Patent · US Active

Reflective color display based on tunable sub-wavelength high contrast gratings

US9733402B2 · kind B2 · utility

3Cited by

0References

23Claims

0Family size

Assignee

University of Southern California · US

Inventors

He Liu · Nanjing, CN
Yuhan Yao · San Jose, US
Wei Wu · Nanjing, CN

Key dates

Filing date	Mar 6, 2015
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Mar 6, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/12
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A sub-pixel unit for a reflective display includes a color filter including a tunable high contrast grating. The tunable high contrast grating reflects light within a first range of wavelengths, and the sub-pixel unit can exist in a first state and a second state, the first state reflecting at least one of (i) light within a different range of wavelengths, and (ii) light of a different intensity level, than the second state.

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