Patent application number | Description | Published |
20080205946 | IMAGE FORMING APPARATUS AND DEVELOPING DEVICE THEREOF - An image forming apparatus having the improved construction and mounting structure of a device for charging paper to be attached to a paper feed body is disclosed. The image forming apparatus includes a plurality of developing devices and a paper feed body which is mounted opposite to the plurality of developing devices and rotates to feed paper. A sheet member is mounted to a developing device of the plurality of developing devices, which is disposed on an uppermost paper stream side in a feeding direction of the paper. The sheet member charges the paper as it advances to the paper feed body to attach the paper to the paper feed body. The image forming apparatus further includes a voltage transmission part which transmits high voltage to the sheet member. The voltage transmission part includes a conductive fixing member to which an end of the sheet member is fixed, and a voltage transmission plate having a first end portion with a terminal contact portion to contact a terminal mounted in a main body and a second end portion electrically connected to the fixing member. | 08-28-2008 |
20080226367 | WASTE TONER TRANSFER DEVICE, WASTE TONER CLEANING DEVICE HAVING THE WASTE TONER TRANSFER DEVICE, DEVELOPING UNIT HAVING THE WASTE TONER CLEANING DEVICE, AND IMAGE FORMING APPARATUS - A waste toner transfer device of an image forming apparatus includes a waste toner transfer unit which is disposed in proximity to a cleaning member to transfer waste toner removed from a photoconductive medium by the cleaning member, and includes a plurality of protrusions at one end, a driving unit which horizontally reciprocates the waste toner transfer unit, and a plurality of ribs which constrain the plurality of protrusions when the waste toner transfer unit moves, so that the waste toner transfer unit vibrates vertically. | 09-18-2008 |
20080240814 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - A developing unit includes a waste toner housing having an upper housing and a lower housing which face each other, at least one support unit to allow connection between the upper and lower housings, and to support facing surfaces of the upper and lower housings, and a toner housing which is disposed on a lower part of the waste toner housing and is spaced apart from the waste toner housing at a predetermined distance. Accordingly, the waste toner housing is prevented from being deformed by heat and pressure, and thus white lines on images, flowback of waste toner and insufficient cleaning, which are caused by interference with the light path due to deformation of the waste toner housing, can be reduced. Additionally, tolerance can be greatly reduced as a result of resolving the problem of deformation of the waste toner housing, so a developing unit having a smaller size can be provided. | 10-02-2008 |
20090214251 | IMAGE FORMING APPARATUS AND FRAME UNIT THEREOF - An image forming apparatus includes an image carrier, an exposure unit to form a latent image on the image carrier by light, and a particle entering prevention device to prevent particles from entering an optical path between the exposure unit and the image carrier. The particle entering prevention device includes a particle storage unit disposed in a vicinity of the optical path, to store the particles therein. | 08-27-2009 |
20090214263 | IMAGE FORMING APPARATUS, AND DEVELOPING DEVICE AND DEVELOPING UNIT THEREOF - An image forming apparatus includes developing units designed to have an appropriate developer storage capacity in consideration of developer consumption, and improved convenience of use. The image forming apparatus also includes an image carrier, and plural developing units arranged along a rotating direction of the image carrier to supply developers to the image carrier. The plural developing units include a first developing unit having the largest developer storage capacity and a second developing unit having the second largest developer storage capacity after the first developing unit. | 08-27-2009 |
20090245906 | IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - An image forming device includes a housing, a paper loading portion provided at an upper surface of the housing to load paper to be discharged and having a paper discharge hole, a fixing unit disposed in an upper region of the housing and used to fix a developer to the paper, and a cover to open or close an upper side of the fixing unit, the cover having one end protruding from the paper discharge hole. | 10-01-2009 |
20090304413 | IMAGE FORMING APPARATUS, DEVELOPING DEVICE AND DEVELOPER CARTRIDGE THEREOF - An image forming apparatus, a developing device and a developer cartridge are disclosed. The developer cartridge includes a cartridge housing and a developer delivery unit to deliver a developer received in the cartridge housing. The developer delivery unit includes a delivery member and a contact portion to come into contact with the delivery member. The contact between the contact portion and the delivery member form a length longer than a straight line connecting one end of the contact portion to the other end. | 12-10-2009 |
20100158576 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - Disclosed are a developing unit and an image forming apparatus having the same. The developing unit includes a first frame and a second frame. The first frame supports thereon a first set of processing members and includes at least one jig hole for mounting to a jig. The second frame supports thereon a second set of processing members. Several connection parts provided in the first and second frames allow assembly of the developing unit that includes a rectilinear movement and a rotational movement of the first and second frames relative to each other during the coupling together of the connection parts so as to couple the first and second frames together. The relative movement in certain direction of the frames may be limited during the relative rotational movement of the frames. | 06-24-2010 |
