Invention Grant
- Patent Title: Plasma display unit
- Patent Title (中): 等离子显示单元
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Application No.: US10489326Application Date: 2003-05-15
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Publication No.: US07161298B2Publication Date: 2007-01-09
- Inventor: Hiroyuki Kawamura , Kazuhiko Sugimoto , Masaki Aoki , Mitsuhiro Otani , Hiroshi Setoguchi , Junichi Hibino
- Applicant: Hiroyuki Kawamura , Kazuhiko Sugimoto , Masaki Aoki , Mitsuhiro Otani , Hiroshi Setoguchi , Junichi Hibino
- Applicant Address: JP Osaka
- Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2002-142659 20020517
- International Application: PCT/JP03/06047 WO 20030515
- International Announcement: WO03/097767 WO 20031127
- Main IPC: C01B25/00
- IPC: C01B25/00 ; C01B25/01 ; C01B25/02 ; H01J1/14
Abstract:
A plasma display device includes a blue phosphor composed of a compound represented by Me3MgSi2O8:Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of bivalent Eu ions is 45 to 95% and concentration of trivalent Eu ions is 5 to 55%, of the europium (Eu) atoms contained in the blue phosphor layer. The plasma display device has less luminance degradation in a panel manufacturing process, high luminance, and long lifetime.
Public/Granted literature
- US20040239247A1 Plasma display unit Public/Granted day:2004-12-02
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