摘要:
A cascaded organic electroluminescent device includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer and an electron-transporting layer. The device also includes a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer, and a p-type doped organic layer wherein the p-type doped organic layer includes a dihydrophenazine derivative compound.
摘要:
A tandem OLED includes an anode, a cathode, and at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-injecting layer, one hole-transporting layer, one organic light-emitting layer, one electron-transporting layer, and one electron-injecting layer. The OLED also includes at least one intermediate connector, wherein each of the intermediate connectors includes at least one layer, and wherein each of the intermediate connectors is disposed between electroluminescent units, wherein the thickness of each layer in each of the electroluminescent units and the intermediate connectors is selected to satisfy the test condition that the voltage drop from the anode to the cathode is less than 4.0 V×N (the number of electroluminescent units) at 20 mA/cm2.
摘要翻译:串联OLED包括阳极,阴极和设置在阳极和阴极之间的至少两个电致发光单元,其中每个电致发光单元包括至少一个空穴注入层,一个空穴传输层,一个有机发光 层,一个电子传输层和一个电子注入层。 OLED还包括至少一个中间连接器,其中每个中间连接器包括至少一个层,并且其中每个中间连接器设置在电致发光单元之间,其中每个电致发光单元和中间层中的每个层的厚度 选择连接器以满足在20mA / cm 2时从阳极到阴极的电压降小于4.0VVN(电致发光单元的数量)的测试条件。
摘要:
A multilayer electroluminescent device comprising a cathode, an anode, a light emitting layer, and a layer disposed between the cathode and anode containing a dihydrophenazine compound is disclosed.
摘要:
A tandem white OLED includes an anode; a cathode; at least one broadband electroluminescent unit disposed between the anode and the cathode, wherein the broadband electroluminescent unit includes at least one light-emitting layer and produces at least one color component having an intensity less than desired; at least one color-compensating electroluminescent unit disposed between the anode and the cathode, wherein the color-compensating electroluminescent unit is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector disposed between each adjacent electroluminescent unit, wherein the intermediate connector has no direct connection to an external power source.
摘要:
An OLED device comprising an anode and a cathode spaced from the anode, two EL units disposed between the anode and cathode, such EL units being in contact with each other and each having at least one light emitting layer; and each EL unit further includes a p-type doped organic hole transporting layer disposed between the light emitting layer and the anode, and an n-type doped organic electron transporting layer disposed between the light emitting layer and the cathode.
摘要:
A cascaded organic electroluminescent device includes an anode and a cathode. The device also includes a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer, an electron-transporting layer, and an electroluminescent zone formed between the hole-transporting layer and the electron-transporting layer wherein the physical spacing between adjacent electroluminescent zones is more than 90 nm; and a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer and a p-type doped organic layer forming a transparent p-n junction structure wherein the resistivity of each of the doped layers is higher than 10 Ω-cm.
摘要:
A cascaded organic electroluminescent device with connecting units having improved voltage stability is disclosed. The device comprises an anode, a cathode, a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer and an electron-transporting layer, and a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer, an interfacial layer, and a p-type doped organic layer, and wherein the interfacial layer prevents diffusion or reaction between the n-type doped organic layer and the p-type doped organic layer.
摘要:
An organic light-emitting device includes a substrate, an anode, a cathode, disposed between the anode and the cathode is an electroluminescent medium including, in sequence: a hole-transporting layer; an interface layer; a light-emitting layer; and an electron-transporting layer. The interface layer comprises a compound having an ionization potential greater than that of the organic compound of the hole-transporting layer, and an energy bandgap equal to or greater than that of the organic compound of the light-emitting layer. Wherein the thickness of the interface layer is in the range of 0.1 nm˜5 nm. The interface layer provides more balanced carrier recombination in the light-emitting layer, and achieves higher luminance efficiency.
摘要:
A tandem white OLED device includes an anode, a cathode, and a plurality of organic electroluminescence units disposed between the anode and the cathode, wherein each organic electroluminescence unit includes at least one light-emitting layer, and wherein each organic electroluminescence unit emits white light. The device also includes an intermediate connector disposed between each adjacent organic electroluminescence unit, wherein the intermediate connector includes at least two different layers, and wherein the intermediate connector has no direct connection to an external power source.