A light-emitting device and electric appliances
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专利名称：A light-emitting device and electric appliances
发明人：瀬尾 哲史,山崎 舜平
申请号：JP2001399072
申请日：20011228
公开号：JP4076769B2
公开日：
20080416
专利内容由知识产权出版社提供
摘要：PROBLEM TO BE SOLVED: To provide a light emitting device consuming less power and having a long service life, and an electric appliance. SOLUTION: Either a hole transporting mixed layer 803 consisting of a hole injection material 811 and a hole transporting material 812, or a bipolar mixed layer 804 consisting of the hole transporting material 812 and an electron transporting material 813, or an electron transporting mixed layer 805 consisting of the electron transporting material 813 and an electron injection material 814, is employed and a density gradient as shown by the graph 810 is formed to enhance carrier injectability between the layers of an organic light emitting element. Using this technique, the organic light emitting element consuming less power and having a long service life is provided, and the light emitting device and the electric appliance are fabricated using the organic light emitting element.
申请人：株式会社半導体エネルギー研究所
地址：神奈川県厚木市長谷３９８番地
国籍：JP
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