| http://www.w3.org/ns/prov#value | - Therefore, when a hydrolysate solution of ethyl silicate, which contains a fluorescent substance, is applied to the surface of a light emitting device and a supporting body except for the surface of the light emitting device and then heated, a coating layer wherein fluorescent substance is bound with SiO2 can be formed on the surface of the light emitting device.
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