Abstract: An organic light-emitting device including an anode, a cathode, an emission layer interposed between the anode and the cathode, and at least one of the hole injecting layer and the hole transporting layer interposed between the anode and the emission layer, wherein the at least one of the hole injecting layer and the hole transporting layer includes a host material, and a dopant material as an electron acceptor, wherein the dopant material has an electron affinity greater than that of the host material by at least 0.1 eV.

Abstract: The present invention relates to a full color organic electroluminescent device and a method for fabricating the same and provides a full color organic electroluminescent device. The invention reduces misalignment errors caused by fine patterning of the emitting layer by reducing the steps of the fine patterning process. In particular, the blue emitting layer functions as a hole inhibition layer which results in superior color purity and improved stability for the color organic electroluminescent device. The use of such a blue emitting layer also reduces the manufacturing steps. The device comprises a substrate; a first electrode pattern formed on the substrate; a red emitting layer formed by patterning a red emitting material on a red pixel region of the first electrode pattern and a green emitting layer formed by patterning a green emitting material on a green pixel region of the first electrode pattern.

Abstract: A full color organic electroluminescent device and a method for fabricating the same reduces misalignment errors caused by fine patterning of the emitting layer by reducing the steps of the fine patterning process. In particular, the blue emitting layer functions as a hole inhibition layer which results in superior color purity and improved stability for the color organic electroluminescent device. The use of such a blue emitting layer also reduces the manufacturing steps. The device comprises a substrate; a first electrode pattern formed on the substrate; a red emitting layer formed by patterning a red emitting material on a red pixel region of the first electrode pattern and a green emitting layer formed by patterning a green emitting material on a green pixel region of the first electrode pattern. A blue emitting layer is applied over the entire substrate, over the upper parts of the red and green emitting layers and a second electrode is formed on an upper part of the blue emitting layer.

Abstract: A lamination apparatus and a laser-induced thermal imaging method using the same are provided. The lamination apparatus comprising: a chuck for fixing first and second substrates; and having at least one vacuum hole located therein and exposed outside of the first substrate therein.

Abstract: A donor substrate for laser transfer comprises: a base film; a light-to-heat conversion layer formed on the base film; and a transfer layer formed of an organic material on the light-to-heat conversion layer. The transfer layer contains a thermosetting electroluminescent material, and an organic electroluminescence display device is manufactured using the same. Thus, R, G and B emission layers are simply formed with a fine pattern by a thermal curing process after laser transfer. As a result, the emission layers are not damaged, and the manufacturing cost of a full-color organic electroluminescence display device is reduced due to employment of a simplified mask process. The donor substrate is advantageous to use in the manufacture of a large-sized organic electroluminescence display device.

Abstract: A donor substrate for use in an organic light emitting display comprises a base substrate and a transfer layer disposed on the base substrate. A selective heat generation structure is interposed between the base substrate and the transfer layer. The selective heat generation structure has a heat generation region from which heat is generated by light-to-heat conversion and a heat non-generation region contacting the heat generation region. By employing the donor substrate, it is possible to form minute transfer layer patterns with high accuracy without the need to accurately control the width of a laser beam. A fabrication method of an organic light emitting display comprises disposing the donor substrate on an acceptor substrate, irradiating a laser beam onto the donor substrate, and forming a transfer layer pattern on a pixel electrode of the acceptor substrate.

Abstract: A supercapacitor having a metal oxide electrode and a method for preparing the same. The method comprises preparing a substrate composed of a current collector and a titanium dioxide ultrafine fiber matrix layer formed on the current collector, and electrochemically depositing a metal oxide thin film layer onto the substrate by a constant current potentiometry or a cyclic voltammetric method. Since the metal oxide is uniformly deposited on the substrate having a wide specific surface area with the titanium dioxide ultrafine fiber, a bonding material or a conductive particle need not to be added to the capacitor electrode. Therefore, a resistance of the capacitor electrode is prevented from being increased, and thus a capacitance of the capacitor electrode is prevented from being decreased.

Abstract: The present invention is directed to a full color organic electroluminescent device which comprises a substrate; a first electrode formed on the substrate; an organic emitting layer formed on the first electrode, and having a red-emitting layer, a green-emitting layer and a blue-emitting layer, respectively patterned in a red pixel region, a green pixel region and a blue pixel region, and having the red and green-emitting layer consisting of a phosphorescent material and the blue-emitting layer consisting of a fluorescent material; a hole blocking layer formed on the organic emitting layer as a common layer; and a second electrode formed on the hole blocking layer, so that the full color organic electroluminescent device having enhanced lifetime and luminous efficiency characteristics can be provided.

Abstract: A method of fabricating a donor substrate for a laser induced thermal imaging (LITI) process. A base substrate is prepared. A light-to-heat conversion layer is formed on the base substrate. A buffer layer is formed on the light-to-heat conversion layer. The surface roughness of the buffer layer is increased by treating the surface of the buffer layer. A transfer layer is formed on the surface-treated buffer layer. By using the donor substrate, a patterning process can be performed better during the fabrication of the OLED.

