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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.:

US 8884509 B1

PDFFull Text
Expired
Date of Patent:
Nov. 11, 2014

Filed:

Feb. 28, 2012

Optical device, display device, and lighting device

Applicant:

Hideki Matsukura, Kanagawa, JP;

Inventor:

Hideki Matsukura, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Attorneys:

Nixon Peabody LLP

Jeffrey L. Costellia

Primary Examiner:

Nimeshkumar Patel

Assistant Examiner:

Jose M Diaz

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01J 1/62 (2006.01); H01J 63/04 (2006.01); G02B 5/22 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
G02B 5/201 (2013.01); G02B 5/223 (2013.01);
Abstract

A structure with which luminance of light extracted outside is improved in the case where a color filter is used is disclosed below. In an optical device including an optical element and a color conversion unit which light radiated from the optical element (light emitted from the optical element or light passing through the optical element) enters, the color conversion unit has a color filter region in which a color filter layer is provided and a transmissive region having higher transmittance per unit area than the color filter region.

Find Patent Forward Citations

Matsukura, Hideki. (2014). Optical device, display device, and lighting device (U.S. Patent No. 8884509). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8884509

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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