LIGHT-EMITTING ELEMENT LIGHT-EMITTING DEVICE AND ELECTRONIC APPLIANCE

Provided is a light emitting element that can easily adjust color in a multicolor light emitting element in which light emitting layers having different luminous colors are stacked. In addition, provided is a multicolor light emitting element that is inexpensive and has good luminous efficiency. Pro...

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Bibliographic Details
Main Authors MATSUBARA TOMOE, SEO SATOSHI
Format Patent
LanguageEnglish
Korean
Published 23.06.2020
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Summary:Provided is a light emitting element that can easily adjust color in a multicolor light emitting element in which light emitting layers having different luminous colors are stacked. In addition, provided is a multicolor light emitting element that is inexpensive and has good luminous efficiency. Provided is a light emitting element obtaining all light from at least two light emitting layers from an excitation complex in the light emitting element formed by contacting the two light emitting layers having different luminous colors. In addition, provided is the light emitting element in which the excitation complex emits delayed fluorescence. The light emitting element comprises a first light emitting layer and a second light emitting layer. 본 발명은 상이한 발광색을 나타내는 발광층을 적층시킨 다색 발광 소자에서 색을 조절하기 쉬운 발광 소자를 제공한다. 또한, 저렴하고 발광 효율이 양호한 다색 발광 소자를 제공한다. 상이한 발광색을 나타내는 적어도 2층의 발광층이 접하여 형성된 발광 소자에서 상기 2층의 발광층으로부터의 광을 모두 여기 착체로부터 얻는 발광 소자를 제공한다. 또한, 상기 여기 착체가 지연 형광을 발하는 발광 소자를 제공한다.
Bibliography:Application Number: KR20200072068