Defect Correction Or Compensation Patents (Class 349/192)
  • Patent number: 7355659
    Abstract: A display device includes a substrate, a display area and a peripheral area formed on the substrate, a plurality of signal lines and a plurality of scan lines arranged in the display area, and six signal line common lines provided in said peripheral area. Each signal line common line of the six signal line common lines is connected every six signal lines. At least two scan line common lines are provided in the peripheral area, and each scan line common line of at least two scan line common lines is connected every predetermined of scan lines.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: April 8, 2008
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Kimitoshi Ohgiichi, Ryouichi Ootsu, Kazushi Miyata, Shinichi Tsuruoka, Susumu Niwa
  • Patent number: 7352432
    Abstract: A slit portion is provided at the center of a shield common electrode which is overlapped with a drain wire as a different layer. When an interlayer short-circuiting occurs between the drain wire and the shield common electrode, it induces a critical defect on a screen display, however, a line defect can be repaired/extinguished by cutting both the sides of the slit at the short-circuited portion with laser repair and separating the short-circuited portion.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: April 1, 2008
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Shinji Yokogawa, Yusuki Nogami
  • Publication number: 20080049162
    Abstract: A fixing structure fixes a liquid crystal panel. The liquid crystal panel is disposed on a backlight module, comprising at least one seal element disposed on edges of the liquid crystal panel, comprising a first transparent substrate, a second transparent substrate, an active circuit array, a liquid crystal layer, and seal elements. The active circuit array, the liquid crystal layer and the seal elements are disposed between the first transparent substrate and the second transparent substrate. The second transparent substrate corresponds to the backlight module. The fixing structure comprises a frame and elastic elements. The elastic elements are adhered to a lower surface of the frame. The elastic elements are sandwiched between the frame and the first transparent substrate. The elastic elements contact the first transparent substrate in positions above the seal elements.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 28, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Chang-Ho Shen, Hui-Kai Chou, Kuang-Chou Lai
  • Publication number: 20080024693
    Abstract: The present invention provides a liquid crystal display (“LCD”), a method of manufacturing the same, and a method of repairing the same capable of obtaining a wide viewing angle and improving a success ratio of repair. The LCD includes a gate line, a first data line intersecting the gate line, a thin film transistor (“TFT”) connected with the gate line and the first data line, a pixel electrode connected with the TFT, a first conductive pattern partially overlapping with a first end of the pixel electrode, a second conductive pattern partially overlapping with a second end of the pixel electrode, and a storage capacitor, wherein at least one of the first conductive pattern and the second conductive pattern partially overlaps with the first data line adjacent to the first end of the pixel electrode and a second data line adjacent to the second end of the pixel electrode, respectively.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 31, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Hyuk Lee, Beom-Jun Kim, Sung-Man Kim, Bong-Jun Lee, Shin-Tack Kang, Hyeong-Jun Park, Yu-Jin Kim, Jong-Hwan Lee, Myung-Koo Hur, Jong-Oh Kim, Hong-Woo Lee
  • Patent number: 7319504
    Abstract: A method of repairing an LCD panel having a mura defect is disclosed. The closed seal pattern of the LCD panel has a shape of frame with at least one jut portion directing to a peripheral side of the two substrates. Thus, when a mura defect occurs, a peripheral portion on one side of the two substrates is cut off, wherein the cutting passes across the jut portion of the closed seal pattern to form an opening with respect to the sealed region. An extra amount of liquid crystal can be pressed out through the opening. Then the opening is sealed using a sealant, such that the LCD panel having a mura defect is repaired.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: January 15, 2008
    Assignee: HannStar Display Corp.
