Organic EL display device
View Patent ↗An organic EL display device includes a bank having an inclined surface, a first electrode formed on the inclined surface, an organic film including a light emitting layer and directly contacting the first electrode on the inclined surface, and a second electrode directly contacting the organic film on the inclined surface.
1. An organic EL display device comprising:
a substrate;
a planarization layer on the substrate;
a first organic light emitting element on the planarization layer;
a second organic light emitting element on the planarization layer; and
a bank on the planarization layer, wherein
the first organic light emitting element includes a first pixel electrode, an organic layer including light emitting layer on the first pixel electrode, and an oppose electrode on the organic layer,
the second organic light emitting element includes a second pixel electrode, the organic layer on the second pixel electrode, and the oppose electrode on the organic layer,
the first and second organic light emitting elements share the organic layer and the oppose electrode,
the bank covers an upper surface of a part of the first pixel electrode,
the bank has an opening,
all formation region of the first organic light emitting element is arranged in the opening so that an upper surface of the first pixel electrode is in contact with a lower surface of the organic layer, an upper surface of the organic layer is in contact with a lower surface of the oppose electrode, and all region of the first pixel electrode in the all formation region has the same distance between the substrate and the first pixel electrode,
the second pixel electrode is arranged on an inclined surface of the bank, and
the second organic light emitting element is arranged on the inclined surface.
2. The organic EL display device according to claim 1 , wherein
the inclined surface includes a plurality of surfaces having different orientations, and
the second organic light emitting element is arranged on the surfaces.
3. The organic EL display device according to claim 1 , wherein
the inclined surface includes two surfaces which are a valley shape, and
the second organic light emitting element is formed on both of the two surfaces continuously.
4. The organic EL display device according to claim 1 , wherein
each of the first and second organic light emitting element is plural, and
the first and second organic light emitting elements are arranged alternately in a first direction.
5. The organic EL display device according to claim 1 , wherein
the first and second organic light emitting elements are arranged alternately in a second direction that differs from the first direction.
6. The organic EL display device according to claim 5 , further comprising:
the all formation region is in parallel with the substrate.