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Light-emitting device, electronic device, and lighting device

專(zhuān)利號(hào)
US11800734B2
公開(kāi)日期
2023-10-24
申請(qǐng)人
Semiconductor Energy Laboratory Co., Ltd.
發(fā)明人
Shunpei Yamazaki; Takeyoshi Watabe; Tomohiro Kubota; Airi Ueda; Satoshi Seo; Nobuharu Ohsawa; Yuko Kubota
IPC分類(lèi)
H01L51/50; H10K50/115; H10K50/16; H10K50/17; H10K85/60
技術(shù)領(lǐng)域
emitting,light,layer,skeleton,phenyl,in,group,oxide,yl,9h
地域： Kanagawa-ken

摘要

A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

說(shuō)明書(shū)

Examples of the TADF material include a fullerene, a derivative thereof, an acridine, a derivative thereof, and an eosin derivative. Furthermore, a metal-containing porphyrin, such as a porphyrin containing magnesium (Mg), zinc (Zn), cadmium (Cd), tin (Sn), platinum (Pt), indium (In), or palladium (Pd), can be given. Examples of the metal-containing porphyrin include a protoporphyrin-tin fluoride complex (SnF2(Proto IX)), a mesoporphyrin-tin fluoride complex (SnF2(Meso IX)), a hematoporphyrin-tin fluoride complex (SnF2(Hemato IX)), a coproporphyrin tetramethyl ester-tin fluoride complex (SnF2(Copro III-4Me)), an octaethylporphyrin-tin fluoride complex (SnF2(OEP)), an etioporphyrin-tin fluoride complex (SnF2(Etio I)), and an octaethylporphyrin-platinum chloride complex (PtCl2OEP), which are represented by the following structural formulae.

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權(quán)利要求

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