Defect Correction Or Compensation Patents (Class 349/192)
  • Publication number: 20100039577
    Abstract: Electrical conductor patterns (20) are provided so as to face respective source lines (SL). In each of the electrical conductor patterns (20), a plurality of electrical conductor islands (21) line up. With a source line (SL) being broken at points P1 and P2, an electrical conductor island (21-j) is connected via point Q1a and Q1b, and an electrical conductor island (21j) is connected via points Q2a and Q2b, by carrying out laser welding. This realizes a display panel including spare lines for respective data signal lines, in which display panel it is possible to increase a probability that a supply failure of a data signal can be avoided, even in a case where a data signal line is broken.
    Type: Application
    Filed: January 10, 2008
    Publication date: February 18, 2010
    Inventor: Shinichi Hirato
  • Patent number: 7663710
    Abstract: A liquid crystal display device of horizontal electric field type and a fabricating method thereof is provided. The liquid crystal display device includes a plurality of gate lines. Data lines cross in such a manner to insulate with the gate lines to define a pixel area. A first short preventive hole is arranged between a (n?1)th gate line and a (n)th gate line of the plurality of gate lines. And a bifarious pixel area is arranged between the (n)th gate line and a (n+1)th gate line of the plurality of gate lines.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Seoung Jin Park, Hyun Cheol Jin
  • Patent number: 7649580
    Abstract: A method of repairing a defect in a liquid crystal display panel is provided. The method comprises: providing an array substrate, a plurality of pixel regions over the array substrate, and at least one of the pixel regions comprising a transistor, a pixel electrode, a storage capacitor having an upper electrode and a bottom electrode, a defect positioned in the storage capacitor; performing a cutting process to divide the pixel electrode into a first portion and a second portion not connecting to each other, wherein said first portion of said pixel electrode is corresponding to the storage capacitor having said defect; and electrically connecting the second portion of the pixel electrode to one of the scan lines.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: January 19, 2010
    Assignee: HannStar Display Corp.
    Inventor: Ting-Hui Su
  • Patent number: 7649609
    Abstract: A method for repairing a short defect according to the present invention includes forming a first conductive pattern on a substrate, forming a photo-resist pattern on the first conductive pattern using a rear exposure for the first conductive pattern being shorted by a residue pattern, and removing the residue pattern exposed through the photo-resist pattern.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: January 19, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Heung Lyul Cho
  • Patent number: 7649586
    Abstract: A panel for a display device includes a shorting bar to dissipate an electrostatic charge and the first and second testing bars. Signal lines are divided into the first signal line group electrically connected to the first testing bar and the second signal line group electrically connected to the second testing bar. Floating transistors are formed between the shorting bar and the signal lines of the second signal line group.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Il Kim, Jong-Woong Chang, Seung-Soo Baek
  • Publication number: 20100007812
    Abstract: An active matrix substrate including a substrate, a plurality of scan lines, a plurality of data lines and a plurality of pixel units is provide. All of the scan lines, the data lines, the pixel units are disposed on the substrate. Each of the pixel units is electrically connected with the corresponding scan line and data line. In addition, at least a part of the pixel units further includes a plurality of active devices and a pixel electrode. The active devices are respectively electrically connected with the corresponding scan lines and data lines and the pixel unit is electrically connected with one of the active devices. In summary, each of the pixel units of the active matrix substrate provided by the invention includes more than one active device. When an active device is damaged under normal operation, another active device may be employed for repairing the pixel unit.
