Patent ID: 6028587
Filing Date: 2000-02-22
Classification: G09G

Abstract:
A display control device characterized by comprising:gradation information storage means for storing, in correspondence with each display dot of display means constituted by a plurality of display dots, gradation information representing display gradation of the display dot;presence/absence information storage means for storing, with respect to divided regions obtained by dividing a storage region of said gradation information storage means into a plurality of regions, presence/absence information representing a predetermined value in correspondence with each divided region when at least one piece of gradation information stored in the divided regions represents intermediate gradation;presence/absence information write means for writing the presence/absence information in said presence/absence information storage means on the basis of the gradation information stored in said gradation information storage means;detection means for detecting only a divided region, in which at least one piece of stored gradation information represents intermediate gradation, from the divided regions constituting said gradation information storage means on the basis of the presence/absence information stored in said presence/absence information storage means;gradation information read means for loading only gradation information representing intermediate gradation from the divided region detected by said detection means and outputting the gradation information; anddrive means for storing the gradation information output from said gradation information read means and driving and displaying a display dot corresponding to the gradation information in display gradation represented by the gradation information on the basis of the stored gradation information.