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:
Sep. 15, 2009
Filed:
Mar. 01, 2005
John F. Conley, Jr., Camas, WA (US);
David R. Evans, Beaverton, OR (US);
Wei Gao, Vancouver, WA (US);
Yoshi Ono, Camas, WA (US);
John F. Conley, Jr., Camas, WA (US);
David R. Evans, Beaverton, OR (US);
Wei Gao, Vancouver, WA (US);
Yoshi Ono, Camas, WA (US);
Sharp Laboratories of America, Inc., Camas, WA (US);
Abstract
A device and a fabrication method are provided for an EL device with a nanotip-contoured phosphor layer. The method comprises: forming a bottom electrode with nanotips; forming a phosphor layer overlying the bottom electrode, having irregularly-shaped top and bottom surfaces; and, forming a top electrode overlying the phosphor layer. The bottom electrode top surface has a nanotip contour, and the phosphor layer irregularly-shaped top and bottom surfaces have contours approximately matching the bottom electrode top surface nanotip contour. In one aspect, a contoured bottom dielectric is interposed between the bottom electrode and the phosphor layer, having top and bottoms surfaces with contours approximately matching the nanotip contour. Likewise, a top dielectric may be interposed between the top electrode and the phosphor layer, having a bottom surface with a contour approximately matching the contour of phosphor layer top surface.