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 7737434 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 15, 2010

Filed:

Nov. 22, 2005
Applicants:

Kenji Shinozaki, Chiba, JP;

Kenzo Hanawa, Chiba, JP;

Tsuyoshi Kato, Chiba, JP;

Yoshiaki Takahashi, Chiba, JP;

Inventors:

Kenji Shinozaki, Chiba, JP;

Kenzo Hanawa, Chiba, JP;

Tsuyoshi Kato, Chiba, JP;

Yoshiaki Takahashi, Chiba, JP;

Assignee:

Showa Denko K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 35/24 (2006.01); H01L 29/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides light emitting diode illumination source having excellent properties as an illumination source such as a flat spectral distribution in the wavelength region from green to red and a sufficient emission intensity in the red region, comprising a light emitting diode having multiple peaks with a half-value width of 20 nm or more within a range from 480 to 700 nm in a spectral distribution, wherein the minimum of the intensities of the valleys between the peaks in the wavelength range from 480 to 700 nm is 65% or more of the maximum peak intensity in the same range, and an illuminator and a backlight for a liquid crystal display using the illumination source.


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Shinozaki, Kenji. (2010). Light-emitting diode illumination source (U.S. Patent No. 7737434). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7737434

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