发明名称 Electroluminescence device
摘要 An organic EL element has excellent features as compared with other electroluminescent elements, but on the other hand, has a problem that the life of the element is not sufficiently long. In addition, since the organic EL element is expected to be applied to a mobile display and the like, it is also important to improve power efficiency. Hence, an object of the invention is to provide an element structure to realize an improvement in power efficiency and an improvement in the life of the element at the same. In the construction of an organic EL element of the invention, the first electroluminescent film 303 is sandwiched by the first anode 302 and a cathode 304 , and the second electroluminescent film 305 and the second anode 306 are laminated over the cathode 304 . At this time, the first anode 302 is put into contact with the second anode 306 to form a parallel circuit to decrease an electric current passing through the respective electroluminescent films.
申请公布号 US7199521(B2) 申请公布日期 2007.04.03
申请号 US20040763101 申请日期 2004.01.22
申请人 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 IBE TAKAHIRO
分类号 H05B33/12;H01L27/32;H05B33/26 主分类号 H05B33/12
代理机构 代理人
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