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Jun-Yeob
Jun-Yeob Lee, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090197497 | Small molecular organic electroluminescent display device and method of fabricating the same - An organic electroluminescent display (OELD) device and a method of fabricating the same are disclosed. The OELD device includes a substrate, a first electrode, an organic layer containing at least one light emitting layer, and a second electrode. The light emitting layer is comprised of at least one phosphorescent dopant and at least two host materials. | 08-06-2009 |
| 20090263924 | Organic Light-Emitting Display Device and Method of Manufacturing the Same - Provided is an organic light-emitting display device that can display a full color image by forming a simple structure of light-emitting layers and a method of manufacturing the same. The organic light-emitting display device includes a substrate; a first electrode layer formed on the substrate; a second electrode layer which is formed above the first electrode layer and faces the first electrode layer; and a light-emitting layer interposed between the first electrode layer and the second electrode layer, wherein the light-emitting layer comprises first and second light-emitting layers respectively corresponding to first and second pixels having different colors from each other, and the first light-emitting layer is commonly formed in the first and second pixels, and the second light-emitting layer is formed in the second pixel. | 10-22-2009 |
| 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 |
Jun-Yeob Lee, Seongnam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090195153 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE HAVING SUPERIOR CHARACTERISTICS AT HIGH TEMPERATURE - An organic electroluminescent display device improves driving characteristics at a high temperature and storage characteristics of the organic electroluminescent display device, and prevents pixel contraction phenomena of the device by providing an organic electroluminescent display device comprising a substrate, a first electrode and a second electrode formed on the substrate, and an organic film layer comprising at least one emitting layer between the first electrode and the second electrode. The emitting layer includes at least one phosphorescent dopant, and the dopant is represented by L3M or L2ML′, wherein the M is a transition metal selected from the group consisting of Ir, Pt, Zn and Os, the L and L′ are bidendate ligands coordinated with carbon and nitrogen, and at least one of the L and L′ has 15 or more carbon atoms in the ligand. | 08-06-2009 |
Jun-Yeob Lee, Daegu KR
| Patent application number | Description | Published |
|---|---|---|
| 20090135351 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes an array substrate including gate and data line on a first substrate to define first and second sub-pixel regions and a thin film transistor in each of the first and second sub-pixel regions; a color filter substrate including a color filter layer including first and second color filters corresponding to the first and second sub-pixel regions, respectively, a portion of the first color filter overlapping a portion of the second color filter over the data line; and a liquid crystal layer between the array substrate and the color filter substrate. | 05-28-2009 |
Jun-Yeob Lee, Koyang-City KR
| Patent application number | Description | Published |
|---|---|---|
| 20080316419 | PANEL FOR A LIQUID CRYSTAL DISPLAY AND METHOD OF FORMING THE SAME - A panel for a liquid crystal display including a substrate, and at least one spacer formed over the substrate. The at least one spacer has a tapered shape with an inclination angle in the range of about 20-about 70 degrees and a height in the range of about 2.5-about 5.0 microns. | 12-25-2008 |
Jun-Yeob Lee, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20120068168 | CARBAZOLE-BASED PHOSPHINE OXIDE COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME - The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided. | 03-22-2012 |