Apparatus for manufacturing display device

An apparatus for manufacturing a display device, the apparatus comprising:

• a stage on which a display substrate is disposed;
• an inspecting portion disposed on the stage to inspect the display substrate;
• and
• a first horizontal moving portion configured to linearly move the stage in a first direction,
• wherein the first horizontal moving portion comprises:
• a lower module;
• and
• an upper frame linearly moving in the first direction with respect to the lower module, and
• the lower module comprises:
• a frame portion providing a frame space;
• a ball screw portion of which at least part being disposed in the frame space and including a screw shaft extending in the first direction and a nut portion coupled to the screw portion;
• a pair of rail portions extending in the first direction and fixed to the frame portion to be spaced apart from each other in a second direction crossing the first direction;
• a pair of first supports connected to the pair of rail portions so as to linearly move in the first direction;
• and
• a driving portion connected to the screw shaft to rotate the screw shaft around an axis extending in the first direction, and
• the upper frame comprises a supply flow path simultaneously supplying a lubricant to each of the nut portion and the pair of first supports and is detachably connected to each of the nut portion and the pair of first supports.