| Patent application number | Description | Published |
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| 20080220683 | Luminance improved organic electroluminescent device - An organic light emitting diode (OLED) is capable of improving light efficiency per pixel unit by forming a cathode electrode to cover an anode electrode, thereby focusing light emitted from a luminescent layer per pixel unit. The OLED comprises: a second insulating film formed on a substrate including a TFT with source/drain electrodes formed on a first insulating film; a lower electrode formed on the second insulating film and connected to one of the source/drain electrodes; a third insulating film having an opening for exposing a portion of the lower electrode; a luminescent layer formed on the lower electrode inside the opening; a groove formed to surround the luminescent layer; and an upper electrode formed on the substrate including the groove so that the upper electrode surrounds the luminescent layer. The upper electrode functions as a reflection layer for reflecting total light while light emitted from the luminescent layer is being pulled out through the substrate. | 09-11-2008 |
| 20100072478 | Flat panel display - A flat panel display that can prevent a voltage drop of a driving power and, at the same time, minimizes the characteristic reduction of electronic devices located in a circuit region where various circuit devices are located includes: a substrate; an insulating film arranged on the substrate; a pixel region including at least one light emitting diode, the pixel region arranged on the insulating film and adapted to display an image; a circuit region arranged on the insulating film and including electronic devices adapted to control signals supplied to the pixel region; and a conductive film interposed between the substrate and the insulating film in a region corresponding to the pixel region and electrically connected to one electrode of the light emitting diode. | 03-25-2010 |
| 20100099215 | THIN FILM TRANSISTOR, FLAT PANEL DISPLAY INCLUDING THE THIN FILM TRANSISTOR, AND METHOD FOR MANUFACTURING THE THIN FILM TRANSISTOR AND THE FLAT PANEL DISPLAY - A thin film transistor having a transformed region that provides the same result as patterning a semiconductor layer, a flat panel display having the thin film transistor and a method for manufacturing the thin film transistor and the flat panel display are disclosed. The thin film structure includes a gate electrode, a source and a drain electrode, each insulated from the gate electrode and an organic semiconductor layer coupled to the source electrode and the drain electrode. The organic semiconductor layer includes the transformed region having a crystal structure distinguished from crystal structures of regions around the channel region. | 04-22-2010 |
| 20100291716 | ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF MANUFACTURING THE SAME - An EL device with low manufacturing costs and improved yield due to simplified structure and use of an organic light emitting transistor and a method of manufacturing the same are disclosed. The EL device includes: a first organic light emitting transistor including a first source electrode; a first drain electrode opposing the first source electrode; a first intermediate layer including at least an emission layer formed between the first source electrode and the first drain electrode; and a first gate electrode which is insulated from the first source electrode, the first drain electrode, and the first intermediate layer and surrounds the first intermediate layer; and a second organic light emitting transistor including a second source electrode; a second drain electrode opposing the second source electrode; a second intermediate layer including at least an emission layer formed between the second source electrode and the second drain electrode; and a second gate electrode which is insulated from the second source electrode, the second drain electrode, and the second intermediate layer, surrounds the second intermediate layer, and is connected to the first drain electrode. | 11-18-2010 |
| Patent application number | Description | Published |
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| 20090140254 | THIN FILM TRANSISTOR AND FLAT PANEL DISPLAY DEVICE INCLUDING THE SAME - A flat panel display device is disclosed. In one embodiment, the flat panel display device includes i) a semiconductor layer including a channel region and a groove, wherein the channel region electrically connects a source electrode and a drain electrode, and the groove is configured to separate the channel region from adjacent thin film transistors and ii) a stop layer formed below at least a portion of the semiconductor layer. According to one embodiment of the invention, a semiconductor layer can be easily patterned without using a dry or wet etching technique such as photolithography. | 06-04-2009 |
| 20090272969 | METHOD OF PATTERNING AN ORGANIC THIN FILM, AN ORGANIC THIN FILM TRANSISTOR, A METHOD OF MANUFACTURING AN ORGANIC THIN FILM TRANSISTOR, AND AN ORGANIC ELECTROLUMINESCENE DISPLAY DEVICE HAVING THE ORGANIC THIN FILM TRANSISTOR - Provided is a method of patterning an organic thin film which can prevent surface damage of an organic semiconductor layer. Also, an organic thin film transistor that can reduce an off-current and can prevent surface damage of the organic semiconductor layer and a method of manufacturing the organic thin film transistor, and an organic electroluminescence display device having the organic thin film transistor are provided. The method of patterning the organic thin film includes forming the organic thin film on a substrate, selectively printing a mask material on a portion of the organic thin film, dry etching an exposed portion of the organic thin film using the mask material, and removing the mask material. | 11-05-2009 |
| 20100197085 | Method of manufacturing an organic thin film transistor - An organic thin film transistor that has good adhesiveness and good contact resistance as well as allows ohmic contact between an organic semiconductor layer and a source electrode and a drain electrode, and its manufacturing method. There is also provided a flat panel display device using the organic thin film transistor. The organic thin film transistor includes a source electrode, a drain electrode, an organic semiconductor layer, a gate insulating layer, and a gate electrode formed on a substrate, and a carrier relay layer including conductive polymer material formed at least between the organic semiconductor layer and the source electrode or the organic semiconductor layer and the drain electrode. | 08-05-2010 |