    Inventors: Hsiang-Lung Liu, Kei-Hsiung Yang, Hsu-Ho Wu
  • Patent number: 7314403
    Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: January 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Ji-Heum Uh, Sang-Sun Shin
  • Patent number: 7310128
    Abstract: The present invention provides a manufacturing line of a liquid crystal display device and fabricating method thereof, by which domain failure (alignment failure) can be previously repaired by a mother substrate unit by adding a step of cooling a thermoset substrate rapidly prior to cutting. The present invention includes a vacuum alignment equipment assembling a first mother substrate having either liquid crystals dropped thereon or a sealant formed thereon and a second mother substrate having either the sealant formed thereon or the liquid crystals therein, a UV-sealant hardener performing UV-hardening on the sealant of the assembled substrates, a thermosetter thermosetting the UV-hardened substrates, a rapid cooler rapidly cooling the thermoset substrates, and a cutter cutting the rapidly cooled substrates into a plurality of unit liquid crystal display panels.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: December 18, 2007
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Sang Seok Lee, Myoung Gu Kang, Jong Han Kim, Heung Sun Kim
  • Publication number: 20070285593
    Abstract: The present invention relates to a liquid crystal display apparatus including a plurality of gate lines; a plurality of source lines formed so as to be substantially orthogonal to the gate lines; pixel electrodes formed in a matrix form at each intersecting part of the gate line and the source line; and a TFT, including a gate electrode connected to the gate line, a source electrode connected to the source line, and a drain electrode connected to the pixel electrode, formed in accordance with each pixel electrode. The TFT according to the present invention includes a hole in at least one of either the gate electrode or the drain electrode at a position where the gate electrode and the drain electrode overlap in plan view.
    Type: Application
    Filed: May 2, 2007
    Publication date: December 13, 2007
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Shinji Yamashita
  • Publication number: 20070279575
    Abstract: A semiconductor device includes: an LCD controller configured to output a plurality of image signals in parallel; a plurality of signal lines respectively corresponding to the plurality of image signals to be outputted in parallel; a plurality of terminal portions respectively connected to the plurality of signal lines; and delay circuits configured to delay a plurality of image signals, which are divided into a plurality of groups to the extent that the sum of each value of a current flowing through each signal line does not exceed a predetermined delay time from each other among the plurality of groups.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 6, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Shoji Seta
  • Patent number: 7292213
    Abstract: A method and device for repairing defective pixels of a liquid crystal display panel. First, examine the liquid crystal panel to obtain the locations of defective pixels on a liquid crystal display. Next, input a pixel signal wherein the pixel signal further comprises a pixel brightness signal used to control a pixel with a first brightness according to the pixel signal. When the pixel signal is used to be inputted to the defective pixel, the pixel brightness signal of the pixel signal will be replaced by a default brightness signal wherein the default brightness signal controls the pixel with a second brightness. Of which, the second brightness, whose level of brightness is of complete darkness for instance, is dimmer than the first brightness. At last, output pixel signals.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: November 6, 2007
    Assignee: Chi Mei Optoelectronics Corp.
    Inventor: Chien-Ching Shen
  • Patent number: 7288346
    Abstract: The main object of the present invention is to provide a production method of a color filter for producing a color filter with the defects generated in the colored layer repaired highly precisely, and a high quality color filter with the defects generated in the colored layer at the time of the production repaired, without color mixture, or the like. To achieve the object, the present invention provides a production method of a color filter, comprising a colored layer forming step for forming a colored layer by coating a colored layer forming coating solution onto a colored layer forming region on a base material made of an inorganic substance, a plasma irradiating step of irradiating a plasma to the peripheral part of an opening part of the colored layer, using a fluorine compound as an introducing gas, and a defect repairing step of repairing a defect by forming a repaired colored layer by coating the colored layer forming coating solution onto the opening part.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: October 30, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hironori Kobayashi, Kaori Yamashita, Masashi Nishiyama
  • Patent number: 7289188
    Abstract: In an array substrate and an LCD apparatus having the same, the array substrate includes a signal line, a first insulating layer formed on the signal line, and a pixel electrode formed on the first insulating layer and overlapped with the signal line. The pixel electrode is electrically connected with the signal line so as to discharge a signal through the signal line. A second insulating layer is disposed between the pixel electrode and the first insulating layer, and includes an opening formed in an overlapped area of the pixel electrode and the signal line so as to partially expose the first insulating layer. Thus, the LCD apparatus may have an enhanced display quality.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: October 30, 2007
    Assignee: Samsug Electronics Co., Ltd.
