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公开(公告)号：EP0563009A1
公开(公告)日：1993-09-29
申请号：EP93810183.9
申请日：1993-03-15
申请人： Japat Ltd
CPC分类号： H05B33/26 , H01L51/5221 , H05B33/10
摘要： An organic electroluminescent element (1) in which an anode (13), a hole transport layer (15), a light-emitting layer (17) and a cathode (19) are laminated in this order, wherein the cathode comprises a metal block portion or portions (19A) comprising a metal having a high work function and a metal block portion or portions (19B) comprising a metal having a low work function, both of the metal block portions of the metal having a high work function and of the metal having a low work function being in contact with the light-emitting layer (17), and a process for preparing the same by using the technique of vapor-deposition.
The present invention can provide an El element which can give a higher luminance and longer lifetime than those proposed conventionally with a low applied voltage in the constitution of an anode/a hole transport layer/a light-emitting layer/a cathode, and, with no restriction of material used.摘要翻译： 依次层叠阳极（13），空穴传输层（15），发光层（17）和阴极（19）的有机电致发光元件（1），其中阴极包括金属块 包括具有高功函数的金属和金属块部分的部分或部分（19A）或包含具有低功函数的金属的部分（19B），具有高功函数的金属的两个金属块部分和 具有低功函数的金属与发光层（17）接触，以及通过使用气相沉积技术制备该金属的方法。 本发明可以提供一种EL元件，其能够在阳极/空穴传输层/发光层/阴极的结构中提供比传统施加的低施加电压更高的亮度和更长的寿命，并且与 没有限制使用的材料。
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112.发明公开
公开(公告)号：EP0468439A3
公开(公告)日：1992-11-04
申请号：EP91112316.4
申请日：1991-07-23
CPC分类号： H01L51/5092 , C09K11/06 , H01L51/5221 , H05B33/14 , H05B33/26 , Y10T428/31678
摘要： An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode containing a plurality of metals other than alkali metals. The cathode is comprised of a capping layer containing at least one alkaline earth or rare earth metal and, interposed between the capping layer and the organic electroluminescent medium, an electron injecting layer containing at least one metal having a work function of less than 4.0, but exhibiting a higher work function than the alkaline earth or rare earth metals in the capping layer.
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113.发明公开
公开(公告)号：EP0468438A2
公开(公告)日：1992-01-29
申请号：EP91112315.6
申请日：1991-07-23
发明人： Scozzafava, Michael, c/o EASTMAN KODAK COMPANY , Tang, Ching Wan, c/o EASTMAN KODAK COMPANY , Littman, Jon Eric, c/o EASTMAN KODAK COMPANY
CPC分类号： H05B33/26 , H01B1/02 , H01L51/5221 , H05B33/14 , Y10S428/917 , Y10T428/25 , Y10T428/258
摘要： An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode. The cathode is comprised of an electron injecting layer contacting the organic electroluminescent medium containing a plurality of metals at least one of which has a work function of less than that of indium. The cathode is comprised of a layer of fused metal particles containing at least 80 percent indium and having a mean diameter of less than 1 µm and a coefficient of variation of less than 20 percent.
摘要翻译： 公开了一种有机电致发光器件（100），其防止形成黑点。 装置（100）依次包括支撑件（102），阳极（104），有机电致发光介质（106）和阴极（118）。 阴极（118）包括与包含多个金属的有机电致发光介质（106）接触的电子注入层（120），其中至少一种金属具有小于铟的功函数。 阴极（118）由含有至少80％的铟并且平均直径小于1μm并且变异系数小于20％的熔融金属颗粒层组成。
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114.发明公开
公开(公告)号：EP0395327A2
公开(公告)日：1990-10-31
申请号：EP90304310.7
申请日：1990-04-20
摘要： A thin film electroluminescent edge emitter structure operable as an electronically controlled, high resolution light source includes a plurality of TFEL assemblies disposed in array-like fashion on a layer of substrate material. Each TFEL assembly includes a first layer of electrically conductive material, a second layer of electrically conductive material spaced from the first electrically conductive layer and an electrically energizable, light-emitting composite layer interposed therebetween. At least the second electrically conductive layer of each TFEL assembly is segmented to provide a plurality of second electrically conductive elements, and the plurality of second electrically conductive elements in combination with the remaining layers of the assembly form a pixel group including a plurality of individual light-emitting pixels. The portion of the light-emitting, composite layer associated with an individual pixel of a particular pixel group is operable to emit light energy at the light-emitting face of the individual pixel when a first electrical signal is applied to the first electrically conductive layer which is common to the pixel group simultaneously with the application of a second electrical signal to the individual pixel second electrically conductive element.
