Multilayer Electrodes Patents (Class 349/147)
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Publication number: 20100123846Abstract: A display substrate includes a pixel, a first pad part and a second pad part. The pixel is disposed in a display area and includes a switching element connected to a gate line and a data line and a pixel electrode electrically connected to the switching element. The first pad part is disposed in a peripheral area outside the display area. The first pad part includes a first pad having a first conductive pattern formed from a first conductive layer, a second conductive pattern overlapped with the first conductive pattern and formed from a second conductive layer and an insulation layer disposed between the first and second conductive patterns. The second pad part is disposed in the peripheral area. The second pad part includes a second pad having a third conductive pattern connected to the first conductive pattern of the first pad.Type: ApplicationFiled: October 28, 2009Publication date: May 20, 2010Inventors: Young-Kwang Kim, Hyun-Uk Oh
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Publication number: 20100110320Abstract: The present invention provides a display device substrate, a display device, and a wiring substrate, each permitting more flexible wiring design and a reduction in area of wirings with suppressing wiring defects. The present invention is a display device substrate including, on a main surface of a substrate, a structure of alternating layers of: a plurality of interlayer insulating films; and three or more wiring layers, wherein the display device substrate includes a data wiring, and the data wiring is positioned in a third or higher wiring layer from a side of the substrate.Type: ApplicationFiled: December 19, 2007Publication date: May 6, 2010Inventor: Hidehito Kitakado
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Patent number: 7705947Abstract: A liquid crystal display device having a simplified manufacturing process is disclosed. The liquid crystal display device includes a gate line and a common line having a first conductive layer group having at least double conductive layers. A common electrode is formed by an extension of at least one transparent conductive layer of a common line. A portion of the common electrode is formed of one conductive layer of the first conductive layer group, while a remaining portion of the common electrode is formed of the first conductive layer group. The gate line, a source electrode and a drain electrode have a second conductive layer group having at least double conductive layers, and the pixel electrode is formed by an extension of at least one transparent conductive layer of the drain electrode.Type: GrantFiled: December 20, 2005Date of Patent: April 27, 2010Assignee: LG Display Co., Ltd.Inventors: Byung Chul Ahn, Joo Soo Lim, Byung Ho Park
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Patent number: 7705944Abstract: A method of fabricating a liquid crystal display device includes in a first mask process, forming a first mask pattern group including a gate line, a gate electrode connected to the gate line and a common line parallel to the gate line that have a first conductive layer group structure having at least double conductive layers. A second mask process forms a gate insulating film on the first mask pattern group and a semiconductor pattern thereon. A third mask process forms a third mask pattern group including a data line, a source electrode connected to the data line and a drain electrode opposite the source electrode that have a second conductive layer group structure having at least double conductive layers, and a protective film interfacing with the third mask pattern group on the gate insulating film.Type: GrantFiled: December 20, 2005Date of Patent: April 27, 2010Assignee: LG Display Co., Ltd.Inventors: Byung Chul Ahn, Joo Soo Lim, Byung Ho Park
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Publication number: 20100097559Abstract: In a simple matrix vertical alignment mode liquid crystal display device including first and second substrates opposing each other, a first electrode layer including a plurality of first electrodes provided at an inner side of the first substrate, a second electrode layer including a plurality of second electrodes provided at an inner side of the second substrate, and a vertical alignment mode liquid crystal layer provided between the first and second substrates, a plurality of linear wall layers are provided between the first and second substrates in parallel with the first electrodes.Type: ApplicationFiled: October 1, 2009Publication date: April 22, 2010Applicant: Stanley Electric Co., Ltd.Inventor: Masatoshi HORII
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Patent number: 7701524Abstract: A method for fabricating an LCD device includes providing a substrate; forming an active pattern having a source region, a drain region and a channel region on the substrate; forming a first insulation film on the substrate; forming a gate electrode, a gate line and a pixel electrode on the substrate; forming a second insulation film on the substrate; forming a contact hole exposing a portion of the source and drain regions by removing a portion of the first and second insulation films; patterning the second insulation film on the pixel electrode at least a size corresponding to a form of the pixel electrode; and forming a source electrode electrically connected to the source region and a drain electrode electrically connected to the drain region through the contact hole.Type: GrantFiled: June 28, 2005Date of Patent: April 20, 2010Assignee: LG Display Co., Ltd.Inventors: Yong In Park, Juhn Suk Yoo
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Patent number: 7701521Abstract: An array substrate for a liquid crystal display device includes a substrate including a first driving region, a second driving region, and a pixel region, the pixel region including a switching region and a storage region; a first n-type transistor in the first driving region, a second p-type transistor in the second driving region; a third transistor in the switching region, the third transistor including a gate electrode, an active layer, a source electrode, and a drain electrode; an extension portion in the storage region and extending from the active layer; a metal pattern on the extension portion; a storage line over the metal pattern; and a pixel electrode in the pixel region and contacting the third transistor, wherein the metal pattern, the storage line and the pixel electrode form first, second and third electrodes of a storage capacitor that includes a first capacitor and a second capacitor parallel to each other.Type: GrantFiled: July 24, 2007Date of Patent: April 20, 2010Assignee: LG Display Co., Ltd.Inventor: Joon-Young Yang
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Patent number: 7692743Abstract: The transflective LCD panel has many scan lines, data lines, and common electrodes, in which each data line includes a first data line section and a second data line section, and each common electrode has at least one first common electrode section. The scan lines and the second data line sections are made of a first conductive layer; and the first data line sections and the common electrodes are made of a second conductive layer. The first common electrode sections and the corresponding pixel electrodes are overlapped, thus providing the storage capacitance.Type: GrantFiled: August 24, 2007Date of Patent: April 6, 2010Assignee: AU Optronics Corp.Inventors: Shih-Chyuan Fan Jiang, Ping-Ju Jiang, Hsiang-Lin Lin, Ching-Huan Lin, Chih-Ming Chang
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Publication number: 20100060839Abstract: Provided is a liquid crystal display device capable of significantly reducing occurrence of a failure such as an interlayer short-circuit. In the liquid crystal device, a first layer formed of a copper film having a purity of 99.5% or more and a second layer formed of an alloy film containing copper as a main component are successively formed on a glass substrate or a substrate on which a transparent conductive film containing indium is formed. The alloy film serving as the second layer is made of an alloy containing copper as a main component, which has a higher etching rate in a wet etching process compared with that of copper. Accordingly, a patterned cross-section of the copper film having a large film thickness can be etched in a tapered shape, to thereby improve coverage of an insulating film or the like laminated on a wiring pattern.Type: ApplicationFiled: August 13, 2009Publication date: March 11, 2010Inventors: Takaaki SUZUKI, Takuya TAKAHASHI
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Patent number: 7663146Abstract: An active matrix addressing LCD device having an active matrix substrate on which conductive lines are formed is provided, which suppress the AI hillock without complicating the structure of the lines and which decreases the electrical connection resistance increase at the terminals of the lines, thereby improving the connection reliability. The device comprises an active matrix substrate having a transparent, dielectric plate, thin-film transistors (TFTs) arranged on the plate, and pixel electrodes arranged on the plate. Gate electrodes of the TFTs and scan lines have a first multilevel conductive structure. Common electrodes and common lines may have the first multilevel conductive structure. Source and drain electrodes of the TFTs and signal lines may have a second multilevel conductive structures. Each of the first and second multilevel conductive structures includes a three-level TiN/Ti/Al or TiN/Al/Ti structure or a four-level TiN/Ti/AI/Ti structure.Type: GrantFiled: December 28, 2001Date of Patent: February 16, 2010Assignee: NEC LCD Technologies, Ltd.Inventors: Hiroaki Tanaka, Akira Fujita, Shigeru Kimura, Akitoshi Maeda, Takasuke Hayase
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Patent number: 7659957Abstract: A liquid crystal display (“LCD”) panel and fabricating method thereof capable of minimizing erosion of a common pad of the LCD panel are disclosed. The LCD panel includes a common electrode formed on an upper substrate and a common pad formed on a lower substrate facing the upper substrate, the common pad supplying a common voltage to the common electrode through a short point, wherein the common pad includes a lower electrode formed on the lower substrate, a first common contact hole penetrating a gate dielectric layer formed to cover the lower electrode, an intermediate electrode connected to the lower electrode through the first common contact hole, a plurality of second common contact holes penetrating an organic protection layer formed to cover the intermediate electrode, and an upper electrode connected to the intermediate electrode through the second common contact holes.Type: GrantFiled: June 19, 2007Date of Patent: February 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sun Park, Chun Gi You
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Patent number: 7656493Abstract: A multi-level mandrel is used to locate an electrode in a pixel well. A display includes an electrode recessed in a floor of a pixel well.Type: GrantFiled: July 31, 2007Date of Patent: February 2, 2010Inventors: Alan R. Arthur, Ronald A. Hellekson
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Patent number: 7656500Abstract: A liquid crystal display device and a fabricating method having a simplified process are disclosed. The liquid crystal display device compromises, among other features, first and second substrates, a gate line crossing a data line with a gate insulating film therebetween to define a pixel area. A common line is provided on the substrate substantially parallel to the gate line, and a common electrode is extended from the common line into the pixel area. A pixel electrode is extended from a drain electrode into the pixel area to form a horizontal electric field with the common electrode. The data line, a source electrode, a drain electrode and the pixel electrode are formed of a first conductive layer group having at least double conductive layers, and are formed in an area to be sealed by a sealant upon joining the first and second substrates.Type: GrantFiled: December 21, 2005Date of Patent: February 2, 2010Assignee: LG Display Co., Ltd.Inventor: Byung Chul Ahn
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Patent number: 7652740Abstract: The present invention is an array substrate for use in a liquid crystal display device, which includes a first double-layered metal structure and a second double-layered metal structure. The first double-layered metal structure includes a gate electrode, a gate line and a gate pad electrode on a substrate, wherein all of the gate electrode, the gate line and the gate pad electrode have a first barrier metal layer and a first copper layer. The second double-layered metal structure includes a data line, source and drain electrodes, a capacitor electrode, and a data pad electrode, wherein all of the data line, the source and drain electrodes, the capacitor electrode and the data pad electrode have a second barrier metal layer and a second copper layer.Type: GrantFiled: June 30, 2003Date of Patent: January 26, 2010Assignee: LG Display Co., Ltd.Inventors: Yong-Sup Hwang, Gee-Sung Chae, Gyoo-Chul Jo
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Patent number: 7646444Abstract: A TFT array panel includes an insulating substrate, a gate line and a storage electrode line formed thereon. The gate line and the storage electrode line are covered with a gate insulating layer, and a semiconductor island is formed on the gate insulating layer. A pair of ohmic contacts are formed on the semiconductor island, and a data line and a drain electrode are formed thereon. The data line and the drain electrode are covered with a passivation layer having a contact hole exposing the drain electrode. A pixel electrode is formed on the passivation layer and connected to the drain electrode through the contact hole. The TFT array panel is covered with an alignment layer rubbed approximately in a direction from the upper left corner to the lower right corner of the TFT array panel or the pixel electrodes. The pixel electrode has approximately a rectangular shape and overlaps the gate line and the data line.Type: GrantFiled: October 17, 2007Date of Patent: January 12, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Hyang-Shik Kong, Jang-Soo Kim
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Patent number: 7639335Abstract: An electro-optical device includes an electro-optical panel including a first substrate and a second substrate which interpose an electro-optical material therebetween, a transparent conductive film disposed on an outer surface of the first substrate or the second substrate, and a base member having an electrode electrically connected to the transparent conductive film via an adhesive, in which the electrode is formed at a region having a plane shape, which is the same as or narrower than that of the base member, the base member is provided with concave portions or through-holes disposed along a side thereof, and the concave portions or the through-holes are provided with the adhesive.Type: GrantFiled: March 6, 2008Date of Patent: December 29, 2009Assignee: Epson Imaging Devices CorporationInventor: Munenori Kurasawa
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Publication number: 20090310070Abstract: An electrically-floating light shielding film is formed on a glass substrate, and a signal line is formed above the light shielding film via a gate insulating film. The light shielding film is formed along the signal line, and has a width larger than that of the signal line. On an interlayer insulating film that covers the signal line, transparent electrodes of neighboring pixels are formed, and a reflective electrode extending from the transparent electrode has a frame portion disposed along the signal line. The reflective electrode is formed the interlayer insulating film. The light shielding film does not overlap the transparent electrode in a plan-view perspective and overlaps the reflective portion in a plan-view perspective. The signal line does not overlap the reflective electrode in a plan-view perspective. Hence, a semitransparent liquid crystal display device that suppresses vertical crosstalk and as well maintains a high aperture ratio is obtained.Type: ApplicationFiled: May 31, 2007Publication date: December 17, 2009Inventor: Toshiya Ishii
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Patent number: 7626668Abstract: A method for manufacturing a pixel electrode contact structure of a thin-film transistors liquid crystal display is disclosed. First, a transparent substrate having a first insulating layer thereon is provided. Afterward, a first metal layer and a second metal layer are sequentially formed on the substrate and then be patterned by a halftone technology and an etching process, wherein the second metal layer is removed within the pixel electrode contact area. In the meantime, the drain lines of the thin-film transistor comprising the first metal layer and the second metal layer are formed. Next, a patterned passivation layer is formed on the substrate. Finally, a pixel electrode layer directly connecting the first metal layers within the pixel electrode contact structure is formed on the substrate. This invention provides the pixel electrode contact structure with low contact resistance and prevents the current leakage from the drain line to the storage capacitor.Type: GrantFiled: July 25, 2005Date of Patent: December 1, 2009Assignee: Quanta Display Inc.Inventor: Wen-Yi Shyu
