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:
Nov. 30, 1993
Filed:
Aug. 26, 1991
Scott A Bottorf, Cedar Rapids, IA (US);
Rockwell International Corporation, Seal Beach, CA (US);
Abstract
A backlighting system for use in generating collimated light for illuminating LCD matrices. The system includes a plurality of lenses arranged in an array on one side of a planar substrate, a plurality of luminescent phosphor dots located on the opposite side of the substrate from the lenses at the focal points of the lens and a mechanism for stimulating the phosphor dots to emit light. The phosphor dots may be responsive to ultraviolet light in which case a fluorescent lamp adapted for emitting ultraviolet light may be used to stimulate the dots to emit visible light. The visible light is then collimated by the lenses and directed for backlighting a display matrix.