Patent ID: 7841919
Filing Date: 2010-11-30
Classification: C03C,H01L

Abstract:
1. A method of making an organic light emitting display apparatus, the method comprising: providing a first substrate comprising a first surface; placing a mask over the first surface, wherein the mask comprises a patterned opening configured to pass a frit paste composition therethrough, wherein the patterned opening forms a closed loop, wherein the mask comprises a second surface facing away from the first surface of the first substrate; wherein the mask comprises at least one additional patterned opening configured to pass the frit paste composition therethrough, wherein the at least one additional patterned opening forms a closed loop; providing the frit paste composition on the second surface of the mask; and pressing the frit paste composition such that the frit paste composition passes through the patterned opening and lands on the first surface of the first substrate to form a at least one structure of the frit paste composition in one or more closed loops on the first surface; wherein the structure of the frit paste compositions comprises a third surface substantially parallel to the first surface of the first substrate, and wherein the third surface is substantially flat and free of a substantial bump or step.