Patent · US Active

Method for reducing gamut mapping luminance loss

US12249298B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Xinchao YANG · Shanghai, CN
Nan Zhang · San Diego, US
Yongjun XU · Beijing, CN

Key dates

Filing date	Jul 21, 2020
Grant date	Mar 11, 2025
Priority date	—
Expiry date	Jan 4, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG09G2370/10
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for reducing gamut mapping luminance loss. A gain value of at least one primary color may be reduced in a native color gamut based on an analog technique (e.g., using a DDIC in a display panel) to provide a reduced color gamut that is smaller than the native color gamut. The reduced color gamut may have a same luminance as the native color gamut. One or more colors included in the native color gamut may be mapped via a digital technique (e.g., using a DPU or other processor) to the reduced color gamut. The mapping may be configured to provide a threshold level of color accuracy in the reduced color gamut.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.