Timing controller and driving method thereof

A method for driving a timing controller, comprising:

• receiving first image data;
• generating a degradation quantity for each of a plurality of pixels in a display panel based on predetermined degradation quantities corresponding to grey scales, respectively, and a grey scale of the first image data in which the degradation quantity is not yet compensated;
• generating an accumulated degradation quantity based on the degradation quantity for each of the pixels;
• generating feedback image data based on the accumulated degradation quantity;
• and
• generating second image data, in which the degradation quantity is compensated, based on the first image data and the feedback image data,
• wherein, when the accumulated degradation quantity is increased, a degree of compensation of the degradation quantity of the first image data is decreased,
• wherein an absolute value of the feedback image data when the accumulated degradation quantity is a first accumulated degradation quantity level is greater than an absolute value of the feedback image data when the accumulated degradation quantity is a second accumulated degradation quantity level higher than the first accumulated degradation quantity level,
• wherein the feedback image data is based on accumulated degradation quantity of all of the pixels, in which degradation quantities of all of the pixels are all added,
• wherein the accumulated degradation quantity increases over time, and
• wherein the feedback image data is inversely proportional to the accumulated degradation quantity over time.

An apparatus, comprising:

• first logic configured to receive first image data and to generate a degradation quantity for each of a plurality of pixels based on predetermined degradation quantities corresponding to grey scales, respectively, and a grey scale of the first image data in which the degradation quantity is not yet compensated;
• second logic configured to generate an accumulated degradation quantity based on the degradation quantity for each of the pixels;
• third logic configured to generate feedback image data based on the accumulated degradation quantity;
• and
• fourth logic configured to generate second image data for output to a display,
• wherein the second image data corresponds to a compensated degradation quantity based on the first image data and the feedback image data,
• wherein, when the accumulated degradation quantity is increased, a degree of compensation of the degradation quantity of the first image data is decreased,
• wherein the feedback image data is based on accumulated degradation quantity of all of the pixels, in which degradation quantities of all of the pixels are all added,
• wherein the accumulated degradation quantity increases over time, and
• wherein the feedback image data is inversely proportional to the accumulated degradation quantity over time.