| 摘要 |
PROBLEM TO BE SOLVED: To improve luminance of an LED package employing a light emitting diode sealing composition to which fine particles are added.SOLUTION: A light emitting diode sealing composition contains a matrix resin, a phosphor and a plurality of fine particles having different refraction indices. A concentration of fine particles having a refraction index closest to that of the matrix resin, among the fine particles, in a solid component in the sealing composition is 1 to 30 vol%, and a concentration of the other fine particles in the solid component in the sealing composition is 0.001 to 0.045 vol%. |
