Abstract: The present invention relates to a reverse offset printing method, and more particularly, to a reverse offset printing method in a partial off type capable of accurately transferring a pattern to a cliche to achieve more precise minute printing by separately performing removal for each shear region of a functional ink even though the pattern is minute.

Abstract: Provided is a method for forming a micropattern using a mask template. The method includes: forming a mask template on a substrate, wherein the mask template has an exposure section through which a portion of the substrate is exposed to the exterior and a non-exposure section provided by a polymer material applied on the remaining portion of the substrate; supplying conductive ink to the top of the mask template to deposit the conductive ink on the non-exposure section and on the substrate exposed through the exposure section; and heat treating the conductive ink in order to extract the conductive ink nanoclusters dissolved or dispersed in the conductive ink, wherein the conductive ink nanoclusters disposed on the non-exposure section are bound to the non-exposure section to form an insulating pattern having electrical insulating property, while the conductive ink nanoclusters disposed on the substrate form a conductive pattern having electroconductive property.

Abstract: A printing apparatus having an automatic printing sheet feeder integrated thereto to improve mass productivity. The printing apparatus includes a base, a moving stage, an automatic printing sheet feeder, and a printing roll. The moving stage is linearly movable along the base, and has a lithographic plate seated on the top surface thereof, the lithographic plate having a printing pattern thereon. The automatic printing sheet feeder is installed on the moving stage. The automatic printing sheet feeder includes an unwinding roll, which supplies the printing sheet, a rewinding roll, which collects the printing sheet, and a plurality of guide rolls, which guide the printing sheet to pass through the printing area of the moving stage. The printing roll is installed on the base, and performs printing by transferring ink from recesses of a printing pattern of the lithographic plate to the printing sheet on the moving stage.

Abstract: The present invention relates to a method for burying a conductive mesh in a transparent electrode, and more particularly, to a method which prevents a conductive mesh from protruding from a transparent electrode by burying the conductive mesh in the transparent electrode.

Abstract: Disclosed are a reverse gravure offset printing method and apparatus using a disposable cliche, which do not require cleaning of the cliche and do not require a large quantity of high-definition cliches because the cliche used in reverse gravure offset printing can be discarded after used once or several times and replaced with a new one, thereby achieving cost reduction.

Abstract: Disclosed is a method for fabricating fine conductive patterns using a surface modified mask template, the method including: depositing a high molecular substance on a substrate; applying a hydrophobic material onto the high molecular substance so that the hydrophobic material can infiltrate into the high molecular substance; forming a mask template by removing a part of the high molecular substance to form a recess where a region of the substrate is exposed to an outside; depositing conductive ink on the mask template; and performing annealing to abstract metal particles from a metallic compound dissolved in the conductive ink so that an insulating pattern can be formed in a region on which the high molecular substance is deposited, but a conductive pattern can be formed as the metal particles are abstracted from the conductive ink in the recess and cohere with each other.

Abstract: Disclosed is a method for fabricating fine conductive patterns using a surface modified mask template, the method including: depositing a high molecular substance on a substrate; applying a hydrophobic material onto the high molecular substance so that the hydrophobic material can infiltrate into the high molecular substance; forming a mask template by removing a part of the high molecular substance to form a recess where a region of the substrate is exposed to an outside; depositing conductive ink on the mask template; and performing annealing to abstract metal particles from a metallic compound dissolved in the conductive ink so that an insulating pattern can be formed in a region on which the high molecular substance is deposited, but a conductive pattern can be formed as the metal particles are abstracted from the conductive ink in the recess and cohere with each other.

Abstract: Provided is a method for forming a micropattern using a mask template. The method includes: forming a mask template on a substrate, wherein the mask template has an exposure section through which a portion of the substrate is exposed to the exterior and a non-exposure section provided by a polymer material applied on the remaining portion of the substrate; supplying conductive ink to the top of the mask template to deposit the conductive ink on the non-exposure section and on the substrate exposed through the exposure section; and heat treating the conductive ink in order to extract the conductive ink nanoclusters dissolved or dispersed in the conductive ink, wherein the conductive ink nanoclusters disposed on the non-exposure section are bound to the non-exposure section to form an insulating pattern having electrical insulating property, while the conductive ink nanoclusters disposed on the substrate form a conductive pattern having electroconductive property.

Abstract: The present invention relates to a self-aligned organic thin film transistor (TFT) and a fabrication method thereof. According to the present invention, a gate electrode is formed from a first conductive layer patterned on a substrate, a gate dielectric layer is formed on top of the substrate to cover the gate electrode, and a second conductive layer is then formed on the gate dielectric layer. Subsequently, ultraviolet (UV) backside exposure for irradiating the second conductive layer with UV from a bottom side of the substrate using the gate electrode as a mask, and source/drain electrodes self-aligned with the gate electrode is then formed not to overlap with the gate electrode by developing the second conductive electrode. Thereafter, an organic semiconductor layer is formed between and on the source/drain electrodes. In the present invention, an organic TFT can be fabricated using a reel-to-reel process, and therefore, the fabrication process can be simplified.