    Type: Application
    Filed: September 18, 2009
    Publication date: January 14, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventor: Han-Chung Lai
  • Publication number: 20090322978
    Abstract: An array substrate of a LCD and a method for repairing a broken line thereof are provided. The array substrate comprises pixel regions defined by the gate lines and the data lines, and each of the pixel regions comprises a thin film transistor and a pixel electrode. At least two overlapping strips are formed between two adjacent pixel regions, one end of the overlapping strip overlap the pixel electrode within one the pixel regions, the other end thereof overlaps the pixel electrode within the other pixel regions, and the central portion thereof overlaps the gate line and/or the data line. The repairing method comprises connecting two parts of the broken gate line and/or data line on both sides of the breaking point again through the overlapping strip and the pixel electrode, and disabling the TFT corresponding to the pixel electrode by laser cutting.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 31, 2009
    Inventor: Zhilong PENG
  • Patent number: 7636148
    Abstract: The present invention relates to an apparatus and method for repairing a liquid crystal display panel, which is capable of improving a yield thereof by darkening a bright point to minimize a defect ratio thereof. An apparatus for repairing a liquid crystal display panel according to the present invention includes: a liquid crystal display panel including a repair film formed on any one of a first substrate and a second substrate, which are facing to each other with a liquid crystal layer therebetween; and a laser irradiating device to irradiate a laser to the repair film to darken a specific area of the repair film, which is corresponded to an area where a bright point appears in the liquid crystal display panel.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 22, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Oh Nam Kwon, Heung Lyul Cho, Seung Hee Nam
  • Publication number: 20090296013
    Abstract: The present invention relates to a circuit and a method for repairing a broken line of a flat panel display device. The circuit includes a second repairing line and a resistance access port is disposed on the second repairing line. The method includes: disposing a resistance access port on a second repairing line of the flat panel display device; and connecting a resistance meeting a display requirement to the resistance access port. The above solutions enable the circuit for repairing to adjust the load resistance so as to adjust the display effect by disposing the resistance access port; thereby improving the repairing effect and making the display quality of the repaired flat panel display device meet the requirement.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongyu Liu, Ke Wang, Gang Wang, Xibin Shao
  • Patent number: 7626678
    Abstract: A repairing method of a liquid crystal display panel having a gravity defect includes steps of providing a first pressure to the liquid crystal display panel. Next, a second pressure is continuously provided to the liquid crystal display panel, and a section from the edge of the liquid crystal panel to the sealant is removed and forming an opening through the closed sealant frame. Then, forcing out the excess liquid crystal to flow out the panel through the cut off sections, cleaning out the excess material including LC mixture around the opening, and sealing the opening with a fresh end sealant. After that, providing a third pressure to the liquid crystal display panel, curing the end sealant to seal the opening, and then removing the third pressure. Finally, annealing the liquid crystal display panel to recover original display quality.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: December 1, 2009
    Assignee: HannStar Display Corp.
    Inventors: Kei-Hsiung Yang, Jiunn-Shyong Lin
  • Patent number: 7626647
    Abstract: An electrostatic discharge protection device, an electrostatic discharge protection structure, and a manufacturing process of the device are provided. The electrostatic discharge protection device includes at least four doping regions, wherein two adjacent regions are of different types. The electrostatic discharge protection structure includes an electrostatic discharge bus, a plurality of first electrostatic discharge protection devices connecting to the gates of the display transistors and the electrostatic discharge bus, a plurality of second electrostatic discharge protection devices connecting to the source/drain of the transistors and the electrostatic discharge bus, and a plurality of third electrostatic discharge protection devices connecting to the input/output terminals of the drive circuit of the display and the electrostatic discharge bus.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: December 1, 2009
    Assignee: AU Optronics Corp.
    Inventors: Ming-Dou Ker, Chih-Kang Deng, Wein-Town Sun
  • Publication number: 20090290086
    Abstract: A liquid crystal display device and a method of repairing bad pixels thereof, in which the bad pixels can be efficiently and easily repaired, includes a first insulating substrate, a gate wiring and a storage wiring arranged substantially parallel to each other in a first direction on the first insulating substrate, a data wiring intersecting the gate and storage wirings in an insulated manner and arranged substantially in a second direction, and a pixel electrode formed on a pixel area defined by the gate and data wirings. The storage wiring includes a horizontal portion arranged substantially in the first direction and at least a part of which does not overlap the pixel electrode, and a vertical portion branching off substantially in the second direction from the horizontal portion and overlapping the data wiring.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 26, 2009
    Inventors: Jong-woong CHANG, Shin-tack Kang
  • Patent number: 7623216
    Abstract: A fabricating method of a flat panel display device includes inspecting the flat panel display device by supplying test data and a test scan signal to data electrodes of the flat panel display device to generate an inspection result, judging a location of a panel defect in the flat panel display device and a degree of the panel defect at the panel defect location in accordance with the inspection result and determining compensation data for compensating the degree of the panel defect, and storing the compensation data for compensating the degree of the panel defect at a data modulation memory of the flat panel display device.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: November 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Jong Hee Hwang