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Patent number: 7626665Abstract: To provide a highly conductive Cu alloy which is advantageous in that an alloying element added to Cu is first reacted with oxygen contained in a gas atmosphere or solid in contact with the Cu member to form an oxide film which can prevent oxidation of Cu. The copper alloy comprises copper (Cu) containing an inevitable impurity, and an element added to the copper, wherein the added element is capable of being dissolved in the copper in an amount of 0.1 to 20 at. %, wherein the added element has an oxide formation free energy smaller than that of Cu and has a diffusion coefficient in Cu larger than the self-diffusion coefficient of Cu.Type: GrantFiled: August 30, 2005Date of Patent: December 1, 2009Assignees: Tohoku University, Advanced Interconnect Materials LLCInventor: Junichi Koike
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Publication number: 20090290116Abstract: The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide.Type: ApplicationFiled: May 29, 2009Publication date: November 26, 2009Applicants: Tohoku University, Advanced Interconnect Materials, LLCInventors: Junichi Koike, Hideaki Kawakami
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Patent number: 7619713Abstract: The present invention is directed to the provision of a liquid crystal optical element that is inexpensive, has an ideal refractive index profile, and functions as a high-performance gradient-index lens.Type: GrantFiled: November 21, 2005Date of Patent: November 17, 2009Assignee: Citizen Holdings Co., Inc.Inventor: Nobuyuki Hashimoto
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Publication number: 20090268145Abstract: An IPS type liquid crystal display device capable of preventing a blanking phenomenon generated to the periphery of a screen caused by charging at the inside of a counter substrate due to the effect of a gate voltage applied to scanning line leads. In a pixel area A constituting a display region, a pixel electrode is disposed by way of an insulative film above a common electrode formed in a planar shape. In a scanning line lead area, the scanning line leads have first scanning line leads and second scanning lines formed in different layers for decreasing the width of the scanning line lead area. The scanning line leads are covered with a shield electrode formed coplanar with the common electrode. Since the shield electrode is extended as far as a portion below a sealant, the shielding effect is enhanced. Further, since the insulative film is present between the sealant and the shield electrode, the sealing effect is not deteriorated.Type: ApplicationFiled: April 28, 2009Publication date: October 29, 2009Inventors: Kenji Anjo, Takahiro Nagami, Kenichi Hatakeyama
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Patent number: 7609349Abstract: An IPS mode LCD device and a method for fabricating the same are disclosed. A switching device is formed at each unit pixel and then a passivation layer is formed thereon. A first concave pattern and a second concave pattern at each unit pixel by using one mask are formed, and a common electrode is formed in the first concave pattern and a pixel electrode is formed in the second concave pattern. Accordingly, the entire fabrication process is simplified.Type: GrantFiled: December 30, 2005Date of Patent: October 27, 2009Assignee: LG Display Co., Ltd.Inventors: Joon-Young Yang, Jung-Il Lee
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Patent number: 7599032Abstract: A liquid crystal display (LCD) device includes a unit pixel defined by a gate line formed on a substrate and a data line crossing the gate line, a switching device formed in the unit pixel, a common electrode line formed parallel to the gate line, the common electrode line including a first transparent electrode layer and a first conductive layer, a common electrode having a conductive portion and a light transmitting portion formed within the unit pixel and connected to the common electrode line, the conductive portion formed along a periphery of the common electrode including a second transparent electrode layer and a second conductive layer, and the light transmitting portion including a third transparent electrode layer disposed in a middle portion of the common electrode includes a third transparent electrode layer, and a pixel electrode having a slit region arranged to face the common electrode.Type: GrantFiled: December 19, 2005Date of Patent: October 6, 2009Assignee: LG Display Co., Ltd.Inventors: Sung-Soo Chang, Woo-Hyun Kim, In-Seob Kim, Dong-Hoon Lee
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Patent number: 7599037Abstract: A method of fabricating a thin film transistor array panel for a liquid crystal display is provided. A gate line assembly is formed on an insulating substrate. The gate line assembly includes gate lines and gate electrodes connected to the gate lines. A gate insulating layer is formed on the insulating substrate having the gate line assembly. A semiconductor layer is formed on the gate insulating layer. A data line assembly is formed, the data line assembly includes data lines crossing over the gate lines, source electrodes connected to the data lines and placed adjacent to the gate electrodes, and drain electrodes placed opposite to the source electrodes with respect to the gate electrodes. A protective layer is deposited onto the insulating substrate having the data line assembly. The protective layer is patterned to form first contact holes exposing the drain electrodes.Type: GrantFiled: July 21, 2004Date of Patent: October 6, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jean-Ho Song, Chang-Oh Jeong
