Light-emitting element

JP2026094370APending Publication Date: 2026-06-09SEMICON ENERGY LAB CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SEMICON ENERGY LAB CO LTD
Filing Date
2026-03-05
Publication Date
2026-06-09

AI Technical Summary

Benefits of technology

【0046】 本発明の一態様では、長寿命の発光素子を提供できる。該発光素子を用いることで、信頼 性の高い発光装置、電子機器、及び照明装置を提供できる。また、本発明の一態様では、 高輝度領域で高い発光効率を示す発光素子を提供できる。該発光素子を用いることで、発 光効率の高い発光装置、電子機器、及び照明装置を提供できる。

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Abstract

To provide a long-life light-emitting device. To provide a light-emitting device that exhibits high luminous efficiency in a high-brightness region. To do. 【Solution means】Between a pair of electrodes, there is a light-emitting layer, and the light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by the general formula (G0). The compound, the molecular weight of the first organic compound is 500 or more and 2000 or less, and the second organic compound is a compound having electron-transporting properties. In the general formula (G0), Ar 1 and Ar 2 each independently represents a fluorenyl group, a spirofluorenyl group, or a biphenyl yl group, and Ar 3 represents a substituent containing a carbazole skeleton. JPEG2026094370000057.jpg35165
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Claims

[Claim 1] A light-emitting layer is provided between a pair of electrodes. The light-emitting layer comprises a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is a compound represented by the general formula (G0), The molecular weight of the first organic compound is 500 or more and 2000 or less. The second organic compound is a light-emitting element that has electron-transporting properties. 【Chemistry 1】 (In the general formula (G0), Ar １ and Ar ２ Each of these independently represents a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spirofluorenyl group, or a substituted or unsubstituted biphenyl group, and Ar ３ (This represents a substituent containing the carbazole skeleton.)