Array substrate and manufacturing method therefor, and display panel

A manufacturing method of an array substrate, comprising:

• forming a pixel defining layer comprising a plurality of opening areas on a substrate;
• and
• forming a plurality of quantum dot light emitting devices in the plurality of opening areas of the pixel defining layer, the quantum dot light-emitting device comprising a quantum dot light emitting layer, a material of the quantum dot light emitting layer being a quantum dot material,
• wherein forming the pixel defining layer on the substrate comprises:
• coating a solution including magnetic particles on the substrate to form a pixel defining film;
• applying a first magnetic field to the substrate so that the first magnetic field acts on an area where the pixel defining layer is to be formed;
• and
• removing the pixel defining film in an area, where no magnetic field acts on, of the pixel defining film, and curing and cross-linking the magnetic particles in the pixel defining film that is remained by heating or irradiating to form the pixel defining layer including the plurality of opening areas.

A manufacturing method of an array substrate, comprising:

• forming a plurality of quantum dot light emitting devices on a substrate, wherein each of the plurality of quantum dot light emitting devices comprises a quantum dot light emitting layer, a material of the quantum dot light emitting layer is a quantum dot material, and the quantum dot material is magnetic, and forming the quantum dot light emitting layer comprises:
• coating a solution including the quantum dot material on the substrate to form a quantum dot light emitting film;
• applying a second magnetic field to the substrate so that the second magnetic field acts on an area where the quantum dot light emitting layer is to be formed;
• removing the quantum dot light emitting film in an area, where no magnetic field acts on, of the quantum dot light emitting film, and curing and cross-linking the quantum dot material in the quantum dot light emitting film that is remained by heating or irradiating to form the quantum dot light emitting layer;
• after forming the plurality of quantum dot light emitting devices, the method further comprises:
• forming a pixel defining layer including a plurality of opening areas on the substrate, wherein the plurality of quantum dot light emitting devices are in one-to-one correspondence with the plurality of opening areas and are located in the plurality of opening areas.