Samsung Display Co., Ltd.

Yangjin Cho

Seulong Kim

Jaehoon Hwang

Hajin Song

Pilgu Kang

Jihwan Yoon

Jungho Choi

Soonchul Chang

Dongseob Jeong

Hyekyun Lee

Eungyoung Park

Jiyoung Song

Jina Hur

Provided are a heterocyclic compound, a light-emitting device including the heterocyclic compound, and an electronic apparatus including the light-emitting device. The heterocyclic compound is represented by Formula 1, which is explained in the specification. The light-emitting device is capable of maintaining efficiency and color expression at constant levels.

Heterocyclic compound, light-emitting device including the same, and electronic apparatus including the light-emitting device

Provided are a light-emitting device and an electronic apparatus including the same. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The interlayer includes an emission layer, the emission layer includes a host, a first dopant, and a second dopant, the host, the first dopant, and the second dopant are different from each other, the host includes a compound represented by Formula 1 below, and the light-emitting device satisfies Relationship Equation 1: ()≥(2)≥()≥(1)≥(2)  [Relationship Equation 1] Formula 1 and Relationship Equation 1 are as described in the specification.

Light-emitting device and electronic apparatus including the same

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.

Organic light-emitting device

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Yongin-si, South Korea

Yangjin Cho