Light-emitting device
摘要
說明書
To solve the problem described above, a light-emitting device according to an aspect of the disclosure includes a plurality of types of light-emitting elements each having a light emission peak wavelength in a different wavelength band. The plurality of types of light-emitting elements each include, in this order, an anode, a light-emitting layer including quantum dots, and a cathode, a layer having hole transport properties and including a metal chalcogenide being between the anode and the light-emitting layer, and an intermediate layer including an organic material being between the light-emitting layer and at least the layer including the metal chalcogenide of, among the plurality of types of light-emitting elements, a light-emitting element that emits light in a wavelength band having the shortest light emission peak wavelength. A distance between the light-emitting layer and the layer including the metal chalcogenide of, among the plurality of types of light-emitting elements, the light-emitting element that emits light in a wavelength band having the shortest light emission peak wavelength is greater than a distance between the light-emitting layer and the layer including the metal chalcogenide of each of the other light-emitting elements.
According to an aspect of the disclosure, it is possible to provide a light-emitting device that includes light-emitting elements, each provided with a layer including a metal chalcogenide having hole transport properties, and is capable of achieving a balance in luminance between a light-emitting element that emits light in a wavelength band having the shortest light emission peak wavelength and the other light-emitting elements.
