| US 7,541,073 B2 | ||
| Alignment film for LCD using photoreactive polymer and LCD comprising the same | ||
| Kyung Jun Kim, Daejeon Metropolitan (Korea, Republic of); Keon Woo Lee, Daejeon Metropolitan (Korea, Republic of); Byung Hyun Lee, Daejeon Metropolitan (Korea, Republic of); Min Young Lim, Seongnam-si (Korea, Republic of); Hye Won Jeong, Daejeon Metropolitan (Korea, Republic of); Sung Ho Chun, Daejeon Metropolitan (Korea, Republic of); Heon Kim, Yeosu-si (Korea, Republic of); and Sung Joon Oh, Daejeon Metropolitan (Korea, Republic of) | ||
| Assigned to LG Chem, Ltd., Seoul (Korea, Republic of) | ||
| Filed on Jan. 19, 2006, as Appl. No. 11/334,357. | ||
| Claims priority of application No. 10-2005-0005544 (KR), filed on Jan. 20, 2005. | ||
| Prior Publication US 2006/0159865 A1, Jul. 20, 2006 | ||
| Int. Cl. C09K 19/00 (2006.01); C09K 19/06 (2006.01); C09K 19/52 (2006.01) | ||
| U.S. Cl. 428—1.2 [428/1.1; 428/1.3; 252/299.01; 252/299.6; 430/20] | 19 Claims |
1. A composition for forming a liquid crystal alignment film, which comprises a polymer produced by polymerizing a component
for polymerization including the compound shown in the following Formula 1:
 in the Formula 1,
p is an integer ranging from 0 to 4;
at least one of R1, R2, R3 and R4 is a radical selected from the group consisting of the following Formulae 1a, 1b, 1c, and 1d;
the balance of R1, R2, R3 and R4 is independently a group selected from the group consisting of hydrogen, halogens, substituted or unsubstituted alkyls having
the number of carbon atoms of 1-20, substituted or unsubstituted alkenyls having the number of carbon atoms of 2-20, substituted
or unsubstituted saturated or unsaturated cycloalkyls having the number of carbon atoms of 5-12, substituted or unsubstituted
aryls having the number of carbon atoms of 6-40, substituted or unsubstituted aralkyls having the number of carbon atoms of
7-15, substituted or unsubstituted alkynyls having the number of carbon atoms of 2-20, and a non-hydrocarbonaceous polar group
including at least one of oxygen, nitrogen, phosphorus, sulfur, silicon, and boron; or
R1 and R2, or R3 and R4 may be connected to each other to form an alkylidene group having the number of carbon atoms of 1-10, or R1 or R2 may be connected to any one of R3 and R4 to form a saturated or unsaturated cyclo alkyl having the number of carbon atoms of 4-12 or an aryl having the number of carbon
atoms of 6-24;
 in the above Formulae 1a, 1b, 1c, and 1d,
A and A′ is substituted or unsubstituted alkylenes having the number of carbon atoms of 1-20, carbonyl, carboxy, or substituted
or unsubstituted arylenes having the number of carbon atoms of 6-40;
B is oxygen, sulfur, or —NH—;
X is oxygen or sulfur;
R9 is a group selected from the group consisting of a simple bond, substituted or unsubstituted alkylenes having the number of
carbon atoms of 1-20, substituted or unsubstituted alkenylenes having the number of carbon atoms of 2-20, substituted or unsubstituted
saturated or unsaturated cycloalkylenes having the number of carbon atoms of 5-12, substituted or unsubstituted arylenes having
the number of carbon atoms of 6-40, substituted or unsubstituted aralkylenes having the number of carbon atoms of 7-15, and
substituted or unsubstituted alkynylenes having the number of carbon atoms of 2-20; and
R10, R11, R12, R13, and R14 are independently a group selected from the group consisting of substituted or unsubstituted alkyls having the number of carbon
atoms of 1-20, substituted or unsubstituted alkoxys having the number of carbon atoms of 1-20, substituted or unsubstituted
aryloxys having the number of carbon atoms of 6-30, and substituted or unsubstituted aryls having the number of carbon atoms
of 6-40.
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