Patent ID: 8512869

Claim:
An organic light emitting device comprising a silicon composition as a filler, wherein the silicon composition comprises a silicon compound represented by Formula 1 and a silicon compound represented by Formula 2: wherein, R 1 , R 2 , R 3 , R 4 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , and R 19 are each independently a C 1 -C 4 alkyl group, R 5 , R 6 , R 7 , R 8 , R 9 , and R 10 are each independently hydrogen or deuterium, k, m, and n are positive integers, and the ratio of k to the sum of m and n is from about 1:0.001 to about 1:0.2.