  • Patent number: 7623217
    Abstract: A tool for use in affixing an optical component, such as glass, to a liquid crystal display (LCD) using a silicone gel mixture includes, in one embodiment, a unitary metallic platen that is shaped to define a central window. A narrow shelf is defined around the central window to support the optical component during the application of the silicone gel thereon. A upwardly extending partition is formed onto the top surface of the platen around the shelf to retain the optical component fixed in place on the platen during the assembly process. A plurality of identical, spaced apart, upwardly extending standoffs are formed onto the free end of the partition to support the LCD a fixed distance away from the optical component. In this manner, the standoffs ensure that the layer of silicone gel deposited between the optical component and the LCD is uniform in thickness to optimize performance.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: November 24, 2009
    Assignee: Via Optronics, LLC
    Inventors: William A. Barrow, Maria E. Crouser, Wayne Patrick Gentry, Andrew Mitchell Robinson
  • Publication number: 20090284679
    Abstract: A display substrate includes a signal line formed on a substrate, a connection pad receiving a driving signal from the signal line, at least one repair line formed along an outer periphery of the substrate, a first auxiliary repair line overlapping the signal fine at a first position with an insulating layer disposed therebetween, a second auxiliary repair line overlapping the signal line at a second position with the insulating layer disposed therebetween, and a connection line connecting the second auxiliary repair fine to the at least one repair line.
    Type: Application
    Filed: October 31, 2007
    Publication date: November 19, 2009
    Applicant: Samsung Electronics Co., LTD.
    Inventors: Duk Sung Kim, Sung Haeng Cho
  • Publication number: 20090284680
    Abstract: An embodiment of the invention provides a method for repairing a broken signal line of a liquid crystal display device, comprising determining a position of a breaking point on the broken signal line and a pixel where the breaking point is located on an array substrate; and welding two parts of the broken signal line at both sides of the breaking point to a pixel electrode of the pixel by laser welding and disabling a thin film transistor as a switching device of the pixel by laser cutting. Also, there is provided a liquid crystal display device.
    Type: Application
    Filed: April 21, 2009
    Publication date: November 19, 2009
    Inventor: Zhilong PENG
  • Patent number: 7619700
    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: March 22, 2006
    Date of Patent: November 17, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Masaaki Hiroki
  • Publication number: 20090279014
    Abstract: An active matrix substrate in which wherever a short between adjacent pixel electrodes of a liquid crystal panel is located in peripheral portions of the pixel electrodes, the short can be efficiently corrected without forming both short-circuited pixels into black dots, and a liquid crystal panel having the active matrix substrate, as well as methods of correcting the AM substrate and the liquid crystal panel. Each of pixel electrodes arranged in a matrix in an active matrix substrate is divided into a plurality of minute regions, and the minute regions are integrally connected by electrically connecting portions. A plurality of lines arranged to transmit signals to each of the pixel electrodes are placed so as not to coincide with the electrically connecting portions of each of the pixel electrodes.
    Type: Application
    Filed: October 16, 2006
    Publication date: November 12, 2009
    Inventors: Masaomi Okamoto, Toshihide Tsubata
  • Patent number: 7616268
    Abstract: A liquid crystal display panel according to an embodiment of the present invention includes a first shorting bar inspecting a signal line in a non-display area of a first substrate; a second shorting bar inspecting the signal line in the non-display area of the inspected first substrate attached to a second substrate; a first shorting line connected to at least one of the signal lines and the first and second shorting bars; and a second shorting line connected the second shorting bar with the remaining signal line except the signal line connected to the first shorting line.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: November 10, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Yeung Kwak, Chul Sang Shin
  • Patent number: 7612863
    Abstract: A liquid crystal display that is subject to pixel-high defects due to manufacturing anomalies is provided with programmable repair means for each pixel electrode. In one embodiment, a transistor-array substrate is provided with plural gate lines that are separated from each other by a first interval, plural data lines that are insulated from the gate lines while crossing the gate lines, and separated from each other by a second interval larger than the first interval, thereby defining plural pixel areas. Each pixel area has a corresponding pixel unit comprising a switching device, pixel electrode, and repair electrode. The repair electrode branches from a neighboring gate line and extends such that the repair electrode is in overlapping spaced-apart relation with the pixel electrode and selectively connectable to the pixel electrode.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: November 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-Jun Kim, Jong-Hwan Lee, Sang-Jin Jeon, Sung-Man Kim, Bong-Jun Lee, Hong-Woo Lee
  • Publication number: 20090268119
    Abstract: A liquid crystal display device includes an array substrate and a color filter substrate, a plurality of gate lines and a plurality of data lines formed on the array substrate such that the gate lines and the data lines intersect each other to define a plurality of pixel regions, a plurality of thin film transistors formed at respective intersections of the gate lines and the data lines, a liquid crystal layer interposed between the array and color filter substrates, and a plurality of repair patterns formed on the first substrate. Each of the plurality of the repair patterns crosses a corresponding one of the data lines, and is along and adjacent to a corresponding one of the gate lines, such that the repair pattern includes protruding ends that protrude from the corresponding data line to repair a defect on the pixel regions.
