Light-emitting element, light-emitting apparatus, display apparatus, and electronic device

Abstract

A light-emitting element includes a cathode, an anode, a red-light-emitting layer that is disposed between the cathode and the anode and emits red light, a blue-light-emitting layer that is disposed between the red-light-emitting layer and the cathode and emits blue light, a green-light-emitting layer that is disposed between the blue-light-emitting layer and the cathode and emits green light, and an intermediate layer that is disposed between and in contact with the red-light-emitting layer and the blue-light-emitting layer and functions so as to control the transfer of positive holes and electrons between the red-light-emitting layer and the blue-light-emitting layer, wherein the intermediate layer contains a first material and a second material different from the first material, the red-light-emitting layer contains a material of the same type as the first material, and each of the blue-light-emitting layer and the green-light-emitting layer contains a material of the same type as the second material.

Dependencies are inferred from the claim text.