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Publication number: 20090243985Abstract: A thin film transistor array panel is provided, which includes: a display cell array circuit including a plurality of gate lines, a plurality of data lines, a plurality of thin film transistors, and a plurality of pixel electrodes; a gate driving circuit supplying gate signals to the gate lines; and a signal line connected to the gate driving circuit and including first and second line segments separated from each other and a connection member connected to the first and second line segments through at least a contact hole exposing at least one of the first and the second line segments.Type: ApplicationFiled: March 19, 2009Publication date: October 1, 2009Inventors: Myung-Jae Park, Hyang-Shik Kong, Myung-Koo Hur, Jong-Woong Chang, Seong-Young Lee, Dong-Gyu Kim
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Patent number: 7589703Abstract: A liquid-crystal display wherein each color sub-pixel is divided into at least a first region and a second region, each region having a pair of electrodes and a storage capacitor. The lower electrode in each region is connected to the same gate line via a different TFT. The upper electrode in each region is connected to a different common line to receive a different voltage signal. Each of the voltage signals comprises a common component and a different signal component. The different signal components are periodical in a “swing” fashion. These signals are in-sync with each other but with different polarity. When the sub-pixel is divided into three regions, the voltage signal in the third common line is equal to the common component. When suitable swing signals in positive frames and negative frames are applied to the regions in sub-pixels, different pixel inversion effects can be achieved.Type: GrantFiled: April 17, 2006Date of Patent: September 15, 2009Assignee: AU Optronics CorporationInventor: Jenn-Jia Su
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Patent number: 7586664Abstract: An electrochromic switchable transparency, e.g. a window and/or a mirror includes an electrochromic switchable medium between a pair of electrode assemblies. At least one of the electrode assemblies is transparent to visible light and includes an electrode over a surface. In one nonlimiting embodiment of the invention, the electrode has two electrically conducting layers and a bridging layer between and interconnecting the two electrically conducting layers. In one nonlimiting embodiment, the bridging layer includes a high electrically resistance connecting layer to provide the electrode with a heating layer to heat the surface and/or a current conducting layer to pass current to the medium. In another nonlimiting embodiment, the bridging layer includes an electrically connecting layer to pass current to electrically enhance the first electrically conductive layer.Type: GrantFiled: June 22, 2006Date of Patent: September 8, 2009Assignee: PPG Industries Ohio, Inc.Inventor: Dennis J. O'Shaughnessy
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Patent number: 7583347Abstract: A liquid crystal display including: a liquid crystal panel including an array substrate having an upper surface on which a common electrode and a pixel electrode are formed, an opposing substrate disposed so as to be opposite to the upper surface and a liquid crystal layer disposed between the array substrate and the opposing substrate, and a reflecting face. The liquid crystal display is further characterized in that at least one electrode of the common electrode and the pixel electrode is constituted by an electrode portion and a wiring portion, the electrode portion is at least partially constituted by a transparent electric conductor, the electrode portion is formed in a layer separated by an insulating layer from a layer in which the scanning signal line is formed, and the wiring portion is formed in the layer in which the scanning signal line is formed.Type: GrantFiled: November 1, 2006Date of Patent: September 1, 2009Assignee: Panasonic CorporationInventors: Akinori Shiota, Hiroyuki Yamakita, Shinji Ogawa
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Publication number: 20090213310Abstract: A manufacturing method of a transflective LCD comprising forming a multiple layer on a substrate by depositing transparent electrode layer and a gate metal layer sequentially, forming a gate line, a gate electrode, a gate pad forming part and a data pad forming part by patterning the multiple layer, forming a gate insulating layer, forming a semiconductor layer, forming a data line, a source electrode and a drain electrode, forming a passivation layer and an organic insulating layer and forming a gate pad and a data pad by providing contact holes exposing the transparent electrode layer on the gate pad forming part and the data pad forming part, respectively. Accordingly, it is an aspect of the present invention to provide a manufacturing method of a transflective LCD using less masks and a transflective LCD thereof.Type: ApplicationFiled: April 29, 2009Publication date: August 27, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-ho YANG, Jun-ho SONG
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Publication number: 20090207366Abstract: A liquid crystal display (LCD) has pixels with large effective aperture ratios. The LCD includes: a first insulating film formed over the gate line and the common electrode; a data line formed over the first insulating film, the data line crossing over the gate line, the data line being bent in a zigzag manner; a second insulating film formed over the data line; a pixel electrode formed over the second insulating film and comprising a plurality of subpixel electrodes substantially parallel to the data line, the pixel electrode comprising a connecting electrode interconnecting the subpixel electrodes; a shielding electrode formed over the second insulating film to overlie the data line; and a liquid crystal layer.Type: ApplicationFiled: February 17, 2009Publication date: August 20, 2009Inventor: Dong-Gyu KIM
