TANDEM-TYPE ORGANIC LIGHT-EMITTING DIODE AND DISPLAY DEVICE

摘要

A tandem-type organic light-emitting diode (OLED) and a display device are provided. The tandem-type OLED includes a substrate, a first electrode, a first light-emitting unit, a charge generate layer, a second light-emitting unit and a second electrode. The first electrode is disposed on the substrate, the first light-emitting unit is disposed on the first electrode, the charge generate layer is disposed on the first light-emitting unit is disposed on the first light-emitting unit, the second light-emitting unit is disposed on the charge generate layer, and the second electrode is disposed on the second light-emitting unit. The charge generate layer includes stacked first electron transport layer and active metal layer. Accordingly, the tandem-type OLED with stable performance is obtained and in favor of mass production.

主权项

1. A tandem-type organic light-emitting diode comprising:
a substrate; a first electrode, disposed on the substrate; a first light-emitting unit, disposed on the first electrode; a charge generating layer, disposed on the first light-emitting unit; a second light-emitting unit, disposed on the charge generating layer and thereby the charge generating layer is arranged between the first light-emitting unit and the second light-emitting unit; a second electrode, disposed on the second light-emitting unit; wherein the charge generating layer comprises a first hole transport layer, an electron-hole pair generating layer, an active metal layer and a first electron transport layer sequentially stacked in that order, the active metal layer and the first electron transport layer are disposed in the form of individual layers; wherein the first light-emitting unit a second hole transport layer, a first light-emitting layer and a second electron transport layer sequentially stacked in that order; wherein the second light-emitting unit comprises a third hole transport layer, a second light-emitting layer and a third electron transport layer sequentially stacked in that order.