Patent ID: 8163359

Claim:
A retardation film comprising: (a) a polymer resin; and (b) a silicon-containing compound represented by Formula 1, each of Q 1 to Q 12 independently represents —H, —F, —Cl, —Br, —I, —CN, —CF 3 , —OCF 3 , —R 6 , —OR 6 , —NHR 6 , —NR 6 R 6 , or —C(═O)R 6 ; Z represents C or N, and herein, there exist bonds with corresponding Q 1 to Q 12 with the proviso that Z≠N; each of l, m and n independently represents an integer of 0 to 2, and l+m+n represents an integer of at least 1; each of Y, G 1 and G 2 independently represents —(CH 2 ) r SiW 1 W 2 (CH 2 ) s —, —O—, —NR 6 —, —S—, —SO—, —SO 2 —, —(CH 2 ) q —, —CH═CH—, —C≡C—, C(═O)O(CH 2 ) q —, —OC(═O)(CH 2 ) q —, (CH 2 ) q C(═O)O—, —(CH 2 ) q OC(═O)—, —C(═O)—, —C(═O)(CH 2 ) q —, —(CH 2 ) q C(═O)—, —C(═O)NR 6 —, —NR 6 C(O)—, —C(═O)S—, or —SC(═O)—, q represents an integer of 0 to 5, each of r and s independently represents an integer of 0 to 2; E represents —H, —F, —Cl, —Br, —I, —CN, —NCO, —NCS, —SiW 1 W 2 R 6 , —R 6 , —N(R 6 ) 2 , —OR 6 , —CF 3 , or —OCF 3 ; each of X 1 to X 5 independently represents —SiW 1 W 2 —, —O—, —NR 6 —, —S—, —SO—, —SO 2 —, —(CH 2 ) p —, —C(═O)NR 6 —, —NR 6 C(═O)—, —NR 6 C(═O)NR 6 —, —C(═O)O—, —OC(═O)—, or —OC(═OC)O—, and p represents an integer of 0 to 2; W 1 represents —R 7 , —OR 7 , —NHR 7 , or —N(R 7 ) 2 ; W 2 represents —R 8 , —OR 8 , —NHR 8 , or —N(R 8 ) 2 ; each of R 1 to R 8 independently represents —H, C 1 ˜C 20 alkyl, C 1 ˜C 20 fluoroalkyl, C 2 ˜C 20 alkynyl, C 2 ˜C 20 fluoroalkynyl, —(CH 2 CH 2 O) 1 CH 3 , —(CH 2 CHCH 3 O) 1 CH 3 , or —(CHCH 3 CH 2 O) 1 CH 3 , and t represents an integer of 1 to 5; and at least one of Y, G 1 , G 2 , E, and X 1 to X 5 is a Si containing substituent, and herein, as the Si containing substituent, in Y, G 1 and G 2 , —(CH 2 ) r SiW 1 W 2 (CH 2 ) s — is introduced, in E, —SiW 1 W 2 R 6 is introduced, and in X 1 to X 5 , —SiW 1 W 2 — is introduced.