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:
Sep. 30, 2014
Filed:
Jun. 12, 2013
Applicant:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Inventors:
Jurgen Hans Daniel, Washington, DC (US);
Michael Bassler, Mainz, DE;
Assignee:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G02B 26/02 (2006.01); G02B 26/00 (2006.01); G02B 5/24 (2006.01); G02B 5/20 (2006.01); B82B 1/00 (2006.01);
U.S. Cl.
CPC ...
G02B 26/004 (2013.01); G02B 5/201 (2013.01); G02B 5/24 (2013.01); Y10S 977/742 (2013.01); B82B 1/008 (2013.01);
Abstract
An embodiment is a display unit. The display unit includes a substrate layer, a layer of colored fluid on the substrate layer, and a transparent actuator element on the layer of the colored fluid. The layer of colored fluid has a thickness and a color. The transparent actuator element modulates the thickness of the colored fluid upon activated by a force such that the colored fluid is changed from a first state to a second state or vice versa. The modulated thickness provides a variable optical density of the colored fluid.