Local adaptive backlight control
US12205552B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 20, 2022 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | May 5, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of operating a backlight comprises: receiving an input video; analyzing characteristics of the input video within a plurality of predefined spatial windows having one or more light emitting diodes to generate required light levels; generating backlight drive levels per spatial window to reduce the backlight in a first set of the plurality of the predefined spatial windows; and driving the backlight according to the generated backlight drive levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.