Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Illsoo Park

Seulong Kim

Hyosup Shin

Sunghun Lee

Hyomin Kim

Jongseok Han

Sijin Sung

Jaehong Kim

Jaeyong Lee

Gina Yoo

Mugyeom Kim

Heeseong Jeong

Minkyung Kim

Taekyung Kim

Sunwoo Kang

Sunhwa Kim

Eunkyung Koh

A method of manufacturing a display apparatus includes forming a first electrode on a substrate, forming a pixel-defining layer on the first electrode, the pixel-defining layer including an opening through which at least part of the first electrode is exposed, and performing a first dry cleaning on a surface of the at least part of the first electrode that is exposed through the opening. An indium-fluorine bond is formed on the surface of the at least part of the first electrode through the first dry cleaning.

Display apparatus and method of manufacturing the same

A light-emitting device includes: a substrate including a first subpixel, as second subpixel, and a third subpixel; a plurality of first electrodes respectively in the first subpixel, the second subpixel, and the third subpixel of the substrate; a second electrode facing the first electrode; an emission layer located between the plurality of first electrodes and the second electrode; a hole injection layer between the plurality of first electrodes and the emission layer; a first common layer between the hole injection layer and the emission layer, the first common layer integrated with the first subpixel, the second subpixel, and the third subpixel; a second common layer between the hole injection layer and the first common layer, the second common layer integrated with the first subpixel, the second subpixel, and the third subpixel, wherein the first common layer and the second common layer satisfy certain conditions. In particular, the first common layer consists of a blue host, and the blue host satisfies Equations 1 and 2:||  Equation 1||.  Equation 2

Light-emitting device

A method of manufacturing a display apparatus includes: forming a pixel electrode on a substrate; forming a pixel defining layer covering at least an edge of the pixel electrode and including an opening exposing a part of the pixel electrode; performing first dry cleaning by adding oxygen gas (O) to a surface of the pixel electrode exposed by the opening in the pixel defining layer, wherein the oxygen gas (O) is added at a flow rate in a range of about 1,200 sccm to about 3,600 sccm; performing second dry cleaning after the first dry cleaning; forming an intermediate layer on the pixel electrode after the second dry cleaning; and forming an opposite electrode on the intermediate layer and the pixel defining layer.

Method of manufacturing display apparatus

An organic light-emitting device including: a first electrode, a hole transport region including a first hole transport layer (HTL), an emission layer, an electron transport region; and a second electrode; wherein the first HTL includes a first compound and a second compound, the emission layer includes a third compound and a fourth compound, the electron affinity of the second compound is greater than the electron affinity of the first compound, a lowest unoccupied molecular orbital (LUMO) energy level of the fourth compound is greater than a LUMO energy level of the third compound, the second compound and the third compound are different from each other, and the minimum anionic dissociation energy of the second compound is greater than the triplet energy of the third compound.

Organic light-emitting device

Provided are condensed cyclic compounds represented by Formula 1: and an organic light-emitting device having the compounds which has decreased driving voltage, higher efficiency, and increased overall lifespan.

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

A compound for an organic light-emitting device, the compound represented by Chemical Formula 1 and satisfying Mathematical Formula 1: E&#x3c;2E&#x3c;E,&#x2003;&#x2003;Mathematical Formula 1wherein, in Mathematical Formula 1, Eis a first singlet energy of the compound; Eis a first triplet energy of the compound; and Eis a second triplet energy of the compound.

Compound for organic light-emitting device and organic light-emitting device including the same

A display apparatus includes an emission portion disposed on a substrate and comprising an intermediate layer; and an encapsulation portion sealing the emission portion by overlapping the emission portion, wherein the intermediate layer comprises at least two organic materials, the organic materials having different phase transition temperatures at a first saturated vapor pressure in a range from 5&#xd7;10Torr to 3&#xd7;10Torr, and the difference between the phase transition temperatures being less than or equal to 5&#xb0; C.

Growing community of inventors

Yongin-si, South Korea

Illsoo Park