Patent ID: 7674506

Claim:
A direct backlight type liquid crystal device comprising: a backlight source, a light diffusion sheet which has a protective film on a surface thereof which faces the backlight source or on both surfaces thereof as desired, a light ray adjusting film, and a liquid crystal panel, wherein the light diffusion sheet is formed from a composition comprising: (A) 80 to 99.995 wt % of aromatic polycarbonate resin (component A), and (B) 0.005 to 20 wt % of polymeric fine particles (component B) having an average particle diameter of 0.01 to 50 μm, and (C) 0.001 to 5 parts by weight of at least one heat stabilizer (component C) selected from the group consisting of a phosphate compound (component C-1), a phosphite compound (component C-2) and a phosphonite compound (component C-3), and (D) 0 to 0.5 parts by weight of ultraviolet absorber (component D), and (E) 0.0001 to 3 parts by weight of fluorescent whitening agent (component E), and (F) less than 0.001 parts by weight of hindered phenol compound (component F), based on 100 parts by weight of the total of the components A and B, and the light diffusion sheet has a thickness of 0.5 to 10 mm, wherein the protective film is an organic polymer film containing 0.1 to 50 wt % of ultraviolet absorber (component D p ) and having a thickness of 0.1 to 500 μm, and the organic polymer is an acrylic resin or a polycarbonate resin.