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US 2018/0293958 A1Published application
Content-based statistics for ambient light sensing
AssigneeApple Inc.
InventorsGuy Cote, Mahesh B. Chappalli, Venu M. Duggineni
Life of this patent
Estimating the term…
Abstract
An electronic display includes a display side and an ambient light sensor configured to measure received light received through the display side. The electronic display also includes multiple pixels located between the display side and the ambient light sensor. The multiple pixels are configured to emit display light through the display side.
Claims20
An electronic device comprising:
- a display panel comprising a plurality of pixels each configured to emit light with a plurality of regions;
- an ambient light sensor arranged behind the display panel to measure ambient light;
- and
- an ambient light sensor compensator configured to estimate how much light detected by the ambient light sensor can be attributed to the emitted light based at least in part on weighting data corresponding to pixels of the plurality of pixels that are closer to the ambient light sensor more heavily than data corresponding pixels of the plurality of pixels that are farther from the ambient light sensor according to which region of the plurality of regions the respective pixels are in.
1 more element
A method comprising:
- dividing a plurality of pixels in an active area of a display into a plurality of regions;
- capturing ambient light measurements from received light using an ambient light sensor located behind the active area of the display relative to where the display is to be viewed, wherein the received light comprises display light from the active area and ambient light from outside the display;
- determining summations of pixel luminance for at least one region of the plurality of regions in a video frame from image data;
- and
- estimating how much light detected by an ambient light sensor behind the plurality of pixels can be attributed to light emitted from the display.
2 more elements
An electronic device comprising:
- a display having an active area comprising at least one region comprising a plurality of pixels each configured to emit light;
- an ambient light sensor configured to measure luminance of light received at the ambient light sensor, wherein the light comprises light from outside of the display and light emitted from the display;
- and
- an ambient light sensor compensator configured to:
- acquire luminance measurements from the ambient light sensor;
- acquire pixel brightness values for at least a portion of the display;
- determine pixel brightness values in image data for each pixel of the plurality of pixels corresponding the at least one region of the display based at least in part a distance of a respective region of the at least one region from the ambient light sensor;
- and
- compensate the luminance measurements based at least in part on the determined pixel brightness values for light emitted by the plurality of pixels.
6 more elements
Dependencies are inferred from the claim text.