公开(公告)号：US06281627B1

公开(公告)日：2001-08-28

申请号：US09234704

申请日：1999-01-21

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi ,  Hiroshi Yamamoto

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi ,  Hiroshi Yamamoto

IPC分类号： H01J162

CPC分类号： H01L51/5092 ,  Y10S428/917

摘要： To realize an organic EL device having an excellent electron injection efficiency, improved luminous efficiency, low operating voltage, and low cost, the invention provides an organic EL device comprising a hole injecting electrode, an electron injecting electrode, and at least one organic layer between the electrodes, at least one of the organic layer having a light emitting function. The device further has a high resistance inorganic electron injecting layer between the electron injecting electrode and the organic layer. The high resistance inorganic electron injecting layer contains as a first component an oxide of at least one element selected from alkali metal elements, alkaline earth metal elements and lanthanide elements, having a band gap of up to 4 eV and as a second component at least one element selected from Ru, V, Zn, Sm, and In and is capable of blocking holes and has conduction paths for carrying electrons.

摘要翻译： 为了实现具有优异的电子注入效率，改善的发光效率，低工作电压和低成本的有机EL器件，本发明提供一种有机EL器件，其包括空穴注入电极，电子注入电极和至少一个有机层， 所述电极，所述有机层中的至少一个具有发光功能。 该装置还在电子注入电极和有机层之间具有高电阻的无机电子注入层。 高电阻无机电子注入层含有至少一种选自碱金属元素，碱土金属元素和镧系元素的元素的氧化物，其具有高达4eV的带隙，作为第二成分的至少一种 元素选自Ru，V，Zn，Sm和In，并且能够阻挡空穴并具有用于承载电子的传导路径。

公开(公告)号：US06340537B1

公开(公告)日：2002-01-22

申请号：US09239963

申请日：1999-01-29

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： B62B3300

CPC分类号： H01L51/5092 ,  H01L51/5088

摘要： The organic EL device of the present invention fulfills the object of realizing an organic EL device which exhibits an excellent hole injecting efficiency and an improved light emitting efficiency and which can be operated at a low drive voltage and manufactured at a reduced cost. In order to attain such object, the organic EL device comprises a hole injecting electrode, a negative electrode, and one or more organic layers between the electrodes wherein at least one of said organic layers has a light emitting function. A high resistivity inorganic hole injecting layer is provided between said hole injecting electrode and the organic layer. This layer has conduction paths for electron blockage and hole transportation. An inorganic insulative electron injecting and transporting layer is provided between the light emitting layer and the negative electrode. This layer contains at least one oxide selected from strontium oxide, magnesium oxide, calcium oxide, lithium oxide, rubidium oxide, potassium oxide, sodium oxide and cesium oxide as its main component.

摘要翻译： 本发明的有机EL器件的目的在于实现具有优异的空穴注入效率和提高的发光效率的有机EL器件，并且可以以低的驱动电压进行操作并以低成本制造。 为了达到这个目的，有机EL器件包括空穴注入电极，负电极和电极之间的一个或多个有机层，其中至少一个所述有机层具有发光功能。 在所述空穴注入电极和有机层之间设置有高电阻率的无机空穴注入层。 该层具有电子阻塞和空穴传输的传导路径。 在发光层和负极之间设置无机绝缘性电子注入输送层。 该层含有选自氧化锶，氧化镁，氧化钙，氧化锂，氧化铷，氧化钾，氧化钠，氧化铯为主要成分的至少一种氧化物。

公开(公告)号：US06303239B1

公开(公告)日：2001-10-16

申请号：US09241284

申请日：1999-02-01

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01L3300

CPC分类号： H01L51/5092 ,  H01L51/5221

摘要： An object of the invention is to achieve an organic EL device which has an extended life, weather resistance, high stability, and high efficiency, and is inexpensive as well. This object is accomplished by the provision of an organic EL device comprising a substrate, a pair of a hole injecting electrode and a cathode formed on the substrate, and an organic layer located between these electrodes and taking part in at least a light emission function, wherein between the organic layer and the cathode there is provided an inorganic insulating electron injecting and transporting layer comprising a first component comprising at least one oxide selected from the group consisting of lithium oxide, rubidium oxide, potassium oxide, sodium oxide and cesium oxide, a second component comprising at least one oxide selected from the group consisting of strontium oxide, magnesium oxide and calcium oxide, and a third component comprising silicon oxide and/or germanium oxide.

