Display panel and preparation method thereof

The invention provides a display panel and a preparation method thereof. The display panel comprises a substrate, a plurality of light emitting devices, an isolation structure, a first packaging layer and a transparent protection layer, the isolation structure is located on the substrate and provided with a plurality of first openings defining the light-emitting devices respectively, the first packaging layer is located on the sides, away from the substrate, of the light-emitting devices and comprises a plurality of packaging units corresponding to the first openings respectively, and the packaging units cover the light-emitting devices in the corresponding first openings. The transparent protection layer is located on the side, away from the substrate, of the first packaging layer and comprises a plurality of transparent protection units corresponding to the first openings respectively, and the first openings are filled with the transparent protection units. By arranging the transparent protection layer, the