Patent ID: 7785942

Claim:
A method for manufacturing an active matrix organic EL display device including a pixel that has an organic EL element and a polysilicon TFT for controlling said organic EL element which are disposed adjacent to each other, the pixel being formed in each of regions partitioned into a matrix by a plurality of intersecting data lines and scanning lines, comprising the steps of: forming on said substrate at least one cathode electrode wiring, then forming said polysilicon TFT on a substrate, and forming a cathode electrode of said organic EL element in a strip to be provided continuously over two or more adjacent pixels in a direction of said data line or scanning line, the position of which is opposite the side where said polysilicon TFT is connected, on said substrate with electron beam vapor deposition using a vapor deposition mask covering at least a region where said polysilicon TFT is formed, wherein said cathode electrode wiring extends in a direction of the narrow area of the cathode electrode, and in forming said cathode electrode in the strip, connecting each of said cathode electrodes formed in strips to said cathode electrode wiring through contact holes.