Production method for plasma display panel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 4, 2006
Grant Date -
Apr 24, 2003
app pub date -
Mar 29, 2001
filing date -
Mar 31, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A manufacturing apparatus for a PDP includes a unit for forming a protective layer protecting a dielectric layer on a first plate, a unit for baking a phosphor layer applied on a second plate, a unit for sealing the first and second plates arranged so that the protective layer faces the phosphor layer, and a unit for baking the first and second plates while exhausting a space between them. The four units are placed in one or more closed chamber. When the apparatus is driven, spaces in and between the closed chambers each contain a gas atmosphere with vapor partial pressure of 10 mPa or lower, or with a pressure of 1 Pa or lower, where the protective layer and the phosphor layer exhibit less water-absorbing property, preventing degradation of the PDP performances. The protective layer does not contact with atmospheric carbonic acid gas, preventing alteration thereof.
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