Composite electrophoretic particles and variable transmission films containing the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12130531
APP PUB NO 20230148203A1
SERIAL NO

18092747

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Abstract

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An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.

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Patent Owner(s)

Patent OwnerAddress
E INK CORPORATION1000 TECHNOLOGY PARK DRIVE ATTN IP DEPARTMENT BILLERICA MA 01821-4165

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anseth, Jay William Canton, US 55 393
Harris, George G Woburn, US 61 1785
Herb, Craig A Medford, US 46 3588
Paolini,, Jr Richard J Framingham, US 185 5850
Park, Jin-Gyu Lexington, US 5 67
Romanowsky, Mark Benjamin Cambridge, US 8 16
Smith, Jillian Dorchester, US 13 13
Widger, Peter Carsten Bailey Nashua, US 20 103

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