Patent application number | Description | Published |
20080218069 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting display device and a method of fabricating the same capable of improving driving voltage and luminous efficiency. The OLED includes a substrate; a first electrode disposed on the substrate; an organic layer disposed on the first electrode and including an organic emission layer; and a second electrode disposed on the organic layer, and including a first metal layer and a second metal layer. | 09-11-2008 |
20080284324 | ORGANIC LIGHT EMITTING DEVICE - Organic light emitting devices (OLEDs) are provided. An exemplary OLED includes a substrate, a first electrode, a second electrode, and an organic layer between the first and second electrodes having a hole injection layer and an emissive layer. The emissive layer includes red, green and blue emissive layers. The organic layer further includes an auxiliary layer selected from a first auxiliary layer between the hole injection layer and the red emissive layer for adjusting the resonance cycle of red light, a second auxiliary layer between the hole injection layer and the green emissive layer for adjusting the resonance cycle of green light, and combinations thereof. The material of the auxiliary layer is different from the material of the hole injection layer. The organic light emitting device has low turn-on voltage, high current density, high luminance, high current efficiency, high power, long life-time, and excellent color purity. | 11-20-2008 |
20080299365 | ORGANIC LIGHT EMITTING DEVICE AND METHOD OF PREPARING THE SAME - Organic light emitting devices including an electron transport-emission layer, and methods of preparing the same are included. The electron transport-emission layer may be an electron transport-red emission layer, an electron transport-green emission layer or an electron transport-blue emission layer. The methods produce high yields of the organic light emitting devices and are less expensive than conventional methods. | 12-04-2008 |
20090189521 | ORGANIC LIGHT EMITTING DIODE AND METHOD OF MANUFACTURING THE SAME - The invention is directed to organic light emitting diodes (OLEDs) and methods of manufacturing the same. According to embodiments of the invention, an improved electron transport layer (ETL) reduces the driving voltage and current consumption of the OLED, and increase luminous efficiency and lifespan. The OLED includes a first electrode, an organic layer on the first electrode and including an emission layer (EML) and an ETL, and a second electrode on the organic layer. | 07-30-2009 |
20090206740 | ORGANIC LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME - An organic light emitting diode includes a first electrode, an organic layer disposed on the first electrode and including an emission layer and an electron transport layer, and a second electrode disposed on the organic layer. The electron transport layer includes an organic metal complex including beryllium and one of compounds of formula 1: | 08-20-2009 |
20090232976 | EVAPORATING METHOD FOR FORMING THIN FILM - A method of forming a plurality of multi-layer organic films in a single process includes preparing a first evaporating source that evaporates a first evaporating source material onto a first deposition region and a second evaporating source that evaporates a second evaporating source material onto a second deposition region, wherein the first evaporating source material and the second evaporating source material are different from each other, adjusting the first evaporating source and the second evaporating source in order to obtain a first overlapping region in which the first deposition region and the second deposition region overlap each other, driving the first evaporating source and the second evaporating source to deposit the first evaporating source material and the second evaporating source material onto a portion of an object to be processed, and moving the first evaporating source and the second evaporating source from a first end of the object to a second end of the object to form a multilayer film comprising a first layer that is a deposition of only the first evaporating source material, a second layer that is a deposition of a mixture of the first evaporating source material and the second evaporating source material and a third layer that is a deposition of only the second source material. | 09-17-2009 |
20090233125 | ORGANIC LIGHT-EMITTING DEVICE INCLUDING ORGANIC LAYER INCLUDING ANTHRACENE DERIVATIVE COMPOUND - An organic light-emitting device includes a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode, the organic layer including one or more anthracene derivative compounds represented by Formula 1 below and optionally an ionic metal complex: | 09-17-2009 |
20100012926 | Organic electroluminescent device - An organic EL device is constructed with a first electrode, a light-emitting layer, a second electrode, and an organic layer which includes a biphenylenediamine compound and is interposed between the first electrode and the light-emitting layer. The organic layer formed between the first electrode and the light-emitting layer has both hole transport and hole injection properties. With this structure, the organic EL device has improved lifetime characteristics in spite of absence of a hole injection layer. A buffer layer including an organic compound with p-type semiconductive property may be further formed between the first electrode and the organic layer including the 4,4′-biphenylenediamine compound to facilitate hole injection from the first electrode and transport an injected hole to the light-emitting layer. Therefore, the organic EL device can have a lower driving voltage, thereby improving a device lifetime. | 01-21-2010 |