    Inventors: Yong-Ho Yang, Joo-Sun Yoon, Kyo-Seop Choo, Jin-Suk Park
  • Patent number: 7265386
    Abstract: A thin film transistor array substrate and method for repairing the same are provided. Repairing lines are formed when the data lines on the thin film transistor array substrate are defined. Furthermore, the protruding portions and branches of common lines overlap with the repairing lines and the data lines respectively. The repairing method includes performing a laser welding operation to connect the common line with the data line, the repairing line or a scan line as well as removing a portion of the lines by laser. Thus, the thin film transistor array substrate and repairing method thereof can repair line defects and increase the manufacturing yield.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: September 4, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chin-Sheng Chen, Chih-Hung Liu, Chien-Hsing Hung, Kun-Yuan Huang
  • Patent number: 7256862
    Abstract: A repairing method of a liquid crystal display panel having a gravity defect includes steps of removing the sealant outside the liquid crystal injection hole and providing a first pressure to the liquid crystal display panel. Next, a second pressure is continuously provided to the liquid crystal display panel, and the sealant in the liquid crystal injection hole is removed. Then, a third pressure is continuously provided to the liquid crystal display panel for pressing the liquid crystal out through the injection hole, and the flowed liquid crystal is cleaned out. After that, the liquid crystal injection hole is sealed with a fresh sealant and a fourth pressure is continuously provided to the liquid crystal display panel. Finally, the fresh sealant is cured and the fourth pressure is removed.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: August 14, 2007
    Assignee: HannStar Display Corp.
    Inventors: Chien-Ming Chen, Kei-Hsiung Yang
  • Patent number: 7255147
    Abstract: A bonding device for fabricating a liquid crystal display includes a vacuum chamber, an upper stage and a lower stage within the vacuum chamber, a stage moving system moving at least one of the upper and lower stages, a plurality of first observation holes formed through regions of the upper stage, a plurality of second observation holes formed through an upper portion of the vacuum chamber, each aligned to one of the plurality of first observation holes, and a plurality of alignment cameras, each camera aligned with the each of the first and second observation holes.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 14, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Sang Seok Lee, Sang Ho Park
  • Patent number: 7255811
    Abstract: Tolane compounds of the formula I wherein R1, R2, L1, L2 and L3 are as defined herein, are described. Further described are liquid-crystalline media comprising at least one tolane compound of formula I as well as liquid-crystal display elements containing such a liquid-crystalline medium.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 14, 2007
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Kevin Adlem, Patricia Saxton, Mark John Goulding, Martin Heeney
  • Publication number: 20070182914
    Abstract: A flat panel display device including a linked pixel formed of a first pixel electrically connected to a pixel adjacent to the first pixel; a memory storing the location of a panel defect area, a panel defect compensation data for compensating for a brightness difference of the panel defect area, location data describing a location of the linked pixel, charge characteristic compensation data for compensating for a charge characteristic of the linked pixel; and a compensation circuit to modulate the data to be displayed at the panel defect area using at least one of a frame rate control method and a dithering method and to modulate a charge characteristic of a digital video data to be displayed at the linked pixel based on the location data and the panel defect and charge compensation data stored in the memory.
    Type: Application
    Filed: December 8, 2006
    Publication date: August 9, 2007
    Inventor: Jong Hee Hwang
  • Patent number: 7253851
    Abstract: A pixel structure and repair method thereof. A through hole is formed in the common line. When the source/drain electrode of a thin film transistor is not electrically connected to a pixel electrode due to a polymer residue remaining in a contact hole, a first laser beam passes through the through hole to weld the source/drain electrode and the pixel electrode. The defective pixel can be thus repaired to display the original color. In addition, if the defective pixel fails due to a defective thin film transistor, the invention irradiates a second laser beam to sever the source/drain electrode such that the defective thin film transistor is not electrically connected to the pixel electrode. The defective pixel can be thus repaired to a dark point.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: August 7, 2007
    Assignee: Hannstar Display Corp.
