Abstract: A display panel includes: a plurality of light-emitting devices on a substrate, wherein each light-emitting device is configured to emit light of a preset color; a color conversion layer including a plurality of light exiting parts, wherein each light exiting part corresponds to one light-emitting device, and the light exiting part is configured to receive light emitted by the corresponding light-emitting device and emit light of a color same as or different from the preset color; and an optical layer between the color conversion layer and the plurality of light-emitting devices, wherein the optical layer is configured to transmit at least a portion of the light of the preset color and reflect the light of a color different from the preset color emitted by the color conversion layer; wherein second electrodes corresponding to at least two light exiting parts, which emits light of different colors, have different reflectivities.

Abstract: A display substrate includes a backplane, first light-emitting devices capable of emitting first color light, second light-emitting devices capable of emitting second color light that are all disposed on the backplane, a low-refractive-index intercalation layer disposed at a side, away from the backplane, of the first light-emitting devices and the second light-emitting devices, and an encapsulation layer. The encapsulation layer includes a first inorganic barrier layer, a first organic barrier layer and a second inorganic barrier layer that are sequentially stacked on a side of the low-refractive-index intercalation layer away from the backplane. A refractive index of the low-refractive-index intercalation layer is less than a refractive index of the first inorganic barrier layer.