Abstract: A TFT array substrate has a PAI pattern, and the PAI pattern has an over-etched portion of the pure amorphous silicon layer. This over-etched portion prevents a short between the pixel electrode and the pure amorphous silicon layer (i.e., the active layer).

Abstract: A method of fabricating a liquid crystal display device includes the steps of forming a gate electrode on a transparent substrate; forming a gate insulating film, an active layer and an ohmic contact layer on the transparent substrate to cover the gate electrode; forming a source electrode and a drain electrode on the ohmic contact layer and patterning the drain electrode to form an L-shaped portion and a plurality of protrusions; forming a protective layer on the source and drain electrodes such that side surfaces of the protective layer, the drain electrode, the ohmic contact layer and the active layer are exposed; and forming a pixel electrode on the protective layer to electrically contact the side surface of the drain electrode.

Abstract: An electrostatic damage preventing apparatus for a thin film transistor array of a liquid crystal display includes a horizontal ground voltage line disposed at a first perimeter portion of the thin film transistor array, a vertical ground voltage line disposed at a second perimeter portion of the thin film transistor array, and a first electrostatic damage-preventing switching device group including parallel connection of at least two electrostatic damage-preventing switching devices to divide and divert an electrostatic voltage applied over the horizontal ground voltage line.

Abstract: A liquid crystal display (LCD) device and method for manufacturing the same in which a plurality of patterns are formed on one substrate reduces the manufacturing cost and simplifies the process steps by minimizing the number of masks required to form the patterns. The LCD device includes first and second substrates, a thin film transistor (TFT) formed in a predetermined region on the first substrate, a pixel electrode formed in a pixel region on the first substrate, a color filter layer formed on the pixel electrode, a black matrix pattern formed in a region other than the pixel electrode, and a liquid crystal layer formed between the first and second substrates. The method for manufacturing the LCD device having a pixel region defined by gate and data lines, includes the steps of forming a TFT on a first substrate, forming a black matrix pattern in a region other than the pixel region, forming a pixel electrode in the pixel region, and forming a color filter layer on the pixel electrode.

Abstract: An array substrate for use in a liquid crystal display device is fabricated by the steps of forming a first metal layer on a substrate, patterning the first metal layer to form a gate line, a gate electrode, a gate pad, a first shorting bar, and a second shorting bar, forming a gate insulation layer, a pure amorphous silicon layer, a doped amorphous silicon layer and a second metal layer to cover the patterned first metal layer, patterning the second metal layer and the doped amorphous silicon layer to form first, second and third through-holes and first and second grooves to expose a portion of the pure amorphous silicon layer, the first and second grooves creating an isolated portions of the second metal layer, forming a passivation layer to cover the patterned second metal layer, forming a source electrode, a drain electrode, a data line, a data pad, an insulating segment, and first, second and third contact holes, and forming a pixel electrode, a first connector and a second connector of a transparent con

Abstract: A liquid crystal display panel is disclosed, which includes a substrate, a gate line on the substrate at a constant distance in one direction, a data line, source/drain electrodes, and a storage electrode arranged to cross the gate line at a constant distance, a first contact hole in the drain electrode, a pixel electrode connected with the drain electrode through the first contact hole in a pixel region, and a first pattern below the first contact hole to shield light.

Abstract: A TFT array substrate has a PAI pattern, and the PAI pattern has an over-etched portion of the pure amorphous silicon layer. This over-etched portion prevents a short between the pixel electrode and the pure amorphous silicon layer (i.e., the active layer). The over-etched portion also enables the aperture ratio to increase.

Abstract: A liquid crystal display device includes a transparent substrate, a gate electrode disposed on the transparent substrate, a gate insulating film disposed on the transparent substrate and covering the gate electrode, an active layer disposed on the gate insulating film, an ohmic contact layer disposed on the active layer, a source electrode disposed on the ohmic contact layer and at one side of the gate electrode, a drain electrode disposed on the ohmic contact layer and at another side of the gate electrode, the drain electrode including an L-shaped portion and a plurality of protrusions, a protective layer disposed on the active layer covering upper surfaces of the source electrode and the drain electrode, and a pixel electrode disposed on the protective layer and electrically contacting a side surface of the drain electrode.

Abstract: A liquid crystal display (LCD) device has improved adhesion between a tape carrier package and a liquid crystal panel and the LCD device includes an organic insulating layer for increasing the aperture ratio. The LCD includes electrode pads provided on a substrate, semiconductor patterns for preventing etching of the portions of the gate insulating layer that are in contact with the electrode pads, and transparent electrodes for protecting the electrode pads and in contact with the semiconductor patterns. The LCD eliminates the organic protective layer positioned around the pads, thereby strengthening the adhesion between the liquid crystal panel and the TCP.

Abstract: A liquid crystal display device and method for fabricating the same is disclosed. The liquid crystal display device includes: first and second substrates; a plurality of gate lines and data lines disposed crossly on the first substrate to define a pixel region; a thin film transistor formed at a cross point of the gate lines and the data lines; a passivation film coated on the entire surface of the first substrate including the thin film transistor; a pixel electrode connected to the thin film transistor, partially overlapping with the neighboring gate lines and the neighboring data lines and formed on the passivation film corresponding to the pixel region; and a black matrix formed on a predetermined area of the second substrate.

