Patent ID: 8456492
Filing Date: 2013-06-04
Classification: G09G

Abstract:
1. A display device which has (a) a display section comprising a plurality of pixels arranged in a matrix form, each pixel comprising (i) a light emitting element for emitting light according to a current amount and (ii) a pixel circuit for controlling an electric current applied to the light emitting element according to a video signal, (b) scanning lines which supply selection signals for selecting the pixels for emitting light to the pixels in a predetermined scanning cycle, and (c) data lines which supply the video signals to the pixels, the display device comprising: an average value calculating section configured to input video signals having a linear property and calculates an average value of levels of the video signals having a linear property per pixel by successively acquiring signal levels of a plurality of colors in a plurality of regions of the display section from a plurality of frames; an average value memory section configured to sequentially store the average value calculated by the average value calculating section; a still image determining section configured to determine a degree of still image for each region of the display section based on a difference between the average value stored in the average value memory section and a last average value; a coefficient calculating section configured to calculate coefficients for reducing luminance based on the determined degrees of still image of each region of the display section; and a coefficient multiplying section configured to multiply the video signals by the coefficients calculated by the coefficient calculating section, wherein,