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High‐efficiency UV LEDs and RGB white LEDs for lighting and LCD backlights
Author(s) -
Muramoto Yoshihiko,
Kimura Masahiro,
Dempo Akihiko,
Nouda Suguru,
Fukawa Yuuya,
Sakai Shiro
Publication year - 2011
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/jsid19.12.907
Subject(s) - light emitting diode , phosphor , materials science , optoelectronics , luminous efficacy , rgb color model , diode , ultraviolet , solid state lighting , led lamp , layer (electronics) , optics , nanotechnology , computer science , physics , operating system
— Progress in the development of blue light‐emitting diodes and yellow phosphor has led to the realization of solid‐state lighting. The development was followed by improvement in the luminous efficacy of ultraviolet light‐emitting diodes (UV‐LEDs). By using near‐UV‐LEDs (n‐UV‐LEDs) excited light for red, green, and blue (RGB) phosphors, a new type of solid‐state lighting was realized. An innovative method for increasing the efficiency of LEDs by using a silicon nitride layer as the active layer and piling them up to a nano‐sized level with nano‐sized holes has been developed.