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:
Apr. 12, 2016
Filed:
Dec. 18, 2013
Applicant:
Amazon Technologies, Inc., Reno, NV (US);
Inventors:
Jerry Yee-Ming Chung, Los Altos, CA (US);
Siddharth Gupta, San Bruno, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/344 (2013.01); G02B 26/005 (2013.01);
Abstract
A display includes a lightguide having an array of light extraction features that can be actively controlled to direct varying amounts of light received from one or more light sources arranged at the edge of the display. The light extraction features include two fluids with different refractive indices. The relative positions of the fluids in each light extraction feature are controlled, e.g., by electrowetting, to control the amount of light directed toward the display.