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. 08, 1990
Filed:
Apr. 12, 1988
Terence J Nelson, New Providence, NJ (US);
Bell Communcations Research, Inc., Livingston, NJ (US);
Abstract
A flat panel display is disclosed which comprises a row backlight assembly, e.g. a vacuum fluorescent device, and a column shutter assembly, e.g. a ferroelectric liquid crystal device, in front of the row backlight for forming luminous images. Color is achieved in the display by providing varying phase retardation of light passing through the ferroelectric shutter assembly. This is done by selectively varying the thickness of the ferroelectric liquid crystal at adjacent columns so as to correspond to the primary colors required to form a color display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile