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:
Oct. 04, 2022
Filed:
Jun. 11, 2020
Xiamen Sanan Optoelectronics Technology Co., Ltd., Xiamen, CN;
Ping Zhang, Xiamen, CN;
Junpeng Shi, Xiamen, CN;
Senpeng Huang, Xiamen, CN;
Zhen-duan Lin, Xiamen, CN;
Shunyi Chen, Xiamen, CN;
Chen-ke Hsu, Xiamen, CN;
XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD., Xiamen, CN;
Abstract
A light-emitting diode (LED) device includes a base plate, an LED chip unit disposed on the base plate, and a light conversion layer disposed on and covering the LED chip unit. The LED chip unit includes a first chip and a second chip. The first chip emits a first excitation light having an emission peak wavelength ranging from 385 nm to 425 nm. The second chip emits a second excitation light having an emission peak wavelength greater than that of the first excitation light. The light conversion layer is configured to convert the first and second excitation lights to excited lights having different emission peak wavelengths, each of which ranges from 440 nm to 700 nm. A mixture of the excited lights is white light.