Patent ID: 7505052

Claim:
A method of displaying an image using a display pixel comprising at least one subpixel displaying one among four or more colors, the method comprising: adjusting a target phase of a target subpixel using a difference between an absolute luminance value of a color to be displayed by the target subpixel and an absolute luminance value of a color to be displayed by at least one subpixel adjacent to the target subpixel; and obtaining a relative luminance value of the target subpixel based on a relative luminance value of at least one image pixel using a target filter having the adjusted target phase as a center of the target filter, wherein a brightness of the color displayed by the target subpixel corresponds to the obtained relative luminance value of the target subpixel, and the adjusting of the target phase comprises determining a high-luminance filter or a low-luminance filter for the target subpixel to be displayed and the at least one adjacent subpixel to be displayed according to the respective absolute luminance value of the respective subpixel, the high-luminance filter being determined where the absolute luminance value of the respective subpixel is greater than a predetermined value and the low-luminance filter being determined where the absolute luminance value of the respective subpixel is equal to or less than the predetermined value, and where the high-luminance filter is determined for the target subpixel and the low-luminance filter is determined for the at least one adjacent subpixel, shifting the target phase such that a distance between the target phase and the at least one adjacent phase becomes larger, a center of the high-luminance filter determined as the target filter corresponds to the shifted target phase, and the low-luminance filter has the adjacent phase as a center of the low-luminance filter.