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    • 6. 发明申请
    • Light emitting element, light emitting device, and electronic apparatus
    • 发光元件,发光元件及电子设备
    • US20070013301A1
    • 2007-01-18
    • US11473332
    • 2006-06-23
    • Shunpei YamazakiJunichiro SakataRyoji Nomura
    • Shunpei YamazakiJunichiro SakataRyoji Nomura
    • H01J1/62H01J63/04
    • H01L51/52H01L51/5048Y10S428/917
    • It is an object of the present invention to provide a light emitting element with a low driving voltage. In a light emitting element, a first electrode; and a first composite layer, a second composite layer, a light emitting layer, an electron transporting layer, an electron injecting layer, and a second electrode, which are stacked over the first electrode, are included. The first composite layer and the second composite layer each include metal oxide and an organic compound. A concentration of metal oxide in the first composite layer is higher than a concentration of metal oxide in the second composite layer, whereby a light emitting element with a low driving voltage can be obtained. Further, the composite layer is not limited to a two-layer structure. A multi-layer structure can be employed. However, a concentration of metal oxide in the composite layer is gradually higher from the light emitting layer to first electrode side.
    • 本发明的目的是提供一种具有低驱动电压的发光元件。 在发光元件中,第一电极; 并且包括层叠在第一电极上的第一复合层,第二复合层,发光层,电子传输层,电子注入层和第二电极。 第一复合层和第二复合层各自包括金属氧化物和有机化合物。 第一复合层中的金属氧化物的浓度高于第二复合层中的金属氧化物的浓度,由此可以获得具有低驱动电压的发光元件。 此外,复合层不限于两层结构。 可以采用多层结构。 然而,复合层中的金属氧化物的浓度从发光层逐渐变高到第一电极侧。
    • 7. 发明申请
    • Light emitting device and method for manufacturing thereof
    • 发光元件及其制造方法
    • US20060244373A1
    • 2006-11-02
    • US11408216
    • 2006-04-20
    • Ryoji NomuraKaoru KatoSatoshi YoshimotoShunpei Yamazaki
    • Ryoji NomuraKaoru KatoSatoshi YoshimotoShunpei Yamazaki
    • H01L51/52H01L51/56H05B33/12
    • H01L51/5012H01L2251/558Y10T428/24942Y10T428/2495Y10T428/24967
    • An object of the present invention is to provide a light emitting device including an organic light emitting layer and an organic compound and having high light emitting efficient along with less deterioration in characteristics. In the light emitting device, an anode, a cathode facing the anode, light emitting layers each comprising an organic compound and being provided between the anode and the cathode, and carrier transporting layers each comprising an organic compound, are provided over a substrate. Each of the light emitting layers and each of the carrier transporting layers are alternately stacked. A thickness of each of the carrier transporting layers is thinner than that of each of the light emitting layers. When each of the carrier transporting layers is a hole transporting layer, each of the light emitting layers has an electron transporting property. When each of the carrier transporting layers is an electron transporting layer, each of the light emitting layers has a hole transporting property.
    • 本发明的目的是提供一种包括有机发光层和有机化合物并且具有高发光效率以及更少的特性劣化的发光器件。 在发光装置中,在基板上设置阳极,面向阳极的阴极,各自包含有机化合物并且设置在阳极和阴极之间的发光层以及各自包含有机化合物的载流子传输层。 每个发光层和每个载流子传输层交替堆叠。 每个载流子传输层的厚度比每个发光层的厚度薄。 当每个载流子传输层是空穴传输层时,每个发光层都具有电子传输性质。 当每个载流子传输层是电子传输层时,每个发光层具有空穴传输性质。