CPC G09G 3/3406 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/16 (2013.01)] | 19 Claims |
1. A display driving device comprising:
a brightness calculator for calculating first brightness data corresponding to a first resolution and second brightness data corresponding to a second resolution less than the first resolution using input image data;
an offset calculator for calculating an offset on the basis of the first brightness data and the second brightness data;
an input image converter for converting the input image data into input image data to which the calculated offset has been applied;
a first data output unit for generating output image data for a first panel using the converted input image data and outputting the generated output image data; and
a second data output unit for generating output brightness data for a second panel using the second brightness data and outputting the generated output brightness data,
wherein the first panel has the first resolution, includes a plurality of first unit pixels, and each of the plurality of first unit pixels includes a plurality of subpixels having different colors,
wherein the second panel has the second resolution and includes a plurality of second unit pixels, and
wherein the offset calculator includes a second offset calculator for calculating a second offset on the basis of a brightness value of a first edge unit pixel determined based on a difference in brightness values from adjacent first unit pixels from among the plurality of first unit pixels, an expected brightness value of a second edge unit pixel disposed at a position corresponding to the first edge unit pixel from among the plurality of second unit pixels, and an edge intensity.
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