Hitachi, Ltd.

Akira Katou

Kenichi Onisawa

Tetsuro Minemura

Yasuhiro Koizumi

Isao Tokomoto

Kouichi Nose

Yasushi Ihara

Kazuo Uetani

Shiro Takigawa

A plasma display panel (PDP), consisting of a front panel ( ) equipped with display electrodes ( ) and a rear panel ( ) equipped with address electrodes ( ), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films ( ), made of metallic oxide, covering the dielectric layer ( ) installed on the front panel ( ); the outer, upper layer ( ) being formed into a layer of material with a specific surface area of 20 m /g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer ( ) being formed into a layer of material with a specific surface area of 10 m /g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

Plasma display panel

There is provided a plasma display panel (PDP), consisting of a front panel ( ) equipped with display electrodes ( ) and a rear panel ( ) equipped with address electrodes ( ), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films ( ), made of metallic oxide, covering the dielectric layer ( ) installed on the front panel ( ); the outer, upper layer ( ) being formed into a layer of material with a specific surface area of 20 m /g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer ( ) being formed into a layer of material with a specific surface area of 10 m /g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.

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Mito, Japan

Akira Katou