Lg Chem, Ltd

Lg Chemical Co., Ltd.

Jun Gi Jang

Yeon Hwan Kim

Kong Kyeom Kim

Jae Soon Bae

Dong Hoon Lee

Ji Eun Kim

Sang Young Jeon

Jae C Lee

Dae Woong Lee

Byung Sun Jeon

Wook Dong Cho

Hyeon Sik Choi

Minsoo Kang

Seokhee Yoon

Yun Hye Hahm

Min Jeong Lee

Young Chul Lee

Jae Min Moon

Seok Hee Yoon

Dong Seob Jeong

Jeoung Kwen Noh

Ji Weon Jeong

Young Kyu Han

Sae Hwan Son

Min Soo Kang

Ji Eun 7-403 Lg Chemistry Apt 381-42 Kim

Jae Min 3-507 Lg Chemistry Dormitory Moon

Seok Hee 302-904 Songgang Green Apt Yoon

Wook Dong 107-1006 Expo Apt 15/3 464-1 Cho

Disclosed is a stacked organic light emitting device and a display apparatus including the stacked organic light emitting device. The stacked organic light emitting device includes an anode connected to an external power source, a cathode connected to the external power source, at least two light emitting sections aligned between the anode and the cathode, including a light emitting layer, and an internal electrode aligned between the light emitting sections. The internal electrode is a single-layered internal electrode which is made from one selected from the group consisting of a metal, alloys of the metal, and metal oxides thereof, having a work function below 4.5 eV, each light emitting section includes an organic material layer containing an organic material having an electron affinity above 4 eV, and the organic material layer is formed between the light emitting layer of the light emitting section and the electrode facing the anode connected to the external power source in two electrodes which make contact with the light emitting section.

Stacked organic light emitting device having high efficiency and high brightness

The present invention relates to a new binaphthalene derivative, a preparation method thereof, and an organic electronic device using the same. The binaphthalene derivative according to the present invention can perform functions of hole injection and transportation, electron injection and transportation, or light emission in an organic electronic device including an organic light-emitting device, and the device according to the present invention has excellent characteristics in terms of efficiency, drive voltage and stability, and in particular excellent effects such as a low voltage and a long life time.

Binaphthalene derivatives, preparation method thereof and organic electronic device using the same

A stacked organic light emitting device that includes an anode connected to an external power source, a cathode connected to the external power source, at least two light emitting sections aligned between the anode and the cathode, including a light emitting layer, and an internal electrode aligned between the light emitting sections. The internal electrode is a single-layered internal electrode which is made from one selected from the group consisting of a metal, alloys of the metal, and metal oxides thereof, having a work function below 4.5 eV, each light emitting section includes an organic material layer containing an organic material having an electron affinity above 4 eV, and the organic material layer is formed between the light emitting layer of the light emitting section and the electrode facing the anode connected to the external power source in two electrodes which make contact with the light emitting section.

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

The present invention relates to a new imidazole derivative, a method for preparing the derivative, and an organic electronic device using the derivative. The imidazole derivative according to the invention can perform functions of hole injection, hole transportation, electron injection, electron transportation, and/or light emission in an organic electronic device including an organic light-emitting device. The organic electronic device according to the invention exhibits excellent characteristics in terms of efficiency, drive voltage and stability.

Imidazole derivatives, preparation method thereof and organic electronic device using the same

Disclosed is an organic light emitting device. The organic light emitting device comprises a first electrode, organic material layer(s) comprising a light emitting layer, and a second electrode. The first electrode, the organic material layer(s), and the second electrode form layered structure and at least one layer of the organic material layer(s) include the compound of Formula 1 or the compound of Formula 1 into which a thermosetting or photo-crosslinkable functional group is introduced.

Compound and organic light emitting device 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 is a compound of Formula 1 and an organic light emitting device using the same. In Formula 1, R1 to R3 and X1 to X3 are as described in the specification. The compound of Formula 1 acts as a hole injection material, a hole transport material, a light emitting host, or a light emitting dopant in the organic light emitting device depending on the type of substituent.

Carbazole derivative and organic light emitting device using same

Growing community of inventors

Daejeon Metropolitan, South Korea

Jun Gi Jang