Samsung Mobile Display Co., Ltd.

Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Young-Mok Son

O-hyun Kwon

Yu-Jin Kim

Jhun-mo Son

Myeong-Suk Kim

Lyong-Sun Pu

Young-Hun Byun

Chang-Ho Lee

Hee-Joo Ko

Jong-Jin Park

Se-Jin Cho

Jin-Young Yun

Dae-Yup Shin

Das Rupasree Ragini

Bo-Ra Lee

Byoung-ki Choi

Sung-Hun Lee

Jong-jin Park

Sang-hoon Park

Yi-Yeol Lyu

O-Hyun Kwon

Il-Soo Oh

Woon-Jung Paek

Hyea-Weon Shin

Beom-Joon Kim

Mu-Gyeom Kim

Dong-Woo Shin

Dong-Won Lee

Young-Il Kim

Chang-Min Lee

Eun-Sil Han

Sang-Hun Park

Byoung-Ki Choi

Tae-Yong Noh

Hee-Kyung Kim

Yeon-woo Lee

Jung-bae Song

Shinichiro Tamura

Hyun-Ju Choi

Pyung-Eun Jeon

Young-Hoon Kim

Seok-Hwan Hwang

Sang-Soo Kim

Young-Kook Kim

Young-Woo Song

Yoon-Hyun Kwak

Tae-Woo Lee

Eun-Sun Yu

Sang-Yeol Kim

Seong-Ho Kim

Che-Un Yang

Tae-yong Noh

Yu-ri Choi

Haa-Jin Yang

Yeon-Woo Lee

ll-Soo Oh

Ok-Kyung Cho

Jung-Geun Lee

See-Jin Cho

Kim Beom-Joon

Provided is an organic light-emitting device including a first electrode, a second electrode disposed opposite to the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron-transporting layer disposed between the emission layer and the second electrode. The electron-transporting layer includes a first electron-transporting material and a second electron-transporting material. The lowest unoccupied molecular orbital (LUMO) energy level of the first electron-transporting material (EL) and the lowest unoccupied molecular orbital (LUMO) energy level of the second electron-transporting material (EL) satisfy the equation 0.1 eV&#x2266;|EL&#x2212;EL|&#x2266;0.3 eV.

Organic light-emitting device

An organic light emitting display device is disclosed. The organic light emitting display device includes a substrate, a first electrode, a pixel defining layer, a first hydrophobic pattern, at least one charge transport layer, a second hydrophobic pattern, an organic light emitting layer and a second electrode. The substrate has a pixel region and a non pixel region surrounding the pixel region. The first electrode, the at least one charge transport layer and the organic light emitting layer are disposed on the substrate in the pixel region, while the pixel defining layer, the first hydrophobic pattern and the second hydrophobic pattern are disposed on the substrate in the non pixel region. The charge transport layer of one pixel is separated from a charge transport layer of another pixel by the first and second hydrophobic patterns to prevent crosstalk phenomenon.

Organic light emitting display devices and methods of manufacturing organic light emitting display devices

An organic light emitting device, and a manufacturing method of the same, in which in a light emitting layer, an electron trap material is introduced so as to improve a light emitting property and an operating characteristic and to prolong a life span.

Organic light emitting device with enhanced lifespan

Organic light-emitting device using a mixture of electron transporting compounds

An organic light-emitting diode including a buffer layer including an amine-based compound.

Organic light-emitting diode

A donor substrate having a plurality of recesses and isolation structures may be provided. The isolation structures may be defined by the recesses. A first electrode is formed on a first substrate. A pixel defining layer may be formed on the first electrode to define a plurality of pixel regions. The donor substrate may be arranged over the first substrate, and a laser induced thermal imaging process may be performed to form a plurality of light emitting layers in the pixel regions. A second electrode may be formed on the pixel defining layer and the light emitting layers. The organic light emitting layers having minute dimensions may be effectively obtained from the donor substrate. The isolation structures may be formed integrally with the substrate, and thus the donor substrate may be easily recycled after the laser induced thermal imaging process.

Donor substrates, methods of manufacturing donor substrates and methods of manufacturing organic light emitting display devices using donor substrates

A light emitting polymer includes a phosphorescence unit and a fluorescence unit. An organic light emitting device includes the light emitting polymer. The light emitting polymer can emit light of two or more colors according to a phosphorescent and fluorescent mechanisms, and thus the organic light emitting device including the light emitting polymer can have long lifetime, high brightness and excellent efficiency, and emit white light.

Light emitting polymer comprising phosphorescence unit and fluorescence unit and organic light emitting device comprising the light emitting polymer

A printing method and a printer for implementing the printing method are disclosed. When a printhead including a first end and a second end sequentially prints a first area and a second area which are adjacent to each other, the method comprises performing printing by means of the printer by relatively moving locations of the printhead and a print object in such a way that a surface printed by the second end in the first area and a surface printed by the second end in the second area face each other. The printhead rotates around a rotational axis comprising at least one point on the printhead, one end of the printhead, a center of the printhead, or both ends of the printhead.

Printing method and printer

Provided are an organic light-emitting compound that is a diarylethene derivative represented by Formula 1, and an organic electroluminescent (EL) device using the organic light-emitting compound, and a method of manufacturing the organic EL device: 

Organic light-emitting compound of CIS-diarylethene derivatives, organic electroluminescent device using the same, and method of manufacturing the device

Provided is a cyclometalated transition metal complex represented by Formula 1, Formula 2 or Formula 3: By including a new ancillary ligand, the cyclometalated transition metal complex can efficiently emit red light using a phosphor by intersystem crossing (ISC) of excitons to triplet states and then metal to ligand charge transfer (MLCT). An organic light emitting device prepared using the transition metal compound shows high luminous efficiency and high external quantum efficiency.

Cyclometalated transition metal complex and organic electroluminescence device using the same

The present invention provides an aromatic heterocyclic compound represented by Formula 1 below, an organic light-emitting diode including an organic layer comprising the aromatic heterocyclic compound, and a method of manufacturing the organic light-emitting diode: 

Aromatic hetrocyclic compound, organic light-emitting diode including organic layer comprising the aromatic hetrocyclic compound, and method of manufacturing the organic light-emitting diode

Provided are an electroluminescent polymer including repeating units of Formula (1) below and repeating units of Formula (2) below and an organic electroluminescent device including an organic layer having the electroluminescent polymer, wherein the organic electroluminescent device has high luminance, high efficiency, and high color purity: 

Electroluminescent polymer and organic electroluminescent device using the same

Provided are a blue electroluminescent (EL) polymer, a method of manufacturing the same, and an organic EL device including the polymer as a light emitting component, wherein an acridine derivative which can transport holes is introduced into a polymer backbone. The polymer is represented by Formula 1: The blue EL polymer has high color purity and color stability.

Blue electroluminescent polymer, method of preparing blue electroluminescent polymer, and organic electroluminescent device employing the same

Provided are an organic light-emitting compound of Formula 1 and an organic light-emitting device using the organic light-emitting compound: 

Organic light-emitting compound and organic light-emitting device containing the same

An organic light-emitting device including a first electrode, a second electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes at least one organosiloxane compound selected from organosiloxane compounds represented by An organic light-emitting device using the organosiloxane compound has a low operating voltage, high color purity, and high efficiency.

Organosiloxane compound and organic light-emitting device comprising the same

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Hwaseong-si, South Korea

Young-Mok Son