    Inventors: Seok-Lyul Lee, Tean-Sen Jen, Ming-Tien Lin
  • Patent number: 7245332
    Abstract: A gate wire is formed on the insulating substrate. The gate wire has gate lines, first and second gate electrodes connected to the gate lines, and gate pads. A gate insulating layer, first and second semiconductor layers and an ohmic contact layer are sequentially formed thereon. A data wire is formed on the ohmic contact layer. The data wire has first and second data lines, data line connectors, first and second source electrodes, first and second drain electrodes, and data pads. A passivation layer is formed on the data wire, and has contact holes respectively exposing the first and the second drain electrodes, and the gate and the data pads. Pixel electrodes, and subsidiary gate and data pads are formed on the passivation layer. As described above, the data line is provided at opposite sides of the pixel area so that variation in the pixel voltage due to the parasitic capacitance between the partitioned areas with different degree of misalignment is reduced.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: July 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Gyu Kim
  • Publication number: 20070153226
    Abstract: An apparatus for testing a liquid crystal display (LCD) panel which is capable of easily attaching or detaching a large polarizer to/from a test board when testing a large LCD panel, the apparatus comprising a test board for outputting light to an LCD panel which is placed thereon, a polarizer fixing unit rotatably formed at the test board and having a groove in which a polarizer is inserted, and a stop formed at the test board to fix the polarizer fixing unit to a desired position.
    Type: Application
    Filed: June 30, 2006
    Publication date: July 5, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Seung-Bum Lee
  • Patent number: 7234984
    Abstract: An organic EL element of one pixel is selectively irradiated with laser light. With the laser irradiation, the functionality of the organic layer of the organic EL element is selectively degraded and the light emission capability is removed without damaging the cathode.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: June 26, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Yushi Jinno, Takashi Ogawa, Ryouzou Nagata
  • Patent number: 7209208
    Abstract: A manufacturing method of a display device, which prevents electrostatic breakdown of the display device both before and after a circuit test without reducing the productivity in forming a plurality of display devices on a substrate to be processed by a step-and-repeat exposing method. A wiring pattern group led out from signal input terminals of the display devices to the edge of the substrate to be processed is efficiently formed by exposing to light through a repetitive pattern integrated with a display device pattern. Depending on the states of the wiring pattern group as to contact or non-contact with a detachable and conductive component, the signal input terminals of the display devices can be easily switched between in a short circuited state and a non-short circuited state. Accordingly, both the measure against electrostatic breakdown and the circuit test are achieved in the display devices on the substrate to be processed.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: April 24, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tomoyuki Iwabuchi
  • Patent number: 7209194
    Abstract: A metal heat diffusion member is formed below a transparent electrode by way of an insulation film such that the metal heat diffusion member is superposed on the transparent electrode. The heat diffusion member includes a projecting portion at a portion thereof remoter than a distance between the heat diffusion member and a thin film transistor, and the heat diffusion member is superposed on the transparent electrode at the projecting portion.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 24, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masahiko Suzuki, Keiichirou Ashizawa
  • Patent number: 7199851
    Abstract: A liquid crystal display device displays images by applying an electric field substantially parallel to an insulating substrate between a pixel electrode and a common electrode placed across from each other. The liquid crystal display device has a capacitor terminal connected to the pixel electrode and placed opposite to a capacitor electrode with an insulating layer therebetween. The pixel electrode has at least two voltage supply paths to the capacitor terminal.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: April 3, 2007
    Assignee: Advanced Display Inc.
