Samsung Display Co., Ltd.

Korea Advanced Institute of Science and Technology

Nic Lab Co., Ltd.

Jaekook Ha

Sehun Kim

Dukki Kim

Changhee Lee

Yunku Jung

Hyojin Ko

Hyunmi Doh

Dongwoo Shin

Jaehoon Kim

Jongwon Park

Seungmook Lee

Sungwoon Kim

Junwoo Park

Jaeyun Kim

Heunggyu Kim

Junbo Sim

Hyeran Mun

Myoungjin Park

Yunhyuk Ko

Seunguk Noh

Juyon Lee

Hyunwoo Lee

Jae Hong Park

Eungdo Kim

Minki Nam

Eunju Nam

JunBo Sim

Hyekyoung Choi

Wonjun Park

Taeheon Kang

Jaehong Kim

Naoyuki Ito

Jonghyuk Kang

Donghoon Kwak

Jaehoon Jung

YunHyuk Ko

Youngil Kim

Jonghoon Kim

Jaesung Lim

Bumjoon Kim

Won-jun Park

Lokgam Jung

Changho Cho

Hanyoung Choi

Changyeon Lee

An ink composition for a light-emitting device includes a phosphine oxide-based charge transporting organic material, a first solvent represented by Formula 1, a second solvent represented by Formula 2, and a third solvent that is polar aprotic. A light-emitting device includes a layer prepared with the in composition. An electronic apparatus includes the light-emitting device:HOR(O)ROH  [Formula 1]ROR.  [Formula 2]

Ink composition for light-emitting device and light emitting device manufactured using same

Disclosed are a light-emitting device and a method of manufacturing the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including a quantum dot including a first ligand bonded to a surface thereof; and a charge transport layer including an inorganic nanoparticle including a second ligand bonded to a surface thereof, wherein an interface between the emission layer and the charge transport layer includes a cross-link in which the first ligand on the surface of the quantum dot and the second ligand on the surface of the inorganic nanoparticle are linked by a cross-linking agent.

Light-emitting device and method of manufacturing the same

An ink composition including a mixed solvent including a first solvent and a second solvent, and a light emitting material, wherein the first solvent and the second solvent each have a vapor pressure of about 1×10or greater and a boiling point of about 270° C. or less. The ink composition according to an embodiment may be applied to forming an emission layer of a light emitting diode to provide a light emitting diode having increased efficiency.

Ink composition, light emitting diode, and method for manufacturing light emitting diode

A method of forming a hole injection layer, a hole injection layer ink composition, and a light-emitting device manufactured by using the hole injection layer ink composition.

Method of forming hole injection layer, hole injection layer ink composition, and light-emitting device manufactured by using hole injection layer ink composition

A quantum dot composition according to one or more embodiments includes a quantum dot, a first ligand including a first head portion bonded to a surface of the quantum dot and a first tail portion having a crosslinkable functional group at a terminal of the first ligand, and a second ligand bonded to the surface of the quantum dot and being shorter in length than the first ligand. A quantum dot composition according to one or more embodiments is applied to a light-emitting element and a display device, and thus, it is possible to improve a luminous efficiency and element lifespan of the light-emitting element and the display device.

Quantum dot composition, light-emitting element and display device including the same

An ink composition for forming an electron transport region in a light emitting element includes inorganic nanoparticles and a first solvent having a Hansen solubility parameter hydrogen bonding term (δH) value of 5 or less in order to increase dispersion stability of the inorganic nanoparticles, and thereby prevent or reduce nozzle clogging in the head of an inkjet printing device.

Ink composition and method for manufacturing light emitting element

Provided are an ink composition, an organic light-emitting device using the ink composition, and a method of manufacturing an organic light-emitting device using the ink composition. The ink composition contains a compound represented by Formula 1, an amine-based compound, and a polar solvent:

Ink composition, organic light-emitting device using the ink composition, and method of manufacturing organic light-emitting device using the ink composition

A composition including a block copolymer, a quantum dot precursor, and a solvent, a method of forming a quantum dot layer with the composition, a quantum dot layer formed from the composition, and a light-emitting device including the quantum dot layer.

Composition and method of forming quantum dot layer with the composition, quantum dot layer and light-emitting device including the quantum dot layer

A composition for forming a light-emitting device, a method of manufacturing a light-emitting device utilizing the composition, and a light-emitting device manufactured utilizing the composition are provided. The composition includes two or more solvents and a boiling point of a first solvent having the highest boiling point among the two or more solvents is greater than 300° C.

Composition for forming light-emitting device, method of manufacturing light-emitting device using the composition, and light-emitting device manufactured using the method

According to one aspect of the invention, a hole-transporting ink composition for a light emitting device, the hole-transporting ink composition includes an adhesion-promoting compound represented by Formula 1 and a hole-transporting compound:A—B—C  Formula 1 wherein, in Formula 1, the variables are defined above.

Hole-transporting ink composition, light-emitting device, and method of preparing the light-emitting device

A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.

Method for manufacturing a light emitting element including a quantum dot composition

A light-emitting device includes a first electrode, an emission layer, an electron transport layer, a metal-nucleation inducing layer, and a second electrode. The metal-nucleation inducing layer is in direct contact with the second electrode, and includes a metal-nucleation inducing material having at least one metal-nucleation inducing group. The second electrode includes a metal-containing film that is hybridized with the metal-nucleation inducing material. The metal-nucleation inducing group is a π electron-deficient nitrogen-containing C-Ccyclic group that is unsubstituted or substituted with at least one Ror a group represented by one of Formulae 1A to 1E, and does not comprise a group represented by *—C(═O)(OH) and a cyano group. The emission efficiency and/or lifespan of the light-emitting device may be improved because of the metal-nucleation inducing layer.

Light-emitting device and apparatus including the same

Provided are an azide-based compound, an organic light-emitting device including the azide-based compound, and a method of manufacturing the organic light-emitting device.

Azide-based compound, organic light-emitting device including the azide-based compound, and method of manufacturing the organic light-emitting device

A quantum dot includes: a nanoparticle; and a ligand represented by Formula 1 on a surface of the nanoparticle: Ais an anchoring group linked to the surface of the nanoparticle, and Amay be selected from groups represented by Formulae A-1 to A-4: wherein * in Formulae A-1 to A-4 indicates a binding site to a neighboring atom.

Quantum dot, and ink composition, light-emitting device, optical member, and apparatus including quantum dot

Provided are an ink composition, a light-emitting apparatus using the ink composition, and a method of manufacturing the light-emitting apparatus. The ink composition may include a light-emitting device, a solvent, and an organic thickener, and the organic thickener is a polymeric compound including at least one group represented by Formula 1:

Ink composition, light-emitting apparatus using ink composition, and method of manufacturing light-emitting apparatus

Growing community of inventors

Yongin-si, South Korea

Jaekook Ha