Patent ID: 7487813

Claim:
A manufacturing line for manufacturing an organic EL display, comprising: a first coating unit for producing a processed printed film that includes a printed film and an adhesive layer thereon formed by coating an adhesive to the printed film; and a laminating unit for laminating a processed multi-layered film including at least a barrier layer, a transparent or semi-transparent electrode, and an insulating layer to the processed printed film with automatic registration to produce a laminated film, and a second printing unit for applying an organic EL ink to the hole-injection layer coating film to form a light emitting layer on the hole-injection layer coating film to produce a light emitting layer coating film, wherein the second printing unit comprises: a printing cylinder at least one printing area of the printing cylinder; a plurality of ink supply members for supplying inks different, in kinds, from each other to the printing area of the printing cylinder; a doctor blade provided on the printing cylinder immediately downstream with respect to the ink supply members, for wiping an excessive ink; a plurality of detecting systems, each detecting an amount of the corresponding ink accumulated on the printing area of the printing cylinder; and a control system for controlling the plurality of ink supply members to regulate an amount of ink supplied by each of the plurality of ink supply members so as to bring the amount of the corresponding ink accumulated into agreement with a predetermined value established for the ink accumulated wherein each of the plurality of detecting systems includes a displacement sensor between the ink supply members and the doctor blade for detecting a surface portion of the accumulated ink on the printing cylinder.