    Inventors: Shingo Nagano, Yuichi Masutani
  • Patent number: 7196766
    Abstract: In an array substrate and an LCD apparatus having the same, the array substrate includes a signal line, a first insulating layer formed on the signal line, and a pixel electrode formed on the first insulating layer and overlapped with the signal line. The pixel electrode is electrically connected with the signal line so as to discharge a signal through the signal line. A second insulating layer is disposed between the pixel electrode and the first insulating layer, and includes an opening formed in an overlapped area of the pixel electrode and the signal line so as to partially expose the first insulating layer. Thus, the LCD apparatus may have an enhanced display quality.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: March 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Ho Yang, Joo-Sun Yoon, Kyo-Seop Choo, Jin-Suk Park
  • Patent number: 7187423
    Abstract: It is an object of the invention to provide a display and a method for repairing defects of the same in which defects such as inter-layer short-circuits and short-circuits in a single that have occurred at steps for manufacturing the display can be easily repaired to provide a good product with a probability higher than that in the related art. Laser irradiation is carried out as a first cycle of laser irradiation by forming a slit S1 in a region where a drain bus line 220 completely covers a gate bus line 218 to form a cut portion longer than the width of the gate bus line 218 adjacent to an inter-layer short-circuit 290 such that it splits an intersecting portion of the drain bus line 220 into two parts as shown in FIG. 5b. Next, as shown in FIG. 5c, slits S2 and S3 are respectively used for second and third cycles of laser irradiation to cut the drain bus line 220 at both ends of the cut portion (indicated by S1), thereby isolating the inter-layer short-circuit 290 of the drain bus line 220.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: March 6, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyoshi Ozaki, Tsuyoshi Kamada, Kunio Matsubara, Shinya Katoh, Yoshihisa Taguchi, Katsushige Asada, Shogo Hayashi
  • Patent number: 7184109
    Abstract: Embodiments of the invention involve UV resistant liquid crystal cells. One embodiment of the invention is to increase the volume of the liquid crystal material that is stored inside the cell. For example, trenches may be used to provide reservoirs that hold the additional liquid crystal material. The inventive cell can be used as a SLM in photolithographic imaging systems.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: February 27, 2007
    Assignee: Agilent Technologies, Inc.
    Inventors: Charles D. Hoke, Peter R. Robrish, Rene P. Helbing, Ken A. Nishimura
  • Patent number: 7166856
    Abstract: An apparatus and method to inspect a display panel that can correctly detect a defect of the display panel itself. In the method of inspecting the display panel, a first image is captured from the display panel in a state in which no pattern is applied to the display panel. Light is then irradiated on the display panel in a state in which a pattern is applied to the display panel, and a second image is captured from the display panel. The first image can be compared with the second image, and a determination can be made as to whether or not a defect of the display panel is present.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: January 23, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sue Jin Cho, Hyung Sun You, Jang Hee Lee
  • Patent number: 7163833
    Abstract: An array test is performed during the process of panel formation, such as at a stage where a driving TFT which supplies a drive current for an organic EL element is completed and an anode of the organic EL element has been formed on the TFT. Then, with regard to a defective pixel, a line connecting the driving TFT and the anode is disconnected using a laser. After the line has been thus disconnected, a planarization insulating film is formed, and this film fills the holes caused by the laser irradiation. It is thus possible to suppress deterioration of pixels and also effectively darken a defective pixel using laser.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: January 16, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Yushi Jinno
  • Patent number: 7158195
    Abstract: A thin film transistor array panel comprises a plurality of gate lines formed on an insulating substrate; a repair line formed on the insulating substrate; a gate insulating layer formed on the gate lines and the repair line; a plurality of data lines formed on the gate insulating layer; an electricity dissipation line formed on the gate insulating layer crossing the gate lines and the repair line; and a first diode connecting the repair line and the electricity dissipation line. When static electricity is introduced through the repair lines, the static electricity is transferred to the electricity dissipation line and is dispersed or exhausted before it reaches to the data lines. As a result, the TFTs and wires in the display area are prevented from being destroyed by the static electricity.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: January 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-Woong Chang
  • Patent number: 7154568
    Abstract: The present invention relates to a static electricity prevention type liquid crystal display panel for preventing static electricity flowing in through a pad part. A static electricity prevention type liquid crystal display panel according to an embodiment of the present invention includes a picture display part having a plurality of liquid crystal cells; a signal pad part applying a drive signal to be inputted to signal lines of the picture display part, and wherein the signal pad part includes a plurality of pads connected to the signal lines; and a static electricity prevention circuit having a thin film transistor with a floating gate for connecting the pad with a shorting bar by a static electricity flowing into the pad for the pad to form an equipotential with respect to the static electricity.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: December 26, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Byeong Koo Kim, Yong Min Ha, Han Wook Hwang
