Patent ID: 7663576
Filing Date: 2010-02-16
Classification: G09G

Abstract:
1. A display device comprising: a detector for detecting usage data of each pixel by sampling video data supplied to a display device having a pixel using a light emitting element; a first storage portion for storing a lower bit of accumulated usage data of each pixel; a second storage portion for storing an upper bit of accumulated usage data of each pixel; a first adder for adding the usage data of each pixel detected by the detector to the lower accumulated usage data of each pixel stored in the first storage portion, thereby writing an addition result to the first storage portion as a lower bit of new accumulated usage data; a second adder for adding a carry generated by the addition result of the first adder to the upper bit of the accumulated usage data of each pixel stored in the second storage portion, thereby writing an addition result to the nonvolatile storage portion as an upper bit of new accumulated usage data; and a corrector for generating corrected video data by correcting the video data based on the accumulated usage data stored in at least one of the first storage portion and the second storage portion.