Method of manufacturing mask substrate and method of manufacturing organic electroluminescent display using the same

A method of manufacturing an organic electroluminescent display, comprising:

• positioning a first conductive member on a base substrate;
• positioning a second conductive member on the first conductive member, the second conductive member being electrically coupled to the first conductive member, and having a resistivity higher than that of the first conductive member;
• positioning a mask substrate on the second conductive member;
• removing a portion of the mask substrate that contacts the second conductive member to form a mask hole by transmitting a current to the second conductive member through the first conductive member to generate heat from the second conductive member;
• positioning an array substrate on the mask substrate;
• removing the base substrate and the first and second conductive members from the array substrate and the mask substrate to expose a portion of the array substrate through the mask hole;
• and
• forming an organic light emitting layer on the exposed portion of the array substrate.