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Samsung patents display tech that dims background to save power

Samsung describes a display system that splits an image into 'focus' and 'background' sections to manage energy use. It calculates how much to dim the overall picture and then applies specific adjustments to each section, treating the background differently than the main subject.

Why it mattersThis approach could help TVs and monitors last longer on battery or run cooler by intelligently reducing brightness in less important parts of the screen.

In the filing’s own words

A display device including: a display; and at least one processor connected to the display and configured to control the display device, where the at least one processor is configured to: identify an input image as a plurality of areas, identify a type of each of the plurality of areas by identifying at least one of the plurality of areas as a focus area and by identifying other areas of the plurality of areas as a background area, obtain a global tone mapping curve (TMC) for the input image based on a pixel level reduction amount corresponding to a target power consumption reduction amount, allocate a power consumption reduction amount to each of the plurality of areas based on the type of each of the plurality of areas, obtain a local tone mapping curve for each of the plurality of areas.

What exactly they claim (claim 1)

1. A display device, comprising: a display; and at least one processor connected to the display and configured to control the display device, wherein the at least one processor is configured to: identify an input image as a plurality of areas, identify a type of each of the plurality of areas by identifying at least one of the plurality of areas as a focus area and by identifying other areas of the plurality of areas as a background area, obtain a global tone mapping curve for the input image based on a pixel level reduction amount corresponding to a target power consumption reduction amount, allocate a power consumption reduction amount to each of the plurality of areas based on the type of each of the plurality of areas, obtain a local tone mapping curve for each of the plurality of areas based on the power consumption reduction amount allocated to each of the plurality of areas, and perform image processing on each of the plurality of areas using the global tone mapping curve and the local tone mapping curve such that image processing performed on the plurality of areas identified as the focus area is different from image processing performed on the plurality of areas identified as the background area.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Display device for reducing power consumption, and method for controlling same
Patent number
US12749424B2
Application number
19005481
Filed
Dec 30, 2024
Granted
Sep 29, 2026
Inventors
4
Claims
15

Classified under

G09G 3/2092 Physics & computingG06T 5/92 Physics & computingG09G 2320/066 Physics & computingG09G 2330/021 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.