Lg Chem, Ltd

Yeon Hwan Kim

Sang Young Jeon

Yong Bum Cha

Jun Gi Jang

Sung Jae Lee

Sung Kil Hong

Kong Kyeom Kim

Hyeon Sik Choi

Wanpyo Hong

Minsoo Kang

Seokhee Yoon

Jae Seung Ha

Min Jeong Lee

Seong Mi Cho

Jun Woo Yun

Yeon Ho Cho

Young Kyu Han

Sae Hwan Son

Yongbum Cha

Sang Duk Suh

Ji Eun Kim

Ji Hye Kim

Su Jin Han

Minseung Chun

Min Soo Kang

Jae C Lee

Nansra Heo

Dongheon Kim

Hyungjin Lee

Yun Hye Hahm

Jae Tak Lee

Jae Soon Bae

Byung Sun Jeon

Wook Dong Cho

Heungwoo Choi

Joo Yong Yoon

Sunmin Kim

Provided is an organic light emitting device that includes an anode, a cathode provided to face the anode, and one or more light emitting units provided between the anode and the cathode, wherein the organic light emitting device includes a charge generation layer provided between the anode and the one light emitting unit, or between the two light emitting units adjacent to each other among the light emitting units, the charge generation layer comprises a p-type charge injection layer, a p-type charge generation layer, or a layer which simultaneously injects and generates p-type charges, and the p-type charge injection layer, the p-type charge generation layer, or the layer which simultaneously injects and generates p-type charges has electric conductivity of 1×10S/cm or more.

Organic light emitting element

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 the same

Organic light emitting device

The present disclosure relates to a compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device. 

Compound and organic light emitting device using the same

Provided is a compound of Chemical Formula:  where Rand Rare each independently hydrogen, a substituted or unsubstituted Calkyl, a substituted or unsubstituted Calkoxy, a substituted or unsubstituted Chaloalkyl, a substituted or unsubstituted Chaloalkoxy, halogen, cyano, tri(Calkyl)silyl, a substituted or unsubstituted Caryl, or a substituted or unsubstituted Cheteroaryl containing at least one of O, N, Si and S, Rand Rare each independently hydrogen, deuterium, a substituted or unsubstituted Calkyl, a substituted or unsubstituted Calkoxy, a substituted or unsubstituted Chaloalkyl, a substituted or unsubstituted Chaloalkoxy, halogen, cyano, tri(Calkyl)silyl, or a substituted or unsubstituted Cheteroaryl containing at least one of O, N, Si and S, and Ar is Caryl, or Cheteroaryl containing at least one of O, N, Si and S, wherein the Caryl, or Cheteroaryl is substituted with 1 to 5 substituents each selected from the group consisting of a substituted or unsubstituted Calkyl, a substituted or unsubstituted Calkoxy, a substituted or unsubstituted Chaloalkyl, a substituted or unsubstituted Chaloalkoxy, halogen, cyano, and tri(Calkyl)silyl, and an organic light emitting device including the same.

Compound and organic light emitting device comprising same

The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device. 

The present disclosure relates to a cyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device, provides improved efficiency, low driving voltage, and improved lifetime characteristics. 

Heterocyclic compound and organic light emitting device comprising the same

The present invention relates to a novel amine-based compound represented by Chemical Formula 1 and an organic light emitting device including the same. The compound provides improved efficiency, low driving voltage, and improved lifetime characteristic of the organic light emitting device. 

Amine-based compound and organic light emitting device using the same

Provided is an organic light emitting device.

Disclosed is a compound represented by formula 1: wherein each of A, X, Y, Y' and Y&#x2033; has the same meaning as described herein. When used in an organic light emitting device, the compound represented by formula 1 has at least one function selected from the group consisting of hole injection, hole transport, light emitting, electron transport, electron injection, etc., depending on the type of each unit forming the trimer or substituents in each unit. An organic light emitting device is also disclosed. The organic light emitting device includes a first electrode, an organic film having one or more layers and a second electrode, laminated successively, wherein at least one layer of the organic film includes at least one compound represented by formula 1.

Organic compound and organic light emitting device using the same

The present invention relates to a novel compound that can significantly improve the lifespan, efficiency and thermal stability of an organic light emitting device, and to an organic electroluminescence device or light emitting device comprising the compound in an organic compound layer is also disclosed.

Materials for injecting or transporting holes and organic electroluminescence devices using the same

An organic electronic device. The device includes a first electrode to inject or extract hole, the first electrode including a conductive layer and an n-type organic compound layer disposed on the conductive layer, a second electrode to inject or extract electron, a p-type organic compound layer disposed between the n-type organic compound layer and the second electrode. The p-type organic compound layer forms an NP junction between the n-type organic compound layer and the p-type organic compound layer. The energy difference between a lowest unoccupied molecular orbital (LUMO) energy of the n-type organic compound layer and a Fermi energy of the conductive layer is about 2 eV or less, and the energy difference between the LUMO energy of the n-type organic compound layer and a highest unoccupied molecular orbital (HOMO) energy of the p-type organic compound layer is about 1 eV or less.

Organic electronic device

Disclosed herein are a luminescent material represented by Chemical Formula 1 and an organic electroluminescent device using the same.

Growing community of inventors

Daejeon, South Korea

Yeon Hwan Kim