Jiangsu Bree Optronics, a Chinese phosphor manufacturer, claimed patent invalidity against The National Institute for Materials Science (NIMS) in Japan, who changed the licensing scheme for its comprehensive patent on red phosphor since October 2018. In October 2018, NIMS announced a new licensing scheme to the patents on the nitride red phosphor by the name of CASN, SCASN or 1113 phosphor (S/CASN phosphor). Originally, companies manufacturing LED devices were able to purchase S/CASN phosphors from phosphor manufacturing companies holding NIM...

Dwindling profits in the LED package market has made market competitions far more ferocious, and has even affected phosphor, a key LED material. Whether it is the highly mature yellow powder or the maturing green and red phosphor, “increased volume and plunging prices” has become a LED phosphor tag. To better understand phosphor manufacturers challenging survival environment, LEDinside interviewed China’s leading phosphor manufacturer Bree Optronics Deputy General Manager Chao Liang.