20100245698 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to a liquid crystal display. The liquid crystal display has a lower panel including a first pixel area having a first pixel electrode and a first light leakage preventing member, a final pixel area having a second pixel electrode and a second light leakage preventing member, and middle pixel areas disposed between the first pixel area and the final pixel area, each of the middle pixel areas including a first middle pixel electrode and a second middle pixel electrode. Accordingly, light leakage may be effectively prevented at the first pixel area and the final pixel area that are disposed on the edge. | 09-30-2010 |
20100316409 | IMAGE FORMING APPARATUS, METHOD OF HANDLING THE IMAGE FORMING APPARATUS, AND METHOD OF PACKAGING THE IMAGE FORMING APPARATUS - Disclosed are an electrophotographic image forming apparatus including a detachable development cartridge having arranged therein a photoconductive drum and a developing roller for forming a toner image through a development nip formed between the photoconductive drum and the developing roller. The development cartridge may include a development nip control member that can switch between a first position, in which the development nip control member causes the photoconductive drum to be separated from the developing roller, and a second position, in which the development nip control member causes the photoconductive drum to be in a pressing contact with the developing roller so as to form therebetween the development nip. The development cartridge may be mounted in the main body of the electrophotographic image forming apparatus with its development nip control member being in the first position, separating the photoconductive member from the developing roller. The electrophotographic image forming apparatus may be packaged for distribution with the development cartridge received in the main body thereof where the photoconductive drum and the developing roller are no in contact with each other in the development cartridge as packaged. | 12-16-2010 |
20100321617 | LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF - Exemplary embodiments of the present invention disclose a liquid crystal display (LCD) and a method of manufacturing the same. The LCD may have a display area and a peripheral area. An organic layer of the peripheral area may be patterned using a half-tone mask, and a protrusion member may be formed in the peripheral area. Accordingly, the thin film transistor array panel and the corresponding substrate may be prevented from being temporary adhered in the peripheral area such that the density of the liquid crystal molecules filled in the peripheral area may be uniformly maintained and the display quality of the liquid crystal display may be improved. | 12-23-2010 |
20110002708 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS EMPLOYING THE SAME - A developing device has a housing including a toner container containing toner, and a developing unit. The developing unit includes a developing roller and a photoconductive drum, and a barrier member including a toner supply window. The barrier member is combined with the housing to separate the toner container and the developing unit from each other. The developing unit also includes a blocking film that is attached to the barrier member to block the toner supply window. An end of the blocking film is exposed outside the housing through an opening formed in a sidewall of the housing. A bottom surface and first and second side surfaces of the barrier member are attached to a bottom surface and first and second side surfaces of the housing by using a welding process, and a distance between the first and second side surfaces of the barrier member and a distance between the first and second side surfaces of the housing increase from bottom to top. | 01-06-2011 |
20110013925 | DEVELOPING DEVICE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS INCLUDING THE DEVELOPING DEVICE - A developing device detachably coupled to an electrophotographic image forming apparatus which includes a housing including a photoconductive drum and at least one roller; and an electrical contact member disposed in the housing, connected to the at least one roller, and formed of a conductive metallic plate to provide an electrical path between the at least one roller and a power supply when the developing device is attached to the electrophotographic image forming apparatus, wherein the electrical contact member includes a base including a coupling unit to engage with the housing, a first elastic member to bend from the base in a first direction; a second elastic member to bend from the first elastic member in a second direction and including a contact to contact the at least one roller; and an anti-deformation unit to bend from the base and to face a surface of the first elastic member in the second direction of the second elastic member to prevent the first elastic member from bending in the second direction. | 01-20-2011 |
20110013929 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes a housing containing toner having an opening at a side thereof, a developing roller supplying the toner supplied through the opening to a photoconductive drum, and a regulator contacting the outer circumference of the developing roller to regulate the amount of the toner supplied to the photoconductive drum. The housing also includes a lower frame having both side portions and a lower end portion respectively forming both edges and a lower edge of the opening in a lengthwise direction, and an upper frame welded and coupled to the lower frame and including a leading end portion forming an upper edge of the opening and a recess portion recessed from the leading end portion at both end portions of the leading end portion in the lengthwise direction. Both side portions of the lower frame includes a first surface contacting the recess portion to prevent the upper frame from being pushed toward the developing roller when the upper frame is welded and coupled to the lower frame. | 01-20-2011 |
