Phosphor dispersion liquid and method for manufacturing LED device

摘要

The present invention provides a phosphor dispersion liquid in which phosphor particles, laminar clay mineral microparticles, and oxide microparticles are dispersed in a solvent, wherein when a glass bottle of a 15-mm inner diameter is filled with 5 ml of the phosphor dispersion liquid and left standing, the time taken for a supernatant layer to be generated due to settling of the phosphor particles is four hours or longer.

主权项

1. A phosphor dispersion liquid comprising a dispersion solvent, phosphor particles, laminar clay mineral microparticles, and oxide microparticles, the phosphor particles, the laminar clay mineral microparticles, and the oxide microparticles being dispersed in the dispersion solvent, wherein
the laminar clay mineral microparticles have a plate shape, and when 5 ml of the phosphor dispersion liquid is charged into a glass bottle of 15 mm inner diameter and allowed to stand, the time it takes for a supernatant layer to be generated due to settling of the phosphor particles is 4 hours or longer.