Patent ID: 7808575

Claim:
A matrix-type liquid crystal display device, comprising: a liquid crystal panel comprising: a pair of substrates disposed to face each other with at least one of the pair of substrates having an electrode; a liquid crystal layer interposed between the pair of substrates; a pair of polarizing plates disposed to sandwich the liquid crystal layer, each having a polarizing film and a protective film provided directly or indirectly on at least one surface of the polarizing film; and an optically compensatory film disposed in at least one of spaces between the liquid crystal layer and the pair of polarizing films; a backlight comprising a light source; a first optical member having a light-condensing property; and a second optical member having a surface scattering function, wherein the second optical member having a surface scattering function is a light-scattering film comprising: a transparent support; and at least a light-scattering layer directly or indirectly on the transparent support, and wherein in the light-scattering film, assuming that when nearly parallel light rays are made incident on a surface of the light-scattering film at an incident angle of 5°, a reflectance for an angle θ in a light-receiving part measured in a plane containing a film normal line and an incident direction is R(θ) and a value obtained by normalizing R(θ) by a reflectance of regular reflection is Rrel(θ) and further that a value calculated from the maximum variation |dRrel(θ)/dθ|max for the angle θ is a scattering coefficient A (formula 1), a reflection coefficient B (formula 2) calculated from the scattering coefficient A and a 5° specular reflectance Rs is from 1.5 to 4.5: Scattering coefficient A = 1 /|dRrel (θ)/ d θ|max (Formula 1) Reflection coefficient B = 2.2×log 10( Rs )−7.5×log 10( A )+5.9. (Formula 2)