Lg Chem, Ltd

Sungkyunkwan University

Minseung Chun

Dong Hoon Lee

Tae Yoon Park

Dongheon Kim

Sung Kil Hong

Kongkyeom Kim

Sang Young Jeon

Seong So Kim

Jungi Jang

Hyoung Seok Kim

Boonjae Jang

Sang Duk Suh

Seongmi Cho

Jae Seung Ha

Jiyeon Ahn

Minyoung Kang

Yongbum Cha

Chang Hwan Kim

Yun Hwan Kim

Hongsik Yoon

Dong Sik Kim

Kidong Koo

Jungoh Huh

Wanpyo Hong

Jungha Lee

Hoyong Lee

Hyungjin Lee

Woochul Lee

Changhwan Shin

Minwoo Choi

Min Woo Jung

Dong Uk Heo

Joo Ho Kim

Ji Hye Kim

Boon Jae Jang

Jin Joo Kim

Ji Young Choi

Minjun Kim

Sujeong Geum

Sung-Kil Hong

Yeon Hwan Kim

Jae Tak Lee

Hwakyung Kim

Hyok Joon Kwon

Hoon Jun Kim

Wooyung Jung

Jun Yeob Lee

Ho Jung Lee

Hyeon Soo Jeon

Kyung Seok Jeong

Joongsuk Oh

Hyoungcheul Kim

Yujin Kang

Wonik Jeong

Wonik Jung

Jaeeun Kim

Provided is an organic light emitting device comprising an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein:

Organic light emitting device

The present disclosure relates to a compound of Chemical Formula 1, and a composition and an organic light emitting device including the same. The composition including the compound or a cured material thereof is included in an organic material layer of the organic light emitting device.

Compound, composition comprising same, and organic light emitting diode comprising same

Provided is an organic electroluminescent device, the organic electroluminescent device comprising a cathode, an anode, and one or more organic material layers provided between the cathode and the anode, the one or more organic material layers comprising a light emitting layer, an electron transport region and a hole transport region, wherein all of the organic materials, other than a dopant, contained in the one or more organic material layers have a triplet state energy of 2.5 eV or higher, at least three types of the organic materials having a triplet state energy of 2.5 eV or higher have a triplet state energy of 2.7 eV or higher, and at least two types of the organic materials having a triplet state energy of 2.5 eV or higher include a spiro compound.

Organic electroluminescent device

Provided is an organic light-emitting device including: an anode; a cathode facing the anode; two or more light-emitting layers provided between the anode and the cathode and each having a maximum light emission peak of ≤500 nm (≤500 nm emission layer); and a light-emitting layer provided between the two or more ≤500 nm emission layers, and having a maximum light emission peak at >500 nm (>500 nm emission layer), where a distance from the anode to the ≤500 nm emission layer most adjacent to the anode is 100 nm to 200 nm, the distance from the anode to the ≤500 nm emission most adjacent to the cathode is three to four times the distance from the anode to the ≤500 nm emission layer most adjacent to the anode, and an N-type charge generation layer including an alkali metal and a P-type charge generation layer including a material with an electron affinity of ≥4.8 eV are provided between each of the ≤500 nm emission layers and the emission >500 nm emission layer.

Organic light-emitting device

Provided is an organic light-emitting device including: an anode; a cathode provided to face the anode; and organic material layers including a light emitting layer disposed between the anode and the cathode, wherein the light emitting layer, one or more layers of the organic material layers disposed between the anode and the light emitting layer, and one or more layers from among the organic material layers disposed between the cathode and the light emitting layer, each include one or more compounds each composed of sp3 carbon as a center, the light emitting layer includes a host including one or more anthracene-based compounds, and among organic materials included in the organic material layers, the bandgap energy (E) of each of the organic materials except for a dopant compound is 3 eV or more.

An organic light emitting device including a first electrode, a second electrode provided opposite to the first electrode, and an organic material layer provided between the first electrode and the second electrode, wherein the organic material layer includes a hole transfer layer and an electron blocking layer, and the hole transfer layer and the electron blocking layer include a compound of Chemical Formula 1, the materials of the hole transfer layer and the electron blocking layer are different from each other, and one or more layers that are not the hole transfer layer and the electron blocking layer of the organic material layer include a compound of Chemical Formula 2.

A method of screening for an electron transport material included in an electron transport layer of an organic light emitting device and a method of screening for a hole blocking material included in a hole blocking layer of the organic light emitting device, the method using a heterogeneous electron transfer rate constant (K) value to select the electron transport material and an electron donating rate constant kto select the hole blocking material, thereby capable of realizing the organic light emitting device having an excellent balance between luminous efficiency and lifetime.

Method of screening for electron transport material and hole blocking material used in organic light emitting device

Provided is a compound of Chemical Formula 1:

Compound and organic light emitting device comprising same

Compound and organic light-emitting device comprising same

The present specification relates to an organic light emitting device including: an anode; a cathode disposed to face the anode; and a light emitting layer disposed between the anode and the cathode, in which the light emitting layer includes: a host including a P-type host and an N-type host, which produce an exciplex; and a phosphorescent dopant, and the host including the P-type host and the N-type host, which produce an exciplex, emits a photoluminescence light with a longer wavelength than a wavelength of each of the P-type host and the N-type host.

Organic light emitting element

The present specification provides a heterocyclic compound of Chemical Formula 1, and an organic light emitting device comprising the same. The heterocyclic compound used as a material of an organic material layer of an organic light emitting device provides enhanced efficiency, low driving voltage, and enhanced lifetime properties of the organic light emitting device. 

Heterocyclic compound and organic light emitting element comprising same

Provided is a heterocyclic compound of Chemical Formula 1: 

Polycyclic aromatic compounds containing a 1,11-dioxa-,1,11-dithia-, or 1-oxa-11-thia-4,8-diaza-11b-boradicyclopenta[a,j]phenalene core and organic light-emitting device comprising same

The present specification provides a heterocyclic compound and an organic light emitting device comprising the same.

Heterocyclic compound and organic light-emitting device comprising same

The present specification relates to an organic electronic device in which a novel compound that may improve a life-span, efficiency, a driving voltage drop, and stability of the organic electronic device is contained in an organic material layer.

Compounds and organic electronic device using the same

An embodiment of the present invention discloses an organic light emitting diode comprising an organic layer consisting of one layer or more, which includes a transparent electrode, a reflective electrode provided facing the transparent elector, and a light emitting layer provided between the transparent electrode and the reflective electrode. Here, the light emitting layer includes two or more light emitting materials and is characterized in that the difference between the dipole moment value of one light emitting material and the dipole moment value of another light emitting material from among the light emitting materials is 1.5 Debye or more.

Organic light emitting diode

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Daejeon, South Korea

Minseung Chun