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    • 6. 发明授权
    • Electroluminescent device
    • 电致发光器件
    • US5200277A
    • 1993-04-06
    • US454961
    • 1989-12-22
    • Takahiro NakayamaKenichi OnisawaKatsumi TamuraKazuo TaguchiAkira SatoKenichi HashimotoYoshio AbeMasanobu Hanazono
    • Takahiro NakayamaKenichi OnisawaKatsumi TamuraKazuo TaguchiAkira SatoKenichi HashimotoYoshio AbeMasanobu Hanazono
    • C23C14/08H05B33/10H05B33/22
    • H05B33/22C23C14/08H05B33/10Y10S428/917Y10T428/24975Y10T428/265
    • An electroluminescent device including dielectric films each of which consists of first regions made of a material with a strong self-healing type dielectric breakdown characteristic, second regions made of a material with a strong propagating type dielectric breakdown characteristic, and mixed regions consisting of a mixture of these two materials, the first and second regions being arranged alternately in the film thickness direction with the mixed regions therebetween, the mixing ratio of these two materials in the mixed regions changing in such a manner that the ratio of one material gradually decreases from a region of this material toward the adjacent region of the other material, that is, the ratio of the other material increases. Thus, the changes in the mixing ratio of these two materials of the dielectric films in the film thickness direction are continuous and periodic. These dielectric films, with a high breakdown field strength, make it possible to obtain an electroluminescent device having a large drive voltage margin and providing a luminescence of high brightness.
    • 一种电致发光器件,包括电介质膜,每个电介质膜由具有强自愈型电介质击穿特性的材料制成的第一区域,由具有强传播型电介质击穿特性的材料制成的第二区域,以及由混合物组成的混合区域 在这两种材料中,第一和第二区域在膜厚度方向上交替地与它们之间的混合区域布置,这两种材料在混合区域中的混合比以这样的方式变化,使得一种材料的比例从 该材料的区域朝向另一材料的相邻区域,即另一种材料的比例增加。 因此,电介质膜在膜厚方向上的这两种材料的混合比的变化是连续的和周期性的。 具有高击穿场强度的这些电介质膜使得可以获得具有大的驱动电压余量并提供高亮度的发光的电致发光器件。