Apple Inc.
Electronic devices having displays with peripheral luminance compensation

Abstract:

An electronic device may have a display. A protective display cover layer for the display may tend to dim pixels near the edge of the display. Control circuitry in the electronic device may boost luminance for pixels in an edge region of a displayed image relative to a center region of the image. This ensures that image brightness does not vary across the image. The control circuitry may include a graphics processing unit, a pixel pipeline implemented in a system-on-chip circuit block, and a display drive circuit block. Luminance compensation may be implemented in the system-on-chip block and/or in the display driver circuit block.