| abstract |
A method of manufacturing a raw material of an optical laminated body capable of condensing diffused light into parallel light and functioning as a collimator with high productivity, an optical laminated body, a backlight unit for a liquid crystal display device using the optical laminated body, and a liquid crystal display. Provide equipment. A cholesteric liquid crystal layer (61G, 61G) having a collimator function and capable of condensing diffused light from a light source used in combination into parallel light on a long quarter-wave plate (62). , 61B are continuously laminated and integrated, a method for producing a raw material of an optical laminate, an optical laminate obtained by cutting the raw material obtained by this method, and a backlight unit for a liquid crystal display device having the optical laminate are provided. , And a liquid crystal display device having the backlight unit. [Selection diagram] FIG. |