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发明授权
US07927720B2 Quinoxaline derivative and light-emitting element, light-emitting device, and electronic device using quinoxaline derivative 有权
喹喔啉衍生物和发光元件，发光装置和使用喹喔啉衍生物的电子器件

Quinoxaline derivative and light-emitting element, light-emitting device, and electronic device using quinoxaline derivative
摘要：
An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage. Another object is to provide a light-emitting element with low power consumption. Another object is to provide a light-emitting device and an electronic device with low power consumption by using such a light-emitting element. A quinoxaline derivative which has a structure in which at least one of carbon at a 2-position and carbon at a 3-position of quinoxaline, and carbon of 1,3,4-oxadiazole ring are bound via an arylene group is provided.
摘要（中）：

目的是提供一种新颖的喹喔啉衍生物。 另一个目的是提供具有低驱动电压的发光元件。 另一个目的是提供一种具有低功耗的发光元件。 另一个目的是通过使用这种发光元件来提供具有低功耗的发光装置和电子装置。 提供了具有以下结构的喹喔啉衍生物：其中2-位的碳和喹喔啉的3-位的碳和1,3,4-恶二唑环的碳中的至少一个通过亚芳基结合。

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