Application device and method of producing application layer using same

An application device comprising:

• a liquid tank for retaining a liquid;
• a discharge unit to which the liquid is supplied from the liquid tank, and which discharges the liquid to at least one application-target area extending in a first direction formed on a substrate;
• and
• a moving unit which moves one of the discharge unit and the substrate relative to the other along the application-target area,
• wherein the moving unit moves the discharge unit relatively in the first direction along each application-target area, and moves the discharge unit in a second direction orthogonal to the first direction in a plane along an upper surface of the substrate when moving the discharge unit to a first or second end of the application-target area in the first direction,
• wherein the discharge unit comprises a head cylinder filled with the liquid supplied from the liquid tank, a nozzle plate which is provided at one end of the head cylinder, and which is provided with plural nozzle holes arranged side by side on a straight line, the plural nozzle holes each discharging the liquid, and a rotating mechanism which makes a rotating angle of an arrangement direction of the plural nozzle holes of the nozzle plate changeable relative to the first direction in the plane along the upper surface of the substrate, and
• wherein the rotating angle is set to be a value such that an application width set by a width of the plural nozzle holes of the nozzle plate in the second direction in accordance with the rotating angle becomes a value corresponding to a width of the application-target area of the object in the second direction
• wherein a center line of a discharge direction in which at least one of the plural nozzle holes discharges the liquid is inclined toward a center direction of the width of the application-target area in the second direction relative to a direction orthogonal to a surface of the nozzle plate from which the liquid is discharged, and
• wherein the plural nozzle holes of the nozzle plate include a first nozzle hole and a second nozzle hole having respective center lines with inclined angles different from each other.