Method for manufacturing display panel including a hole

A method for manufacturing a display panel, the display panel comprising a display area, a hole area, and a transition area located between the display area and the hole area, the method comprising steps of:

• providing a semi-finished product of the display panel, the semi-finished product comprising a substrate and a partition ring disposed on a side of the substrate and located in the transition area, the partition ring being disposed around the hole area;
• forming a desorption layer on a surface of the substrate and in the hole area, the desorption layer being made of a material with a sublimation temperature ≤200° C.;
• forming a luminescent structure layer in the display area and the transition area on the side of the substrate, and forming a luminescent structure layer on a surface of the desorption layer on the side away from the substrate and in the hole area, a portion of the luminescent structure layer located in the transition area being partitioned by the partition ring;
• and
• sublimating the material of the desorption layer to remove a portion of the luminescent structural layer located in the hole area;
• wherein the step of providing the semi-finished product of the display panel comprises steps of:
• forming a pixel circuit layer, a flattening layer, a first electrode layer and a pixel defining layer sequentially on the surface of the substrate, and forming a blind hole extending towards the substrate from a surface of the pixel defining layer away from the substrate in the hole area;
• and
• forming the partition ring located in the transition area and a spacer located in the display area on the surface of the pixel defining layer away from the substrate;
• wherein the step of forming the desorption layer on the surface of the substrate and in the hole area comprises steps of:
• blocking the display area and the transition area with a mask;
• and
• evaporating the material of the desorption layer onto the surface of the substrate located in the hole area to form the desorption layer.