公开(公告)号：US20180366614A1

公开(公告)日：2018-12-20

申请号：US15993616

申请日：2018-05-31

Applicant: Lextar Electronics Corporation

Inventor： Wei-Lun WU ,  Yu-Chun LEE ,  Ching-Yi CHEN ,  Tzong-Liang TSAI ,  Mu-Huai FANG ,  Ru-Shi LIU ,  Tsun-Hsiung YANG ,  Chaochin SU

IPC: H01L33/06 ,  H01L33/50 ,  F21V9/38 ,  H05B33/14 ,  C09K11/57

Abstract: An emission spectrum of a manganese-doped red fluoride phosphor includes a zero phonon line crest and a crest. The zero phonon line crest has a first peak emission wavelength and a first intensity (I1). The crest has a second peak emission wavelength and a maximum intensity (Imax) except for the zero phonon line crest. The second peak emission wavelength is greater than the first peak emission wavelength. A ratio (I1/Imax) of the first intensity (I1) to the maximum intensity (Imax) is ranged from about 0.2 to about 8 such that a luminous decay time of the manganese-doped red fluoride phosphor is less than 10 ms.