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:
Nov. 01, 2005

Filed:

Apr. 19, 2002
Applicants:

Mitsuo Ohashi, Tokyo, JP;

Fumio Kawaguchi, Tokyo, JP;

Katsue Ueda, Osaka, JP;

Motohiro Kurisu, Kanagawa, JP;

Inventors:

Mitsuo Ohashi, Tokyo, JP;

Fumio Kawaguchi, Tokyo, JP;

Katsue Ueda, Osaka, JP;

Motohiro Kurisu, Kanagawa, JP;

Assignee:

Eizo Nanao Corporation, Ishikawa, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G003/28 ;
U.S. Cl.
CPC ...
Abstract

A two-dimensional monochrome bit face display has a luminance resolution that is equal to or higher than that of a CRT monitor. In one implementation, a two-dimensional monochrome bit face display has a bit face in which each pixel is constituted by m sub-pixels and neutral density filters mounted on the m sub-pixels of a respective pixel have light transmittances proportional to values ½where n is an integer. In another implementation, mask filters are mounted on the m sub-pixels and have windows with light transmittances that are proportional to values ½. Alternatively, areas of the m sub-pixels are set in the same proportion. The luminance of each sub-pixel is electronically controlled to improve the luminance resolution of the bit face display.


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