Patent · US Active

Method and arrangement for optimizing a luminance characteristic curve

US7576750B2 · kind B2 · utility

23Cited by

0References

10Claims

0Family size

Assignee

EIZO CORPORATION · JP

Inventors

Wolfgang Eckhardt · Lörrach, DE
Andreas Kaercher · Weingarten, DE
Uwe Nagel · Karlsruhe, DE
Hartmut Schulz · Karlsruhe, DE

Key dates

Filing date	Aug 23, 2004
Grant date	Aug 18, 2009
Priority date	—
Expiry date	Jan 17, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/58
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method and an arrangement for optimizing the luminance characteristic curve for a display system using a lookup table. Digitized video levels are supplied to this lookup table and are optimized using correction values stored in the lookup table. With suitable means, the luminance characteristic curve can be easily adapted to standards and/or custom specifications. The memory requirement is low, since it is not necessary to provide different lookup tables for different ambient luminosities or selected reproduction models (curves).

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