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:
Jun. 03, 1997
Filed:
Mar. 01, 1995
William Borland, Cary, NC (US);
Ryosuke Kuwada, Tokyo, JP;
Noboru Nishii, Tokyo, JP;
Carl B Wang, Chapel Hill, NC (US);
Yasuo Yamamoto, Tokyo, JP;
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The invention relates to an improved method for making a plasma display apparatus comprising a plurality of stripe-shaped electrodes arranged in a matrix, a dot-shaped discharge area or pixel area at each solid intersection between the stripe-shaped electrodes and a fluorescent film formed on each of the discharge areas and adapted to emit light when the fluorescent film is excited by ultraviolet rays from the corresponding discharge area wherein the improvement is fabricating a ridge on one of the substrates utilizing a negative-working or positive-working diffusion patterning process.