    Type: Application
    Filed: December 12, 2008
    Publication date: October 29, 2009
    Inventors: Sang-Hyup Lee, Jin-Seok Lee
  • Publication number: 20090262274
    Abstract: A liquid crystal display uses a pixel division method by which the size of a defect can be reduced much more than conventionally possible, and a defect correcting method for the liquid crystal display. The liquid crystal display is provided with an active matrix array substrate including a plurality of gate lines and a plurality of source lines arranged on a transparent substrate so as to intersect with each other, and a plurality of pixel electrodes arranged in a matrix, each pixel electrode including an assembly of a plurality of sub-pixel electrodes, separate TFTs respectively connected to the sub-pixel electrodes in the vicinity of an intersection portion of the gate line and the source line, the TFTs being driven by the common gate line and the common source line, and at least one opening portion being formed in a lower-layer side line placed in a lower layer at the intersection portion.
    Type: Application
    Filed: December 13, 2005
    Publication date: October 22, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoki Noda, Toshihide Tsubata, Masanori Takeuchi, Kenji Enda
  • Patent number: 7605904
    Abstract: The present invention relates to a liquid crystal display panel having a cell test structure and a method for making the same. The liquid crystal display panel includes a substrate having a plurality of first driving IC mounting areas, a plurality of first conductive wires located on the substrate, a plurality of second conductive wires that are parallel and interlaced with the first conductive wires, a first shorting bar connected to the first conductive wires and passing through all of the first driving IC mounting areas, and a second shorting bar connected to the second conductive wires and passing through all of the first driving IC mounting areas.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 20, 2009
    Assignee: AU Optronics Corp.
    Inventors: Hsin-Tai Wu, Chao-Liang Lu, Chih-Hsiang Yang, Kuo-Chih Lee
  • Publication number: 20090256986
    Abstract: A pixel structure includes a scan line, a gate, a common line, a first dielectric layer, a channel layer, a source, a drain, a data line, a capacitance coupling electrode (CCE), a second dielectric layer and a pixel electrode. The gate, the common line and the scan line are disposed on the substrate, and the gate is electrically connected to the scan line. The common line has at least one first opening, and at least a portion of the first opening is located between the data line and the CCE. The channel layer is disposed on the first dielectric layer above the gate. The source and the drain are disposed on the channel layer. The CCE is disposed on the first dielectric layer above the common line and electrically connected to the drain. The pixel electrode is disposed on the second dielectric layer, and electrically connected to the CCE.
    Type: Application
    Filed: December 14, 2008
    Publication date: October 15, 2009
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Chien-Ming Chen, Yuan-Hao Chang
  • Patent number: 7602363
    Abstract: In an array substrate and a display apparatus, a pixel part has a plurality of gate lines, a plurality of data lines, and a plurality of pixels electrically connected to the gate and data lines. A driving circuit drives the pixel part electrically connected to a first end of the gate lines. An inspection circuit is electrically connected to a second end of the gate lines, and inspects the pixel part in response to an inspection signal externally provided. Thus, positions and causes for defects of the pixel part may be accurately detected, thereby improving inspecting efficiency.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: October 13, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Man Kim, Myung-Koo Hur, Beom-Jun Kim, Seong-Young Lee
  • Publication number: 20090244427
    Abstract: A liquid crystal display panel includes a first substrate, and a second substrate opposite to and facing the first substrate. The first substrate, having a repairing region and a display region defined thereon, includes at least one repairing wire arranged in the repairing region, and a passivation layer disposed over the repairing wire. The second substrate includes a common electrode, and at least one repairing protection pad formed thereon. The repairing protection pad, disposed on the surface of the common electrode and in the repairing region, faces the first substrate, and corresponds to the repairing wire.
