Patent ID: 7759511

Claim:
A silicon-containing compound represented by the following formula 1: wherein A is selected from the group consisting of SiMe 2 (CQ 2 ) n1 , Q is H or F, n 1 is an integer between 0 and 2; ring B is selected from the group consisting of ring C is selected from the group consisting of ring D is selected from the group consisting of at least one of ring B, ring C and ring D contains and each of L and L′ is independently selected from the group consisting of halogen atoms, CN, CF 3 , OCF 3 and NCS; wherein the substituents, which are introduced into ring B, ring C or ring D and represented by L 1 to L 7 , are independent from each other, even if they have the same designations; M is selected from C, N and Si, with the proviso that if M is N, L 3 or L 7 is null; Z is C; each of a 1 , a 2 and a 3 is independently selected from C, NR and O; E is selected from the group consisting of SiMe 2 (CQ 2 ) n2 , SiEt 2 (CQ 2 ) n2 , SiF 2 (CQ 2 ) n2 , SiCl 2 (CQ 2 ) n2 , SiMe 2 (CQ 2 ) n2 O k2 , SiEt 2 (CQ 2 ) n2 O k2 , SiF 2 (CQ 2 ) n2 O k2 , SiCl 2 (CQ 2 ) n2 Ok 2 , O k2 SiMe 2 (CQ 2 ) n2 , O k2 SiEt 2 (CQ 2 ) n2 , O k2 SiF 2 (CQ 2 ) n2 , O k2 SiCl 2 (CQ 2 ) n2 , (CQ 2 ) n2 O k2 SiMe 2 , (CQ 2 ) n2 O k2 SiEt 2 , (CQ 2 ) n2 O k2 SiF 2 , (CQ 2 ) n2 O k2 SiCl 2 , O k2 (CQ 2 ) n2 SiMe 2 , O k2 (CQ 2 ) n2 SiEt 2 , O k2 (CQ 2 ) n2 SiF 2 , O k2 (CQ 2 ) n2 SiCl 2 , (CH 2 ) n2 , C≡C, COO, OCO, CF 2 O, OCF 2 , OCOO, CH 2 O, CH 2 CO, OCH 2 and COCH 2 , wherein k 2 is 0 or 1, Q is H or F, and n 2 is an integer between 0 and 2; R is selected from the group consisting of H, a C 1 ˜C 15 alkyl group and a C 2 ˜C 15 alkene group, wherein the alkene group is CH═CH 2 , CH═CHCH 3 (E,Z), CH 2 CH═CH 2 , CH═CHCH 2 CH 3 (E,Z), CH 2 CH═CHCH 3 (E,Z), CH 2 CH 2 CH═CH 2 , CH═CHCH 2 CH 2 CH 3 (E,Z), CH 2 CH═CHCH 2 CH 3 (E,Z), CH 2 CH 2 CH═CHCH 3 (E,Z) or CH 2 CH 2 CH 2 CH═CH 2 ; R 1 is selected from the group consisting of H, a C 1 ˜C 15 alkyl group and a C 2 ˜C 15 alkene group, wherein the alkene group is CH═CH 2 , CH═CHCH 3 (E,Z), CH 2 CH═CH 2 , CH═CHCH 2 CH 3 (E,Z), CH 2 CH═CHCH 3 (E,Z), CH 2 CH 2 CH═CH 2 , CH═CHCH 2 CH 2 CH 3 (E,Z), CH 2 CH═CHCH 2 CH 3 (E,Z), CH 2 CH 2 CH═CHCH 3 (E,Z) or CH 2 CH 2 CH 2 CH═CH 2 ; X is selected from the group consisting of H, SiR 2 R 3 R 4 , CF 3 , OCF 3 , CN, NCS, halogen atoms, R and alkoxy group (OR 1 ); each of R 2 , R 3 and R 4 is independently selected from R and halogen atoms; each of L 1 , L 2 , L 3 , L 4 , L 5 , L 6 and L 7 is independently selected from the group consisting of H, halogen atoms, CN, CF 3 , OCF 3 and NCS; each of o, p and q independently represents an integer between 1 and 2; and at least one of E, A and X contains silicon.