Patent ID: 7649510
Filing Date: 2010-01-19
Classification: G09G

Abstract:
1. A plasma display apparatus, comprising a plasma display panel including a plurality of address electrodes; an inverse gamma correction section for inverse gamma-correcting an image signal inputted from an exterior; a halftone section for dividing a plurality of pixels adjacent to each other, which a subordinate bit of a fraction bit of the inverse gamma corrected image signal by the inverse gamma correction section is allocated to, into at least two or more types, performing an error diffusion among the subordinate bit of the fraction bit of the pixels corresponding to the pixels of one type (A error diffusion type) in each frame, and using different type (B error diffusion type) of pixels consecutively in a plurality of consecutive frames, and performing a dithering of a superior bit of the fraction bit using two types of dither mask patterns; and a subfield mapping section for mapping the image signal which is halftone processed on the corresponding subfield, wherein the A error diffusion type matches one type of the dither mask patterns and the B error diffusion type matches the other type of the dither mask patterns.