Patent ID: 11955048
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A method of driving a display device, the method comprising:
determining whether a stain image signal corresponding to a stain image requiring dithering is included in an input image signal;
when the stain image signal is included in the input image signal, reading out dithering patterns, which correspond to the stain image signal, from among a plurality of dithering patterns, each of which is displayed in a unit area on a display panel, and generating a compensation dithering pattern by a random number table and the read dithering patterns; and
outputting a correction image signal through the stain image signal and the compensation dithering pattern,
wherein the stain image is displayed in a stain area of the display panel, and the stain area includes a plurality of unit areas,
wherein the random number table includes a plurality of unit cells respectively corresponding to the plurality of unit areas included in the stain area and includes a plurality of area random numbers allocated to each of the plurality of unit cells.