Method for producing display device

1. A method for producing display devices for forming deposited patterns conforming to pixels on a substrate by means of elongated evaporation sources and a deposition mask having regularly arranged apertures, the pixels and apertures having respective long sides and short sides, said method comprising the steps of:

providing said substrate with parallel long sides and parallel short sides and on which are designated plural display panel regions, each display panel region used to produce a separate display panel, the display panel regions being rectangular in shape and having short sides parallel to the long sides of said substrate;

providing said deposition mask with parallel long sides and parallel short sides corresponding to those of said substrate, said deposition mask having said apertures for said pixels in relationship to each display panel region;

providing said evaporation sources such that lengths thereof match the lengths of said short sides of said substrate and said deposition mask;

arranging said deposition mask and said substrate in such a way that the long sides of said apertures and pixels and long sides of said display panel regions are parallel to the lengthwise direction of said evaporation sources; and

moving said substrate and said deposition mask relative to said evaporation sources, thereby forming said deposited patterns conforming to said pixels on said substrate.

2. The method of claim 1 , wherein said deposited pattern is a pattern of organic light-emitting layer.