  • Patent number: 7151579
    Abstract: A thin film transistor (TFT) array substrate includes a substrate, a plurality of scan lines, a plurality of data lines, a plurality of thin film transistors, a plurality of pixel electrodes, and a plurality of pairs of repair pads is provided. A plurality of pixel regions are defined by the scan lines and the data lines over the substrate. The thin film transistors are disposed in the pixel regions and driven by the scan lines and the data lines. Each pixel electrode is disposed in the region, and is electrically connected to the thin film transistor. The repair pads are disposed under the data line. In addition, the repairing process includes welding the defective data line with the quasi-welding repair pad, and then forming a repair line to reconnect the defective data line.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: December 19, 2006
    Assignee: Au Optronics Corporation
    Inventors: Han-Chung Lai, Chun-Hao Su, Wen-Chih Chen
  • Patent number: 7143493
    Abstract: A processing line for liquid crystal display fabrication. The process line reduces unnecessary processing steps by removing known defective (NG) individual liquid crystal panels before subsequent processing, with the knowledge about defects depending on stored information.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: December 5, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Ji Heum Uh, Kyung Su Chae
  • Patent number: 7142263
    Abstract: Provided is a display device featuring its capability to securely prevent static electricity from intruding into spare wiring units preset in a display panel and prevent the display device itself from becoming larger dimensionally. A plurality of terminals of signal wirings and a plurality of terminals of spare wiring units respectively linking with a tape carrier package (TCP) are disposed to an end of a TFT substrate for constituting the display panel. Each of the terminals of the spare wiring units is divided into two parts, which are arranged to be discontinuous on the halfway. An open space is formed in each of the tape carrier package so as to cause the spare wiring terminals to be exposed externally via the open space.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: November 28, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Katsunori Nagata
  • Patent number: 7126232
    Abstract: A method is described for repairing failure points, regions or locations in an electronic device to have a perfect function when a semiconductor device including an LCD of other electronic device has defects. Described is a method of transferring a single or multi-layer thin film piece into a recess with the physical properties of the thin film piece unchanged. An electronic device is described incorporating a substrate; and a plurality of thin films laminated on the substrate and part of the thin films are formed on a predetermined circuit pattern, wherein a transfer film for repairing a defect is fitted into a recess where the low layers of the thin films are exposed by removing part of a single or multi-layer thin films covering a defective portion included on the thin films and its surrounding portion.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: October 24, 2006
    Assignee: AU Optronics Corporation
    Inventors: Kazumitsu Imahara, Kakehiko Wada
  • Patent number: 7119872
    Abstract: An LCD repair method repairs gate opens in a gate line where the gate line intersects with a data line or where the gate open exists at a position where it is not overlapped by a single pixel electrode. The method includes connecting a pixel electrode overlapping a portion of the opened gate line to the gate line, and forming a metal pattern to electrically connect two adjacent pixel electrodes.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: October 10, 2006
    Assignee: LG Philips LCD Co., Ltd.
    Inventor: Woo Hyuk Choi
  • Patent number: 7116393
    Abstract: An array substrate device for a liquid crystal display device includes a substrate, a gate line extending along a first direction on the substrate, a data line extending along a second direction substantially perpendicular to the first direction on the substrate, a pixel region defined by a crossing of the gate and data lines, a common line extending along the first direction and spaced apart from the gate line, a common electrode having a plurality of first portions extended along the second direction from the common line to the pixel region, wherein the extended portion of the common electrode adjacent to the data line includes first and second extensions overlapping portions of the data line, a thin film transistor on the substrate at a crossing portion of the gate and data lines, the thin film transistor including source and drain electrodes, a pixel electrode extended from the drain electrode to the pixel region, and an auxiliary electrode connected to the extended portion of the common electrode adjacen
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: October 3, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Jae-Kyun Lee
  • Patent number: 7113252
    Abstract: A display device includes a scanning line (1) formed on an insulating substrate; a storage capacitance line (3) formed in parallel to the scanning line; an image signal line (2) formed across the scanning line (1) and the storage capacitance line (3) through an insulating layer; and a pixel electrode (6) being surrounded with the scanning line (1), the storage capacitance line (3) and the image signal line (2); wherein at least one overlapped area (11) of the storage capacitance line (3) and the image signal line (2) is defined in the area other than the crossing region of the storage capacitance line (3) and the image signal line (2) within one pixel area; whereby, breakage of the image signal line is mended without increasing the production steps, and production yield is improved.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: September 26, 2006
    Assignee: Advanced Display, Inc.
