Samsung Display Co., Ltd.

Pusan National University

Jin-Soo Hwang

Myeong-Suk Kim

Sung-Wook Kim

Jae-Hong Kim

Hwan-Hee Cho

Sam-Il Kho

Hong-Suk Suh

Se-Hun Kim

Soung-Wook Kim

Hye-In Jeong

Seok-Hwan Hwang

Chang-Woong Chu

Seung-Gak Yang

Ja-Hyun Im

Ji-Hyun Seo

Sung-Ho Jin

Hong-Suk Seo

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 layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8:+0.15 electron volts (eV)  Equation 1+0.15 eV  Equation 2  Equation 3  Equation 4  Equation 5+0.1 eV  Equation 6−5.6 eV≥  Equation 7.  Equation 8

Organic light-emitting device

According to one or more embodiments, an organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by one selected from Formulae 2-1 to 2-3:

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 layer includes a first compound represented by Formula 1 and a second compound represented by Formula 501. The organic light-emitting device including the first compound and the second compound may have low driving voltage, high efficiency, and high luminance.

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 layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8:+0.15 electron volts (eV)&#x2003;&#x2003;Equation 1+0.15 eV&#x2003;&#x2003;Equation 2&#x2003;&#x2003;Equation 3&#x2003;&#x2003;Equation 4&#x2003;&#x2003;Equation 5+0.1 eV&#x2003;&#x2003;Equation 6&#x2212;5.6 eV&#x2265;&#x2003;&#x2003;Equation 7.&#x2003;&#x2003;Equation 8

An organic light-emitting device includes a first electrode and a second electrode facing the first electrode. An organic layer is disposed between the first electrode and the second electrode. The organic layer includes an emission layer, a first compound and a second compound.

A compound, an organic light-emitting device, and a display apparatus, the compound being represented by Formula 1: 

Compound and organic light-emitting device including the same

An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode; an electron transport region disposed between the emission layer and the second electrode; and a hole transport region disposed between the first electrode and the emission layer, wherein the electron transport region comprises at least one of an electron transport material represented by Formula 1 below; and the hole transport region comprises at least one of a hole transport material represented by Formula 2 or 3 below: 

In an aspect, an organic light-emitting device is provided.

A condensed cyclic compound is represented by Formula 1. An organic light-emitting device includes the condensed cyclic compound represented by Formula 1.  X, Y, Y, A, B, and Rof Formula 1 are described herein. An organic light-emitting device including an organic layer including the condensed cyclic compound may have low driving voltage, high efficiency, high brightness, and long lifespan.

Condensed cyclic compound and organic light-emitting device including the same

An organic light-emitting device including a first electrode; a second electrode opposite to the first electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer, wherein the emission layer includes at least one organometallic compound represented by Formula 1; and wherein the hole transport region includes at least one selected carbazole-based compound represented by Formula 2: 

Organic light-emitting devices

According to an embodiment of the present invention, an organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode. The organic light-emitting device includes a hole transport zone between the first electrode and the emission layer and includes an auxiliary layer, wherein the auxiliary layer includes at least one auxiliary material represented by Formula 1 below, and wherein the emission layer includes at least one light-emitting material represented by Formula 2 below. 

An organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, wherein the hole transport region includes a first compound represented by Formula 1. 

An 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 at least one condensed cyclic compound represented by Formula 1:  The organic light-emitting device including the condensed cyclic compound represented by Formula 1 may have low driving voltage, high efficiency, high brightness, and long lifespan.

A condensed cyclic compound is represented by Formula 1, and an organic light-emitting device includes the condensed cyclic compound. The organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer. The organic layer includes an emission layer and the condensed-cyclic compound. 

A heterocyclic compound, an organic light-emitting device, and a flat panel display apparatus, the compound being represented by Formula 1, below: 

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Yongin, South Korea

Jin-Soo Hwang