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.

Date of Patent:
Mar. 20, 2007

Filed:

Sep. 16, 2005
Applicants:

Yasunobu Hashimoto, Akashi, JP;

Yoshiho Seo, Akashi, JP;

Naoki Itokawa, Akashi, JP;

Motonari Kifune, Higashimorokata-gun, JP;

Yasushi Ohkawa, Akashi, JP;

Inventors:

Yasunobu Hashimoto, Akashi, JP;

Yoshiho Seo, Akashi, JP;

Naoki Itokawa, Akashi, JP;

Motonari Kifune, Higashimorokata-gun, JP;

Yasushi Ohkawa, Akashi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C 1/00 (2006.01); H01J 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for making a light-emitting display device having a substrate with light-emitting layers on a surface of the substrate and constituting pixels, light emission from the pixels being electrically controlled, and having barriers delimiting at least one side of each respective pixel. A mask pattern is formed on a surface of the substrate, corresponding to the pattern of the barriers to be formed, and the surface is sprayed with sandblasting particles to form grooves having a depth corresponding to a height of the barriers and irregularities producing light scattering on the side walls and bottoms of the grooves, a difference between a maximum height and a minimum height of the irregularities being at least 0.4 mm.


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