Patent ID: 8373839

Claim:
A liquid crystal display device comprising first and second substrates that are disposed so as to oppose to each other and each having a transparent electrode; a first seal material for forming a first space between these substrates; a second seal material for forming a second space between the first and second substrates; a first functional layer provided in the first space; and a second functional layer comprising a transparent resin layer, the second functional layer provided in the second space; wherein the first functional layer comprises a composite layer containing at least one liquid crystal and cured product, and the composite and the seal material each has a visible light transmittance of at least 70% in a transparent state, wherein the cured product is obtained by polymerizing one or more of a bifunctional polymerizable compound (A) represented by the following formula (1) and one or more of a bifunctional polymerizable compound (B) represented by the following formula (2): A 1 -R 1 —X 1 -(Q 1 -Z 2 ) p -Q 1 -Z 1 -Q 2 -(Z 3 -Q 4 ) q -X 2 —R 2 -A 2 (1) A 3 -R 3 -A 4 (2) wherein A 1 , A 2 are each independently an acryloyloxy group, a methacryloyloxy group or a vinyl ether group, Q 1 , Q 2 , Q 3 and Q 4 are each independently a 1,4-phenylene group or a 1,4-cyclohexylene group that is optionally substituted, X 1 and X 2 are each independently a single bond, an oxygen atom or an ester bond, R 1 and R 2 are each independently a single bond or a linear or branched alkylene group containing 2 to 20 carbon atoms that may have one or a plurality of ethereal oxygen atoms between carbon atoms, Z 1 , Z 2 and Z 3 are each independently a single bond, —C(═O)—O—, —O—C(═O)—, —CH 2 —CH 1 —, —C≡C—, —CH 2 —O— or O—CH 1 —, p and q are both 0 or one of them is 0 and the other is 1, A 3 and A 4 are each independently an acryloyloxy group, a methacryloyloxy group or a vinyl ether group, R 3 is —R 4 — or —(R 5 —O) n —R 5 —, wherein (i) R 4 is a linear or branched alkylene group containing from 2 to 20 carbon atoms, R 5 is a linear or branched alkylene group containing from 2 to 8 carbon atoms, and n is an integer chosen from 1 to 10; or (ii) R 4 is a linear alkylene group containing from 2 to 20 carbon atoms, R 5 is —(CH 2 )—, —CH 2 —CH(CH 3 )—, —CH 2 —CH 2 —CH(CH 3 )— or —CH 2 —CH 2 —C(CH 3 ) 2 — wherein r is an integer chosen from 2 to 5, and n is an integer chosen from 1 to 10.