Patent ID: 6331862
Filing Date: 2001-12-18
Classification: G09G,Y10S

Abstract:
An image display device including a display panel having predetermined numbers of pixels defined in horizontal and vertical directions, respectively, and an interpolated-data generation circuit for producing interpolated data in such a manner that when the number of pixels in the horizontal direction of said display panel is greater than the number of pixels in the horizontal direction of an image signal, a plurality of original image data of said image signal at original locations along one horizontal pixel line are directly stored at data storage locations closest to the corresponding original locations, and data for the remaining data storage locations are each calculated from two original image data at locations adjacent to the respective data storage locations and resultant data are stored in the respective remaining data storage locations, wherein said interpolated data generation circuit generates interpolated data such that the data at each said remaining data storage location is given as the sum of one of the two original image data adjacent to said each remaining data storage location multiplied by a factor and the other one of said two original image data multiplied by a factor, said factors being set such that the difference between the maximum and minimum expansion ratios of the image data obtained after the interpolation relative to the corresponding image data before the interpolation becomes less than 25% of said maximum expansion ratio.