摘要翻译： 本发明的目的在于实现具有延长使用寿命，耐候性，高稳定性和高效率的有机EL器件，并且也便宜。 该目的通过提供一种包括基板，一对空穴注入电极和形成在基板上的阴极的有机EL器件和位于这些电极之间的有机层并且至少参与发光功能来实现， 其中在有机层和阴极之间提供无机绝缘电子注入和传输层，其包含第一组分，该第一组分包含选自氧化锂，氧化铷，氧化钾，氧化钠和氧化铯中的至少一种氧化物， 第二组分包含选自氧化锶，氧化镁和氧化钙中的至少一种氧化物，以及包含氧化硅和/或氧化锗的第三组分。

公开(公告)号：US06208076B1

公开(公告)日：2001-03-27

申请号：US09229569

申请日：1999-01-13

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01L3300

CPC分类号： H01L51/5088

摘要： The invention provides an organic EL device comprising a hole injecting electrode, a negative electrode, at least one organic layer between the electrodes, the organic layer including a light emitting layer having a light emitting function, and a hole injecting and transporting layer containing a hole transporting organic material and an inorganic insulative hole injecting and transporting layer formed of an inorganic material between the hole injecting electrode and the light emitting layer. The inorganic insulative hole injecting and transporting layer contains silicon oxide and/or germanium oxide as a main component, the main component having an average composition represented by the formula: (Si1−xGex)Oy wherein 0≦x≦1 and 1

摘要翻译： 本发明提供了一种有机EL器件，其包括空穴注入电极，负极，电极之间的至少一个有机层，有机层包括具有发光功能的发光层，以及含有孔的空穴注入传输层 在空穴注入电极和发光层之间传输有机材料和由无机材料形成的无机绝缘空穴注入和传输层。 无机绝缘性空穴注入输送层含有氧化硅和/或氧化锗作为主要成分，主成分的平均成分由下式（Si1-xGex）Oy表示，其中0 <= x <= 1， y <= 2。 这种结构使得能够使用有机材料具有空穴注入和输送层，寿命长，耐候性，高稳定性，高效率和低成本的现有技术的器件具有更好的性能。

公开(公告)号：US06373186B1

公开(公告)日：2002-04-16

申请号：US09234705

申请日：1999-01-21

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01J162

CPC分类号： H01L51/5088

摘要： To realize an organic EL device having an excellent hole injection efficiency, improved luminous efficiency, low operating voltage, and low cost, the invention provides an organic EL device comprising a hole injecting electrode, an electron injecting electrode, and at least one organic layer between the electrodes, at least one of the organic layer having a light emitting function. The device further has a high resistance inorganic hole injecting layer between the hole injecting electrode and the organic layer. The high resistance inorganic hole injecting layer is capable of blocking electrons and has conduction paths for carrying holes.

摘要翻译： 为了实现具有优异的空穴注入效率，改善的发光效率，低工作电压和低成本的有机EL器件，本发明提供了一种有机EL器件，其包括空穴注入电极，电子注入电极和至少一个有机层， 所述电极，所述有机层中的至少一个具有发光功能。 该装置还在空穴注入电极和有机层之间具有高电阻的无机空穴注入层。 高电阻无机空穴注入层能够阻挡电子并具有用于承载孔的导电路径。

公开(公告)号：US06316874B1

公开(公告)日：2001-11-13

申请号：US09241056

申请日：1999-02-01

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01J162

CPC分类号： H01L51/5092 ,  H01L2251/5346

摘要： The object of the invention is to provide an organic EL device which possesses the merits of both an organic material and an inorganic material, has an extended life, an improved efficiency, a low driving voltage and high luminance, and is fabricated at low cost. This object is achieved by the provision of an organic EL device comprising a substrate, a hole injecting electrode and a cathode formed on the substrate, and at least one organic layer located between these electrodes. An inorganic insulating electron injecting layer is located between the cathode and the organic layer. The inorganic insulating electron injecting layer comprises as an oxide having a low work function at least one oxide having a work function of lower than 2.5 eV, and as an oxide having a high work function at one oxide having a work function of 2.5 to 4 eV.

