| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electric field light-emitting display device and its manufacturing method wherein the manufacturing is easily carried out, the yield is improved and a large-sized screen is made possible. SOLUTION: A positive electrode layer 12 and an insulating layer 15 are laminated on a substrate 11, and a penetrating part 15A is formed in the stripe state to be orthogonal to the positive electrode layer 12 of the depth not reaching the positive electrode layer 12 in this insulating layer 15. Next, Ni plating is applied on the penetrating part 15A, and at the same time, inside is filled up, and a projection H projecting on the insulating layer 15 is formed, and a picture element separating part 16A is made to be bolt-shaped in a cross- sectional shape. A negative electrode layer 18 is formed at one side on the substrate state 11 at this state. At that time, in the picture element separating part 16A, a projection H is one step higher than the other region on the substrate 11, and the negative electrode 18 is automatically divided at the projection part H. By this, patterning of the negative electrode layer 18 is precisely carried out without using a metal mask or an insulating wall or the like.
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