Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2011-05-03
2011-05-03
Qi, Mike (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C349S065000, C362S612000, C362S097200, C362S097300
Reexamination Certificate
active
07936418
ABSTRACT:
A white light-emitting device1includes a semiconductor light-emitting element2emitting ultraviolet light or violet light, and a light-emitting unit10which includes three or more kinds of visible light-emitting phosphors9and emits white light when excited by the light from the semiconductor light-emitting element2. The emission spectrum of the light-emitting unit10has peaks in a blue region of not less than 440 nm nor more than 460 nm, a green region of not less than 510 nm nor more than 530 nm, and a red region of not less than 620 nm nor more than 640 nm, and the three or more kinds of visible light-emitting phosphors9are bound together with a binder in advance.
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Ishii Tsutomu
Ooya Yasumasa
Sakai Ryo
Shirakawa Yasuhiro
Takeuchi Hajime
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Qi Mike
Toshiba Materials Co., Ltd.
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