Abstract: The present invention discloses an array substrate for an active-matrix LCD device and a method of fabricating the same. The array substrate reduces the number of masks typically used in the fabrication process so that reliability is enhanced and the cost is reduced over the conventional device and method. Electric shorts caused by hillocks can be prevented or reduced by incorporating short-preventing sections between the gate line and an overlapping pixel electrode.

Abstract: A method for fabricating an LCD includes: providing a substrate with a thin film transistor (ITT) part defined thereon; forming a metallic film for a gate electrode on the substrate; etching the metallic film through a first printing process to form a gate electrode; sequentially forming a gate insulating layer, a semiconductor layer, and a metallic film for source and drain electrodes on the substrate; selectively etching the metallic film for source and drain electrodes, the semiconductor layer and the gate insulating layer through a second printing process to form a gate insulating layer pattern, a preliminary active pattern and a metallic film pattern which are sequentially stacked such that the gate insulating layer pattern is over-etched from the side of the preliminary active pattern; forming an insulating layer on the substrate with the metallic film pattern; etching the insulating layer to expose the metallic film pattern; forming a transparent conductive film on the metallic film pattern and a remai

Abstract: A method of manufacturing a liquid crystal display includes: loading an upper substrate or a lower substrate on a stage; positioning a printing roll on the loaded substrate; measuring the printing roll, the measurement being indicative of a size change of the printing roll; compensating the operation of the printing roll relative to the stage according to the measurement of the printing roll; supplying an alignment solution to the printing roll; driving the printing roll under the compensated operation to print the alignment solution onto the loaded substrate; attaching the upper substrate and the lower substrate; and forming a liquid crystal layer between the upper substrate and the lower substrate.

Abstract: A thin film transistor array substrate includes a gate pattern on a substrate. The gate pattern includes a gate electrode, a gate line connected to the gate electrode, and a lower gate pad electrode connected to the gate line. A source/drain pattern includes a source electrode and a drain electrode, a data line connected to the source electrode, and a lower data pad electrode connected to the data line. A semiconductor pattern is formed beneath the source/drain pattern. A transparent electrode pattern includes a pixel electrode connected to the drain electrode, an upper gate pad electrode connected to the lower gate pad electrode, and an upper data pad electrode connected to the lower data pad electrode. The thin film array substrate further includes a gate insulating pattern and a passivation film pattern stacked at remaining areas excluding areas within which the transparent electrode pattern is formed.

Abstract: A pattern transcription apparatus comprises a cliche including a concave portion, a convex portion and a printing stopper, the printing stopper formed in the concave portion; and a blanket, on which a resist material layer is coated, rotatable on the cliche, wherein edges of the printing stopper protruding from the printing stopper to have a height greater than a top surface of the convex portion.

Abstract: A thin film transistor array substrate has a gate electrode of the thin film transistor, a gate line connected to the gate electrode, and a gate pad connected to the gate line; a source/drain pattern including a source electrode and a drain electrode of the thin film transistor, a data line connected to the source electrode, a data pad connected to the data line, a storage electrode formed and superimposed with the gate line; a semiconductor pattern formed in low part of the substrate; a transparent electrode pattern including a pixel electrode connected to the drain electrode and the storage electrode, a gate pad protection electrode covering the gate pad, and a data pad protection electrode covering the data pad; and a protection pattern and a gate insulation pattern stacked in a region other than the region where the transparent electrode pattern is formed.

Abstract: Provided are a roller apparatus, a printing method and a method of fabricating an LCD device using the same, which can minimize the number of processes and a printing defect. In the printing method, first patterns are formed on a blanket. The first patterns have different surface energy from that of the blanket, and the blanket is formed around a roller. The roller is rotated and a printing material is dropped to form second patterns on the blanket between the first patterns. The second patterns are transferred from the roller onto a substrate.

Abstract: A pattern transcription apparatus comprises a cliché including a concave portion, a convex portion and a printing stopper, the printing stopper formed on a bottom surface of the concave portion; and a blanket, on which a resist material layer is coated, rotatable on the cliché, wherein a surface energy density of the blanket is greater than a surface energy density of the printing stopper and is smaller than a surface energy of the cliché.

Abstract: A method for manufacturing a printing plate is realizes a precise and fine pattern by minimizing a variation of etching critical dimension. The method includes forming a hard mask having an opening on an insulating substrate; forming a first trench having a first depth in the insulating substrate using the hard mask; coating, patterning and developing a first photoresist over an entire surface of the insulating substrate including the hard mask; and forming at least a second trench having a second depth in the insulating substrate using the hard mask, wherein the second depth is deeper than the first depth.

Abstract: The present invention discloses a four-mask method of manufacturing an array substrate of a liquid crystal display device and the liquid crystal display device having the same array substrate.

