Patent ID: 6333727
Filing Date: 2001-12-25
Classification: G09G

Abstract:
An image display device, comprising:a memory for storing a display level of each pixel in a display screen; anda control section for comparing a display level of a pixel stored in the memory with a display level of the pixel for a next display, and for updating or not updating the display level of the pixel stored in the memory based on a comparison result,wherein when the comparison result indicates a slight variation in the display level, the control section does not update the display level of the pixel stored in the memory,wherein a display level of each pixel is represented by a bit string; andthe control section compares a first bit string representing the display level of the pixel stored in the memory with a second bit string representing a display level of the pixel for a next display, and for updating the display level of the pixel stored in the memory if a predetermined number of upper bits of the first bit string differ from the predetermined number of upper bits of the second bit string.