Patent ID: 6850219

Claim:
A display device comprising a display module which determines a plurality of n (n is an integer equal to or more than 2) pieces of pixels as belonging to one block unit, selects the plurality of pixels in each block unit at the same time and displays a picture image by adding one or a plurality of specific patterns each having different spatial frequencies of each block unit; a display control unit which controls the display module; a picture image signal generation unit which generates picture image signals; and a computing circuit which generates the specific patterns each having different spatial frequencies while weighting the same based on the picture image signals for every block unit; wherein the computing circuit is a means for generating n pieces of specific patterns each having different spatial frequencies which are weighted based on the picture image signals for every block unit, and the display module is a means for displaying a picture image by adding Np (which is an integer smaller than n) pieces of the specific patterns; and, a compression rate regulation unit which modifies the number of pieces Np of the specific patterns to be applied.