Abstract: An in plane switching (IPS) mode liquid crystal display (LCD) panel is fabricated with a reduced number of mask processes and includes a thin film transistor (TFT) array substrate with a TFT provided at a crossing of gate and data lines, a protective film protecting the TFT, a pixel electrode connected to the TFT, a common line substantially parallel to the pixel electrode, a common electrode connected to the common line to generate a horizontal electric field with the pixel electrode, and a pad including a transparent conductive material and connected to the gate line, the data line and/or the common line. A color filter array substrate is joined to, and overlaps a portion of, the TFT array substrate. Portions of the protective film where the color filter array substrate which do not overlap the TFT array substrate are removed to expose the transparent conductive material included in the pad.

Abstract: A liquid crystal display device according to an embodiment of the present invention includes: a gate line formed on a substrate; a data line to provide a pixel area by crossing the gate line with a gate insulating film therebetween; a common line formed in parallel to the gate line; a thin film transistor connected to the gate line and the data line; a passivation film formed to cover the thin film transistor; a contact hole which penetrates the passivation film; a pixel electrode connected with the thin film transistor; and a common electrode connected with the common line to form a horizontal electric field with the pixel electrode, and wherein at lease one of the gate line, the data line, the common line, the pixel electrode and the common electrode is composed of a first conductive layer and a second conductive layer which is formed to cover the first conductive layer by being extended more outward than the first conductive layer, and is formed to have a border with the passivation film within the contact

Abstract: A substrate has intersecting gate and data lines with a gate insulating film therebetween, a thin film transistor provided at an intersection of the gate and data lines, a pixel electrode connected to the transistor, a pad connected to a signal line via a contact hole and containing a transparent conductive film, and a protective film overlapping a color filter array substrate to expose the film. The contact hole exposes the end of the pad and/or signal line and an adjacent area. A gate electrode, source and drain electrodes, and a contact electrode are formed from first, second, and third conductive layers, respectively. A contact hole exposes the first conductive layer of one transistor and an adjacent portion of the second conductive layer of another transistor. The contact electrode connects the exposed first and second conductive layers. Only three mask processes are used in fabricating the substrate.

Abstract: An LCD device having an improved aperture ratio is disclosed. The LCD device includes first and second substrate facing each other; gate and data lines formed on the first substrate, wherein the gate and data lines are formed substantially perpendicularly with respect to each other to define a pixel region; common and pixel electrodes formed in the pixel region, wherein the common and pixel electrodes are arranged in an alternating pattern with an empty space therebetween, wherein a horizontal electric field is generated between the common and pixel electrodes; and a liquid crystal layer formed between the first and second substrates.

Abstract: A method of fabricating a liquid crystal display panel includes forming a first conductive layer on a substrate and patterning the first conductive layer using a first resist pattern printed on the first conductive layer to form a gate pattern. A semiconductor layer and a second conductive layer are stacked on a gate insulating film formed on the gate pattern. A second resist pattern having a stepped part printed on the second conductive layer forms a source/drain pattern of a transistor. A third resist pattern printed on a passivation film formed on the substrate patterns the film. A third conductive layer is formed on the patterned film and the third resist pattern and the third resist pattern is stripped to form a transparent electrode pattern including a pixel electrode connected to the drain electrode of the transistor.

Abstract: The present invention discloses a four-mask method of manufacturing an array substrate of a liquid crystal display device and the liquid crystal display device having the same array substrate.

Abstract: A liquid crystal display has a pad structure. The pad structure includes at least one pad formed on a substrate, an insulating film formed on the pad, and at least one conductive layer connected to the pad through contact holes defined through the insulating film. The insulating film covers side surfaces of the pad and a portion of the substrate adjacent to the side surfaces of the pad.

Abstract: A manufacturing method of a thin film transistor of a liquid crystal display device using 3-mask includes forming a gate electrode over a substrate, consecutively forming a gate insulating layer and an active layer, forming a first photoresist pattern, removing an active layer formed at a source/drain region, ashing the first photoresist pattern to expose a part of an active region, forming a source/drain electrode, forming a passivation layer, forming a second photoresist pattern that exposes a pixel region over the passivation layer; forming a pixel region by using the second photoresist pattern as a mask, side-etching a part of the passivation layer to expose a part of the drain electrode, forming a pixel electrode material over the second photoresist pattern and the pixel region, and simultaneously removing the second photoresist pattern and the pixel electrode material formed thereon to form a pixel electrode.

Abstract: An array substrate of a liquid crystal display device includes a substrate; an elongated gate line having a gate electrode on said substrate, said gate line extending in a first direction; a gate extension line on said substrate and that connects to said gate line, said gate extension line extending substantially perpendicularly to said gate line; a first insulating layer over said substrate, said gate line, and said gate extension line; a storage capacitor comprising a portion of said gate line, a conductive capacitor electrode that overlaps a portion of said gate line, an ohmic contact layer and a dielectric layer that includes said first insulating layer and a semiconductor layer; a passivation layer on said capacitor electrode; and a pixel electrode on said passivation layer, said pixel electrode contacting said capacitor electrode through a hole in said passivation layer.

Abstract: A method for fabricating color filter layer of an LCD comprises forming a plurality of black matrixes separated at certain intervals on a color filter substrate, and forming R, G and B color filter layers by using a plurality of needles between the plurality of black matrixes on the color filter substrate.