20110026967 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS HAVING THE SAME - A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position. | 02-03-2011 |
20110049519 | Thin Film Transistor Array Panel and Method of Manufacturing the Same - A thin film transistor array panel includes an insulation substrate. A signal line is formed on the insulation substrate. A thin film transistor is connected to the signal line. A color filter is formed on the substrate. An organic insulator is formed on the color filter and includes a first portion and a second portion having different thicknesses. A light blocking member is formed on the second portion of the organic insulator. A difference between the surface height of the first portion of the organic insulator and the surface height of the second portion of the organic insulator is in the range of about 2.0 μm to 3.0 μm. | 03-03-2011 |
20110097114 | IMAGE FORMING APPARATUS, AND DEVELOPING DEVICE AND DEVELOPING UNIT THEREOF - An image forming apparatus includes developing units designed to have an appropriate developer storage capacity in consideration of developer consumption, and improved convenience of use. The image forming apparatus also includes an image carrier, and plural developing units arranged along a rotating direction of the image carrier to supply developers to the image carrier. The plural developing units include a first developing unit having the largest developer storage capacity and a second developing unit having the second largest developer storage capacity after the first developing unit. | 04-28-2011 |
20110108839 | Thin Film Transistor Substrate and Manufacturing Method Thereof - A thin film transistor array panel according to an exemplary embodiment of the present invention comprises a substrate, a gate line formed on the substrate, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, and a data line formed on the semiconductor layer, wherein the data line comprises a lower data layer, an upper data layer, a data oxide layer, and a buffer layer, wherein the upper data layer and the buffer layer comprise a same material. | 05-12-2011 |
20110133193 | THIN FILM TRANSISTOR SUBSTRATE AND THE METHOD THEREOF - A thin film transistor array panel includes a gate line, a gate insulating layer that covers the gate line, a semiconductor layer that is disposed on the gate insulating layer, a data line and drain electrode that are disposed on the semiconductor layer, a passivation layer that covers the data line and drain electrode and has a contact hole that exposes a portion of the drain electrode, and a pixel electrode that is electrically connected to the drain electrode through the contact hole. The data line and drain electrode each have a double layer that includes a lower layer of titanium and an upper layer of copper, and the lower layer is wider than the upper layer, and the lower layer has a region that is exposed. The gate insulating layer may have a step shape. | 06-09-2011 |
20110175088 | Thin-Film Transistor Substrate and Method of Fabricating the Same - A thin-film transistor (TFT) substrate having reduced defects is fabricated using a reduced number of masks. The TFT substrate includes gate wiring formed on a substrate. The gate wiring includes a gate electrode. A semiconductor pattern is formed on the gate wiring. An etch-stop pattern is formed on the semiconductor pattern. Data wiring includes a source electrode which is formed on the semiconductor pattern and the etch-stop pattern. Each of the gate wiring and the data wiring includes a copper-containing layer and a buffer layer formed on or under the copper-containing layer. | 07-21-2011 |
20110176817 | DEVELOPER AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developer of an image-forming apparatus includes a photoconductor, a housing comprising a waste toner container in which waste toner removed from the photoconductor is contained, and a recessed portion depressed downwardly in a center portion of an upper wall of the waste toner container, the center portion corresponding to a center portion of the photoconductor in a lengthwise direction to move toner away from the center portion. | 07-21-2011 |
20110176828 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes a toner storage area containing toner, a developing portion in which a developing roller is installed, and a housing including a toner supply window to connect the toner storage area and the developing portion. A pair of rails is disposed on the toner supply window to extend in a lengthwise direction of the developing roller, and a blocking member including a blocking portion is provided to open and close the toner supply window when the blocking member is removed from and inserted into the pair of rails from outside of the housing, respectively. | 07-21-2011 |
20110182639 | DEVELOPER AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developer includes a waste toner container having a cleaning member to clean a photoconductive drum, and a waste toner transporting member to transport waste toner from the photoconductive drum to a waste toner storage area. The waste toner transporting member is moved up, down, forward, and backward by a rotation member having an eccentricity unit. As the rotation member rotates, the waste toner transporting member, which is connected to the eccentricity unit, moves up, down, forward, and backward. | 07-28-2011 |
20110186843 | Manufacturing method of thin film and metal line for display using the same, thin film transistor array panel, and method for manufacturing the same - A method for forming a thin film according to an exemplary embodiment of the present invention includes forming the thin film at a power density in the range of approximately 1.5 to approximately 3 W/cm | 08-04-2011 |
