PROBLEM TO BE SOLVED: To provide an organic electroluminescent element with high emission efficiency and a long life.SOLUTION: An organic electroluminescent element includes a hole transport region HTR. The hole transport region HTR includes a first hole transport layer HTL1 containing a hole transport material expressed by a particular chemical formula, and a second hole transport layer HTL2 containing a third hole transport material expressed by the chemical formula (3) or a fourth hole transport material expressed by the chemical formula (4).SELECTED DRAWING: Figure 1
【課題】発光効率が高く、長寿命の有機電界発光素子を提供する。【解決手段】正孔輸送領域HTRが、特定の化学式で示される正孔輸送材料を含む第1正孔輸送層HTL1、及び下記の化学式(3)で示される第3正孔輸送材料又は下記の化学式(4)で示される第4正孔輸送材料を含む第2正孔輸送層HTL2を含む有機電界発光素子。【選択図】図1
ORGANIC ELECTROLUMINESCENT ELEMENT
有機電界発光素子
2017-10-05
Patent
Electronic Resource
Japanese
IPC: | H10K |
Organic luminescent material, organic electroluminescent element and display device
European Patent Office | 2024
|ORGANIC ELECTROLUMINESCENT ELEMENT AND VEHICLE LAMP FITTING
European Patent Office | 2017
|ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING UNIT FOR A VEHICLE
European Patent Office | 2017
|ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING UNIT FOR A VEHICLE
European Patent Office | 2018
|