Light-emitting device, light-emitting apparatus, electronic device, and lighting device

TW202641152APending Publication Date: 2026-10-01SEMICON ENERGY LAB CO LTD
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Patent Information

Application Number
TW115106836
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2018-11-29
Filing Date
2019-09-24
Publication Date
2026-10-01

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Abstract

A light-emitting device including an EL layer including a first layer, a second layer, a third layer, a light-emitting layer, and a fourth layer in this order from the anode side is provided. The first layer contains a first organic compound and a second organic compound. The light-emitting layer contains a sixth organic compound. The fourth layer contains a seventh organic compound. The first organic compound exhibits an electron-accepting property with respect to the second organic compound. A HOMO level of the second organic compound is higher than or equal to
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