Microsoft Technology Licensing, LLC

Scott Robert Piecuch

Ying Zheng

Nobuyuki Suzuki

Kyle William Hershey

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.

Correcting imagery with differential applied scalars

Display devices, display systems, backlight assemblies, and methods described herein provide compound backlights with edge lighting. In an aspect, the backlight includes a waveguide, first lights, and an array layer. The first lights are arranged along an edge of the waveguide. Each of the first lights transmits light into the waveguide. The array layer is coupled to the waveguide and comprises a reflective layer and second lights. The reflective layer reflects the light transmitted by the first lights into the waveguide. The second lights are arranged between the waveguide and the reflective layer. Each of the second lights transmits light into the waveguide layer through the first surface. In a further aspect, the second lights are oriented away from the waveguide and toward the reflective surface. In another aspect, a compound backlight includes a reflective surface, arranged between a waveguide and second lights, that reflects a portion of received light.

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Scott Robert Piecuch