Method of correcting emissive display burn-in

1. A method of correcting burn-in in a display comprising:

determining a maximum cumulative luminance of each pixel within the display based upon a usage of the pixel;

providing a modulation map of the display from the maximum cumulative luminance of each pixel within the display;

transforming the modulation map based upon the maximum cumulative luminance of groups of adjacent pixels to provide a modulation index for each pixel location of the map;

comparing the modulation indexes with a set of threshold values; and

adjusting a luminosity of associated pixels of the display when the modulation index exceeds the threshold,

wherein the step of transforming the map further comprises Fourier transforming the modulation map including phase shifting at least a portion of the transformed map exceeding the threshold by a value of π.

2. The method of correcting burn-in in the display of claim 1 wherein the step of determining the maximum cumulative luminance of each pixel further comprises measuring a time of activation of each pixel.

3. The method of correcting burn-in in the display of claim 1 wherein the step of determining the maximum luminance of each pixel further comprises measuring a time and current of activation of each pixel.

4. The method of correcting burn-in in the display of claim 1 further comprising inverse Fourier transforming the shifted map.

5. The method of correcting burn-in in the display of claim 4 further comprising adjusting a maximum cumulative luminance of at least some pixels of the modulation map based upon a difference in respective values between the modulation map and the shifted map.

6. The method of correcting burn-in in the display of claim 1 further comprising inverting a pixel activation pattern surrounding a predominant display image.

7. An apparatus for correcting burn-in in a display comprising:

means for determining a maximum cumulative luminance of each pixel within the display based upon a usage of the pixel;

means for providing a modulation map of the display from the maximum cumulative luminance of each pixel within the display;

means for transforming the modulation map based upon the maximum cumulative luminance of groups of adjacent pixels to provide a modulation index for each pixel location of the map;

means for comparing the modulation indexes with a set of threshold values; and

means for adjusting a luminosity of associated pixels of the display when the modulation index exceeds the threshold,

wherein the means for transforming the map includes means for Fourier transforming the modulation map, the means for Fourier transforming the map includes means for phase shifting at least a portion of the transformed map by a value of π.

8. The apparatus for correcting burn-in in the display of claim 7 wherein the means for determining the maximum cumulative luminance of each pixel further comprises means for measuring a time of activation of each pixel.

9. The apparatus for correcting burn-in in the display of claim 7 wherein the means for determining the maximum luminance of each pixel further comprises measuring a time and current of activation of each pixel.

10. The apparatus for correcting burn-in in the display of claim 7 further comprising means for inverse Fourier transforming the shifted map.

11. The apparatus for correcting burn-in in the display of claim 10 further comprising means for adjusting a maximum cumulative luminance of at least some pixels of the modulation map based upon a difference in respective values between the modulation map and the shifted map.

12. The method of correcting burn-in in the display of claim 7 wherein the means for adjusting further comprising means for inverting a pixel activation pattern surrounding a predominant display image.