Patent ID: 7429968
Filing Date: 2008-09-30
Classification: G09G

Abstract:
1. A method for driving an image displaying apparatus for expressing image signals of multiple gradations by dividing one field duration into a plurality of primary subfields with different gradation levels, said method comprising the steps of: dividing each one of said primary subfields into “2n” secondary subfields whose gradation level weighting is equal to each other, where “n” is a natural number; forming two secondary subfield groups so that each of said two secondary subfield groups includes a plurality of secondary subfields of different gradation level weightings in such a manner that “n” secondary subfields obtained by the division belong to each of said two secondary subfield groups; and arranging said secondary subfield groups symmetrically with respect to the center of one field duration, and symmetrically arranging said secondary subfields, whose gradation level weighting is equal to each other, with respect to the center of one field duration.