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Publication number: 20090190082Abstract: A display substrate includes a first switching element, a second switching element, a first pixel electrode, a second pixel electrode, a main storage electrode and a sub-storage electrode. The first switching element is connected to a data line and a first gate line. The second switching element is connected to the data line and a second gate line adjacent to the first gate line. The first pixel electrode is electrically connected to the first switching element. The second pixel electrode is electrically connected to the second switching element. The main storage electrode is disposed in an area between the first pixel electrode and the second electrode to overlap with first ends of the first and second pixel electrodes. The sub-storage electrode is spaced apart from the first and second gate lines.Type: ApplicationFiled: July 29, 2008Publication date: July 30, 2009Inventors: Hong-Woo Lee, Jong-Oh Kim, Sung-Man Kim, Sun-Kyu Joo, Bong-Jun Lee, Jae-Min Shin
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Patent number: 7567308Abstract: A liquid crystal display apparatus has a transparent substrate having a transparent common electrode formed thereon; an active matrix substrate having pixels with reflective pixel electrodes, the pixels being formed in column and row directions on the matrix substrate in a matrix fashion, each pixel having a switching transistor with a gate, a drain and a source, and a signal-charging capacitor; a liquid crystal layer provided between the common electrode and the pixel electrode; a column-signal electrode driver and a row-scanning electrode driver for activating the matrix substrate; column-signal electrodes connected to the column-signal electrode driver, the gate being connected to each column-signal electrode; and row-scanning electrodes connected to the row-scanning electrode driver, the drain being connected to each row-scanning electrode, each pixel electrode being provided at an intersection of each column-signal electrode and each row-scanning electrode, each pixel electrode and the capacitor being coType: GrantFiled: November 23, 2005Date of Patent: July 28, 2009Assignee: Victor Company of Japan, Ltd.Inventor: Masato Furuya
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Publication number: 20090185126Abstract: Provided are a metal line, a method of forming the same, and a display using the same. To increase resistance of a metal line having a multilayered structure of CuO/Cu and prevent blister formation, a plasma treatment is performed using a nitrogen-containing gas and a silicon-containing gas or using a hydrogen or argon as and the silicon-containing gas. Accordingly, a plasma treatment layer such as a SiNx or Si layer is thinly formed on the copper layer, thereby preventing an increase in resistance of the copper layer and also preventing blister formation caused by the damage of a copper oxide layer. Consequently, it is possible to improve the reliability of a copper line and thus enhance the reliability of a device.Type: ApplicationFiled: December 10, 2008Publication date: July 23, 2009Inventors: Sung Ryul Kim, Yong-Mo Choi, Sung-Hoon Yang, Hwa-Yeul Oh, Kap-Soo Yoon, Jae-Ho Choi, Seong-Hun Kim
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Patent number: 7564531Abstract: An active matrix substrate or TFT substrate is provided with a lower layer wiring with a groove wiring structure covering surroundings of a copper layer with a barrier metal film is formed by forming a groove at an insulating substrate and depositing the barrier metal film and the copper layer in this groove. This groove wiring structure is used for a TFT substrate of a liquid crystal display (LCD) device. It is possible to manufacture an LCD device with large size, high density, a large aperture ratio and in which the disclination defects originating from a different in level of the lower layer wiring and an occurrence of disconnection failures in an upper layer wiring are suppressed.Type: GrantFiled: March 15, 2006Date of Patent: July 21, 2009Assignee: NEC LCD Technologies, Ltd.Inventors: Kyounei Yasuda, Seiji Suzuki
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Patent number: 7564529Abstract: A thin film transistor substrate of fringe field switching type and a fabricating method thereof for simplifying a process are disclosed. In the thin film transistor substrate of fringe field switching type, a gate line has a multiple-layer structure and includes a transparent conductive layer. A data line crosses the gate line to define a pixel area. A thin film transistor is connected to the gate line and the data line. A common line is provided in a multiple-layer structure and in parallel to the gate line. A common electrode is formed by an extension of a transparent conductive layer of the common line at said pixel area. A pixel electrode is connected to the thin film transistor to form a fringe field with the common electrode in the pixel area.Type: GrantFiled: December 21, 2005Date of Patent: July 21, 2009Assignee: LG Display Co., Ltd.Inventor: Byung Chul Ahn
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Patent number: 7548282Abstract: A display substrate includes a substrate, a first capacitor electrode, a dielectric layer, a second capacitor electrode, and a transparent conductive electrode. The substrate includes an effective display region and a non-effective display region that surrounds the effective display region. The first capacitor electrode is in the non-effective display region. The dielectric layer is on the first capacitor electrode. The second capacitor electrode is on the dielectric layer corresponding to the first capacitor electrode. The transparent conductive electrode is positioned substantially in the effective display region. Therefore, the number of elements is decreased so that a size and a manufacturing cost of a display device are reduced.Type: GrantFiled: June 30, 2006Date of Patent: June 16, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Ho Yang