    Type: Application
    Filed: October 21, 2008
    Publication date: October 1, 2009
    Inventor: Chung-Wei Chang
  • Publication number: 20090244428
    Abstract: A substrate for a display device includes an active matrix substrate and an opposed substrate which are opposed to each other with a display medium layer interposed there between. The active matrix substrate includes a pixel electrode arranged in a matrix shape on the side of the display medium layer and the opposed substrate includes a common electrode opposing to the pixel electrode on the side of the display medium layer, wherein the substrate for a display device includes an electrode slit formed in one of the pixel electrode and the common electrode, and at least one of the electrical connecting portions of the electrode slit is provided outside of a light-blocking region.
    Type: Application
    Filed: May 29, 2009
    Publication date: October 1, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidetoshi NAKAGAWA, Toshihide TSUBATA, Nobuyoshi NAGASHIMA, Yuhko HISADA
  • Publication number: 20090219457
    Abstract: A display substrate includes a source pad part, a plurality of storage wirings and a first voltage wiring. The source pad part includes a first voltage input pad receiving a storage common voltage. The storage wirings transmit the storage common voltage to a plurality of pixels. The first voltage wiring is connected to the first voltage input pad to be extended in a direction crossing the storage wirings. The first voltage wiring includes a first protrusion part overlapping a first end portion of each of the storage wirings. Therefore, defects of the display substrate may be detected by an electrical test and then repaired, and test efficiency of the display substrate may be enhanced.
    Type: Application
    Filed: February 17, 2009
    Publication date: September 3, 2009
    Inventors: Jin-Suk SEO, Hye-Rhee Han, Beom-Jun Kim, Young-Woon Kho, Yu-Jun Kim
  • Patent number: 7583354
    Abstract: An active matrix substrate includes a transistor, a pixel electrode connected with one of the current-flowing electrodes of the transistor, a storage capacitor wiring, a lead wiring extending from one of the current-flowing electrodes of the transistor, and a repair wiring extending from the storage capacitor wiring. The repair wiring overlaps a portion of the lead wiring with an insulating layer interposed therebetween. As a result, TFT defects (for example, a short circuit between a source electrode and a drain electrode) can be repaired, and performance of fast display and reduction in electric power consumption can be realized.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: September 1, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihide Tsubata, Yoshihiro Okada, Atsushi Ban, Toshinori Sugihara
  • Patent number: 7580108
    Abstract: A liquid crystal display device and a method of repairing bad pixels thereof, in which the bad pixels can be efficiently and easily repaired, includes a first insulating substrate, a gate wiring and a storage wiring arranged substantially parallel to each other in a first direction on the first insulating substrate, a data wiring intersecting the gate and storage wirings in an insulated manner and arranged substantially in a second direction, and a pixel electrode formed on a pixel area defined by the gate and data wirings. The storage wiring includes a horizontal portion arranged substantially in the first direction and at least a part of which does not overlap the pixel electrode, and a vertical portion branching off substantially in the second direction from the horizontal portion and overlapping the data wiring.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: August 25, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-woong Chang, Shin-tack Kang
  • Patent number: 7580107
    Abstract: The present invention provides an LCD including a liquid crystal panel including a plurality of first display signal lines, a plurality of second display signal lines crossing the first display signal lines, a plurality of switching elements each of which is connected to both of one of the first display signal lines and one of the second display signal lines, pixel electrodes being respectively connected to the switching element, and one or more inspection lines for transmission of test signal to the second display signal lines. The inspection lines are separated from the first and second display signal lines, the switching elements, and the pixel electrodes, and they include one or more test pads for receiving an externally applied test signal. The test pads are formed at positions where one or more external devices are attached to the liquid crystal panel.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: August 25, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung-Jae Moon
