Samsung Display Co., Ltd.

Haejin Kim

Soobyung Ko

Eunsoo Ahn

Hyunjung Lee

Junghoon Han

Sujin Shin

Jaesung Lee

Sungbum Kim

Eunyoung Lee

Mina Jeon

Youngkook Kim

Seokhwan Hwang

Mieun Jun

Soo-byung Ko

Jongwoo Kim

Sanghyun Han

Sooyon Kim

Seongjun Lee

Jiseon Lee

Wangwoo Lee

Jinsung An

Sewan Son

Minwoo Woo

Kwanghyun Kim

Samil Kho

Hyoungkun Kim

Hyun Jung Lee

Kwanghyung Kim

Soo-Byung Ko

A light-emitting device includes a first compound being an organometallic compound represented by Formula 1. The light-emitting device may further include a second compound including at least one π electron-deficient nitrogen-containing C-Ccyclic group, a third compound including a group represented by Formula 3, a fourth compound configured to emit delayed fluorescence, or any combination thereof, wherein the first compound, the second compound, the third compound, and the fourth compound are different from each other. The light-emitting device may be included in an electronic apparatus:

Organometallic compound and light-emitting device including the same

An organometallic compound is represented by Formula 1. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one of the organometallic compound represented by Formula 1.

Organometallic compound and organic light-emitting device including the same

Provided are an organometallic compound represented, a light-emitting device including the organometallic compound, and an electronic apparatus including the light-emitting device. The organometallic compound is represented by Formula 1, which is defined in the specification:

Organometallic compound and light-emitting device including organometallic compound

An organic electroluminescence device includes an organometallic compound represented by Formula 1 in an emission layer to achieve high efficiency, low driving voltage, high luminance, and long life:

Organic electroluminescence device and organometallic compound for organic electroluminescence device

Provided are an organometallic compound represented by Formula 1, wherein in Lis a ligand represented by Formula 1-1, an organic light-emitting device including the organometallic compound, and an apparatus including the organometallic compound. The organic light-emitting device includes a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes the organometallic compound.M(L)(L)  Formula 1

Organometallic compound, organic light-emitting device including organometallic compound, and apparatus including organometallic compound

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic light-emitting device includes an organometallic compound represented by Formula 1. When the organometallic compound is used in an organic light-emitting device, the organic light-emitting device may have excellent effects in terms of driving voltage, efficiency, color purity, and/or lifespan:

An organic electroluminescence device is provided and including a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the emission layer may include an organometallic compound, thereby exhibiting high luminous efficiency and long service life characteristics.

Provided are an organometallic compound, an organic light-emitting device including the organometallic compound, and an apparatus including the organic light-emitting device. The organometallic compound is represented by Formula 1:M(L)(L)  <Formula 1> In Formula 1, Lis a ligand represented by Formula 1-1, which is explained in the specification:

Organometallic compound, organic light-emitting device including the organometallic compound, and apparatus including the organic light-emitting device

An organometallic compound represented by Formula 1 and an organic light-emitting device including the same. The substituents of Formula 1 are the same as described in the specification.

An organometallic compound represented by Formula 1, a light-emitting device including the same, and an electronic apparatus including the light-emitting device are disclosed. In Formula 1, the substituents are as described in more detail in the specification.

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

An organic light-emitting device includes: a first electrode; a second electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one organometallic compound of the present embodiments. In the organic light-emitting device, the emission layer may further include a host, and the at least one organometallic compound may be a phosphorescent material or a delayed fluorescent material. The organic light-emitting device including the organometallic compound may have a low driving voltage, a high luminance, a high efficiency, and a long lifespan.

Provided is a method of purifying a phosphorescent dopant, the method including reacting the phosphorescent dopant with AgO.

Method of purifying light-emitting device material and light-emitting device including light-emitting device material

An organic light-emitting device includes an emission layer including a first compound represented by Formula 1, a second compound, and a third compound. The first compound may be an organometallic compound that acts as a phosphorescent dopant, and the second and third compounds may form an exciplex. The device may have a low driving voltage, high luminance, high efficiency, and a long lifespan:

Provided is an organic electroluminescence device. The organic electroluminescence device according to an embodiment includes a first electrode, a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes an organometallic complex including a metal atom which is a central atom, a plurality of ligand connected to the metal atom, and a nitrogen atom connecting two of the plurality of ligands. The nitrogen atom includes an aromatic ring group as a substituent. The aromatic ring group is not bonded to any of the plurality of ligands to form a ring, thereby allowing the organic electroluminescent device to exhibit a low drive voltage and improved life time.

Organic electroluminescence device and organometallic complex for organic electroluminescence device

Provided are an organometallic compound, an organic light-emitting device including the organometallic compound, and an apparatus including the organic light-emitting device. The organometallic compound may be represented by the formula MM(L)(L), wherein Mand Mare each independently selected from a Period 1 transition metal, a Period 2 transition metal, and a Period 3 transition metal; Lis a ligand represented by Formula 1-1 shown below, Lis selected from a monodentate ligand and a bidentate ligand, n11 is 1, and n12 is selected from 0, 1, 2, 3, and 4.

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Yongin-si, South Korea

Haejin Kim