20120140160 | DISPLAY PANEL AND DISPLAY APPARATUS HAVING THE SAME - A display panel includes a first display substrate, a second display substrate, and a liquid crystal layer. The first display substrate includes a first base substrate having a plurality of display cells, a plurality of data lines, a plurality of gate lines, and a plurality of pixel electrodes. The data lines, the gate lines and the pixel electrodes are respectively separated in each of the display cells. The second display substrate includes a second base substrate, a light blocking pattern corresponding to the data lines and the gate lines, a common electrode facing the pixel electrodes, and a common line overlapping with the blocking pattern. The liquid crystal layer is disposed between the first and second display substrate. | 06-07-2012 |
20120171602 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, AND APPARATUS AND METHOD FOR FORMING IMAGE USING THE SAME - Disclosed is a toner for developing an electrostatic charge image, including a toner particle coated with a combination of sol-gel silica particles, hydrophobically surface-treated fumed silica particles, and hydrophobically surface-treated titanium dioxide particles. | 07-05-2012 |
20120193634 | THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A thin film transistor substrate according to an embodiment of the present invention includes: an insulation substrate; a gate line formed on the insulation substrate; a first interlayer insulating layer formed on the gate line; a data line and a gate electrode formed on the first interlayer insulating layer; a gate insulating layer formed on the data line and gate electrode; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; a second interlayer insulating layer formed on the semiconductor; a first connection formed on the second interlayer insulating layer and electrically connecting the gate line and the gate electrode to each other; a drain electrode connected to the semiconductor; a pixel electrode connected to the drain electrode; and a second connection connecting the data line and the semiconductor to each other. | 08-02-2012 |
20120236222 | LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - A liquid crystal display includes: a first gate line; a first data line crossing the first gate line; a first switching element connected with the first gate line and the first data line; a second switching element connected with the first gate line and the first data line; a first liquid crystal capacitor connected with the first switching element; a second liquid crystal capacitor connected with the second switching element; a boost switching element which is turned on during a time period not overlapping a time period during which the first switching element is turned on; and a boost capacitor including a first terminal connected with the boost switching element and a second terminal connected with the first liquid crystal capacitor. | 09-20-2012 |
20120308271 | IMAGE FORMING APPARATUS, AND DEVELOPING DEVICE AND DEVELOPING UNIT THEREOF - An image forming apparatus includes developing units designed to have an appropriate developer storage capacity in consideration of developer consumption, and improved convenience of use. The image forming apparatus also includes an image carrier, and plural developing units arranged along a rotating direction of the image carrier to supply developers to the image carrier. The plural developing units include a first developing unit having the largest developer storage capacity and a second developing unit having the second largest developer storage capacity after the first developing unit. | 12-06-2012 |
20130001567 | THIN FILM TRANSISTOR SUBSTRATE AND MANUFACTURING METHOD THEREOF - A thin film transistor array panel according to an exemplary embodiment of the present invention comprises a substrate, a gate line formed on the substrate, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, and a data line formed on the semiconductor layer, wherein the data line comprises a lower data layer, an upper data layer, a data oxide layer, and a buffer layer, wherein the upper data layer and the buffer layer comprise a same material. | 01-03-2013 |
20130093658 | DISPLAY DEVICE - A display device includes gate lines, data lines, first wires and second wires extending in the directions of the gate lines and data lines, and pixels having a first subpixel and a second subpixel each. The first subpixel has a first subpixel electrode and a first switching element, and the second subpixel has a second subpixel electrode and second and third switching elements. The control terminals of the three switching elements are connected to the same gate line, and the input terminals of the first and second switching elements are connected to the same data line. The first and second switching elements have output terminals connected to the first and second subpixel electrodes, respectively. The second switching element's output terminal connects to the third switching element, which has an output terminal connected to a second wire. The first wires and the second wires are connected in a pixel. | 04-18-2013 |
20130129384 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a first frame that supports a photosensitive member, a second frame that supports a developing roller, and a connecting bracket in which a fixed supporter couples to a side portion of the first frame, a flexible supporter that couples to a side portion of the second frame, and an elastic arm connecting the fixed supporter and the flexible supporter to each other to provide an elastic force that may elastically bias the developing roller toward the photosensitive member, are integrally formed. | 05-23-2013 |
20130129385 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a photosensitive drum, a charging roller to rotate while contacting the photosensitive drum to charge a surface of the photosensitive drum to a uniform potential, and a separating member to rotate between a first position where the charging roller is separated from the photosensitive drum and a second position where the charging roller contacts the photosensitive drum. The separating member includes a body into which a rotary shaft of the charging roller is inserted to be rotatable, and a contact portion extending from the body and contacting the surface of the photosensitive drum when the separating member is located at the first position so as to separate the charging roller from the photosensitive drum, wherein the contact portion includes a friction member including rubber. | 05-23-2013 |
