Method and apparatus for producing plasma display panel
AssigneePanasonic Corporation
InventorsMasafumi Okawa, Yoshiki Sasaki, Takeo Funaoka, Toshiyuki Watanabe, Masaki Nishinaka, Mamoru Watanabe, Jun-ichi Taira, Yugo Takeda
Life of this patent
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Abstract
A method for producing a plasma display panel includes the steps of: evacuating air from a discharge space formed between a front plate and a rear plate which are substrates facing each other through piping; introducing a discharge gas into the discharge space through gas piping that branches from the piping; and recovering the discharge gas remaining in the piping system through the piping.
Claims10
A method for producing a plasma display panel, comprising:
- evacuating air from a discharge space formed between substrates facing each other through a piping, then;
- introducing a discharge gas into the discharge space through a gas piping that branches from the piping;
- and then
- recovering the discharge gas remaining in the piping and the gas piping through the piping, wherein
- said recovering the discharge gas further includes measuring a characteristic value of the recovered discharge gas for estimating impurity gas concentration in the recovered gas, and determining an ending time of said recovering the discharge gas based on the measured characteristic value.
An apparatus for producing a plasma display panel, comprising:
- an air evacuation device configured to evacuate air from a discharge space formed between substrates facing each other through a piping;
- a discharge gas introduction device configured to introduce a discharge gas into the discharge space through a gas piping that branches from the piping;
- and
- a discharge gas recovery device configured to recover the discharge gas remaining in the piping and the gas piping;
- and
- a measurement device configured to measure a characteristic value of recovered discharge gas to decide an ending time of recovering the discharge gas by estimating impurity gas concentration in the recovered gas,
- wherein the discharge gas recovery device is connected to the piping.
A method for producing a plasma display panel, comprising:
- evacuating air from a discharge space formed between substrates facing each other through a piping, then;
- introducing a discharge gas into the discharge space through a gas piping that branches from the piping;
- then
- recovering the discharge gas remaining in the piping and the gas piping through the piping;
- and
- introducing an inactive gas into the piping system through the gas piping after said recovering the discharge gas,
- wherein the inactive gas is at least one gas selected from a group consisting of nitrogen (N2) and helium (He), and
- wherein the discharge gas is at least one gas selected from a group consisting of neon (Ne) and xenon (Xe).
Dependencies are inferred from the claim text.