Liquid crystal display
View Patent ↗A liquid crystal display includes: a first substrate and an opposing second substrate; an alignment layer formed on the first substrate and the second substrate; and a liquid crystal layer interposed between the first substrate and the second substrate. The alignment layer includes a copolymer including a dianhydride monomer and a diamine monomer.
1. A liquid crystal display comprising: a first substrate and an opposing second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and an alignment layer disposed on the first substrate and the second substrate, the alignment layer comprising a copolymer formed by copolymerizing linear dianhydride monomers and linear diamine monomers comprising a linear dianhydride monomer represented by Formula 1 below, and linear diamine monomers represented by Formulas 2 and 3 below:
wherein in Formula 1, n is 0 or a positive integer;
and
2. The liquid crystal display of claim 1 , wherein n is 0 or 1.
3. The liquid crystal display of claim 1 , wherein the linear dianhydride monomers further comprise pyromellitic acid dianhydride (PMDA), 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride, or a combination thereof.
4. The liquid crystal display of claim 1 , wherein the liquid crystal layer comprises twisted-nematic liquid crystal molecules.
5. The liquid crystal display of claim 1 , further comprising:
a gate line disposed on the first substrate;
a data line disposed on the first substrate and intersecting the gate line;
a thin film transistor connected to the gate line and the data line;
a pixel electrode connected to the thin film transistor; and
a common electrode disposed on the second substrate.
6. The liquid crystal display of claim 1 , wherein the alignment layer comprises the linear dianhydride monomers and the linear diamine monomers at a ratio of about 1:1.