LED ENCAPSULANT COMPRISING RARE EARTH METAL OXIDE PARTICLES

摘要

The present invention relates to an LED encapsulant comprising rare earth metal oxide particles, and more specifically to an LED encapsulant comprising a compound represented by chemical formula (1) in a polymer resin. The encapsulant composition according to the present invention has the advantage of dramatically improving the light extraction efficiency of light formed in an LED chip. [Formula 1] Ma(OH)b(CO3)cOd, wherein M is Sc, Y, La, Al, Lu, Ga, Zn, V, Zr, Ca, Sr, Ba, Sn, Mn, Bi or Ac, a is 1 or 2, b is 0-2, c is 0-3, and d is 0-3. b, c and d are not simultaneously 0, and b and c are either simultaneously 0 or simultaneously not 0.