Patent ID: 9024960
Filing Date: 2015-05-05
Classification: G09G

Abstract:
1. An image display apparatus comprising pixels each one of which is composed of a plurality of subpixels, wherein each pair of the plurality of subpixels, which corresponds to each of liquid crystal elements, is provided with: a light source unit which is capable of adjusting an output light amount; a first polarizing unit which extracts a component of linearly polarized light from an output light of the light source unit; a polarization direction rotating unit which rotates a polarization direction, by an angle of rotation determined by a control unit, of the linearly polarized light extracted by the first polarizing unit in accordance with orientation angle control for the liquid crystal element; a horizontal direction polarizing unit which is provided corresponding to one of the pair of the plurality of subpixels and which extracts a light component having a horizontal polarization direction from the linearly polarized light having the polarization direction rotated by the polarization direction rotating unit; and a vertical direction polarizing unit which is provided corresponding to the other of the pair of the plurality of subpixels and which extracts a light component having a vertical polarization direction from the linearly polarized light having the polarization direction rotated by the polarization direction rotating unit, the image display apparatus further comprising: the control unit which acquires a target luminance value of each of the subpixels on the basis of an inputted image signal and which controls the output light amount of the light source unit and the angle of rotation of the polarization direction brought about by the polarization direction rotating unit so that a luminance value of each of the subpixels is the target luminance value.