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Experimental and theoretical luminous efficacies of phosphors used in combination with blue‐emitting LEDs for lighting and backlighting
Author(s) -
Withnall Robert,
Silver Jack,
Fern George R.,
Ireland Terry G.,
Lipman Anthony L.,
Patel Birju
Publication year - 2008
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2841871
Subject(s) - backlight , phosphor , luminous efficacy , light emitting diode , luminous flux , optoelectronics , optics , luminous intensity , materials science , led lamp , white light , blue light , physics , liquid crystal display , light source , nanotechnology , layer (electronics)
— Phosphors that absorb blue light and emit in the green, yellow, and red have been synthesized, and their experimental and theoretical luminous efficacies are compared. It is proposed that a blue‐emitting LED in combination with red‐emitting Sr 2 Si 5 N 8 : Eu 2+ and green‐emitting SrGa 2 S 4 : Eu 2+ phosphors is used as an energy‐efficient white‐light source for display backlighting applications.

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