Method and apparatus of aligning alignment layer, and method of manufacturing liquid crystal display using the same

An apparatus of aligning an alignment layer of a panel, the apparatus comprising:

• a light source generating a light;
• a stage receiving a substrate having the alignment layer provided thereon, the alignment layer comprising a plurality of alignment regions;
• a data processor loading data identifying positions of the alignment regions relative to the alignment layer and generating a control signal for controlling the light based on the loaded data identifying the positions of the alignment regions;
• a plurality of first optical heads, each of which is inclined in a first direction, receiving the control signal, controlling the light and selectively supplying the light to a first set of the alignment regions of the alignment layer at a first angle of incidence, and
• a plurality of second optical heads, each of which is inclined in a second direction different from the first direction, receiving the control signal, controlling the light and selectively supplying the light to a second set of the alignment regions of the alignment layer at a second angle of incidence different from the first angle of incidence.