Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Duk San Neolux Co., Ltd.

University-industry Cooperation Group of Kyung Hee University

Samsung Displayco., Ltd.

Industry-academic Cooperation Foundation Gyeongsang National University

Duksan High Metal Co., Ltd.

Daeyup Shin

Taekyung Kim

Seulong Kim

Jungsub Lee

Kwanhee Lee

Junghwan Park

Daesung Kim

Kiwon Kim

Mikyung Kim

Wonsam Kim

Soungyun Mun

Jungcheol Park

Hwasoon Jung

Dongha Kim

Jihun Byun

Yongwook Park

Eunkyung Kim

Jinuk Ju

Sungjin Park

Youngkook Kim

Hyein Jeong

Jihwan Yoon

Jangyeol Baek

Taeshick Kim

Yun-Hi Kim

Soon-ki Kwon

Yun-hi Kim

Yoonkyoo Lee

Daehyuk Choi

Miehwa Park

Jaeyoung Hwang

Hansung Yu

JangHyuk Kwon

Yeonhee Ha

Dongheon Kim

Juyoung Lee

Daehyun Ahn

Siwoo Kim

Jisu Moon

An organic light-emitting device and a heterocyclic compound, the device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a heterocyclic compound represented by Formula 1: 

Heterocyclic compound and organic light-emitting device including the same

Provided are a heterocyclic compound represented by Formula 1 below, and an organic electroluminescence device including the same in an emission layer. In Formula 1, X is a direct linkage or CRR, Zto Zare each independently CRor N, at least two of Z, Z, Zand Zare each independently CR, and Ris represented by Formula 2 or Formula 3 below. 

Heterocyclic compound and organic electroluminescence device including the same

Provided are a heterocyclic compound and an organic light-emitting device including the same.

An organic electroluminescence device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1. In Formula 1, Land Lare each independently represented by Formula 2, and Land Lare each independently represented by Formula 3. 

Organic electroluminescence device and polycyclic compound for organic electroluminescence device

Disclosed are a novel-structural compound including a 5-membered heterocycle, an organic electronic device using the same, and a terminal thereof.

Compound containing a 5-membered heterocycle and organic light-emitting diode using same, and terminal for same

An apparatus to evaluate a stability of a luminescent material includes an electrochemical cell that includes a sample including a solvent and the luminescent material mixed in the solvent, a voltage application device that applies a constant voltage to the sample, a light source that irradiates a source light to the sample, and a photoluminescence measuring device that measures a luminescence spectrum of an emission light generated by the luminescent material.

Apparatus of evaluating stability of luminescent material and method of evaluating the same

Provided is an organic light-emitting device including a first electrode, a second electrode, and an emission layer therebetween, wherein the emission layer includes a compound represented by the following formula: 

Organic light emitting device

A condensed cyclic compound that emits high-efficiency delayed fluorescence is provided. The compound may be represented by Formula 1, in which A is a moiety represented by Formula 1-1. In Formula 1-1, Xmay be a carbon or silicon atom linked to Band B, and Xmay be a carbon or silicon atom linked to Band B. When the compound represented by Formula 1 satisfies E&#x3c;2E&#x3c;E(wherein Eis the first singlet energy level, Eis the first triplet energy level, and Eis the second triplet energy level of the condensed cyclic compound), an energy transition to a second triplet state may be disfavored during up-conversion of the condensed cyclic compound from a triplet state to a singlet state through interaction with an adjacent molecule in a triplet energy state.

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

An organic light-emitting device and an electronic device, the organic light-emitting device including 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 emission layer includes a first host, a second host, and a dopant, the first host includes a compound represented by Formula 1, and the second host includes a compound represented by Formula 2: 

Organic light-emitting device

A compound, an organic light-emitting device, and a flat display apparatus, the compound being represented by any one selected from the following Formula 1, Formula 2, and Formula 3: 

Compound and organic light-emitting device including the same

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Suwon-si, South Korea

Daeyup Shin