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. 29, 2020
Filed:
May. 28, 2019
Wenbo MA, Shenzhen, CN;
Qiurong Liao, Shenzhen, CN;
Yu LI, Shenzhen, CN;
Kuo-hsin Chang, Chiayi, TW;
Chung-ping Lai, Hsinchu County, TW;
Wenbo Ma, Shenzhen, CN;
Qiurong Liao, Shenzhen, CN;
Yu Li, Shenzhen, CN;
Kuo-Hsin Chang, Chiayi, TW;
Chung-Ping Lai, Hsinchu County, TW;
Graphene Lighting China Limited, Nanjing, CN;
Abstract
A light-emitting diode (LED) emitter and a LED lamp having the same are revealed. The LED emitter includes a first LED chip string, a second LED chip string, a substrate, two electrodes, a high-color-temperature phosphor layer and a low-color-temperature phosphor layer. The substrate where the first LED chip string and the second LED chip string are arranged is electrically connected to the two electrodes. The high-color-temperature phosphor layer and low-color-temperature phosphor layer cover the first LED chip string and the second LED chip string respectively. The total resistance value of the first LED chip string is different from the total resistance value of the second LED chip string.