Patent ID: 9397296
Filing Date: 2016-07-19
CPC Classification: H01L

Claim Text:
1. A method of manufacturing an organic light emitting display apparatus, comprising: preparing a device substrate on which a plurality of first electrodes and a pixel definition layer are formed, wherein the pixel definition layer is disposed to extend a distance between neighboring first electrodes and cover a portion of each of the neighboring first electrodes; forming a master substrate including a transfer mask on a first substrate which is transparent, wherein the transfer mask overlaps with the pixel definition layer, and the transfer mask has a first surface spaced apart from the first substrate by at least a thickness of the transfer mask and a second surface facing the first surface; placing the transfer mask on a top surface of the pixel definition layer so that the transfer mask is separated from the first substrate, wherein the first surface has a shape and a size that substantially matches those of the top surface of the pixel definition layer; forming an organic material layer on each of the first electrodes using the transfer mask as a protection layer; and removing the transfer mask.