Patent · US Active

Method and apparatus for edge lit displays

US8773477B2 · kind B2 · utility

8Cited by

7References

29Claims

0Family size

Assignee

Dolby Laboratories Licensing Corporation · US

Inventors

Gopal Erinjippurath · San Francisco, US
John Gilbert · Beverly Hills, US

Key dates

Filing date	Sep 15, 2010
Grant date	Jul 8, 2014
Priority date	—
Expiry date	May 8, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG09G2320/0242
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Edge lit displays are lit via a set (or individual) lighting elements. Each element projects light onto, for example, a zone which is then utilized directed as a backlight toward an LCD panel. An amount of light incident on any area (e.g., pixel) of the LCD panel (or SLM/series of SLMs) is calculated based on a sum of contributions from each zone. A similar process may be utilized for other lighting configurations. An amount of modulation performed by the LCD panel is then calculated based at least in part on lighting from the zones which may include brightness and varying levels of color content.

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