US RE40,871 E1
Method of producing plasma display panel with protective layer of an alkaline earth oxide
Masaki Aoki, Kadoma (Japan); Hideo Torii, Kadoma (Japan); Eiji Fujii, Kadoma (Japan); Mitsuhiro Ohtani, Kadoma (Japan); Takashi Inami, Kadoma (Japan); Hiroyuki Kawamura, Kadoma (Japan); Hiroyoshi Tanaka, Kadoma (Japan); Ryuichi Murai, Kadoma (Japan); Yasuhisa Ishikura, Kadoma (Japan); Yutaka Nishimura, Kadoma (Japan); and Katsuyoshi Yamashita, Kadoma (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Filed on Nov. 29, 2001, as Appl. No. 9/997,536.
Application 08/890577 is a division of application No. 08/766030, filed on Dec. 16, 1996, granted, now 5,770,921.
Application 09/997536 is a reissue of application No. 08/890577, filed on Jul. 09, 1997, now 5,993,543, filed on Nov. 30, 1999.
Claims priority of application No. 7-326766 (JP), filed on Dec. 15, 1995; application No. 8-016326 (JP), filed on Feb. 01, 1996; application No. 8-16239 (JP), filed on Jun. 24, 1996; and application No. 8-223428 (JP), filed on Aug. 26, 1996.
Int. Cl. C30B 29/16 (2006.01)
U.S. Cl. 117—201  [117/202; 118/715 R; 118/718] 2 Claims
OG exemplary drawing
 
[ 28. A system for forming a protective layer on a plasma display panel comprising:
a vacuum chamber housing,
means for supporting a plasma display panel substrate with electrodes in the housing;
means for heating the plasma display panel substrate;
means for evaporating, from a source of magnesium oxide, a predetermined amount of magnesium oxide to provide the protective layer on the plasma display panel substrate; and
an electron gun aligned with the means for supporting for evaporating magnesium oxide, as applied to the plasma display panel substrate, to provide a single layer of a (110)-face orientation of sufficient thickness to provide sputtering resistance during a predetermined life term of the plasma display panel.]