发明名称 |
Light-emitting element and electronic device |
摘要 |
An object is to provide a light-emitting element with high emission efficiency which includes a novel carbazole derivative that has a wide energy gap and can be used for a transport layer or a host material in a light-emitting element. A carbazole derivative in which the 4-position of dibenzothiophene or dibenzofuran is bonded to the 2- or 3-position of carbazole has been able to be provided by use of the carbazole derivative. Further, a light-emitting element having high emission efficiency has been able to be provided by use of the carbazole derivative. |
申请公布号 |
US8673459(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US201113228644 |
申请日期 |
2011.09.09 |
申请人 |
SEO SATOSHI;OSAKA HARUE;KAWAKAMI SACHIKO;OHSAWA NOBUHARU;SUZUKI TSUNENORI;NOWATARI HIROMI;SUZUKI HIROKI;TAKEDA KYOKO;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
SEO SATOSHI;OSAKA HARUE;KAWAKAMI SACHIKO;OHSAWA NOBUHARU;SUZUKI TSUNENORI;NOWATARI HIROMI;SUZUKI HIROKI;TAKEDA KYOKO |
分类号 |
H01L51/54 |
主分类号 |
H01L51/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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