| 摘要 |
It is an object of the present invention to provide a liquid crystal display device with a back-side prism type backlight in order to prevent a stain in an image displayed and attain high brightness. A liquid crystal display device comprises: a first substrate; a second substrate arranged on the viewer side compared with the first substrate; a liquid crystal held between the first substrate and the second substrate; a light guide plate arranged on the back surface of the first substrate; a polarization plate arranged between the first substrate and the light guide plate; a prism sheet arranged between the light guide plate and the polarization plate and having prisms provided on the light guide plate side; a diffusion layer arranged between the prism sheet and the polarization plate; and a light control sheet arranged between the diffusion layer and the polarization plate. The light control sheet rotates the polarization of the light emitted from the diffusion layer.
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