摘要翻译： 本发明的目的是提供一种具有有机材料和无机材料的优点的有机EL器件，具有延长的寿命，提高的效率，低驱动电压和高亮度，并且以低成本制造。 该目的通过提供一种包括在基板上形成的基板，空穴注入电极和阴极以及位于这些电极之间的至少一个有机层的有机EL器件来实现。 无机绝缘电子注入层位于阴极和有机层之间。 无机绝缘电子注入层包含功函数低于2.5eV的至少一种氧化物作为功函数低的氧化物，作为功函数为2.5〜4eV的氧化物具有高功函的氧化物 。

公开(公告)号：US06200695B1

公开(公告)日：2001-03-13

申请号：US09207660

申请日：1998-12-09

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H05B3313

CPC分类号： H01L51/5088

摘要： An organic EL device has a hole injecting electrode (2), an electron injecting electrode (3), an organic layer (5) between the electrodes, and an inorganic insulating hole injecting layer (4) between the hole injecting electrode (2) and the organic layer (5). The inorganic insulating hole injecting layer (4) consists essentially of silicon oxide or germanium oxide or a mixture of silicon oxide and germanium oxide in an average composition represented by (Si1-xGex)Oy wherein x and y are 0≦x≦1 and 1.7≦y≦1.99, as analyzed by Rutherford back-scattering. The device has the advantages of both organic and inorganic materials as well as a long lifetime, improved efficiency, low operating voltage, and low cost.

摘要翻译： 有机EL元件具有空穴注入电极（2），电子注入电极（3），电极之间的有机层（5）和空穴注入电极（2）和空穴注入电极 有机层（5）。 无机绝缘空穴注入层（4）基本上由氧化硅或氧化锗或由（Si1-xGex）Oy表示的平均组成的氧化硅和氧化锗的混合物组成，其中x和y为0 <= x <= 1 和1.7 <= y <= 1.99，如卢瑟福背散射分析。 该器件具有有机和无机材料的优点，寿命长，效率高，工作电压低，成本低。

公开(公告)号：US06222314B1

公开(公告)日：2001-04-24

申请号：US09234507

申请日：1999-01-21

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01J162

CPC分类号： H01L51/5088

摘要： An organic EL device has a hole injecting electrode, an electron injecting electrode, an organic layer between the electrodes, and an inorganic insulating hole injecting layer between the hole injecting electrode and the organic layer. The inorganic insulating hole injecting layer contains silicon oxide or germanium oxide or a mixture thereof as a main component, and the main component is represented by (Si1-xGex)Oy wherein 0≦x≦1 and 1.7≦y≦2.2. The hole injecting layer further contains Cu, Fe, Ni, Ru, Sn, Au or a mixture thereof, The device has advantages including a long lifetime, improved efficiency, low operating voltage, and low cost, and is suited for use as high-performance flat-panel color displays.

摘要翻译： 有机EL器件具有空穴注入电极，电子注入电极，电极之间的有机层和空穴注入电极与有机层之间的无机绝缘性空穴注入层。 无机绝缘空穴注入层含有氧化硅或氧化锗或其混合物作为主要成分，主成分由（Si1-xGex）Oy表示，其中0 <= x <= 1且1.7 <= y <2.2 。 空穴注入层还含有Cu，Fe，Ni，Ru，Sn，Au或其混合物。该器件具有寿命长，效率提高，工作电压低，成本低的优点， 性能平板彩色显示器。