    Inventors: Katsuaki Murakami, Yasushi Matsui, Akio Nakayama
  • Patent number: 7098989
    Abstract: A liquid crystal display (LCD) element with a defect repairing function and a defect repairing method of the same. In an embodiment of the invention, a pixel is associated with a plurality of scan lines and a plurality of data lines. Along with separate spare lines, melting connection can be obtained to form a circuit path and to compensate for broken wires. A single pixel can also have a plurality of subpixels with spare conduction ports and meltable joints so that defective electrodes can be separated. The spare conduction ports can be melted and connected so that other subpixels support and compensate for the defective subpixel to minimize pixel signal loss.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 29, 2006
    Assignee: Chi-Mei Optoelectronics Corp.
    Inventor: Biing-Seng Wu
  • Patent number: 7084424
    Abstract: A process for repairing defects applied in producing a liquid crystal display, wherein the liquid crystal display includes a pixel array formed by a plurality of scanning lines crossing with a plurality of data lines. The process includes steps of providing an essential repair line located on one side of the pixel array, welding a first intersection point of a defecting data line and the essential repair line and a second intersection point of a normal data line adjacent to the defecting data line and the essential repair line by a first laser to achieve electrical connection, and cutting a first breaking point and a second breaking point of the essential repair line by a second laser to achieve a broken circuit, wherein the first and second intersection points are located two sides of a line segment constructed by the first and second intersection points respectively.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: August 1, 2006
    Assignee: Hannstar Display Corp.
    Inventors: Hong-Jye Hong, George Hsu, Chih-Wei Wang
  • Patent number: 7072005
    Abstract: The disclosure concerns an IPS LCD having a structure for changing a bright pixel to a dark pixel and a method of changing a bright pixel to a dark pixel. In the method of changing a bright pixel to a dark pixel, a pixel electrode 16 is cut at the end of an aperture 14. In the IPS LCD structure, a cut 32 is formed in a CS circuit 18 of a pixel region 12 and a laser beam is applied to the pixel electrode 16 throughout the cut 32 from a substrate side to cut the pixel electrode 16. Instead of the cut 32, a window 34 may be formed to apply a laser beam therethrough.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: July 4, 2006
    Assignee: Chi Mei Optoelectronics Corp.
    Inventors: Masataka Katoh, Wakatsuki Toru
  • Patent number: 7053976
    Abstract: With respect to a display device having a high-resolution display panel, It makes possible to prevent to deteriorate the display quality by a dot defect. A display panel having a dot defect is identified and coordinates of the defective pixel are determined. The brightnesses of pixels adjacent to the defective pixel and/or the brightnesses of pixels of other display panels having the corresponding coordinates as the dot defect are increased to reduce the apparent perceptibility of the dot defect.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: May 30, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Masaaki Hiroki
  • Patent number: 7053977
    Abstract: A laser repair structure of a LCD device obtained by extending dummy metal patterns of the LCD device is used to solve an abnormal color display. The structure includes a first electrical repair layer extending form a dummy metal to a first laser repair location; a second electrical repair layer extending form the dummy metal to a second laser repair location; a third electrical repair layer extending form a first source/drain electrode to the first laser repair location, a first dielectric layer provided between the third electrical repair layer and the first electrical repair layer; and a fourth electrical repair layer extending form a second source/drain electrode to the second laser repair location, the dielectric layer being also provided between the fourth electrical repair layer and the second electrical repair layer.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: May 30, 2006
    Assignee: Toppoly Optoelectronics Corp.
