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:
May. 04, 2010
Filed:
Sep. 23, 2000
Zili LI, Barrington, IL (US);
Jon Schindler, Chicago, IL (US);
Robert Akins, Palatine, IL (US);
George Valliath, Buffalo Grove, IL (US);
Zili Li, Barrington, IL (US);
Jon Schindler, Chicago, IL (US);
Robert Akins, Palatine, IL (US);
George Valliath, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A liquid crystal device comprises a cholesteric liquid crystal material interposed between a transparent front plate and a back plate. The cholesteric liquid crystal material is switchable between a transparent state and a reflective state in response to an electric field applied in a first direction. In the reflective state the material reflects light characterized by a first wavelength when no electric field is applied. Electrodes are provided for applying an electric field lied to the cholesteric liquid crystal material in the reflective state in a second direction distinct from the first direction. In this manner the cholesteric liquid crystal material is altered to cause the material to reflect light characterized by a second wavelength different from the first wavelength. A display device may thus be produced having pixels capable of a wide range of colors, thereby achieving a multicolored image for the display.