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:
Jan. 04, 2011
Filed:
Feb. 08, 2008
Jim Zhuang, Kildeer, IL (US);
Tomohiro Ishikawa, Evanston, IL (US);
Robert Polak, Lindenhurst, IL (US);
Jim Zhuang, Kildeer, IL (US);
Tomohiro Ishikawa, Evanston, IL (US);
Robert Polak, Lindenhurst, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An electronic device () includes a display () and an LC shutter (), at least a portion of which is operatively positioned over the display (). The LC shutter () provides switching between a transparent state and a diffusive state with high image integrity, and high transmission in the transparent state. In one embodiment, the electronic device () further includes control logic () operatively coupled to the LC shutter () to provide control signals () to the LC shutter () to effect the transparent state. The LC shutter () includes a first dichroic polarizer (), such as a broadband dichroic polarizer, an LC cell (), and a diffusive reflective polarizer (). The LC cell () is interposed between the first dichroic polarizer () and the diffusive reflective polarizer (). Related methods are also set forth.