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. 22, 2009
Filed:
Feb. 02, 2005
Applicant:
Makoto Katase, Suwa, JP;
Inventor:
Makoto Katase, Suwa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A display device is provided that includes a display panel having a light-emitting unit for emitting light according to predetermined display data, an elongated optical waveguide unit which guides the light incident from the light-emitting unit and has a core layer and an addressing unit for selecting the light from the light waveguide unit according to the predetermined display data. The core layer is composed of light scattering liquid crystal, and the addressing unit allows the light to be emitted from a predetermined part of the optical waveguide unit by using the light scattering operation of the light scattering liquid crystal.