Abstract: An inkjet printing apparatus includes: an inkjet head including nozzles that discharge an ink; and a controller that controls to discharge the ink by the nozzles. The controller includes: a nozzle coordinate analyzer that analyzes coordinates of the nozzles based on a substrate; a nozzle selection probability grantor that assigns a nozzle selection probability the nozzles that how likely the nozzles are selected to discharge the ink; and an ink discharge determinator that determines whether to discharge the ink or not based on the nozzle selection probability.

Abstract: Provided are an apparatus for manufacturing a mask assembly, a method for calculating auto-teaching data using the same, and a method of manufacturing a mask assembly using position correction values calculated by auto-teaching data calculation. The apparatus for manufacturing a mask assembly includes a processing unit including a stage, a mask, a mask frame, and marking parts, a first gantry disposed on the processing unit and movable in a first direction, a second gantry connected to the first gantry and movable in a second direction intersecting the first direction, a photographing unit connected to the second gantry and that photographs the marking parts, and a movement control unit that controls movements of the first gantry and the second gantry.

Abstract: An inkjet printing apparatus includes: an inkjet head including nozzles that discharge an ink; and a controller that controls to discharge the ink by the nozzles. The controller includes: a nozzle coordinate analyzer that analyzes coordinates of the nozzles based on a substrate; a nozzle selection probability grantor that assigns a nozzle selection probability the nozzles that how likely the nozzles are selected to discharge the ink; and an ink discharge determinator that determines whether to discharge the ink or not based on the nozzle selection probability.

Abstract: A method of manufacturing a display apparatus is provided. The method includes forming a test area on a display substrate, irradiating a first laser to the test area and determining relative positions of the test area and a first irradiation area formed by irradiating the first laser to the test area, and correcting a position of a second laser irradiated to the display substrate based on the relative positions of the test area and the first irradiation area.