McClure, Qualey & Rodack, LLP
Wavelength-converting film and light emitting device and display device using the same
A wavelength-converting film and a light emitting device and a display device using the same are disclosed. The wavelength converting film comprises a fluoride phosphor powder with a Mn4+ as an activator, wherein the fluoride phosphor powder with the Mn4+ as the activator comprises a sheet-like crystal and has a chemical formula of A2[MF6]:Mn4+, wherein A is Li, Na, K, Rb, Cs, NH4, or a combination thereof, and M is Ge, Si, Sn, Ti, Zr, or a combination thereof.
LEXTAR ELECTRONICS CORPORATION
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Wen-Wan Ching-Yi Tzong-Liang Yu-Chun
Tai Chen Tsai Lee