Patent · US Active

Polarization recycling backlight, method and multiview display employing subwavelength gratings

US11256022B2 · kind B2 · utility

3Cited by

16References

20Claims

0Family size

Assignee

LEIA Inc. · US

Inventors

Francesco Aieta · Palo Alto, US
Xuejian Li · Menlo Park, US
Thomas Hoekman · Menlo Park, US
David A. Fattal · Menlo Park, US

Key dates

Filing date	Jul 12, 2020
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Aug 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/07
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A polarization recycling backlight and a multiview display employ a polarization-selective scattering feature configured to preferentially scatter out a first polarization component of guided light and a polarization conversion structure configured to convert a portion of a second polarization component of the guided light into the first polarization component. The polarization conversion structure includes a subwavelength grating.

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