Abstract: Provided are organic metal compounds in which compounds for host and compounds for dopant are connected, organic electroluminescence display devices using the compounds and a method for preparation of the devices. Also provided are organic metal compounds in which compounds for host and compounds for dopant where connected to make energy transmission between host and dopant possible at a molecular level, an organic electroluminescence display device using the same and a preparation method thereof.

Abstract: A donor substrate for laser induced thermal imaging (LITI) and a method of fabricating an organic light emitting display (OLED) using the donor substrate are provided. A conductive frame is disposed on and connected to an anti-static layer of the donor substrate and frames the periphery of the donor substrate. The conductive frame is connected to a grounded stage. An organic layer is formed using LITI, and the generation of static electricity is controlled.

Abstract: The present invention relates to a flat panel display, and more particularly, to a method of fabricating an organic light emitting display device so as to improve device characteristics by patterning a plurality of organic layers using a heat transfer method to optimize thicknesses according to R, G and B pixels. The method includes: forming lower electrodes of R, G and B pixels on an insulating substrate; forming an organic layer on the insulating substrate; and forming an upper electrode on the organic layer. Formation of the organic layer includes forming a hole injection layer and a hole transport layer of the R, G and B pixels on the entire surface of the substrate as a common layer. The R and G emission layers are patterned by a heat transfer method using a heat transfer device having a transfer layer such that an organic layer is patterned to a thickness obtained by subtracting a thickness of the B emission layer from the thicknesses of the R and G emission layers required in R and G colors.

Abstract: The present invention relates to a method of fabricating an organic photovoltaic device with improved power conversion efficiency by reducing lateral contribution of series resistance between subcells through active area partitioning by introducing a patterned structure of insulating partitioning walls inside the device. According to the method of the present invention, since the lateral contribution of series resistance between the partitioned subcells is minimized and each subcell works independently, there is no interference phenomenon against the current output of each subcells. As such, the function of a charge extraction layer with high conductivity can be maximized. Thus, the method of the present invention can be effectively used in the fabrication and development of a next-generation large area organic thin layer photovoltaic cell device.

Abstract: A method of fabricating an OLED is provided. The method includes providing a substrate, in which a pixel electrode is formed. In addition, the method includes laminating a donor substrate attached to a frame on an entire surface of the substrate, and irradiating a laser to a predetermined region of the donor substrate to form an organic layer pattern on the pixel electrode. The present invention provides a method of fabricating the OLED capable of suppressing generation of contaminants such as particles and so on, and preventing the donor substrate from sagging or bending, as well as improving transfer efficiency since the donor substrate and the substrate are readily adhered to each other to maintain vacuum state.

Abstract: A donor substrate for a laser induced thermal imaging method and an organic electroluminescent display device fabricated using the same are provided. The donor substrate may be constructed with base film; a light-to-heat conversion layer formed on the base film; a buffer layer formed on the entire surface of the light-to-heat conversion layer; a metal layer formed on the buffer layer; and a transfer layer formed of an organic material and formed on the metal layer, thereby enhancing the characteristics of a transfer pattern by transferring a small molecular material using the laser induced thermal imaging method.

Abstract: A thermal transfer element is capable of improving transfer characteristics because transfer is performed at a low temperature. The thermal transfer element includes: a base substrate as a support substrate; a light-to-heat conversion layer formed on the base substrate to convert incident light to thermal energy; a transfer layer formed on the light-to-heat conversion layer to form an image; and a release layer formed between the base substrate and the light-to-heat conversion layer to facilitate delamination of the light-to-heat conversion layer from the base substrate. The release layer includes a silicon polymer having a glass transition temperature (Tg) of 25° C. or less, and low surface energy. In a further embodiment, the thermal transfer element includes an interlayer formed between the light-to-heat conversion layer and the transfer layer to protect the light-to-heat conversion layer.

Abstract: 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.

Abstract: 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.

Abstract: An organic light emitting display having red, green, blue, cyan, magenta, and yellow color modulation layers. The organic light emitting display includes a substrate, a first electrode arranged on the substrate, a second electrode arranged on the first electrode, an organic functional layer arranged between the first electrode and the second electrode, the organic functional layer comprises at least an emission layer, and red, green, blue, cyan, magenta, and yellow color modulation layers separated from each other, wherein one of the first electrode and the second electrode is transparent and is arranged between each color modulation layer and the emission layer. Accordingly, it is possible to maintain white balance even for an aged display while having enhanced color reproducibility.

Abstract: The present invention relates to an organic electroluminescent display device comprising a UV stabilizer and provides an organic electroluminescent display device whose characteristics are not degraded by ultraviolet rays even after being exposed to sunlight by providing an organic electroluminescent display device comprising a substrate, a first electrode formed on the substrate, a light emitting layer formed on the first electrode, and a second electrode formed on the upper part of the light emitting layer, wherein the light emitting layer is doped with a UV stabilizer, and the UV stabilizer has an absorption range of 420 nm or less.