| 摘要 |
<p>Disclosed is an organic El element comprising a reflective layer, a first electrode, a light-emitting layer, a second electrode and a semi-permeable reflective layer arranged in this order. The semi-permeable reflective layer comprises an optical control layer that is arranged in contact with an opposite surface to the light-emitting layer side of the second electrode and comprises an insulating material, the optical control layer has a refractive index of 1.915 or more at a wavelength of 450 nm, and the optical film thickness of the optical control layer, which is the product of the refractive index and the thickness of the optical control layer, is 70.174 to 140.347 nm inclusive.</p> |
