Patent ID: 7432881
Filing Date: 2008-10-07
Classification: G09G

Abstract:
1. An image display apparatus for displaying gray-scale images by representing each gray-scale level of the images by an ON/OFF pattern of a set of sub-fields constituting one field, the image display apparatus comprising: an input image conversion unit configured to convert an input image signal into image information; a sub-field information generating unit configured to generate display information for each sub-field, based on the image information output from the input image conversion unit; and an address driver configured to write the display information for each sub-field generated by the sub-field information generating unit, into an image display area, wherein the input image conversion unit converts the input image signal by setting an area composed of a plurality of adjacent pixels in response to the input image signal, then if a luminance difference between main gray-scale levels in the area is no less than a first predetermined value, changing the luminance difference to no less than a second predetermined value.