  • Patent number: 7575960
    Abstract: A method for fabricating a thin film transistor matrix device which includes forming a transparent insulating substrate, arranging a plurality of thin film transistors on the substrate in a matrix, arranging a plurality of picture element electrodes on the substrate in a matrix and connecting the picture element electrodes to sources of the thin film transistors. The method also includes forming a plurality of bus lines for commonly connecting gates or drains of the thin film transistors, forming a plurality of bus line terminals on the ends of the bus lines, respectively, with each bus line terminal being provided for each bus line, and forming one connection line on the substrate in a region outer of plurality of the bus line terminals and commonly connecting the plurality of bus lines. The method further includes the step of electrically disconnecting the bus lines from the connection line by laser melting.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: August 18, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidaki Takizawa, Shougo Hayashi, Takeshi Kinjo, Makoto Tachibanaki, Kenji Okamoto
  • Publication number: 20090201456
    Abstract: An object of the present invention is to provide a technique capable of adapting to a narrow pitch between bumps of a recent driver LSI without reducing a size of a conductive pattern part. A liquid crystal display device according to the present invention includes a display unit and a plurality of wirings formed on an electrode substrate of the display unit. Thus, the liquid crystal display device according to the present invention further includes a driver LSI, measurement wirings branching from the plurality of wirings positioned between the display unit and the driver LSI, and a conductive pattern part formed above the measurement wiring excluding a branch point through a first insulation layer and formed over the measurement wirings branching from the plurality of wirings.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kenichi WATANABE
  • Patent number: 7573559
    Abstract: A method of fabricating a liquid crystal display panel includes forming a first alignment film on a first substrate, aligning the first alignment film in a first alignment direction by a first rubbing process, forming a second alignment film on a second substrate, aligning the second alignment film in a second alignment direction by a second rubbing process, attaching the first and second substrates to each other, and re-aligning a substantially non-uniformly aligned area on at least one of the first and second substrates by irradiating a light irradiating device of one of an ultraviolet ray and a laser beam.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: August 11, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Oh Nam Kwon, Seung Hee Nam
  • Patent number: 7570312
    Abstract: Disclosed is a liquid crystal display module which makes it possible to reduce the number of components and manufacturing processes of the liquid crystal display module and to easily replace a failed LED of a backlight unit that irradiates light onto a liquid crystal panel when the LED fails. In the liquid crystal display module, an electric signal is transferred to the liquid crystal panel and the LED through a flexible printed circuit board, and the flexible printed circuit board is electrically and physically connected to the LED by connecting a coupling pin of the LED with a socket of the flexible printed circuit board. In the case in which an LED fails, the coupling pin of the failed LED can be detached from the socket of the flexible printed circuit board, and thus the LED can easily be replaced.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: August 4, 2009
    Assignee: Hydis Technologies, Co., Ltd.
    Inventor: Jong Dae Kim
  • Publication number: 20090185129
    Abstract: A liquid crystal electro-optic device. The liquid crystal electro-optic device comprises at least one liquid crystal cell comprising: a pair of substrates having a gap therebetween; a pair of electrodes, the pair of electrodes positioned on one of the substrates or one electrode positioned on each substrate; and a ferroelectric, oligosiloxane liquid crystal material disposed in the gap between the pair of substrates, the ferroelectric, oligosiloxane liquid crystal material exhibiting an I-? SmC* phase sequence wherein the liquid crystal electro-optic device is bistable in operation. The invention also involves a method for making a liquid crystal electro-optic device.
