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:
Oct. 04, 2022
Filed:
May. 06, 2020
E Ink Corporation, Billerica, MA (US);
Stephen J. Telfer, Arlington, MA (US);
Eugene Bzowej, Reading, MA (US);
Kenneth R. Crounse, Somerville, MA (US);
John L. Marshall, Sedgwick, ME (US);
Brandon Macdonald, Melrose, MA (US);
Ziyan Wu, Wayland, MA (US);
Lee Yezek, Watertown, MA (US);
E Ink Corporation, Billerica, MA (US);
Abstract
An electrophoretic medium includes a fluid, a plurality of light scattering charged particles having a first polarity, and a first, second, and third set of particles, each set having a color different from each other set. The first and second particles may have a second polarity opposite to the first polarity, and the mobility of the third set of particles is less than half of the mobility of the light scattering particles, the first set of charged particles, and the second set of charged particles.