| 摘要 |
The present invention fluorescence material has a particle diameter of the crystal area defined as dc, and the scope of dc is: 150 nm≧dc≧10 nm. The coat of the outside of the fluorescence material has one sheet of coating medium at least. Of course, there is at least a geometrical etching layer on the particle of the fluorescence material. The above-described structures will promote the extraction efficiency of light. |
