Organic electroluminescent panel and luminescent unit
An organic electroluminescent panel includes a plurality of partition walls, an organic light-emitting layer, and a protective layer. The plurality of partition walls define a pixel region, and include an organic material. The organic light-emitting layer crosses over the plurality of partition walls. The protective layer is disposed between each of the partition walls and the organic light-emitting layer, and has a moisture permeability lower than a moisture permeability of any of the partition walls.
1. An organic electroluminescent panel comprising:
a plurality of partition walls that define a pixel region and include an organic material;
an organic light-emitting layer that crosses over the plurality of partition walls; and
a hole injection layer disposed between each of the partition walls and the organic light-emitting layer and having a moisture permeability lower than a moisture permeability of any of the partition walls, the hole injection layer also crosses over at least entire sides of the plurality of partition walls that define the pixel region,
wherein the hole injection layer covers a portion and exposes a portion of a top surface of each of the partition walls, and
wherein the hole injection layer doubles as a protective layer.
2. The organic electroluminescent panel according to claim 1 , further comprising a plurality of pixels disposed in a matrix form in the pixel region, wherein
each of the pixels includes a plurality of subpixels, and
the plurality of subpixels are arranged in line in a predetermined direction, are defined by the plurality of partition walls, and share the organic light-emitting layer.
3. The organic electroluminescent panel according to claim 2 , wherein the subpixels include and share the hole injection layer.
4. The organic electroluminescent panel according to claim 3 , wherein the hole injection layer covers an entire surface of a portion, of each of the partition walls, that defines the plurality of subpixels.
5. The organic electroluminescent panel according to claim 3 , wherein the hole injection layer is made of an inorganic material.
6. The organic electroluminescent panel according to claim 1 , wherein the hole injection layer exposes all or a portion of a side surface of each of the partition walls.
7. The organic electroluminescent panel according to claim 6 , wherein the hole injection layer is made of an inorganic material.
8. The organic electroluminescent panel according to claim 7 , wherein the hole injection layer is made of a metal material.
9. The organic electroluminescent panel according to claim 1 , wherein the organic light-emitting layer comprises a coating layer.
10. The organic electroluminescent panel according to claim 1 , further comprising a flexible substrate that is in contact with bottom surfaces of the plurality of partition walls, and supporting the plurality of partition walls.
11. A luminescent unit comprising:
an organic electroluminescent panel; and
a driver that drives the organic electroluminescent panel, the organic electroluminescent panel including
a plurality of partition walls that define a pixel region and include an organic material,
an organic light-emitting layer that crosses over the plurality of partition walls, and
a hole injection layer disposed between each of the partition walls and the organic light-emitting layer and having a moisture permeability lower than a moisture permeability of any of the partition walls, the hole injection layer also crosses over at least entire sides of the plurality of partition walls that define a plurality of pixels,
wherein the hole injection layer covers a portion and exposes a portion of a top surface of each of the partition walls, and
wherein the hole injection layer doubles as a protective layer.