Display panel, display device, and method for manufacturing the same

A display device, comprising:

• a display panel, comprising:
• a supporting substrate;
• an isolation portion disposed on one side of the supporting substrate, the isolation portion defining a plurality of openings;
• a filter layer comprising a plurality of filter units, each of the filter units located in each of the openings;
• a light conversion layer comprising a plurality of light conversion units, each of the light conversion units disposed in one of the openings and the light conversion units located on a side of the filter units away from the supporting substrate;
• and
• a light-shielding portion disposed on a side of the isolation portion away from the supporting substrate, the light-shielding portion further extending to cover at least part of a side wall of a side of the light conversion unit facing the isolation portion.

A method for manufacturing a display panel, comprising:

• providing a supporting substrate;
• forming an isolation portion and a filter layer on one side of the supporting substrate, wherein the isolation portion defines a plurality of openings, and the filter layer comprises a plurality of filter units, each of the filter units disposed in each of the openings;
• preparing a light conversion layer on a side of the filter units away from the supporting substrate, wherein the light conversion layer comprises a plurality of light conversion units, each of the light conversion units located in each of the openings, and an orthographic projection of each of the light conversion units on the supporting substrate is less than an orthographic projection of each of the openings on the supporting substrate;
• and
• forming a light-shielding layer on a side of the isolation portion away from the supporting substrate, and patterning the light-shielding layer to form a light-shielding portion, the light-shielding portion covering the isolation portion and a side of the light conversion unit facing the isolation portion, and being filled between each of the light conversion units and the isolation portion.