Plasma display panel and manufacturing method thereof
The technology of a plasma display screen and its production method is applied in the field of plasma display screen and its production, which can solve the problems of reduction of discharge space, inability to meet the quality requirements of full high-definition PDP display screens, reduction of brightness, etc.
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Embodiment 1
[0040] Embodiment 1 technological step
[0041] The pre-order steps are the same as those of the prior art, and the process steps for forming the second protective layer: firstly, vacuum the chamber so that the degree of vacuum is 1.9×10 -4 Pa, the temperature was raised to 290°C while evacuating; after that, oxygen was passed into the chamber to reduce the vacuum to 2.8×10 -2 Pa, and then steam to reduce the vacuum to 5.1×10 -2 Pa; keep the moving speed of the substrate at 420 mm / sec during evaporation; finally control the thickness of the second protective layer to be 3700 angstroms.
Embodiment 2
[0042] Embodiment 2 technological steps
[0043] The steps are the same as in Example 1, the difference is: first vacuumize the chamber so that the degree of vacuum is 5.0×10 -4 Pa, the temperature was raised to 300°C while evacuating.
Embodiment 3
[0044] Embodiment 3 technological steps
[0045] The steps are the same as in Example 1, the difference is: first vacuumize the chamber so that the degree of vacuum is 7.6 × 10 -4 Pa, the temperature was raised to 310°C while evacuating.
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