Patent ID: 8144293
Filing Date: 2012-03-27
Classification: G02F,H04N

Abstract:
1. A liquid crystal display apparatus comprising: a liquid crystal display device having a screen region on which a plurality of pixels for controlling light transmission are arranged in a matrix; a surface light source which irradiates illumination light toward the screen region of the liquid crystal display device; a first substrate and a second substrate arranged between the liquid crystal display device and the surface light source so as to face each other; first retardation layers which give a phase difference of ½ of a wavelength to a ray of transmission light, and which are arranged on a predetermined region of a facing surface of the first substrate facing toward the second substrate; second retardation layers which give a phase difference of ½ of a wavelength to a ray of transmission light, and which are arranged on a facing surface of the second substrate facing toward the first substrate so as to avoid a region which overlaps with the first retardation layers; a polarizing film arranged between the second substrate and the surface light source; and a facing distance changing device which changes a distance between the first substrate and second substrate.