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. 29, 2022
Filed:
Sep. 09, 2019
Applicant:
E Ink Corporation, Billerica, MA (US);
Inventors:
George G. Harris, Woburn, MA (US);
Richard J. Paolini, Jr., Framingham, MA (US);
Assignee:
E Ink Corporation, Billerica, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/167 (2019.01); G02F 1/1335 (2006.01); G02F 1/133 (2006.01); G02B 5/20 (2006.01); G02F 1/13357 (2006.01); G02B 1/14 (2015.01); G02F 1/1676 (2019.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); G02B 1/14 (2015.01); G02B 5/201 (2013.01); G02F 1/1336 (2013.01); G02F 1/13318 (2013.01); G02F 1/133514 (2013.01); G02F 1/1676 (2019.01); G02F 2202/12 (2013.01);
Abstract
A reflective color display that can be addressed from the front (viewing surface side) of the display with a light source, such as a projector, LED, or laser. The display comprises (in order) a color filter array, a transparent electrode, an electro-optic medium, a photoconductive material, and a rear electrode. The color displays of the invention are useful for large format color signage, such as billboards and wayfinding.