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:
Jun. 04, 2024
Filed:
May. 31, 2023
Applicant:
E Ink Corporation, Billerica, MA (US);
Inventor:
Donal Martin O'Keeffe, Parteen, IE;
Assignee:
E Ink Corporation, Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E06B 9/24 (2006.01); G02F 1/167 (2019.01); G02F 1/1675 (2019.01);
U.S. Cl.
CPC ...
E06B 9/24 (2013.01); G02F 1/167 (2013.01); G02F 1/1675 (2019.01); E06B 2009/2464 (2013.01); G02F 2001/1678 (2013.01);
Abstract
A variable light transmittance sheet comprises a first transparent electrode and a second transparent electrode spaced apart from the first electrode, and between the electrodes an electrophoretic cell containing an electrophoretic ink and one or more non-planar solid polymer elements. In an embodiment, the electrophoretic ink includes charged particles in a suspending fluid, and 75% or more by mass of the suspending fluid is an organosilicone or an aliphatic hydrocarbon and the solid polymer is a fluorinated elastomeric polymer.