20130149814 | THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A thin film transistor substrate according to an embodiment of the present invention includes: an insulation substrate; a gate line formed on the insulation substrate; a first interlayer insulating layer formed on the gate line; a data line and a gate electrode formed on the first interlayer insulating layer; a gate insulating layer formed on the data line and gate electrode; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; a second interlayer insulating layer formed on the semiconductor; a first connection formed on the second interlayer insulating layer and electrically connecting the gate line and the gate electrode to each other; a drain electrode connected to the semiconductor; a pixel electrode connected to the drain electrode; and a second connection connecting the data line and the semiconductor to each other. | 06-13-2013 |
20130156471 | IMAGE FORMING APPARATUS, AND DEVELOPING DEVICE AND DEVELOPING UNIT THEREOF - An image forming apparatus includes developing units designed to have an appropriate developer storage capacity in consideration of developer consumption, and improved convenience of use. The image forming apparatus also includes an image carrier, and plural developing units arranged along a rotating direction of the image carrier to supply developers to the image carrier. The plural developing units include a first developing unit having the largest developer storage capacity and a second developing unit having the second largest developer storage capacity after the first developing unit. | 06-20-2013 |
20130195530 | DEVELOPER AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developer of an image-forming apparatus includes a photoconductor, a housing comprising a waste toner container in which waste toner removed from the photoconductor is contained, and a recessed portion depressed downwardly in a center portion of an upper wall of the waste toner container, the center portion corresponding to a center portion of the photoconductor in a lengthwise direction to move toner away from the center portion. | 08-01-2013 |
20130259523 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS HAVING THE SAME - A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position. | 10-03-2013 |
20140036211 | LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF - Exemplary embodiments of the present invention disclose a liquid crystal display (LCD) and a method of manufacturing the same. The LCD may have a display area and a peripheral area. An organic layer of the peripheral area may be patterned using a half-tone mask, and a protrusion member may be formed in the peripheral area. Accordingly, the thin film transistor array panel and the corresponding substrate may be prevented from being temporary adhered in the peripheral area such that the density of the liquid crystal molecules filled in the peripheral area may be uniformly maintained and the display quality of the liquid crystal display may be improved. | 02-06-2014 |
20140055698 | MOTHER SUBSTRATE FOR DISPLAY DEVICE, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR MANUFACTURING DISPLAY DEVICE - A mother substrate for a display device includes: a first mother substrate and a second mother substrate including a plurality of panel regions and facing each other; a first contact electrode and a second contact electrode on the first mother substrate; a common electrode, a first voltage application electrode and a second voltage application electrode separated from each other and on the second mother substrate; and a liquid crystal layer between the first mother substrate and the second mother substrate. The first voltage application electrode is connected to the first contact electrode, and the second voltage application electrode is connected to the second contact electrode. The first voltage application electrode is applied with a first voltage, and the second voltage application electrode is applied with a second voltage different from the first voltage. | 02-27-2014 |
20140133882 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes a housing containing toner having an opening at a side thereof, a developing roller supplying the toner supplied through the opening to a photoconductive drum, and a regulator contacting the outer circumference of the developing roller to regulate the amount of the toner supplied to the photoconductive drum. The housing also includes a lower frame having both side portions and a lower end portion respectively forming both edges and a lower edge of the opening in a lengthwise direction, and an upper frame welded and coupled to the lower frame and including a leading end portion forming an upper edge of the opening and a recess portion recessed from the leading end portion at both end portions of the leading end portion in the lengthwise direction. Both side portions of the lower frame includes a first surface contacting the recess portion to prevent the upper frame from being pushed toward the developing roller when the upper frame is welded and coupled to the lower frame. | 05-15-2014 |
20150053984 | THIN FILM TRANSISTOR SUBSTRATE AND THE METHOD THEREOF - A thin film transistor array panel includes a gate line, a gate insulating layer that covers the gate line, a semiconductor layer that is disposed on the gate insulating layer, a data line and drain electrode that are disposed on the semiconductor layer, a passivation layer that covers the data line and drain electrode and has a contact hole that exposes a portion of the drain electrode, and a pixel electrode that is electrically connected to the drain electrode through the contact hole. The data line and drain electrode each have a double layer that includes a lower layer of titanium and an upper layer of copper, and the lower layer is wider than the upper layer, and the lower layer has a region that is exposed. The gate insulating layer may have a step shape. | 02-26-2015 |