Organic light-emitting diode and display device

An organic light-emitting diode (OLED), comprising:

• an organic light-emitting layer and a first light ray adjusting layer,
• wherein the organic light-emitting layer is configured to generate at least a first incident light ray and a second incident light ray into the first light ray adjusting layer to form a first refracted light ray and a second refracted light ray respectively, a refraction angle of the first refracted light ray is smaller than that of the second refracted light ray, a first refractive index of the first light ray adjusting layer on a propagation path of the second refracted light ray is greater than that of the first light ray adjusting layer on a propagation path of the first refracted light ray,
• the OLED further comprises a first electrode and a second electrode, wherein the organic light-emitting layer is located between the first electrode and the second electrode, the first light ray adjusting layer is located on a side of the first electrode acing away from the organic light-emitting layer,
• the OLED further comprises a second light ray adjusting layer,
• wherein the organic light-emitting layer is configured to generate at least a third incident light ray and a fourth incident a into the second light ray adjusting layer to form a third refracted light ray and a fourth refracted light ray respectively, a refraction angle of the third refracted light ray is smaller than that of the fourth refracted light ray, and a second refractive index of the second light ray adjusting layer, on a propagation path of the fourth refracted light ray is greater than that of the second light ray adjusting layer on a propagation path of the third refracted, light ray, and the second light ray adjusting layer is located between the second electrode and the organic light-emitting layer.