Abstract: A display panel and a display device. The display panel includes a substrate, a light-emitting layer and a light adjusting layer. The light-emitting layer includes a plurality of light-emitting units formed on a side of the substrate. The light adjusting layer is arranged on a side of the light-emitting layer away from the substrate and includes a first adjusting layer and a second adjusting layer, the first adjusting layer and the second adjusting layer are alternately stacked along a direction away from the substrate, a refractive index of the first adjusting layer is less than a refractive index of the second adjusting layer, and the first adjusting layer is arranged on each of an end of the light adjusting layer close to the substrate and an end of the light adjusting layer away from the substrate.

Abstract: A display panel, a display module and a display device. The display panel includes: a substrate in a stacked arrangement, a light-emitting device layer, a light extraction layer assembly, and a barrier layer; wherein the light extraction layer assembly includes at least two light extraction layers in a stacked arrangement, the at least two light extraction layers including a primary extraction layer and at least one secondary extraction layer disposed on one side of the primary extraction layer or on two opposite sides of the primary extraction layer, and the primary extraction layer has a refractive index greater than that of the secondary extraction layer; and the secondary extraction layer has a refractive index greater than that of the barrier layer.

Abstract: A display panel, a display module and a display device. The display panel comprises a substrate, a light emitting device layer disposed on one side of the substrate, a light extraction layer assembly disposed on the side of the light emitting device layer facing away from the substrate and an encapsulation structure wherein the light extraction layer assembly comprises at least two light extraction layers arranged in a stacked configuration, and the at least two light extraction layers comprise a primary extraction layer and at least one secondary extraction layer disposed on one side or two opposite sides of the primary extraction layer, and a refractive index n5 of the primary extraction layer is greater than a refractive index of the secondary extraction layer.