). At least a part of the second structure is projected from the first structure. The center of the second structure locates on the height(h) of 3/4- 5/4 point to the first structure. A curvature radius(b) of the second structure is 1/2 or less to the height of the first structure.