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:
Aug. 20, 2019
Filed:
Dec. 05, 2016
Applicant:
Clearink Displays, Inc., Fremont, CA (US);
Inventors:
Bram M. Sadlik, Vancouver, CA;
Rob Hannebauer, Vancouver, CA;
Thomas Johansson, Coquitlam, CA;
Steven Gou, Vancouver, CA;
Assignee:
CLEARink Displays, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G02B 5/02 (2006.01); G02F 1/167 (2019.01);
U.S. Cl.
CPC ...
G02B 5/0231 (2013.01); G02F 1/167 (2013.01); G02F 2201/34 (2013.01);
Abstract
A textured surface on the inward side of the high refractive index transparent front sheet in a reflective image display may lead to a display with a wider viewing angle. The textured surface may be in a random or a patterned array and may comprise microstructures that exhibit total internal reflection and Fresnel reflections. Electrophoretically mobile particles of similar size to the microstructures may improve coverage on the front sheet and improve frustration of TIR leading to darker dark states.