A manufacturing method of a liquid crystal display includes: forming a first alignment layer on a passivation layer and a pixel electrode to form a first display panel; forming a second alignment layer on a common electrode to form a second display panel; and combining the first and the second display panels, wherein formation of the first and second alignment layers includes spraying a first alignment mixture and second alignment mixture on, respectively, the first and second display panels using an inkjet head while moving the inkjet head across the first and second display panels to form a first alignment mixture layer and a second alignment mixture layer, and hardening the first and second alignment mixture layers, and spray progressing directions of the first and second alignment mixture are more than 7 degrees to less than 45 degrees with respect to the first substrate and the second substrate respectively.