Organic electronic device manufacturing method and organic EL device manufacturing method

摘要

A manufacturing method including: forming a first electrode; forming a first bank; forming a first organic functional film; forming a second bank; forming a second organic functional film; and forming a second electrode. In the forming of the second bank, the second bank is formed such that, in plan view, a bottom edge of a sidewall surface of the second bank facing the second aperture is located at the same position as or is set back from a bottom edge of a sidewall surface of the first bank facing the first aperture. In the forming of the second organic functional film, the droplet of the second ink is applied such that an upper edge of the second organic functional film within the second aperture is located at a same level as or at a higher level than the bottom edge of the sidewall surface of the second bank.

主权项

1. An organic electronic device manufacturing method, comprising:
forming a first electrode on a substrate; forming, on the substrate, a first bank defining a first aperture, such that at least a portion of the first electrode is exposed at a bottom of the first aperture; forming a first organic functional film by applying a droplet of a first ink into the first aperture, the first ink containing a first organic material; after the forming of the first organic functional film, forming, on the first bank, a second bank defining a second aperture, the second aperture communicating with the first aperture; forming a second organic functional film by applying a droplet of a second ink into the second aperture so as to cover a surface of an exposed portion of the first organic functional film, the second ink containing a second organic material differing from the first organic material; and forming a second electrode on the second organic functional film, wherein in the forming of the second bank, the second bank is formed such that, in plan view, a bottom edge of a sidewall surface of the second bank facing the second aperture is located at the same position as or is set back from a bottom edge of a sidewall surface of the first bank facing the first aperture, and in the forming of the second organic functional film, the droplet of the second ink is applied such that an upper edge of the second organic functional film within the second aperture is located at a same level as or at a higher level than the bottom edge of the sidewall surface of the second bank.