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US007450090B2
(12) United States Patent ao) Patent No.: Us 7,450,090 B2
Uemura et al. (45) Date of Patent: *Nov. 11,2008
(54) PLASMA DISPLAY PANEL AND IMAGING
DEVICE USING THE SAME
(75) Inventors: Norihiro Uemura, Higashimorokata
(JP); Keizo Suzuki, Kodaira (JP);
Hiroshi Kajiyama, Fuchu (JP); Yusuke
Yajima, Kodaira (JP); Masayuki
Shibata, Miyazaki (JP); Yoshimi
Kawanami, Miyazaki (JP); Koji Ohira,
Miyazaki (JP); Ikuo Ozaki,
Higashimorokata (JP)
(73) Assignees: Hitachi, Ltd., Tokyo (JP); Fujitsu
Hitachi Plasma Display, Ltd.,
Kanagawa (JP)
( * ) Notice: Subject to any disclaimer, the term of this
patent is extended or adjusted under 35
U.S.C. 154(b) by 0 days.
This patent is subject to a terminal dis-
claimer.
(21) Appl.No.: 11/396,611
(22) Filed: Apr. 4, 2006
(65) Prior Publication Data
US 2006/0192732 Al Aug. 31,2006
Related U.S. Application Data
(63) Continuation of application No. 10/961,029, filed on Oct. 12, 2004, now Pat. No. 7,071,901, which is a continuation of application No. 10/222,583, filed on Aug. 19, 2002, now Pat. No. 6,822,627.
(30) Foreign Application Priority Data
May 27,2002 (JP) 2002-151992
A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 (xs or less.
78 Claims, 9 Drawing Sheets
