Patent · US Active

WSS utilizing LCOS arrays comprising rectangular pixels

US11656515B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

II-VI DELAWARE, INC. · US

Inventors

Julian Armstrong · Sydney, AU
Luke Stewart · Wilmington, US
Glenn Wayne Baxter · Wilmington, US
Jonathan Plumridge · Sydney, AU

Key dates

Filing date	Jun 25, 2021
Grant date	May 23, 2023
Priority date	—
Expiry date	Jun 25, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/356
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A liquid crystal on silicon (LCOS) device includes a silicon substrate and a pair of electrodes including an upper and a lower electrode. The lower electrode is mounted to the silicon substrate and includes a two dimensional array of pixels extending in both a first and second dimension. LCOS device also includes a liquid crystal layer disposed between the upper and lower electrodes and configured to be driveable into a plurality of electrical states by drive signals provided to the pixels of the lower electrode. The pixels are rectangular in profile having longer sides in the first dimension than in the second dimension. Further, the two dimensional array includes a pixel pitch that is greater in the first dimension than in the second dimension.

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