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Publication number: 20090147203Abstract: A first metal layer of aluminum or an aluminum alloy is formed on a second interlayer insulating layer, and a second metal layer of silver or a silver alloy, which is patterned in the same pattern as the first metal layer, is formed on the first metal layer. The first metal layer and the second metal layer constitute wirings. The wirings are patterned in such a way as to overlie the gate lines and data lines of associated TFTs, and are laid out in such a way as to cover the TFTs.Type: ApplicationFiled: February 5, 2009Publication date: June 11, 2009Applicant: NEC CORPORATIONInventor: Yoshinori TOMIHARI
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Patent number: 7545471Abstract: An exemplary liquid crystal display includes a first glass layer (210) and a second glass layer (220) opposite to each other, a liquid crystal layer (27) interposed between the first and second glass layers, at least one alignment layer (224 and/or 414) disposed between the first and second glass layers, a plurality of common electrodes (225) arranged on the second glass layer, an insulation layer (227) arranged on the second glass layer, a plurality of pixel electrodes (226) arranged on the insulation layer, a first transparent conductive film (250) arranged on each of the common electrodes, and a second transparent conductive film (260) arranged on each of the pixel electrodes. A distance separating the common electrodes and the liquid crystal layer is equal to that separating the pixel electrodes and the liquid crystal layer. The liquid crystal display can avoid the occurrence of image delay.Type: GrantFiled: December 23, 2005Date of Patent: June 9, 2009Assignee: Innolux Display Corp.Inventors: Chueh-Ju Chen, Jia-Pang Pang
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Patent number: 7545463Abstract: A liquid crystal display structure is provided. The liquid crystal display structure includes a gate line and a data line crossing each other on a substrate to define a pixel region, a thin film transistor connected to the gate line and the data line, a color filter pattern in the pixel region, and a pixel electrode in the pixel region. The pixel electrode is above the color filter pattern and is a stack structure including a transparent layer, an opaque layer and a low reflective layer.Type: GrantFiled: June 29, 2005Date of Patent: June 9, 2009Assignee: LG Display Co., Ltd.Inventor: Seung-Ryull Park
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Patent number: 7545474Abstract: A manufacturing method of a transflective LCD comprising forming a multiple layer on a substrate by depositing transparent electrode layer and a gate metal layer sequentially, forming a gate line, a gate electrode, a gate pad forming part and a data pad forming part by patterning the multiple layer, forming a gate insulating layer, forming a semiconductor layer, forming a data line, a source electrode and a drain electrode, forming a passivation layer and an organic insulating layer and forming a gate pad and a data pad by providing contact holes exposing the transparent electrode layer on the gate pad forming part and the data pad forming part, respectively. Accordingly, it is an aspect of the present invention to provide a manufacturing method of a transflective LCD using less masks and a transflective LCD thereof.Type: GrantFiled: March 18, 2005Date of Patent: June 9, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-ho Yang, Jun-ho Song
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Patent number: 7545464Abstract: A liquid crystal display device has: a substrate; a switching element disposed at a side of the upper surface of the substrate and including a lower electrode and an upper electrode having a stacked structure of a plurality of metallic layers; a transparent pixel electrode disposed at the side of the upper surface of the substrate and connected to the upper electrode of the switching element; and a reflective plate formed on the upper surface of the pixel electrode so as to expose a part of the pixel electrode and having the same stacked structure as the upper electrode, including layers each made of the same material as the corresponding metallic layer in the upper electrode.Type: GrantFiled: November 29, 2006Date of Patent: June 9, 2009Assignee: Casio Computer Co., Ltd.Inventors: Hiromitsu Ishii, Shigeru Morikawa, Yayoi Nakamura
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Patent number: 7538846Abstract: Sub picture element electrodes made of ITO are formed in a picture element region which is sectioned by gate bus lines and data bus lines. These sub picture element electrodes are electrically connected to each other with a wiring connection. This wiring connection includes a metal connection portion which is formed simultaneously with the data bus lines and the like, and an ITO connection portion which is formed simultaneously with the sub picture element electrodes.Type: GrantFiled: March 14, 2006Date of Patent: May 26, 2009Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Yasutoshi Tasaka, Hideaki Tsuda, Yohei Nakanishi, Tsuyoshi Kamada, Kazuya Ueda
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Patent number: 7528918Abstract: A fringe field switching type thin film transistor substrate includes a double layered structure gate line; a data line crossing the gate line, wherein a gate insulating film is formed therebetween; a thin film transistor having a gate electrode connected to the gate line, a source electrode connected to the data line, and a drain electrode opposing the source electrode; a double layered structure common line parallel to the gate line; a common electrode plate integrated with the transparent conductive layer of the common line and formed in a pixel area defined by the crossing of the gate line and the data line; a pixel electrode slit covering the drain electrode of the thin film transistor and overlapping the common electrode plate, wherein the gate insulating film is formed therebetween in the pixel area; and a data protection pattern covering the data line and the source electrode.Type: GrantFiled: October 24, 2005Date of Patent: May 5, 2009Assignee: LG Display Co., Ltd.Inventors: Soon Sung Yoo, Youn Gyoung Chang, Heung Lyul Cho
