| 摘要 |
<p>This invention relates to a board, in particular a writing board comprising a base layer (6), a cover layer (7) provided for erasably writing thereon and a photo-luminescent layer (8) comprising photo-luminescent particles embedded in a polymeric layer and disposed between said base layer (6) and said cover layer (7), the latter being made of a transparent material so that texts or drawings applied on this board are even in the dark clearly visible.</p> |
