Organic electroluminescent display panel, manufacturing method thereof, and display device
AssigneesHefei Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsKui Gong, Xianxue Duan, Zhihai Zhang
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Abstract
An organic electroluminescent display panel is provided, including a pixel defining layer. The pixel defining layer includes a plurality of openings and a bank surrounding each of the plurality of openings and defining a plurality of pixel areas. The bank is composed of a hydrophilic material pattern layer and a conductive hydrophobic pattern layer which are stacked from bottom to top.
Claims11
An organic electroluminescent display panel, comprising:
- a pixel defining layer disposed on a substrate, the pixel defining layer comprising a plurality of openings and a bank surrounding each of the openings and defining a plurality of pixel areas, wherein:
- the bank is composed of a hydrophilic material pattern layer and a conductive hydrophobic pattern layer which are stacked from bottom to top over the substrate;
- the conductive hydrophobic pattern layer comprises a hydrophobic resin, a photosensitizer, and a conductive material,
- the conductive material comprises at least one of carbon nanotubes and graphene, and the mass percentage content of the conductive material is 5% to 20% of the conductive hydrophobic pattern layer by mass.
A manufacturing method of an organic electroluminescent display panel, comprising:
- providing an organic light-emitting diode (OLED) array substrate;
- forming a hydrophilic material layer on the OLED array substrate;
- forming a conductive hydrophobic layer on the hydrophilic material layer;
- patterning the conductive hydrophobic layer to form a conductive hydrophobic pattern layer;
- and
- taking fluorine-based gas as a working gas and the conductive hydrophobic pattern layer as an anti-etching layer, plasma-etching the hydrophilic material layer to form a hydrophilic material pattern layer and a conductive hydrophobic pattern layer having superhydrophobicity, wherein:
- the hydrophilic material pattern layer and the conductive hydrophobic pattern layer having superhydrophobicity form a pixel defining layer comprising a plurality of openings and a plurality of banks;
- the conductive hydrophobic pattern layer comprises a hydrophobic resin, a photosensitizer, and a conductive material;
- the conductive material comprises at least one of carbon nanotubes and graphene, and the mass percentage content of the conductive material is 5% to 20% of the conductive hydrophobic layer by mass.
A display device comprising an organic electroluminescent display panel, the organic electroluminescent display panel comprising:
- a pixel defining layer disposed on a substrate, the pixel defining layer comprising a plurality of openings and a bank surrounding each opening and defining a plurality of pixel areas, wherein:
- the bank is composed of a hydrophilic material pattern layer and a conductive hydrophobic pattern layer which are stacked from bottom to top over the substrate;
- the conductive hydrophobic pattern layer comprises a hydrophobic resin, a photosensitizer, and a conductive material;
- and
- the conductive material comprises at least one of carbon nanotubes and graphene, and the mass percentage content of the conductive material is 5% to 20% of the conductive hydrophobic pattern layer by mass.
Dependencies are inferred from the claim text.