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    • 84. 发明授权
    • Light emitting device and electric device using the same
    • 发光装置及使用其的电气装置
    • US06809481B2
    • 2004-10-26
    • US10374205
    • 2003-02-26
    • Satoshi SeoHarue NakashimaShunpei Yamazaki
    • Satoshi SeoHarue NakashimaShunpei Yamazaki
    • G09G320
    • G09G3/3216G09G3/3225G09G2310/0256G09G2320/043H01L2251/564H05B33/0896
    • The purpose of the present invention is to provide a light emitting device using an organic light emitting element and allowed to be driven stably with long lifetime. In a light emitting device having an organic light emitting device provided with an organic compound layer for obtaining light emission by applying a voltage between a first electrode and a second electrode, and arrangements for applying a forward bias for emitting light from the organic light emitting device and a reverse bias of reverse polarity to the forward bias, the maximum voltage Vf of the forward bias is higher than the maximum voltage Vr of the reverse bias in an alternating current cycle formed of the forward bias and the reverse bias. At this time, the Vr is preferably a quarter of the Vf or higher than that. Additionally, the time Tr to apply the reverse bias in the alternating current cycle is preferably equal to or longer than the time Tf to apply the forward bias.
    • 本发明的目的是提供一种使用有机发光元件的发光器件,并且能够长寿命地被稳定地驱动。 在具有通过在第一电极和第二电极之间施加电压而获得发光的有机化合物层的有机发光器件的发光器件中,以及用于施加来自有机发光器件的光的正向偏压的布置 以及与正向偏压相反极性的反向偏压,正向偏压的最大电压Vf高于由正向偏压和反向偏压形成的交流电循环中的反向偏压的最大电压Vr。 此时,Vr优选为Vf的四分之一或更高。 此外,在交流电周期中施加反向偏置的时间Tr优选等于或大于施加正向偏压的时间Tf。
    • 88. 发明授权
    • Organic light emitting element and display device using the element
    • 有机发光元件和使用该元件的显示装置
    • US08674348B2
    • 2014-03-18
    • US13444889
    • 2012-04-12
    • Satoshi SeoShunpei Yamazaki
    • Satoshi SeoShunpei Yamazaki
    • H01L35/24
    • H01L51/5016H01L27/3211H01L27/3244H01L27/3281H01L51/5008H01L51/5048H01L51/5096H01L2251/5376H01L2251/5384
    • A hole transporting region made of a hole transporting material, an electron transporting region made of an electron transporting material, and a mixed region (light emitting region) in which both the hole transporting material and the electron transporting material are mixed and which is doped with a triplet light emitting material for red color are provided in an organic compound film, whereby interfaces between respective layers which exist in a conventional lamination structure are eliminated, and respective functions of hole transportation, electron transportation, and light emission are exhibited. In accordance with the above-mentioned method, the organic light emitting element for red color can be obtained in which power consumption is low and a life thereof is long. Thus, the display device and the electric device are manufactured by using the organic light emitting element.
    • 由空穴传输材料制成的空穴传输区域,由电子传输材料制成的电子传输区域和混合有空穴传输材料和电子传输材料的混合区域(发光区域),并掺杂有 在有机化合物膜中设置用于红色的三重态发光材料,由此消除了存在于常规层压结构中的各层之间的界面,并且表现出空穴传输,电子传输和发光的各种功能。 根据上述方法,可以获得功耗低且寿命长的红色有机发光元件。 因此,通过使用有机发光元件来制造显示装置和电气装置。