Tension mask frame assembly manufacturing apparatus and method

A linear source vertical vacuum deposition apparatus for manufacturing a tension mask-frame assembly in which a tension mask is mounted on a frame which has a rectangular frame shape and includes a pair of support frames, to which opposite edges of the tension mask with a rectangular sheet shape are fixed, and a pair of connection frames configured to connect both ends of the support frames to each other, the apparatus comprising:

• a frame loading unit configured to load a tension mask-frame assembly;
• a pressing unit configured to press the support frame between both ends thereof in a plate surface direction of the support frame;
• a load cell configured to measure a force applied to the support frame;
• and
• a control unit configured to control the pressing unit to pre-deform the support frame in accordance with at least a portion of a bending deformation amount of the support frame, caused by own weight of the support frame and tension of the tension mask,
• wherein the pressing unit includes a plurality of inward pressing members which are spaced apart from each other in a lengthwise direction of the pair of support frames and press the pair of support frames toward the inside of the frame, and
• wherein the pressing unit includes a plurality of outward pressing members which are spaced apart from each other in a lengthwise direction of the support frame and press the support frame toward the outside of the frame.