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:
Dec. 17, 2019
Filed:
Aug. 12, 2019
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Kwang Yong Oh, Ansan-si, KR;
Ho Jun Byun, Ansan-si, KR;
Hyuck Jun Kim, Ansan-si, KR;
Ki Bum Nam, Ansan-si, KR;
Su Yeon Kim, Ansan-si, KR;
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Abstract
A light-emitting diode package includes a light-emitting diode chip disposed in a housing, a first phosphor configured to emit green light, and a second and a third phosphor configured to emit red light. White light is configured to be formed by a synthesis of light emitted from the light-emitting diode chip, the first phosphor, the second phosphor, and the third phosphor. At least one of the second and third phosphor is a nitride based phosphor that includes at least one of MSiN, MSiON, and MSiN, where M is one of Ca, Sr, Ba, Zn, Mg, and Eu.