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. 10, 2015
Filed:
May. 03, 2011
Jiaying MA, Cottage Grove, MN (US);
Hassan Sahouani, Hastings, MN (US);
Feng Bai, Woodbury, MN (US);
Vadim N. Savvateev, St. Paul, MN (US);
Jesus R. Ramos, Tucson, AZ (US);
Hugo B. Montano, Tucson, AZ (US);
Jiaying Ma, Cottage Grove, MN (US);
Hassan Sahouani, Hastings, MN (US);
Feng Bai, Woodbury, MN (US);
Vadim N. Savvateev, St. Paul, MN (US);
Jesus R. Ramos, Tucson, AZ (US);
Hugo B. Montano, Tucson, AZ (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Optical shutter (), e.g. fort-stereoscopic shutter glasses, is disclosed. The optical shutter includes a light source, e.g. LCD, CRT or plasma display, that emits polarized light () that has a first polarization state, a first polymeric substrate () that receives the polarized light and transmits the polarized light without substantially changing the first polarization state of the polarized light, a second polymeric substrate () that faces the first polymeric substrate, and an optical stack () that is disposed between the first and second polymeric substrates. The optical stack includes first and second electrically conductive layers (), first and second oriented chromonics alignment layer (), and an oriented liquid crystal layer ().