OPTICAL SHEET, AND A BACKLIGHT ASSEMBLY AND LIQUID-CRYSTAL DISPLAY DEVICE COMPRISING THE SAME

摘要

The present invention provides an optical sheet, and a backlight assembly and liquid-crystal display device comprising the same. An optical sheet comprises a transparent base material and further comprises at least one three-dimensional patterned layer respectively located on one surface and the other surface of the transparent base material. The optical sheet according to the present invention and backlight assemblies and liquid-crystal display devices which comprise the optical sheet not only have a complex function whereby light is refracted, focused and diffused by means of a single optical sheet but they also do not require any separate masking film or protective film and are outstanding in terms of cost savings, productivity and workability, and they allow greater compactness in liquid-crystal display devices.