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Patent number: 7528909Abstract: A method of fabricating a LCD device includes forming a gate line, a gate electrode, and a pixel electrode having a double-layer structure on a first substrate using a first mask, the double-layer structure including first and second conductive layers; forming a first insulation film, a semiconductor pattern on the first insulation film, a source/drain pattern having an upper storage electrode, source and drain electrodes, a data line using a second mask, the data and gate lines defining a pixel region having transmission and reflection areas; forming a second insulation film on the source/drain pattern and a transmission hole by passing through the second insulation film to the second conductive layer in the transmission area using a third mask; and forming a reflective electrode in the reflection area using a fourth mask, the reflective electrode connecting the pixel electrode with the drain electrode and the storage electrode.Type: GrantFiled: May 31, 2005Date of Patent: May 5, 2009Assignee: LG Display Co., Ltd.Inventors: Byung Chul Ahn, Jong Woo Park
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Patent number: 7522224Abstract: An array substrate of a liquid crystal device has a plurality of gate lines, data lines, pixel areas, and thin film transistors, wherein the gate lines are formed from a material of a first and second metal layer, and wherein the first metal layer of the gate line is extended on the pixel area. Also, a display device has first and second gate lines and a data line on a substrate, a thin film transistor, a pixel electrode, a first storage electrodes extending from the second gate line and wherein at least one of the first and second gate lines and the data line includes first and second line layers respectively formed of an oxidized metal later and a metal layer.Type: GrantFiled: April 16, 2007Date of Patent: April 21, 2009Assignee: LG Display Co., Ltd.Inventors: Kwang Jo Hwang, Woo Hyun Kim, Se Jung Kim
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Publication number: 20090096979Abstract: A liquid crystal display includes a pair of transparent substrates opposed to each other with liquid crystal therebetween, one of the pair of transparent substrates having a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel areas defined by the drain signal lines and the gate signal lines. The pixel areas includes a pixel electrode formed of a transparent electrode having a plurality of slits including a slit opened in a first direction and a slit opened in a second direction, and a counter electrode formed of a transparent electrode disposed between the transparent electrode of the pixel electrode having the plurality of slits and the one substrate.Type: ApplicationFiled: December 10, 2008Publication date: April 16, 2009Inventors: Kikuo ONO, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Patent number: 7504661Abstract: A thin film transistor substrate and method of fabrication is presented. The thin film transistor includes gate and data lines forming a pixel area and separated by a gate insulating layer on a LCD substrate. A thin film transistor in the pixel area has a semiconductor pattern which forms a channel. A pixel electrode in the pixel area contains a transparent conductive film. A gate metal film is adjacent to a portion of transparent conductive film in the pixel area. A semiconductor passivation film is formed by exposing the semiconductor in the channel to an oxygen or nitrogen plasma. A gate pad connected with the gate line contains the transparent film in a pad section and the transparent film and the gate film in a connection area connecting the gate pad and the gate line. A data pad connected with the data line contains the transparent film.Type: GrantFiled: December 28, 2005Date of Patent: March 17, 2009Assignee: LG. Display Co., Ltd.Inventor: Tae Yong Jung
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Publication number: 20090066893Abstract: A pixel structure disposed on a substrate and electrically connected to two scan lines and a data line is provided. The pixel structure includes a reflective electrode, a first transparent electrode, a second transparent electrode and a semiconductor layer. The first transparent electrode is electrically connected to the reflective electrode and is insulated from the second transparent electrode.Type: ApplicationFiled: December 4, 2007Publication date: March 12, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Meng-Chang Tsai, Tsung-Chin Cheng, Chih-Jen Hu
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Patent number: 7492432Abstract: A thin film transistor substrate of a poly-silicon liquid crystal display device and a simplified method of fabricating the same are disclosed. A liquid crystal display device according to the present invention includes a gate line and a data line connected to a thin film transistor; a gate pad connected to the gate line and a data pad connected to the data line, the data pad having the same cross-sectional structure as the gate pad; and a data link extended from the data pad and connected to the data line via a first contact hole, wherein the data line and the first contact hole are formed inside an area sealed by a sealant.Type: GrantFiled: June 27, 2005Date of Patent: February 17, 2009Assignee: LG Display Co., Ltd.Inventors: Yong In Park, Juhn Suk Yoo