Display panel and preparation method therefor, and display device

A method for preparing a display panel, comprising:

• acquiring a base substrate;
• and
• forming a first electrode, a light-emitting layer, a protective layer, and a second electrode sequentially on a side of the base substrate;
• wherein a side of the light-emitting layer away from the base substrate is embedded with a target particle, and a gap in communication with the side of the light-emitting layer away from the base substrate is defined between the light-emitting layer and the target particle;
• and
• wherein the protective layer at least comprises a first portion insulated from both the first electrode and the second electrode, wherein the first portion fills the gap.

A display device, comprising:

• a power supply assembly, and a display panel;
• wherein
• the power supply assembly is configured to supply power to the display panel;
• and
• the display panel comprises:
• a base substrate, and a first electrode, a light-emitting layer, a protective layer, and a second electrode which are sequentially laminated on a side of the base substrate;
• wherein
• a side of the light-emitting layer away from the base substrate is embedded with a target particle, and a gap in communication with the side of the light-emitting layer away from the base substrate is defined between the light-emitting layer and the target particle;
• and
• the protective layer at least comprises a first portion insulated from both the first electrode and the second electrode, wherein the first portion fills the gap.