Patent application number | Description | Published |
20080309230 | Full color organic electroluminescence display devices by thermal patterning using laser and method for manufacturing the same - An organic electroluminescence display device made by a laser induced thermal imaging process has a substrate having first and second electrode layers, and an organic layer having red, green, and blue light-emitting layers between the electrode layers. Thermosetting light-emitting materials are used to form the red, green, and blue light-emitting layers, and a laser is then selectively irradiated onto a light-to-heat conversion layer formed on the substrate to deliver heat energy converted from light energy through the light-to-heat conversion layer to the thermosetting light-emitting materials so that curing is progressed to form patterned light-emitting layers. In accordance with the fabrication method of the present invention, the light-emitting materials may be patterned using a laser, thereby fabricating a large scaled organic electroluminescence display device and simplifying the process by not using a mask when the light-emitting layers are formed. | 12-18-2008 |
20090072229 | THIN FILM TRANSISTOR, METHOD OF FABRICATING THE THIN FILM TRANSISTOR, ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE, METHOD OF FABRICATING THE ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE, AND DONOR SUBSTRATE FOR LASER INDUCED THERMAL IMAGING - A thin film transistor (TFT), a method of fabricating the TFT, an organic light emitting diode (OLED) display device, a method of fabricating the OLED display device, and a donor substrate for laser induced thermal imaging (LITI) includes interconnections formed of a mixed layer of metal nanoparticles and carbon black using a laser induced thermal imaging (LITI) technique. | 03-19-2009 |
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 |
20090147177 | MULTI-VISION DISPLAY - A multi-vision display including first and second display panels having edges that at least partially overlap, the first and second display panels each including pixel regions, non-pixel regions disposed around the pixel regions, and driving circuits mounted on the non-pixel regions, to supply driving signals to the pixel regions. The driving circuits are located on edges of the first and second display panels that face the overlapped edges. | 06-11-2009 |
20090170291 | Method of fabricating an organic thin film transistor - An organic thin film transistor that prevents the surface of an organic semiconductor layer from being damaged and reduces turn-off current, a method of fabricating the same, and an organic light-emitting device incorporating the organic thin film transistor. The organic thin film transistor includes a substrate, source and drain electrodes arranged on the substrate, a semiconductor layer contacting the source and drain electrodes and comprising a channel region, a protective film arranged on the semiconductor layer and having a same pattern as the semiconductor layer, the protective film comprising a laser-absorbing material, a gate insulating film arranged between the gate and the source and drain electrodes, a gate electrode arranged on the gate insulating film and a separation pattern arranged within the semiconductor layer and within the protective film, the separation pattern adapted to define the channel region of the semiconductor layer. | 07-02-2009 |
20090236977 | ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting diode (OLED) display device and a method of fabricating the same. The OLED display device includes a substrate, a thin film transistor on the substrate and including a semiconductor layer, a gate electrode, a gate insulating layer, a source electrode and a drain electrode. A passivation layer is on an entire surface of the substrate including the thin film transistor. A planarization layer is on the passivation layer. A first electrode is on the planarization layer and electrically coupled to any one of the source electrode or the drain electrode. A metal mixture layer is on substantially the entire surface of the substrate and includes a conductive region and a non-conductive region. An organic emitting layer and a second electrode both are on the metal mixture layer. | 09-24-2009 |
20090267493 | Sign Board - Provided is a high-quality sign board including an organic light emitting device (OLED) which can be easily adapted to various designs applied by users to the sign board. The sign board includes a substrate, a plurality of first conductive lines disposed on the substrate, a plurality of pixel electrodes electrically connected with the first conductive lines, an intermediate layer comprising a light emitting layer disposed on the pixel electrodes, and a face electrode disposed on the intermediate layer. In another embodiment, the sign board further includes a plurality of second conductive lines, each of which connects at least two of the first conductive lines to each other. In still another embodiment, the plurality of pixel electrodes includes a plurality of first pixel electrodes electrically connected with the first conductive lines, and a plurality of second pixel electrodes that are not electrically connected with the first conductive lines. | 10-29-2009 |
20090302747 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing an organic light emitting display device in which a laser beam is used. The method includes forming an organic light emitting unit on a substrate; forming a sealing unit that seals the organic light emitting unit; forming an protective film which is opaque on the sealing unit to protect the organic light emitting unit or the sealing unit by blocking the transmission of the laser beam; forming an optical pattern on the opaque protective film using the laser beam; and forming a transparent film from the opaque protective film by oxidizing the opaque protective film. | 12-10-2009 |
20100029028 | METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DEVICE - A method of manufacturing an organic light emitting device by which a pixel defining layer can be easily formed. The method includes: forming a first electrode on a substrate; forming a photoresist layer to cover the first electrode; patterning the photoresist layer and forming a blocking layer so that the blocking layer is on a side of the first electrode opposite to a side facing the substrate; forming a pixel defining layer on the substrate to cover side ends of the first electrode; removing the blocking layer and exposing the side of the first electrode contacting the blocking layer; forming an intermediate layer including an organic light emitting layer on the side of the first electrode that is exposed by removing the blocking layer; and forming a second electrode on the intermediate layer. | 02-04-2010 |
20100151622 | ORGANIC THIN FILM TRANSISTOR, FLAT PANEL DISPLAY APPARATUS COMPRISING THE SAME, AND METHOD OF MANUFACTURING THE ORGANIC THIN FILM TRANSISTOR - An organic thin film transistor that can reduce contact resistance between source and drain electrodes and an organic semiconductor layer and can be readily manufactured, a flat panel display apparatus utilizing the organic thin film transistor, and a method of manufacturing the organic thin film transistor. The organic thin film transistor includes: a substrate; a source electrode and a drain electrode disposed on the gate insulating film; a conductive polymer layer disposed to cover at least a portion of each of source and drain electrodes; a hydrophobic material layer disposed on the substrate and the source and drain electrodes except regions where the conductive polymer layer are formed; an organic semiconductor layer electrically connected to the source and drain electrodes; a gate insulating film disposed to cover the organic semiconductor layer; and a gate electrode disposed on the gate insulating film. | 06-17-2010 |
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 |
20100308317 | THIN FILM TRANSISTOR, METHOD OF MANUFACTURING THE SAME AND FLAT PANEL DISPLAY HAVING THE THIN FILM TRANSISTOR - A thin film transistor includes: a gate electrode; source and drain electrodes insulated from the gate electrode; an organic semiconductor layer that is insulated from the gate electrode and electrically connected to the source and drain electrodes; an insulating layer that insulates the gate electrode from the source and drain electrodes or the organic semiconductor layer; a hydrophobic layer which covers the source and drain electrodes or insulating layer and has an opening that defines a region corresponding to the organic semiconductor layer; and a hydrophilic layer formed in the opening of the hydrophobic layer, wherein the organic semiconductor layer is formed on the hydrophilic layer. The thin film transistor includes the organic semiconductor layer having a highly precise pattern that is formed without an additional patterning process. | 12-09-2010 |