Abstract: A method of fabricating a liquid crystal display device includes preparing upper and lower substrates, forming an array pattern of thin film transistors on the lower substrate, and depositing a thin film layer on the entire lower substrate except for four corners by using a shadow mask. A seal pattern is formed on the lower substrate and an attachment resin is formed at each of the four corners of the lower substrate. A color filter and a black matrix are formed on the upper substrate. The upper and lower substrates are attached and the attachment resin is hardened by exposure to light.

Abstract: A liquid crystal display device having a high aperture ratio is disclosed. In the device, each side of a pixel electrode consists a portion overlapping with a data wire and a portion spaced from the data wire in such a manner that overlapping areas at both sides of the data wire are equal to each other. Accordingly, an aperture ratio can be improved.

Abstract: An array substrate of the present invention includes a storage capacitor that has a storage-on-gate structure. One embodiment of the present invention discloses the array substrate having a metal island pattern on the substrate beneath a drain electrode. The metal island pattern is disposed beneath a drain contact hole through which a pixel electrode contacts the drain electrode. Since the metal island pattern has the same thickness as the gate line, the passivation layer can have the same height both in a drain region and in a storage region. Over-etching is minimized with the passivation layer in the drain and storage region having the same uniform thickness.

Abstract: An array substrate of the present invention includes a storage capacitor that has a storage-on-gate structure. The storage capacitor includes a gate line as a first electrode and a capacitor electrode as a second electrode. The capacitor electrode particularly has an extension that protruding from the capacitor electrode into a pixel region. Thus, when connecting a pixel electrode to the storage capacitor, the pixel electrode contacts the extension of the capacitor electrode. Since a storage contact hole through which the pixel electrode contacts the extension, a short between the pixel electrode and the gate line in the storage capacitor is prevented.

Abstract: A liquid crystal display device and a fabricating method thereof wherein four masks are used so as to reduce a process. In the device, a gate electrode is formed on a transparent substrate. A gate insulating film is formed on the transparent substrate to cover the gate electrode. An active layer is provided at a portion corresponding to the gate electrode on the gate insulating film. Source and drain electrodes are intervened by an ohmic contact layer on the active layer. A contact portion is connected to and extended from a portion of the drain electrode opposed to the source electrode and has an exposed side surface. A passivation layer is formed on the active layer in such a manner to cover the source and drain electrodes, but to expose the side surface of the contact portion. A pixel electrode is formed on the gate insulating film in such a manner to contact the exposed side surface of the contact portion.

Abstract: A liquid crystal display device that is capable of improving an anti-impact and anti-corrosion. In the device, corner cutting keys are provided to cut the corners of a liquid crystal panel. Also, verniers are provided to grind the corner of the liquid crystal panel.

Abstract: A gray tone mask, which is patterned and used in a photolithographic manufacturing process wherein a plurality of thin films are deposited and patterned on a substrate, said mask having different gaps in the vertical and horizontal directions so that the quantity of light which passes the patterned mask and irradiated on the photosensitive material is controlled depending on the direction of light irradiated from an exposing apparatus; and a method of manufacturing a TFT of a LCD using just four masks.

Abstract: An LCD panel includes a plurality of gate lines and gate electrodes formed on a substrate and a gate insulating film formed on the substrate including the gate lines and the gate electrodes. A semiconductor film is formed in a region on the gate insulating film and an ohmic contact film formed on the semiconductor film. A plurality of data lines cross the gate lines; a source electrode is formed on the ohmic contact film; and a pixel electrode is formed in a pixel region defined by the gate and data lines. A drain electrode is formed on the ohmic contact film, and has an uneven width. Since a portion of drain electrode that overlaps with the gate electrode has a smaller width than a width of other portions of the drain electrode, variation in an area of the drain electrode overlapped with the gate electrode is small, so that variation of the parasitic capacitance can be reduced, thereby improving picture quality.

Abstract: A method of fabricating a liquid crystal display device includes preparing upper and lower substrates, forming an array pattern of thin film transistors on the lower substrate, and depositing a thin film layer on the entire lower substrate except for four corners by using a shadow mask. A seal pattern is formed on the lower substrate and an attachment resin is formed at each of the four corners of the lower substrate. A color filter and a black matrix are formed on the upper substrate. The upper and lower substrates are attached and the attachment resin is hardened by exposure to light.

Abstract: An LCD panel and a method for manufacturing the same is disclosed, in which light leakage is prevented from occurring by forming a dummy pattern in an array peripheral region. The LCD panel includes a first substrate having an array region and an array peripheral region, a gate line on the first substrate, a gate insulating film on the entire surface of the first substrate including the gate line, a data line arranged to cross the gate line for defining a pixel region on the array region, a light leakage prevention film formed between the gate and/or data lines of the array peripheral region for preventing light leakage in the panel, and a TFT and a pixel electrode formed in each pixel region.