Guangzhou Hongli Opto-Electronics Co. announced that on Mar. 14th Deputy General Manager and Director Hui Lun resigned due to personal reasons during a board of directors meeting.
For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ
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