Stress compensation system, stress compensation method, and apparatus using the same

A method for generating a stress profile for a display device, the method comprising:

• sampling a compensated display data to produce a plurality of sampled pixel data for a plurality of pixels disposed in a block of spatially contiguous pixels, the block of spatially contiguous pixels including a pixel;
• producing a quantized unbiased average stress value for the pixel using the plurality of sampled pixel data, the producing of the quantized unbiased average stress value including adding a dither value;
• and
• updating a stress profile using the quantized unbiased average stress value.

A stress profile system comprising:

• sampling circuitry that samples a compensated display data to produce a plurality of sampled pixel data for a plurality of pixels disposed in a block of spatially contiguous pixels, the block of spatially contiguous pixels including a pixel;
• stress circuitry that produces stress values of each of the plurality of sampled pixel data;
• and
• averaging circuitry that produces a quantized unbiased average stress value for the pixel using the stress values of the plurality of sampled pixel data, the producing of the quantized unbiased average stress value including adding a dither value to an average stress value.