Organic light-emitting display panel and display device

An organic light-emitting display panel, comprising:

• an array substrate, the array substrate comprising a plurality of driving elements;
• and
• a plurality of organic light-emitting components corresponding to the plurality of driving elements,
• wherein each of the plurality of light-emitting components comprises an anode, a cathode and an organic functional layer arranged between the anode and the cathode,
• wherein the organic functional layer comprises a hole transmission region, a light-emitting layer, and an electron transmission region stacked in a sequence from the anode to the cathode, wherein the hole transmission region directly contacts the light-emitting layer,
• wherein with respect to visible light having a wavelength, a refractive index of the light-emitting layer is less than a refractive index of the electron transmission region, and the refractive index of the light-emitting layer is less than a refractive index of each part of the hole transmission region,
• wherein the electron transmission region comprises a first electron transmission layer and a second electron transmission layer, the second electron transmission layer and the first electron transmission layer being stacked in a sequence from the light-emitting layer to the cathode, and the hole transmission region comprises a first hole transmission layer and a second hole transmission layer stacked in a sequence from the anode to the light-emitting layer, and
• wherein with respect to the visible light having a wavelength of 460 nm, the refractive index of the light-emitting layer is n1, a refractive index of the first electron transmission layer is n21, and a refractive index of the second electron transmission layer is n22, a refractive index of the first hole transmission layer is n31, and a refractive index of the second hole transmission layer is n32, where n21−n22>0.1, n22−n1>0.1, n31−n32>0.1 and n32−n1>0.1.