Patent · US Active

Display including backlight operable in 2D and 3D modes

US7903183B2 · kind B2 · utility

4Cited by

5References

36Claims

0Family size

Assignee

SHARP KABUSHIKI KAISHA · JP

Inventors

Adrian Marc Simon Jacobs · Reading, GB
Allan Thomas Evans · Richland, US
Grant Bourhill · Stow-on-the-Wold, GB

Key dates

Filing date	Jan 14, 2005
Grant date	Mar 8, 2011
Priority date	—
Expiry date	Oct 5, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/133614
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A display comprises a backlight (30, 45-48) and a spatial light modulator (1) such as a liquid crystal device for modulating light from the backlight (30, 45-48). The backlight has a light-output surface (45) with a first set of regions in the form of parallel evenly spaced strips (48). In a multiple-view mode of the display, these strips (48) emit light whereas the remainder of the output surface (45) is dark. In a single-view mode of operation of the display, the whole of the output surface (45) emits light substantially evenly across the display area of the modulator (1).

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