| 简介 |
The present invention refers to rare earth element selected from the group consisting of magnesium oxide consists including one or more of, said of a rare earth element content per parts by weight said magnesium oxide 1 5.0 x 10 -5 weight percent to 6.0 x 10 -4 parts by protective film, said for forming protective film, process for composite, said protective film manufacturing method and said plasma display panel protective relates to. To shorten the delay time for a discharge contains a fluorescent substance capable of the present invention according to, discharge bar reducing the temperature dependence of the delay time, scan and increase of Xe. requirements. |
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