摘要翻译： 可操作为电子控制的高分辨率光源的薄膜电致发光边缘发射器结构包括以阵列状方式设置在衬底材料层上的多个TFEL组件。 每个TFEL组件包括第一层导电材料，与第一导电层间隔开的第二层导电材料和介于它们之间的可电激发光发光复合层。 每个TFEL组件的至少第二导电层被分段以提供多个第二导电元件，并且多个第二导电元件与组件的剩余层组合形成包括多个单独的光的像素组 - 匹配像素。 与特定像素组的单个像素相关联的发光复合层的部分可操作以在第一电信号被施加到第一导电层时在单个像素的发光面发射光能， 对于像素组共同的是将第二电信号应用于各个像素第二导电元件。
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115.发明公开
公开(公告)号：EP0377320A2
公开(公告)日：1990-07-11
申请号：EP89313589.7
申请日：1989-12-27
摘要： An electric field effect light emitting device comprises a light emitting layer consisting of a diamond-like carbon film containing oxygen.
摘要翻译： 电场效应发光器件包括由含氧的类金刚石碳膜构成的发光层。
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公开(公告)号：EP0349265A3
公开(公告)日：1990-03-14
申请号：EP89306509.4
申请日：1989-06-27
CPC分类号： H05B33/14 , H01L27/3281 , H01L51/5203 , H01L2251/558 , H05B33/26
摘要： A matrix addressed organic electroluminescent device (100) providing extremely small pixel sizes comprises anode strips (102, 104, 106), an organic electroluminescent medium (110) coated on the anode strips, and cathode strips (112, 114, 116) coated on the organic electroluminescent medium. The cathode strips are formed by photolithographic techniques which do not damage the organic electroluminescent medium. In one preferred embodiment the electroluminescent medium includes a fluorescent material which emits light in response to hole-electron recombination.
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公开(公告)号：EP0278758A3
公开(公告)日：1989-08-23
申请号：EP88301130.6
申请日：1988-02-11
发明人： VanSlyke, Steven Arland c/o Eastman Kodak Company , Tang, Ching Wan c/o Eastman Kodak Company , Roberts, Luther Craig c/o Eastman Kodak Company
CPC分类号： H01L51/5012 , C09K11/06 , H05B33/14 , Y10S428/917 , Y10T428/31504 , Y10T428/31678 , Y10T428/31692 , Y10T428/31909
摘要： An electroluminescent device is disclosed comprising in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic hole injecting and transporting zone is comprised of a layer in contact with the anode containing a hole injecting porphyrinic compound and a layer containing a hole transporting aromatic tertiary amine interposed between the hole injecting layer and the electron injecting and transporting zone.
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公开(公告)号：EP0278757A3
公开(公告)日：1989-08-23
申请号：EP88301129.8
申请日：1988-02-11
CPC分类号： H05B33/28 , C09K11/06 , H01L51/0078 , H01L51/5221 , H05B33/14 , H05B33/26 , Y10S428/917 , Y10T428/31504 , Y10T428/31678 , Y10T428/31692 , Y10T428/31909
摘要： An electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole transporting zone, an organic electron transporting zone, and a cathode. The cathode is comprised of a layer of a plurality of metals other than alkali metals, at least one of said metals having a work function of less than 4 eV.
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公开(公告)号：EP4131221A1
公开(公告)日：2023-02-08
申请号：EP21781407.8
申请日：2021-03-31
摘要： A display device includes an anode electrode, an organic light emitting layer, and a first cathode electrode. Provided are a plurality of light emitting elements in which the anode electrode, the organic light emitting layer, and the first cathode are separated for each sub-pixel, a protective layer covering the plurality of light emitting elements, and a second cathode electrode provided on the protective layer. The second cathode electrode is connected to each separated first cathode electrode.
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公开(公告)号：EP4050674A1
公开(公告)日：2022-08-31
申请号：EP20901678.1
申请日：2020-12-17
发明人： GUO, Lixue , ZHU, Yingguang , ZHANG, Guohui , HU, Yonglan , XIE, Jing
摘要： An organic electroluminescent device includes, from bottom to top, a substrate (1), a first electrode (2) and a light-emitting component (4) in sequence, where the light-emitting component (4) is disposed on the first electrode (2), and a secondary electrode structure (5) is disposed on an upper side surface of the light-emitting component (4) and includes a sub-electrode (53), a dielectric material layer (52) and an outer layer electrode (51), where the dielectric material layer (52) is disposed between the sub-electrode (53) and the outer layer electrode (51), the sub-electrode (53) is in contact with the light-emitting component (4), the dielectric material layer (52) and the sub-electrode (53) completely cover a light-emitting region of the light-emitting component (4), the outer layer electrode (51) completely covers the dielectric material layer (52), and in a non-light-emitting region on the periphery of the light-emitting component (4), the outer layer electrode (51) is electrically connected to the sub-electrode (53). The high-reliability device can comprehensively prevent a screen from failing due to a short circuit and still has an effect of preventing the short circuit even under a "grid-free" condition, thereby reducing the dependency on an insulating layer material, simplifying a manufacturing process, and saving a cost.
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