    Type: Application
    Filed: April 12, 2007
    Publication date: July 23, 2009
    Applicants: DOW CORNING CORPORATION, CAMBRIDGE ENTERPRISE LTD
    Inventors: Terry Victor Clapp, Fumito Nishida, Jonathan Paul Hannington, Russell Keith King, Omar Farooq, William Alden Crossland, Joo-Nyung Jang, Huan Xu, Anthony Bernard Davey
  • Patent number: 7564543
    Abstract: A defective pixel correction apparatus has a laser output section and a measurement mechanism. The laser output section has an adjustment function of adjusting an intensity of a laser beam. The measurement mechanism measures an intensity of a laser beam reflected from a defective pixel.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: July 21, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryuichi Togawa
  • Patent number: 7557898
    Abstract: A substrate gap adjusting device adjusts a gap between first and second substrates in a composite substrate. In the substrate gap adjusting device, the composite substrate includes the first substrate; the second substrate that is oppositely bonded to the first substrate through a sealant, the second substrate having a smaller area than the first substrate; and liquid crystal that is injected into a space surrounded by the first substrate, the second substrate, and the sealant.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: July 7, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Tasaka, Narumi Ishibashi, Masanori Akiyama
  • Publication number: 20090167976
    Abstract: An array substrate of a liquid crystal display includes data lines; scanning lines configured to cross with the data lines; a test line provided outside a display region of the array substrate for test of the array substrate; and a repair line provided outside the display region for repair of a defective data line. The test line is configured to be electrically isolated from the repair line when the repair is not carried out and is electrically connected to the repair line and the defective data line when the repair is performed. A method of repairing the array substrate and a liquid crystal display using the array substrate are also provided. According to the invention, the test line can be used as a part of a repair circuit for repair of the data lines, thereby greatly decreasing non-display area.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 2, 2009
    Inventors: Te-Chen Chung, Tean-Sen Jen, Chia-Te Liao
  • Patent number: 7553392
    Abstract: A method of manufacturing a liquid crystal display device in which liquid crystal is sealed between substrates using a one drop fill method. Dropping of liquid crystal is controlled so that the dropping quantity of the liquid crystal is reduced in an area including the vicinity of a seal material on a side with a relatively narrow cell gap width while the dropping quantity of the liquid crystal is increased in an area including the vicinity of the seal material on a side with a relatively broad cell gap width. Alternatively, dropping of the liquid crystal is controlled so that the number of times the liquid crystal is dropped is reduced in the area including the vicinity of the seal material on one side while the number of times the liquid crystal is dropped is increased in the area including the vicinity of the seal material on another side without changing the dropping quantity of one drop.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shota Makimoto, Satoshi Murata, Hiroyuki Sugimura, Tetsuya Kida, Hidehiko Suzuki
  • Patent number: 7551254
    Abstract: A displaying device at least comprises a thin film transistor (TFT); a first electrode controlled by the TFT; a first capacitor electrode and a second capacitor electrode electrically connected to each other through the first electrode. The first electrode has a first slit. The first slit is positioned between a first zone and a second zone, wherein the first zone connects the first capacitor electrode and the first electrode, and the second zone connects the second capacitor electrode and the first electrode. If a defect is observed, a portion of the first electrode is removed for isolating the first capacitor electrode and the second capacitor electrode.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: June 23, 2009
    Assignee: Chi Mei Optoelectronics Corporation
    Inventors: Chung-Yi Wang, Rung-Nan Lu
  • Patent number: 7551260
    Abstract: A liquid crystal display device is provided to prevent gas bubbles from being generated due to the contact of an inspection probe. An insulating film composed of a gate insulating film and a protection film is formed on a gate wire and wire inspection terminal, and is partially removed from an upper surface of the wire inspection terminal to form a concave portion exposing the top surface of the wire inspection terminal. A transparent conductive film made of ITO is formed on the insulating film, including the concave portion on the wire inspection terminal. The transparent conductive film is electrically connected with the wire inspection terminal at the concave portion, and formed extending onto the gate insulating film and protection film on the opposite side of a scanning wire of the wire inspection terminal. Disconnection inspection is performed using the extending portion as a contact portion with an inspection probe.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 23, 2009
    Assignee: Hitachi Displays, Ltd.
    Inventors: Osamu Nagashima, Kurando Shinba, Eisuke Hatakeyama, Hikaru Ito, Masataka Natori
  • Publication number: 20090153764
    Abstract: A TFT array substrate comprising a substrate has a pixel region and a peripheral circuit region surrounding the pixel region, a TFT array, first lead lines, second lead lines, and first repair patterns is provided. The peripheral circuit region has an outer area and an inner area. The inner area is disposed between the pixel region and the outer area. The TFT array disposed in the pixel region includes a first conducting layer and a second conducting layer. The first lead lines and the second lead lines disposed in the peripheral circuit region are on the same layer of the first conducting layer and the second conducting layer respectively. The first repair patterns disposed in the inner area are sandwiched between the second lead lines and the substrate. At least a first pre-repair area is at a region where the second lead lines and the first repair patterns are overlapped.
