Display panel and display apparatus

A display panel, comprising:

• a substrate;
• a plurality of light emitting devices with different light emitting areas, wherein the light emitting devices are arranged on the substrate;
• a first refractive index layer, comprising a plurality of opening regions corresponding to the plurality of light emitting devices;
• wherein projections of the plurality of opening regions on the substrate at least partially overlap projections of the plurality of light emitting devices on the substrate, and the first refractive index layer is configured to reflect light emitted by the plurality of light emitting devices on a side wall of at least part of the plurality of opening regions;
• and
• a second refractive index layer, arranged on a side, facing away from the substrate, of the first refractive index layer;
• wherein the second refractive index layer is arranged on a whole surface and fills the plurality of opening regions, and a refractive index of the second refractive index layer is greater than a refractive index of the first refractive index layer;
• wherein the substrate comprises a plurality of first sub-pixel regions, a plurality of second sub-pixel regions and a plurality of third sub-pixel regions of different colors;
• the plurality of light emitting devices with the different light emitting areas comprise a first area light emitting device, a second area light emitting device and a third area light emitting device;
• the first area light emitting device corresponds to the first sub-pixel region, the second area light emitting device corresponds to the second sub-pixel region, and the third area light emitting device corresponds to the third sub-pixel region;
• a light-emitting efficiency of the third sub-pixel region is lower than a light-emitting efficiency of the first sub-pixel region and a light-emitting efficiency of the second sub-pixel region;
• wherein the display panel further comprising a micro-lens structure disposed in the opening region corresponding to a blue light emitting device in the plurality of light emitting devices;
• an area of an orthographic projection of the micro-lens structure on the substrate is smaller than an area of an orthographic projection of the at least part of the plurality of opening regions on the substrate;
• and the micro-lens structure and the first refractive index layer are arranged on a same layer.