The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2006
Filed:
Feb. 14, 2002
Masatoshi Shiiki, Musashimurayama, JP;
Choichiro Okazaki, Kodaira, JP;
Teruki Suzuki, Funabashi, JP;
Shin Imamura, Kokubunji, JP;
Masaaki Komatsu, Kokubunji, JP;
Hiromichi Yamada, Hino, JP;
Masatoshi Shiiki, Musashimurayama, JP;
Choichiro Okazaki, Kodaira, JP;
Teruki Suzuki, Funabashi, JP;
Shin Imamura, Kokubunji, JP;
Masaaki Komatsu, Kokubunji, JP;
Hiromichi Yamada, Hino, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The luminance of phosphor is enhanced by forming a phosphor screen of a fluorescence generation unit by phosphor expressed by the following composition formula: (LGdCe)(AlGa)O:Mwherein, a, b and c are each in the following ranges of 0≦a≦1.0, 0<b≦0.1 and 0≦c≦1.0, M is dopant of a monovalent metal element and is included in phosphor by approximately 0<d≦1000 wt-ppm. Dopant M of a monovalent metal element is at least one type of element selected from a group consisting of K, Na, Li, Cu, Ag and Au. Thus, a display using a white light of improved luminescence and having excellent characteristics can be realized.