Patent ID: 9136476
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. A method of manufacturing an organic light emitting display apparatus, the method comprising: fixing a substrate to a transfer unit at a loading unit; transporting the transfer unit on which the substrate is fixed in a first direction into a chamber by using a first conveyer unit that passes through the chamber; depositing a deposition material that is emitted from a deposition assembly by moving one of the substrate or the deposition assembly relative to the other, while the deposition assembly arranged in the chamber and the substrate are separated from each other by a distance; separating the substrate on which deposition is completed from the transfer unit at an unloading unit; transporting the transfer unit that is separated from the substrate to the loading unit by using a second conveyer unit, wherein the depositing of the deposition material comprises measuring an interval between the substrate and the deposition assembly while the one of the substrate or the deposition assembly moves relative to the other; and wherein the deposition assembly comprises: a deposition source configured to discharge the deposition material; a deposition source nozzle unit installed at a side of the deposition source and comprising a plurality of deposition source nozzles; a patterning slit sheet facing the deposition source nozzle unit and comprising a plurality of patterning slits formed along a direction; and an interval measuring assembly configured to move relative to the substrate and the patterning slit sheet in order to measure an interval between the substrate and the patterning slit sheet, wherein the patterning slit sheet comprises a patterning unit having a plurality of patterning slits and a non-patterning unit that surrounds the patterning unit and does not have a patterning slit, and wherein the interval measuring assembly comprises at least three interval measuring units, and the at least three interval measuring units are located on a single virtual plane, and are not arranged along a straight line.