Display panel and manufacturing method thereof

A display panel, comprising:

• a substrate;
• an encapsulation layer disposed on a surface of the substrate;
• a black matrix layer disposed on the encapsulation layer, wherein the black matrix layer comprises a through hole, and the through hole extends through the black matrix layer to expose the encapsulation layer;
• and
• an oleophobic layer covering the black matrix layer;
• wherein a surface of the black matrix layer is provided with a polar anionic group, the oleophobic layer comprises a first compound and a second compound, the first compound comprises an organic cationic polymer, the second compound comprises a hydrophobic anionic compound, the first compound is adsorbed on the polar anionic group, and the second compound is adsorbed on the first compound.

A manufacturing method of a display panel, comprising:

• providing a substrate;
• forming an encapsulation layer on the substrate;
• forming a black matrix layer on the encapsulation layer, wherein the black matrix layer comprises a through hole, and the through hole extends through the black matrix layer to expose the encapsulation layer;
• and
• forming an oleophobic layer on a surface of the black matrix layer, comprising:
• forming a polar anionic group on the surface of the black matrix layer to form a first intermediate product;
• placing the first intermediate product in an aqueous solution comprising a first compound such that the first compound is adsorbed on the polar anionic group on the surface of the black matrix layer to form a second intermediate product, wherein the first compound comprises an organic cationic polymer;
• and
• placing the second intermediate product in an aqueous solution comprising a second compound such that the second compound is adsorbed on the first compound, and the first compound and the second compound together form the oleophobic layer, wherein the second compound comprises a hydrophobic anionic compound.