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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.:

US 5596246 B1

PDFFull Text
Date of Patent:
Jan. 21, 1997

Filed:

Jun. 12, 1995

High contrast tfel display in which light from the transparent phosphor

Applicant:
Inventors:

Russell A Budzilek, Bridgeport, CT (US);

Dominick L Monarchie, Norwalk, CT (US);

Myroslaw Podoba, Wallingford, CT (US);

Richard R Swatson, Trumbull, CT (US);

Assignee:

Northrop Grumman Corporation, Los Angeles, CA (US);

Attorney:

Sutcliff; Walter G.

Primary Examiner:

Anita Pellman Gross

Assistant Examiner:

Walter J Malinowski

Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313502 ; 313506 ; 313509 ;
Abstract

A display system (25) includes an enhanced specularity multi-layer thin film electroluminescent (TFEL) panel (26) and circular polarizer filter (27) which combine to provide a high contrast TFEL display. The enhanced specularity is obtained by increasing the rate the phosphor layer of the panel is deposited which results in a smoother, more specular surface. The increased specularity of the panel (26) provides a darker display background, and therefore higher contrast.

Find Patent Forward Citations

Budzilek, Russell. (1997). High contrast tfel display in which light from the transparent phosphor (U.S. Patent No. 5596246). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5596246

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