公开(公告)号：US06198219B1

公开(公告)日：2001-03-06

申请号：US09229562

申请日：1999-01-13

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H01L3300

CPC分类号： H01L51/5092

摘要： The invention provides an organic EL device comprising a substrate, a hole injecting electrode and a negative electrode formed on the substrate, an organic layer containing an organic material between the electrodes, the organic layer including a light emitting layer having at least a light emitting function, and an electron injecting and transporting layer containing an electron transporting organic material and an inorganic insulative electron injecting and transporting layer formed of an inorganic material between the negative electrode and the light emitting layer. The inorganic insulative electron injecting and transporting layer contains at least one oxide selected from the group consisting of lithium oxide, rubidium oxide, potassium oxide, sodium oxide, cesium oxide, strontium oxide, magnesium oxide, and calcium oxide as a main component, and silicon oxide, germanium oxide or a mixture of silicon oxide and germanium oxide as a stabilizer. This construction ensures better performance than prior art devices having electron injecting and transporting layers using organic materials, a high efficiency, long life, weather resistance, and high stability.

摘要翻译： 本发明提供了一种有机EL器件，其包括在基板上形成的基板，空穴注入电极和负极，在电极之间含有有机材料的有机层，该有机层包括至少具有发光功能的发光层 以及含有电子传输有机材料的电子注入传输层和由负极和发光层之间的无机材料形成的无机绝缘性电子注入传输层。 无机绝缘性电子注入输送层含有选自氧化锂，氧化铷，氧化钾，氧化钠，氧化铯，氧化锶，氧化镁，氧化钙为主要成分的至少一种氧化物，硅 氧化物，氧化锗或氧化硅和氧化锗的混合物作为稳定剂。 该结构确保了比使用有机材料的电子注入和输送层，高效率，长寿命，耐候性和高稳定性的现有技术装置更好的性能。

公开(公告)号：US06296954B1

公开(公告)日：2001-10-02

申请号：US09235379

申请日：1999-01-22

申请人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

发明人： Michio Arai ,  Isamu Kobori ,  Etsuo Mitsuhashi

IPC分类号： H05B3300

CPC分类号： H01L51/5092 ,  H01L51/5088 ,  Y10S428/917

摘要： The invention provides an organic EL device comprising a substrate, a hole injecting electrode and a negative electrode formed on the substrate, a light emitting layer containing an organic material between the electrodes, an inorganic electron injecting and transporting layer between the light emitting layer and the negative electrode, and an inorganic insulative hole injecting and transporting layer between the light emitting layer and the hole injecting electrode. The inorganic electron injecting and transporting layer contains at least one oxide selected from among strontium oxide, magnesium oxide, calcium oxide, lithium oxide, rubidium oxide, potassium oxide, sodium oxide, and cesium oxide as a main component and silicon oxide and/or germanium oxide as a stabilizer. The inorganic insulative hole injecting and transporting layer (4) contains silicon oxide and/or germanium oxide as a main component, the main component having an average composition represented by the formula: (Si1-xGex)Oy wherein 0≦x≦1 and 1.7≦y≦1.99, as analyzed by Rutherford back-scattering. Organic EL devices having performance comparable to or more than that of prior art devices having a hole injecting and transporting layer or an electron injecting and transporting layer using organic materials, a long life, weather resistance, high stability, high efficiency, and low cost are realized. The devices are easy to manufacture and have stable physical properties at the film interface even when the light emitting layer consists of two or more layers.

摘要翻译： 本发明提供了一种有机EL器件，其包括在基板上形成的基板，空穴注入电极和负极，在电极之间含有有机材料的发光层，发光层和发光层之间的无机电子注入和输送层 负极和发光层与空穴注入电极之间的无机绝缘性空穴注入输送层。 无机电子注入输送层含有选自氧化锶，氧化镁，氧化钙，氧化锂，氧化铷，氧化钾，氧化钠，氧化铯为主要成分的至少一种氧化物和氧化硅和/或锗 氧化物作为稳定剂。 无机绝缘性空穴注入输送层（4）含有氧化硅和/或氧化锗作为主要成分，主成分的平均成分由下式表示：其中0 <= x <= 1和1.7 <= y < = 1.99，由卢瑟福背散射分析。 具有与具有空穴注入和输送层的现有技术装置或使用有机材料的电子注入和传输层相当或更高的性能，长寿命，耐候性，高稳定性，高效率和低成本的性能的有机EL器件是 实现了 这些器件易于制造，并且在膜界面处具有稳定的物理性质，即使当发光层由两层或更多层组成时。