Method for rubbing LCD substrate

A method for manufacturing a liquid crystal display device, said method comprising:

• a first step of transporting a liquid crystal display substrate under a rubbing apparatus comprising a rotated rubbing roller and a rotating conditioning roller arranged aside to the rubbing roller, the liquid crystal display substrate having an alignment layer thereon, the rubbing roller having a rubbing cloth on a surface of the rubbing roller, wherein a surface of the rubbing cloth has a plurality of first pile fibers, so that the alignment layer is rubbed by the first pile fibers during rotation of the rubbing roller, the conditioning roller having a conditioning cloth on a surface of the conditioning roller, wherein a surface of the conditioning cloth has a plurality of second pile fibers, so that the second pile fibers of the conditioning cloth on the conditioning roller are in contact with the first pile fibers of the rubbing cloth on the rubbing roller, and wherein the rubbing roller rotates in a first rotating direction opposite to a second rotating direction in which the conditioning roller rotates;
• a second step of binding a pair of substrates to each other, at least one of the pair of substrates having gone through rubbing in the first step;
• and
• a third step of injecting liquid crystal between the substrates.