Silicon composition and organic light emitting device including the same

1. 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.

2. The silicon composition of claim 1 , 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 methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, or t-butyl, and

R 5 , R 6 , R 7 , R 8 , R 9 , and R 10 are hydrogen atoms.

3. The silicon composition of claim 1 , wherein the silicon compound represented by Formula 1 is a silicon compound represented by Formula 3:

4. The silicon composition of claim 1 , wherein the silicon compound represented by Formula 2 is a silicon compound represented by Formula 4:

5. The silicon composition of claim 1 , wherein the silicon compound represented by Formula 1 is a silicon compound represented by Formula 3:

and

the silicon compound represented by Formula 2 is a silicon compound represented by Formula 4:

6. The silicon composition of claim 1 , wherein 100≦k≦1,000 and 0.1k≦m+n≦k.

7. The silicon composition of claim 1 , wherein when 100≦k≦1,000, 0.1k≦m+n≦k.

8. The silicon composition of claim 1 , wherein 1,000<k≦2,000 and 0.005k≦m+n≦0.5k.

9. The silicon composition of claim 1 , wherein when 1,000<k≦2,000, 0.005k≦m+n≦0.5k.