International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 29 (IDW '22)

Proceedings of the International Display Workshops Volume 29 (IDW '22)

Dec 14, 2022 - Dec 16, 2022
Fukuoka International Congress Center

1:30 PM - 1:50 PM

[PH3-1 (Invited)] Development of Phosphor film for Ultra-thin, High-brightness LCDs

*Takehiro Yamasuge1, Yasushi Ito1, Tomomitsu Hori1 (1.Dexerials Corporation (Japan))

Phosphor, LED, Backlight, SrGa2S4:Eu, Dichroic filter

https://doi.org/10.36463/idw.2022.0402

In recent years, mini-LEDs and local dimming have been used in direct-type backlight units (BLUs) in LCDs to realize thinner LCD designs and higher contrast, so as to compete with OLEDs. A phosphor film with a green-emitting SrGa2S4:Eu phosphor, red-emitting K2SiF6:Mn phosphor and dichroic filter was developed and commercialized and is described in this paper. An LCD with a phosphor film and blue mini-LEDs...