LIGHT-EMITTING DEVICE, DISPLAY DEVICE, DISPLAY MODULE, ELECTRONIC APPARATUS
To provide a novel light-emitting device that is highly convenient, useful, or reliable.SOLUTION: A light-emitting device includes a first electrode, a second electrode, a first unit and a first layer. The first unit is interposed between the first electrode and the second electrode, and the first u...
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| Zusammenfassung: | To provide a novel light-emitting device that is highly convenient, useful, or reliable.SOLUTION: A light-emitting device includes a first electrode, a second electrode, a first unit and a first layer. The first unit is interposed between the first electrode and the second electrode, and the first unit contains a first light-emitting material. The first layer is interposed between the second electrode and the first unit, and the first layer contains a first organic compound and a second organic compound. The first organic compound has an acid dissociation constant pKa of 8 or more, and the second organic compound does not contain a pyridine ring, or does not contain a phenanthroline ring, or contains one phenanthroline ring.SELECTED DRAWING: Figure 1
【課題】利便性、有用性または信頼性に優れた新規な発光デバイスを提供する。【解決手段】第１の電極と、第２の電極と、第１のユニットと、第１の層と、を有する発光デバイスである。第１のユニットは、第１の電極および第２の電極の間に挟まれ、第１のユニットは、第１の発光性の材料を含む。第１の層は、第２の電極および第１のユニットの間に挟まれ、第１の層は、第１の有機化合物および第２の有機化合物を含む。第１の有機化合物は、８以上の酸解離定数ｐＫａを有し、第２の有機化合物は、ピリジン環を含まない、またはフェナントロリン環を含まない、もしくはフェナントロリン環を１つ有する。【選択図】図１ |
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