| 摘要 |
The present invention provides a manufacturing method of a light-emitting material of a long service life, which includes adding boron ions and halogen ions in this order to an alcohol solution of an organic silicon compound having a hydroxyl group and a methoxyl group to obtain a solution of a reaction product by hydrolysis/dehydration condensation at normal temperature, then dispersing fine particles of a light-emitting material in alcohol under agitation, adding the solution of the reaction product into such alcohol dropwise to form a glass film of the reaction product on the surface of the fine particles of the light-emitting material, then separating the fine particles and spray drying the fine particles at a temperature of 200° C. or lower.
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