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:
Feb. 25, 2020
Filed:
Mar. 31, 2016
Hongli Zhihui Group Co.,ltd., Guangdong, CN;
Yi Xiong, Guangdong, CN;
Yuefei Wang, Guangdong, CN;
Tiangang Lv, Guangdong, CN;
Kunzhui Li, Guangdong, CN;
Guoping Li, Guangdong, CN;
Hongli Zhihui Group Co.,Ltd., Guangdong, CN;
Abstract
A method of packaging CSP LED, comprising the following steps: placing LED chips on a carrier plate; coating light-blocking glue or fluorescent glue on the LED chips; at last cutting to form CSP LEDs with coating light-blocking glue or fluorescent glue outside the chip. Multiple LEDs with one light-emitting surface could be fabricated simultaneously. The process is simple and can prevent yellow light from appearing at the bonding surface of the light-blocking glue and the chip. The invention provides a CPS LED with the chip covered by packaging glue and the electrode of the chip protruding exposed and protruding. The invention provides CPS LED with three light-emitting surfaces and light-blocking glue arranged on two side surfaces and fluorescent glue arranged on other surfaces. This kind of LED could be used in various fields such as backlight and light bar, from side surfaces of which light could be emitted.