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:
May. 13, 2008

Filed:

Sep. 08, 2004
Applicants:

Kenichi Kodama, Kanagawa, JP;

Seiichi Inoue, Kanagawa, JP;

Ryoichi Yamamoto, Kanagawa, JP;

Kazuo Sanada, Kanagawa, JP;

Koichi Kimura, Kanagawa, JP;

Tsutomu Yokouchi, Kanagawa, JP;

Inventors:

Kenichi Kodama, Kanagawa, JP;

Seiichi Inoue, Kanagawa, JP;

Ryoichi Yamamoto, Kanagawa, JP;

Kazuo Sanada, Kanagawa, JP;

Koichi Kimura, Kanagawa, JP;

Tsutomu Yokouchi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

The display device includes a display portion having a cavity portion surrounded by wall surfaces, at least one part of the wall surfaces being formed of a transparent member and forming a structural color forming surface provided with fine asperities having predetermined regularity, a liquid being hermetically sealed to have a liquid surface in the cavity portion and having a refractive index approximately equivalent to that of the transparent member, an actuator giving a disturbance to the liquid to bring the liquid into contact with the forming surface and a control unit controlling driving of the actuator to switch reflection and transmission characteristics of light when the light is incident into the forming surface, thereby controlling color display using reflected light formed by the forming surface.


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