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 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 device of fabricating a donor substrate for a LITI includes a vacuum chamber; a donor substrate which moves in line and passes through an inside of the vacuum chamber; and a depositing device arranged in the vacuum chamber and forming a transfer layer on the donor substrate.

Abstract: A laser induced thermal imaging apparatus for fabricating an organic light emitting display is provided. The laser induced thermal imaging apparatus includes a stage where a substrate is positioned; a transport device for transporting a donor substrate; a laminator for laminating the substrate to the donor substrate; a laser optical unit for performing the LITI, and a chamber supplied with an atmospheric pressure of an inert gas in which the stage, the laminator, and the laser optical unit are positioned.

Abstract: A donor substrate for a laser induced thermal imaging method and method of fabricating an organic light emitting display device using the same are provided. A transfer layer for a laser induced thermal imaging method is made of an organic material having a molecular weight of 500 to 70,000 to fabricate an organic light emitting display device having a uniform organic layer pattern. The invention also provides a method of fabricating an organic light emitting display device which may achieve a large-sized pixel region as well as improve the productivity of the organic light emitting display device.

Abstract: A method of fabricating an organic light emitting display is provided. The method includes: preparing a base substrate for a donor substrate; cleaning the base substrate; forming a transfer layer on the cleaned base substrate; and patterning the transfer layer by making the donor substrate opposite to a substrate on which a pixel electrode is formed.

Abstract: Methods of fabricating an OLED and a donor substrate are provided. The method includes: preparing a base substrate of a donor substrate; forming a light to heat conversion layer and a transfer layer on the base substrate; preparing a donor substrate including performing a dry cleaning process after forming the transfer layer; preparing a substrate, on which the transfer layer of the donor substrate is to be transferred; laminating the donor substrate and the substrate; and patterning the transfer layer by irradiating a laser to transfer the transfer layer on the substrate.

Abstract: A laser inducted thermal imaging method includes preparing a donor element and a substrate; facing a transfer layer of the donor element to the substrate and then patterning the transfer layer onto the substrate; and annealing the patterned substrate.

Abstract: A donor substrate for a laser induced thermal imaging method and an organic light emitting display (OLED) fabricated using the donor substrate are provided. There is also provided a method of fabricating an OLED capable of controlling static electricity when an organic layer is formed using an laser induced thermal imaging method, since the donor substrate having a conductive layer is electrically connected to an earthed stage.

Abstract: Provided are a donor substrate for laser induced thermal imaging (LITI) and method of fabricating an organic light emitting display (OLED) using the same donor substrate. A conductive frame is disposed on an outer portion of the donor substrate and connected to an anti-static layer. The conductive frame of the donor substrate is connected to a grounded stage. In this structure, while an organic layer is formed using an LITI process, the generation of static electricity may be controlled.

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: An organic EL device which includes a first electrode, a hole transport layer, a light-emitting layer, and the second electrode, wherein the light-emitting layer includes a mixed light-emitting film of a host substance, which is capable of transferring an energy to another light-emitting polymer by absorbing the energy, and a phosphorescent dopant which is capable of emitting light using a triplet state after absorbing the energy received. Accordingly, the light-emitting layer can be patterned, and a color purity and light-emitting characteristics of a full color organic polymer EL device, produced through a laser induced thermal imaging operating, can be improved.

Abstract: A white-light-emitting organic electroluminescent device and organic electroluminescent display having the same may include a first electrode, a second electrode, and an emission layer interposed between the first electrode and the second electrode. The emission layer may have a structure in which a polymer emission layer and a small-molecule emission layer are stacked.

Abstract: A method of fabricating an organic light emitting display is capable of improving device characteristics by patterning a plurality of organic layers of an emission layer and a charge transport layer using a thermal transfer method to optimize thicknesses of the organic layers corresponding to R, G and B pixels. The method includes: forming lower electrodes of R, G and B pixels on a substrate; forming an organic layer on the layer; and forming an upper electrode on the organic layer. Formation of the organic layer includes forming a portion of a hole injection layer and a hole transport layer of the R, G and B pixels over an entire surface of the substrate, the organic layer comprising a first portion and a second portion, the organic layer having a thickness equal to a sum of the thicknesses of the hole injection layer and the hole transport layer. Formation of the organic layer further comprises patterning the second portion of the organic layer, and patterning emission layers of the R, G and B pixels.

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: 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: A white light emitting organic electroluminescent device and organic electroluminescent display having the same are provided. The organic electroluminescent device includes a first electrode, a second electrode, and an emission layer interposed between the first and second electrodes and having a fluorescence layer and a phosphorescence layer. Thereby, it is possible to obtain the white light emitting organic electroluminescent device having luminance yield improved.

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: 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: The present invention discloses an organic light emitting device for preventing element defects and improving picture quality by reducing a taper angle of a substrate surface. The flat panel display of the present invention comprises, an insulating substrate, a lower layer formed on the insulating substrate and having a first step and a first taper angle with respect to the substrate surface, and an upper layer formed on the insulating substrate and for reducing the taper angle of the lower layer. The upper layer has a second taper angle smaller than the first taper angle of the lower layer.