The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2025
Filed:
Oct. 30, 2023
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Nicholas John Diorio, Jr., Duvall, WA (US);
Mengfei Wang, Woodinville, WA (US);
Yuge Huang, Painted Post, NY (US);
Kai-Han Chang, Troy, MI (US);
Lu Lu, Kirkland, WA (US);
Xiayu Feng, Kirkland, WA (US);
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
A device includes a plurality of electrode layers. The device also includes a birefringent medium layer disposed between the plurality of electrode layers. The device also includes at least one alignment structure disposed at a surface of the birefringent medium layer. The birefringent medium layer includes liquid crystal molecules arranged in a plurality of helical twist structures having a helical axis. The plurality of electrode layers are configured to generate an electric field within the birefringent medium layer, and the liquid crystal molecules are aligned via the electric field to be titled with respect to the helical axis.