Provided are an organic electroluminescence element, an illumination device, and a display device having lower driving voltage and excellent luminous efficiency. An organic electroluminescence element has a supporting substrate; and a cathode, a light emitting layer and an adjacent layer provided on the supporting substrate, wherein the adjacent layer is arranged adjacent to the outer side of the cathode (i.e., the side opposite to the light emitting layer), wherein the cathode is a transparent layer containing a metal and having a film thickness of 2 nm or more but less than 10 nm; and wherein the adjacent layer has a refractive index of between 1.6 and 1.95, a film thickness of between 15 nm and 180 nm, and contains no light scattering particle.
本发明提供了一种具有较低驱动电压和出色发光效率的有机电致发光元件、照明装置和显示装置。有机电致发光元件具有一个支撑基板;以及一个阴极、一个发光层和一个邻接层,其中邻接层布置在阴极的外侧(即与发光层相对的一侧),而阴极是一个透明层、其中,阴极是含有
金属的透明层,薄膜厚度为 2 nm 或以上,但小于 10 nm;邻接层的折射率在 1.6 和 1.95 之间,薄膜厚度在 15 nm 和 180 nm 之间,并且不含光散射颗粒。