| 申请日期 | 2025-09-17 | 申请号 | US11632346 |
| 公开（公告）号 | US20070281185A1 | 公开（公告）日 | 2007-12-06 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Hideaki Sakurai; Yoshitaka Mayuzumi; Hiroki Hirata | ||
| 简介 | A MgO vapor deposition material, which is used to form a protective film of a plasma display panel, comprises pellets having MgO purity of 98% or more and relative density of 90% or more. The pellets contain only a Sc element as a rare earth element. The concentration of the Sc element is from 5 to 5, 000 ppm, preferably from 10 to 3, 000 ppm, and more preferably from 20 to 2, 000 ppm. | ||
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