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:
Jan. 31, 2023
Filed:
Jan. 24, 2022
E Ink Corporation, Billerica, MA (US);
Donal Martin O'Keeffe, Clare, IE;
Timothy O'Keeffe, Clare, IE;
E Ink Corporation, Billerica, MA (US);
Abstract
A switchable light modulator device () comprises a first substrate () and a second substrate () with opposite major surfaces spaced apart by one or more polymer structures that each comprise two or more parts and define wall features () for a plurality of cavities (), the cavities sealing a fluid () or gel in discrete volumes. Each of the one or more polymer structures comprises a mould part () bonded to the first substrate and defining a recess (), and a cast part () filling the recess and bonded to the second substrate and a surface of the recess, the cast part being defined by the surface of the recess and the second substrate replicating the surfaces of both.