    Type: Application
    Filed: February 20, 2009
    Publication date: June 18, 2009
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Han-Tung Hsu, Hui-Chung Shen, Ssu-Tsung Wu, Wen-Sheng Liu, Ya-Jung Kung, Ching-Yun Ko
  • Publication number: 20090141231
    Abstract: A method for repairing a defective cell of a liquid crystal panel includes: providing a liquid crystal panel including an upper array substrate with a black matrix and a pigment layer formed thereon, a lower array substrate with a thin film transistor and attached with the upper array substrate, and a liquid crystal layer formed between the upper and lower substrates and including a plurality of cells; forming a certain gap between the black matrix and the upper array substrate by irradiating laser to a defective cell region among the plurality of cells in the liquid crystal panel; forming a comb-like structure with a certain gap between its teeth between the pigment layer and the upper array substrate by irradiating laser to the defective cell region; processing the black matrix by irradiating laser to the defective cell region to generate black matrix particles; and dispersing the black matrix particles between the pigment layer and the upper array substrate, by irradiating laser to the defective cell regio
    Type: Application
    Filed: August 29, 2008
    Publication date: June 4, 2009
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Eun-Sub Lim, Chang-Seok Geum
  • Patent number: 7541223
    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: June 2, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Ho Yang, Joo-Sun Yoon, Kyo-Seop Choo, Jin-Suk Park
  • Publication number: 20090135327
    Abstract: The current invention aims at obtaining a liquid crystal display device in which a yield is enhanced and a representation quality is enhanced by repairing a wiring defect due to broken wiring recognized by representation inspection after a CF is bonded and turning a luminescent spot defect into an unnoticeable black spot defect without introduction of an inspection device in a state of a TFT substrate, without any extra cost. The liquid crystal display device of the current invention in which a liquid crystal is interposed between first and second substrates, and the first substrate is a substrate of an active matrix structure comprising a thin film transistor and the second substrate is a substrate comprising a color filter, a projecting portion which is disposed in a predetermined area of the color filter and a conductive film formed on a front end.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 28, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kenichi MINOWA
  • Patent number: 7535548
    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: Grant
    Filed: June 30, 2006
    Date of Patent: May 19, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Bum Lee
  • Patent number: 7532265
    Abstract: An integrated circuit with the cell test function for the electrostatic discharge (ESD) protection, wherein each ESD unit protection circuit has a first, second, and third thin film transistors (TFTs) composed and connected to a signal line, a fourth TFT's and a fifth TFT's gate and drain electrodes are also shorted at the common electrode and the source electrode of the third TFT connects to the common electrode. A sixth TFT's drain electrode connects to the source electrode of the fourth TFT and the source electrode of the fifth TFT connects to the gate electrode of the sixth TFT. By the gate and drain electrodes of the sixth TFT connecting to the corresponding test-switch pads respectively, the sixth TFT is used as a TFT switch so as to build the cell test function in the ESD unit protection circuit.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 12, 2009
    Assignee: Wintek Corporation
    Inventors: Ja-Fu Tsai, Wen-Chun Wang
  • Patent number: 7532316
    Abstract: The present invention relates to a display panel inspection apparatus for inspecting a display panel composed of a plurality of pixels. The display panel inspection apparatus comprises a detecting unit detecting whether or not each of the pixels is a defective pixel and a holding unit holding a result of the detection by the detecting unit, thereby enabling reliable and easy detection of a defective pixel occurring temporarily due to variations of operation environment such as semi-contact trouble or semi-disconnection trouble, and others.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 12, 2009
    Assignee: Fujitsu Limited
    Inventor: Seiji Hachisuka
  • Patent number: 7532302
    Abstract: An exemplary method of repairing gate lines (201) of TFT array substrate, wherein the TFT array substrate includes a plurality of gate lines (201, 202), a plurality of data lines (211, 212, 213) crossing with the gate lines, a plurality of pixel electrode (221, 231), and a plurality of thin film transistors (240, 250), and one of the gate lines has a defect point (II). The method includes: cutting off an electrical connection between the gate electrode of one of the TFTs adjacent one side of the defect point and the corresponding data line, and cutting off an electrical connection between the gate electrode of one of the TFTs adjacent an opposite side of the defect point and the corresponding data line; electrically connecting the gate line having the defect point to each of two corresponding pixel electrodes that correspond to the two TFTs; and electrically connecting the two pixel electrodes.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: May 12, 2009
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.
    Inventor: Qing-Hua Li