| CPC H10K 59/122 (2023.02) [H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 71/441 (2023.02); H10K 71/861 (2023.02)] | 10 Claims |
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1. A method for manufacturing an organic electro luminescence display panel, comprising:
a step of preparing a substrate;
a step of arranging a plurality of pixel electrodes in a matrix on an upper face of the substrate;
a step of forming, between the plurality of pixel electrodes adjacent to each other at least in a row direction on the substrate, a plurality of elongated column banks extending in a column direction and formed in parallel to each other;
a step of detecting a missing portion at which part of a column bank of the plurality of elongated column banks does not exist;
a step of forming, above the plurality of pixel electrodes, a pair of repair banks in each of two gaps between the column bank of the plurality of elongated column banks in which the missing portion has been detected and column banks adjacent on opposite sides in the row direction of the column bank, wherein
the pair of repair banks are not connected with the column bank,
the pair of repair banks are connected with row banks of a plurality of elongated row banks,
each repair bank of the pair of repair banks is L-shaped, and
a first side of the L-shaped repair bank is parallel to the plurality of elongated column banks and a second side of the L-shaped repair bank is parallel to the plurality of elongated row banks;
a step of forming a light emitting layer by applying a first ink that contains an organic light emitting material to each of the gaps between the plurality of elongated column banks; and
a step of forming a common electrode above the light emitting layer, wherein
the step of forming the pair of repair banks includes
a first step of forming the pair of repair row banks at positions spaced by at least a predetermined distance in the column direction above the plurality of pixel electrodes that exist in the two gaps and whose positions in the column direction are same, at least at part thereof, as that of the missing portion, and
a second step of forming repair column banks that connect, in the column direction, an end portion of each of the pair of repair row banks that are not connected in the row direction to the column bank that has the missing portion to a closest portion of the column bank.
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