Samsung Display Co., Ltd.

Jin-Young Yun

Chang-Ho Lee

Se-Jin Cho

Hee-Joo Ko

Jong-Hyuk Lee

Il-Soo Oh

Hyung-Jun Song

Bo-Ra Lee

Young-Woo Song

Sung-Chul Kim

Yoon-Hyun Kwak

Dae-Yup Shin

Young-Mok Son

Sun-Young Lee

Kyu-Hwan Hwang

Seok-Gyu Yoon

Bum-Woo Park

Beom-Joon Kim

Won-Jong Kim

Yong-Tak Kim

Joon-Gu Lee

Jin-Baek Choi

Chang-Min Lee

So-Yeon Kim

Ji-Youn Lee

Jong-Won Choi

Wha-Il Choi

Yeon-woo Lee

Hyun-Ju Choi

II-Soo Oh

Pyung-Eun Jeon

Seok-Hwan Hwang

Young-Kook Kim

Jae-Heung Ha

Ji-Young Choung

Yeon-Hwa Lee

Il Soo Oh

Yeon-Woo Lee

Hee-Ju Ko

Hee-Jo Ko

Si-Jin Cho

Won-Jung Kim

Jung-Geun Lee

ll-Soo Oh

See-Jin Cho

Kim Beom-Joon

Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.

Heterocyclic compounds and organic light-emitting devices including the same

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 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 element includes a first electrode, a second electrode, and an organic layer. The organic layer includes a first emission layer between the first electrode and the second electrode, a second emission layer between the first emission layer and the second electrode, and an electron injection layer (EIL) between the first emission layer and the second emission layer, the electron injection layer (EIL) containing fullerene (C60).

Organic light emitting element having emission layers and an electron injection layer including fullerene and lithium quinolate

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

Organic light-emitting diode

A dual mode organic light emitting device and a pixel circuit including the same are disclosed. The dual mode organic light emitting device includes a cathode formed over a substrate, an electron transport layer (ETL) formed over the cathode, an emission layer formed over the electron transport layer (ETL), and an anode formed over the emission layer, wherein the cathode includes a first metal selected from silver (Ag), aluminum (Al), copper (Cu), and gold (Au) and a second metal having a work function of about 4.0 eV or less, and the first metal and the second metal are present at a weight ratio of about 1:1 to about 1:100.

Dual mode organic light emitting device and pixel circuit including the same

A heterocyclic compound represented by one of Formulae 1-4 below and an organic light-emitting device including an organic layer that includes the heterocyclic compound. The heterocyclic compounds have excellent light-emitting characteristics and excellent electron transporting characteristics, and thus may be used as electron injecting materials or electron transporting materials suitable for all-color fluorescent and phosphorescent devices, such as red, green, blue, and white fluorescent and phosphorescent devices. In particular, the heterocyclic compounds are efficiently used as light-emitting materials of green, blue, and while fluorescent devices. By using the heterocyclic compounds, organic light-emitting devices having high efficiency, low driving voltage, high brightness, and long lifespan may be prepared.

Heterocyclic compound and organic light-emitting device containing the same

An anode for an organic light emitting device which introduces a metal oxide to improve flows of charges, and an organic light emitting device using the anode. The anode for the organic light emitting device has excellent charge injection characteristics, thereby improving power consumption of the organic light emitting device.

Anode containing metal oxide and organic light emitting device having the same

An organic light emitting diode display is disclosed. The display includes some pixel areas which are opaque and some pixel areas which are partially opaque and partially transparent. Selectively displaying the light emission of the pixel areas allows for control of the relative brightness of a displayed image and an object behind the display.

Organic light emitting diode display

An organic light-emitting device, including a first electrode, the first electrode having a smaller absolute value of a work function energy level than an absolute value of a work function energy level of ITO, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode.

An organic light emitting diode (OLED) display including a substrate main body; a thin film transistor on the substrate main body; and an organic light emitting diode including a transparent electrode connected with the thin film transistor and being capable of injecting electrons, an organic emission layer on the transparent electrode, and a reflective electrode on the organic emission layer and being capable of injecting holes, wherein the organic emission layer includes an electron injection unit on the transparent electrode, the electron injection unit including an electron injection metal layer, an electron injection layer, and an electron injection dipole layer, and a light emitting unit on the electron injection unit.

An organic light-emitting device including a substrate, an anode layer on the substrate, the anode layer including WON(2.2&#x2266;x&#x2266;2.6 and 0.22&#x2266;y&#x2266;0.26), an emission structure layer on the anode layer, and a cathode layer on the emission structure layer.

Organic light-emitting device and method of manufacturing the same

A condensation compound is represented by Formula 1, 2, or 3 where Rto Rand A to F are further defined in the detailed description. 

Condensation compound and organic light emitting device including the same

Disclosed is an organic light emitting diode device including an anode, a cathode, an emission layer between the anode and the cathode, and a buffer layer positioned between the emission layer and the anode. The buffer layer includes an oxide, fluoride, quinolate, or acetoacetate compound of an alkaline metal or an alkaline-earth metal, as well as a material having a work function of about 2.6 to about 4.5 eV. The buffer layer also has a thickness of about 30 &#x212b; to about 400 &#x212b;.

Organic light emitting device having a bulk layer comprising a first and second material

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Yongin, South Korea

Jin-Young Yun