The article is used as a light source for key illumination in vehicles, for a backlight unit to illuminate a liquid crystal display and the like.
The article is used as a light source for key illumination in vehicles, for a backlight unit to illuminate a liquid crystal display and the like.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-032796 | Nov 2007 | JP | national |
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