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Microsoft patents display fix that adjusts pixels based on neighbors

Microsoft has been granted a patent for a method to correct image quality on screens where individual pixels have degraded over time. The system calculates how much extra electrical current each pixel needs to reach its target brightness, then adjusts these values based on the position and needs of nearby pixels to prevent any single pixel from being overloaded.

Why it mattersThis technology could help maintain consistent brightness and color accuracy in displays, such as OLED screens, as they age and individual pixels wear out unevenly.

In the filing’s own words

Disclosed is the differential application of scalars to compensate pixel degradation. Input image data is associated with a commanded luminance at each of a plurality of pixels. A degradation value is determined for each pixel. Based on the degradation value, an elevated drive current is determined to produce commanded luminance at the pixel. A required scalar is determined for each pixel to hold the elevated drive current from exceeding a drive current threshold. An applied scalar for each pixel is determined for each pixel to be applied to the elevated drive current. For at least some pixels, the applied scalar for a first pixel is based at least on [1] the required scalar of a second pixel and [2] a spatial relationship between the first pixel and the second pixel. Applied scalars are then used to output corrected imagery.

What exactly they claim (claim 1)

1. A storage machine for a computing system, comprising: one or more storage devices having instructions stored thereon executable by the computing system to: receive input image data for display on a display device, wherein the input image data includes a plurality of commanded luminance values corresponding to a plurality of pixels of the display device; determine, for each of the plurality of pixels of the display device, a degradation value indicating an extent to which the pixel is deficient in its ability to provide a reference luminance value; determine, for each of the plurality of pixels of the display device, based at least on the degradation value corresponding to the pixel, an elevated drive current needed to cause the pixel to produce its commanded luminance value; determine, for each of the plurality of pixels of the display device, a required scalar for the elevated drive current to prevent a drive current threshold from being exceeded when the pixel is being driven; determine, for each of the plurality of pixels of the display device, an applied scalar to be applied to the elevated drive current of the pixel when the pixel is being driven, wherein for at least some of the plurality of pixels, the applied scalar for a first pixel is based at least on [1] the required scalar of a second pixel and [2] a spatial relationship between the first pixel and the second pixel; and for each of the plurality of pixels of the display device, output the applied scalar to be applied to a drive current for the pixel of the display device.

Facts

Company
Microsoft (Microsoft Technology Licensing, LLC)
Official title
Correcting imagery with differential applied scalars
Patent number
US12769498B2
Application number
19328490
Filed
Sep 15, 2025
Granted
Oct 20, 2026
Inventors
3
Claims
20

Classified under

G06F 3/1407 Physics & computingG09G 2320/0233 Physics & computingG09G 2320/043 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.