Abstract: Disclosed are methods of making fine patterns by exploiting difference in threshold laser fluence of materials and a thin film transistor (TFT) fabrication methods using the same, and more particularly, to a method of forming a fine pattern and a method of fabricating a TFT through the same method, in which a plurality of layers different in threshold laser fluence are stacked and then exposed to a laser so that a layer having a low threshold laser fluence can be selectively removed, thereby making fine patterns precisely and forming a cavity of a gate electrode precisely and easily.

Abstract: The present invention relates to a luminous advertisement sheet. The luminous advertisement sheet includes a light-transmitting print sheet having an EL advertisement region formed in at least one area of the print sheet, and a general advertisement region formed in the other area thereof. The EL advertisement region has at least one of a fixed pattern portion in which a transparent electrode layer, an EL layer and a dielectric layer are sequentially laminated and a variable pattern portion in which a transparent electrode layer, an EL layer, a dielectric layer and a plurality of pixel electrode layers are sequentially laminated. The general advertisement region allows general dye printing to be performed therein. The luminous advertisement sheet further includes a pattern electrode layer laminated and printed with a conductive ink material to have a predetermined luminous pattern in at least one area of the dielectric layer laminated in the fixed pattern portion and/or the variable pattern portion.

Abstract: The present invention discloses a high speed optical monitoring system being capable of monitoring clearly a subject at a high speed and having a small dimension.

Abstract: The present invention discloses an apparatus for manufacturing electronic devices using a roll-to-roll rotary pressing process, comprising a winding roll around which flexible printing paper is wound; a plurality of printing units arranged in a straight line; at least one coating unit; a rewinding roll to rewind the printing paper when printing has been completed; a plurality of guide rolls arranged between the winding roll and the rewinding roll, thus guiding the printing paper; a plurality of drying units, each drying unit being provided on a printing paper-path between the printing unit and the adjacent guide roll to dry ink transferred to the printing paper or on a printing paper-path between the coating unit and the adjacent guide roll to dry the printing paper on which coating agent is supplied; and tension regulating units installed around the winding roll and the rewinding roll, respectively, for regulating tension of the printing paper.

Abstract: Disclosed herein is a method of forming a pattern, comprising: attaching a single-layer or multi-layer sacrificial film made of a semi-solid or solid material on part or all of the surface of a substrate; irradiating the sacrificial film with a focusable energy beam such as a laser beam to form a region to be charged with a functional material; charging the functional material into the formed region using a method such as an inkjet; drying the functional material; and removing the sacrificial film, thus obtaining the desired pattern.

Abstract: Disclosed herein is a method of forming a pattern, comprising: attaching a single-layer or multi-layer sacrificial film made of a semi-solid or solid material on part or all of the surface of a substrate; irradiating the sacrificial film with a focusable energy beam such as a laser beam to form a region to be charged with a functional material; charging the functional material into the formed region using a method such as an inkjet; drying the functional material; and removing the sacrificial film, thus obtaining the desired pattern.

Abstract: The present invention relates to a method of enlarging a travel of a piezoelectric sensor and a MEMS switch employing an enlarging means employing the leverage theory. In accordance with the present invention, there is provided a MEMS switch capable of using a relatively low voltage, less than 5V, lowering power consumption isolation and insertion loss, and having application to a wide range of wireless communication systems such as PCS and wireless LAN.

Abstract: Disclosed herein is a method and apparatus for manufacturing an electronic device, which is intended to economically manufacture an electronic circuit device, such as an IC chip, using functional ink and a roll-to-roll rotary pressing process. The method includes a first step of injecting functional ink into a forming groove of a forming roll, a second step of removing ink covering a surface of the forming roll, a third step of drying a surface of the functional ink injected into the forming groove, a fourth step of transferring the dried surface of the functional ink to a printing roll, a fifth step of drying another surface of the functional ink transferred to the printing roll, a sixth step of transferring the functional ink from the printing roll to flexible printing paper which is unwound from a winding roll, and a seventh step of winding the printing paper, on which an electronic circuit is printed, around a rewinding roll.

Abstract: The present invention relates to a method of enlarging a travel of piezoelectric sensor and a MEMS switch employing the enlarged travel of piezoelectric sensor. The MEMS switch provided with an enlarging means employing the leverage theory. In accordance with the present invention, there is provided a MEMS switch capable of using a relatively low voltage less than 5V, lowering a power consumption, isolation and insertion loss, and applying to wide range of wireless communication such as PCS, wireless LAN etc.