Pixel leakage and internal resistance compensation systems and methods

1. An electronic device comprising:

an electronic display comprising a plurality of pixels and configured to display an image based at least in part on processed image data, wherein each of the plurality of pixels comprises a plurality of sub-pixels; and

image processing circuitry configured to:

receive first image data for a sub-pixel of the plurality of sub-pixels and second image data for a group of sub-pixels of the plurality of sub-pixels surrounding the sub-pixel, wherein the first image data comprises a luminance value for the sub-pixel, and wherein the second image data comprises luminance values for each sub-pixel of the group of sub-pixels surrounding the sub-pixel; and

determine a compensation value for the luminance value of the sub-pixel based at least in part on the luminance value of the sub-pixel and the luminance values for each sub-pixel of the group of sub-pixels surrounding the sub-pixel, wherein the compensation value is configured to compensate the luminance value for lateral current leakage between the sub-pixel and the group of sub-pixels, wherein determining the compensation value for the luminance value of the sub-pixel comprises determining a plurality of correction values, wherein each correction value of the plurality of correction values is associated with a corresponding leakage path between the sub-pixel and one sub-pixel of the group of sub-pixels, wherein determining a correction value of the plurality of correction values comprises applying a lookup table based on the luminance value of the sub-pixel and a corresponding luminance value of the one sub-pixel of the group of sub-pixels, wherein a first lookup table is applied for a first leakage path comprising the sub-pixel and a first sub-pixel of the group of sub-pixels and a second lookup table is applied for a second leakage path comprising the sub-pixel and a second sub-pixel, and wherein in response to the first sub-pixel being a different color component from the second sub-pixel, the first lookup table is different from the second lookup table.

2. The electronic device of claim 1 , wherein the image processing circuitry is configured to model the lateral current leakage between the sub-pixel and the group of sub-pixels as a plurality of leakage paths, wherein the plurality of leakage paths comprise the first leakage path and the second leakage path.

3. The electronic device of claim 2 , wherein the lateral current leakage for the first leakage path varies based at least in part on the first sub-pixel type and the second sub-pixel type.

4. The electronic device of claim 3 , wherein the sub-pixel type comprises a color component of the sub-pixel.

5. The electronic device of claim 1 , wherein the lookup table is identified based on a sub-pixel type of the sub-pixel and the sub-pixel type of the one sub-pixel of the group of sub-pixels.

6. The electronic device of claim 1 , wherein determining the compensation value for the luminance value of the sub-pixel comprises summing each of the plurality of correction values and the luminance value of the sub-pixel.

7. The electronic device of claim 1 , wherein the image processing circuitry comprises a plurality of lookup tables, wherein the image processing circuitry is configured to:

select the first lookup table and the second lookup table from the plurality of lookup tables.

8. The electronic device of claim 1 , wherein the first lookup table comprises a two-dimensional (2D) lookup table.

9. The electronic device of claim 1 , wherein the electronic display comprises a GRGB display, wherein a pixel of the GRGB display comprises one blue sub-pixel, one red sub-pixel, and two green sub-pixels.

10. A method comprising:

determining, via image processing circuitry, a first sub-pixel type and a first luminance value of a first sub-pixel;

determining, via the image processing circuitry, a second sub-pixel type and a second luminance value of a second sub-pixel;

selecting a lookup table from a plurality of different lookup tables based at least in part on the first sub-pixel type and the second sub-pixel type, wherein different combinations of sub-pixel types correspond to the different lookup tables, wherein the first sub-pixel type comprises a first color component of the first sub-pixel and the second sub-pixel type comprises a second color component of the second sub-pixel;

determining, via the image processing circuitry, a correction value, associated with lateral current leakage between the first sub-pixel and the second sub-pixel, for the first sub-pixel based at least in part on the first sub-pixel type, the second sub-pixel type, and application of the selected lookup table on the first luminance value and the second luminance value, wherein the selected lookup table is configured to output the correction value associated with the lateral current leakage based at least in part on the first luminance value and the second luminance value; and

generating, via the image processing circuitry, a compensated luminance value for the first sub-pixel based at least in part on the correction value with the first luminance value.

11. The method of claim 10 , comprising:

determining, via the image processing circuitry, a third sub-pixel type and a third luminance value of a third sub-pixel; and

determining, via the image processing circuitry, a second correction value, associated with lateral current leakage between the first sub-pixel and the third sub-pixel, for the first sub-pixel based on the first sub-pixel type, the third sub-pixel type, the first luminance value, and the third luminance value, wherein generating the compensated luminance value comprises combining the first luminance value with the correction value and the second correction value.

12. The method of claim 11 , wherein the first sub-pixel and the second sub-pixel are not components of a same pixel.

13. The method of claim 12 , wherein the first sub-pixel and the third sub-pixel are components of the same pixel.

14. The method of claim 10 , comprising generating the plurality of different lookup tables based at least in part on a temperature associated with the first sub-pixel.

15. The method of claim 10 , wherein combining the correction value with the first luminance value comprises adding the correction value with the first luminance value.

16. The method of claim 10 , wherein the first sub-pixel and the second sub-pixel are neighboring sub-pixels of an electronic display.

17. The method of claim 10 , wherein the lookup table comprises a two-dimensional (2D) lookup table.

18. The method of claim 10 , comprising selecting a second order lookup table based at least in part on the first sub-pixel type and a third sub-pixel type of a secondary sub-pixel adjacent to the second sub-pixel and not adjacent to the first sub-pixel.

19. A non-transitory machine readable medium comprising instructions, wherein, when executed by a processor, the instructions cause the processor to:

determine a first sub-pixel type and a first luminance value of a first sub-pixel;

determine a second sub-pixel type and a second luminance value of a second sub-pixel adjacent the first sub-pixel;

identify a first lookup table from a plurality of different lookup tables based at least in part on the first sub-pixel type and the second sub-pixel type, wherein the first lookup table is associated with a first lateral current leakage between the first sub-pixel and the second sub-pixel;

determine a third sub-pixel type and a third luminance value of a third sub-pixel adjacent the first sub-pixel, wherein the first sub-pixel type, the second sub-pixel type, and the third sub-pixel type comprise respective color components for the first sub-pixel, the second sub-pixel, and the third sub-pixel;

identify a second lookup table from the plurality of different lookup tables based at least in part on the first sub-pixel type and the third sub-pixel type, wherein the second lookup table is associated with a second lateral current leakage between the first sub-pixel and the third sub-pixel, wherein in response to the third sub-pixel type being different from the second sub-pixel type the second lookup table is different from the first lookup table; and

determine a compensated luminance value, associated with the first lateral current leakage and the second lateral current leakage, for the first sub-pixel based at least on part on:

application of the first lookup table with the first luminance value and the second luminance value; and

application of the second lookup table with the first luminance value and the third luminance value.