    Inventor: Shu-Hsiang Chang
  • Patent number: 7042532
    Abstract: A liquid crystal display device has a gate line formed on a substrate, and a gate insulating film deposited thereon. On the gate insulating film are provided a source line, and a conductive layer above the gate line. An insulating layer is formed thereon, and a pixel electrode is then provided. The conductive layer does not contact the source line, and at least two portions of the conductive layer are electrically connected with the gate line.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: May 9, 2006
    Assignee: Advanced Display Inc.
    Inventor: Shigeki Watamura
  • Patent number: 7042547
    Abstract: An inspection process is performed to determine defects of an electrode pattern. A first repairing process is performed to fill the pit part, and a second repairing process is performed to remove the salient part. The first repairing process utilizes a conductive paste to fill the pit part of the electrodes, and the second repairing process utilizes a laser beam to remove the salient part of the electrode pattern so that the electrodes can discharge normally.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 9, 2006
    Assignee: AU Optronics Corp.
    Inventor: Yi-Jen Wu
  • Patent number: 7038746
    Abstract: It is aimed to provide a laminated polarizing film having an antistatic function, where static electricity occurs less even if the protective film is peeled off to bond the laminated polarizing film to a liquid crystal cell, and where defects such as bright spots are not caused in display. The aim is achieved by a laminated polarizing film, wherein a reflective polarizing film and an absorptive polarizing film are laminated, and an antistatic layer is further laminated at least either on the outside of the reflective polarizing film or between the reflective polarizing film and the absorptive polarizing film.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 2, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toshihiko Tominaga, Naoyasu Nougi, Masaru Honda
  • Patent number: 7034903
    Abstract: An in-plane switching mode LCD device and a method for manufacturing the same are disclosed, which can easily repair data line by forming dummy patterns to prepare an open region of data line during a process. The in-plane switching mode LCD device includes first and second substrates opposing each other and a liquid crystal layer therebetween, gate and data lines arranged to cross each other on the first substrate, a plurality of common electrodes and data electrodes for applying an electric field parallel to the substrate within a pixel region defined by the gate and data lines, and first and second dummy patterns integral with the common electrodes and respectively overlapping a portion of the data line defining the pixel region. If the data line has an open region, the data line is electrically connected with the first and second dummy patterns, while the portion of the common electrode integral with the first and second dummy patterns is insulated from the common line.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: April 25, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Joun Ho Lee
  • Patent number: 7027123
    Abstract: A method of fabricating a liquid crystal display device includes forming a first testing terminal along a side surface of a first substrate, forming a second testing terminal along a side surface of a second substrate, attaching the first and second substrates together to expose the first and second testing terminals, and conducting a lighting test using the first and second testing terminals.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: April 11, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Kyung-Su Chae, Yong-Sang Byun
  • Patent number: 7019796
    Abstract: A TFT ESD protective circuit disposed between a scanning signal line or a data signal line and a Vcom. The protective circuit includes a positive ESD protective unit and a negative ESD protective unit. Each of the positive static protective unit and negative static protective unit is composed of three TFT. In the case that the gate insulating layer of any of the three TFT is broken down by electrostatic voltage, the remaining two TFT can still normally operate and keep truly providing static protective function.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: March 28, 2006
    Assignee: Wintek Corporation
    Inventors: Ja-Fu Tsai, Wen-Chun Wang
  • Patent number: 7012589
    Abstract: The present invention relates to a liquid crystal display device including a liquid crystal panel having a drive cell and a correction cell to correct a phase difference, and aims to improve a defect of display which occurs due to existence of a defective area in the vicinity of the inside of the seal member of a drive cell and correction cell. The liquid crystal display device includes the liquid crystal panel having the drive cell 1 and the correction cell 11 to correct the phase difference. The liquid crystal panel is structured by being overlapped between the correction cell 11 and the drive cell 1 in the form that the defective area 20a2 of the inside is overlapped in the vicinity of the seal member 8 of the drive cell 1, in the range of the normal area 20b1 of the correction 11. According to this structure, it is possible to avoid overlapping between the defective areas of the drive cell and the correction cell, and to reduce and improve defects in display due to the defective area.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: March 14, 2006
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Toshihiko Satou, Terutaka Okano