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. 25, 2025

Filed:

May. 06, 2024
Applicant:

Seoul Semiconductor Co., Ltd., Ansan-si, KR;

Inventors:

Masahiko Yamakawa, Yokohama, JP;

Noriaki Yagi, Yokohama, JP;

Kumpei Kobayashi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/64 (2006.01); F21S 2/00 (2016.01); H01L 25/075 (2006.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/16 (2020.01); H10H 20/80 (2025.01); H10H 20/851 (2025.01); H10H 20/853 (2025.01); H10H 20/854 (2025.01); F21W 131/405 (2006.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H01L 25/0753 (2013.01); F21S 2/00 (2013.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/16 (2020.01); H10H 20/80 (2025.01); H10H 20/851 (2025.01); H10H 20/8513 (2025.01); H10H 20/8515 (2025.01); H10H 20/853 (2025.01); H10H 20/854 (2025.01); F21W 2131/405 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08);
Abstract

A light emitting device including a substrate, a first light emitter to emit light having a first color temperature, and a second light emitter to emit light having a second color temperature, in which the first light emitter has a first converter including first phosphors and a first resin, each first phosphor having different half—value widths, the second light emitter has a second converter including second phosphors and a second resin, each second phosphor having different peak wavelengths, at least one phosphor of the first converter has a half-value width of 33 nm to 110 nm, a distance between peak wavelengths of at least two phosphors of the second converter is 150 nm or less, and at least one phosphor of the first converter has a particle size of 5 um to 50 um.


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