CONDENSING TYPE COMPLEX OPTICAL SHEET

摘要

PURPOSE: A condensing type complex optical sheet is provided to show brightness characteristics capable of accomplishing in one or more optical sheets while having a wide viewing angle. CONSTITUTION: A condensing type complex optical sheet(1) comprises a base material layer(11) and a structural layer(12). The structural layer is formed on one side of the base material layer. A plurality of stereoscopic structures is arranged on the structural layer. The height of the plurality of stereoscopic structures is 1 to 50micrometers. The plurality of stereoscopic structures comprises a first optical sheet(10) and a second optical sheet(20). The first optical sheet is formed into a square pillar shape of a trapezoidal cross-section. The second optical sheet is attached on the structural layer of the first optical sheet.