Defect Correction Or Compensation Patents (Class 349/192)
  • Publication number: 20090115959
    Abstract: A data line repair structure for a liquid crystal display panel is disclosed. The data line repair structure includes a first repair line parallel to the scan line and crossing a first end of the data line; a fourth repair line formed in an oblique line area of the liquid crystal panel, coupled to the first repair line; a second repair line parallel to the data line, coupled to the gate driving chip and the fourth repair line; a third repair line parallel to the scan line, coupled to the second repair line and separated from a second end of the data line; and a floating line connected between the third repair line and the second end of the data line when the data line has a broken point.
    Type: Application
    Filed: January 8, 2009
    Publication date: May 7, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Kun-Chen Lee, Chia-Hua Yu, Sung-Chun Lin, Chang-Ching Yeh, Hsuan-Chen Liu
  • Publication number: 20090115925
    Abstract: A display substrate includes a pixel electrode including a main electrode and a sub-electrode disposed apart from the main electrode and including an opening part. The display substrate includes a first switching device and a second switching device. The first switching device is connected to the main electrode. An extension electrode extends from the second switching device and overlaps the opening part. The extension electrode is connected to the sub-electrode via a contact part. According to the present invention, after a defective pixel is repaired, the repaired pixel operates normally.
    Type: Application
    Filed: May 12, 2008
    Publication date: May 7, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Hyun PARK, Kyung-Wook KIM, Sung-Hwan BAE
  • Patent number: 7525529
    Abstract: A display panel comprising a pixel array is provided. The pixel array, laid on a first circuit layer, comprises at least one first pixel, at least one second pixel, at least one rescue line, and an isolation layer. The first pixel comprises a thin film transistor aligned to upper edge of the first pixel. The second pixel comprises a thin film transistor aligned to lower edge of the second pixel, wherein the second pixel is adjacent to the first pixel and below the first pixel respectively. The rescue line lay on a second circuit layer, positions at the gap between the first pixel and the second pixel. The isolation layer lies between the first circuit layer and the second circuit layer.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: April 28, 2009
    Assignee: AU Optronics Corp.
    Inventors: Hsueh-Ying Huang, Min-Feng Chiang
  • Publication number: 20090102998
    Abstract: A display apparatus comprises a substrate, a first lead, a second lead and a third lead. The first lead and second lead are provided on the substrate and intersect at a first overlapping area. The third lead surrounds the first overlapping area where the first lead and second lead cross each other. The third lead intersects the first lead respectively at a second overlapping area and a third overlapping area.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 23, 2009
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: YI TSE LIN, HSU HO WU, CHIA HUA YU, HUI FANG CHENG
  • Patent number: 7522227
    Abstract: A liquid crystal display device and a method for fabricating the same are disclosed.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Eun Hong Kim
  • Patent number: 7518690
    Abstract: An image display device prevents display abnormality due to the corrosion and/or disappearance of the testing electrodes and/or and the conductive film for leading lines with a simple structure. Leading lines, which are in the wiring terminal section, electrically connect internal wiring lines to a driver IC. Each of the leading line has a mounting electrode and a testing electrode. A patterned first conductive film, which is separate from the testing electrode, connects electrically the mounting electrode to the corresponding internal wiring line in the display section. A patterned connecting conductive film is formed on an insulative film to contact with the mounting and testing electrodes, thereby making electrical interconnection between the mounting and testing electrodes. The connecting conductive film is made of a material (e.g., ITO) whose corrosion resistance is greater than a material (e.g., Cr) for the testing electrode.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: April 14, 2009
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Manabu Komaju
  • Patent number: 7515243
    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: March 21, 2006
    Date of Patent: April 7, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shigeki Watamura
  • Patent number: 7508229
    Abstract: A method and a device for testing an array substrate for a liquid crystal display that allow time for testing to be reduced are provided. An array substrate is divided into two test blocks, and two scanning signal lines in total, one from each of the test blocks, are selected and tested at a time, so that the addresses of possible defective pixels are specified. Then, the array substrate is divided into three test blocks, and three scanning signal lines in total, one from each of the test blocks, are selected and re-tested at a time, so that the addresses of possible defective pixels are specified. Then, the address of a pixel common between the first testing and re-testing is specified as a defective address.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: March 24, 2009
    Assignees: International Business Machines Corporation, CMO Japan, Co., Ltd.
    Inventors: Tomoyuki Taguchi, Yoshinori Mekata, Shunichi Komatsu, Hiroki Nishiyama, Tsukasa Iwami
  • Publication number: 20090066867
    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: Application
    Filed: September 29, 2008
    Publication date: March 12, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshihide TSUBATA, Yoshihiro OKADA, Atsushi BAN, Toshinori SUGIHARA
  • Patent number: 7502094
    Abstract: A repairing device for a display device includes a substrate and a color filter disposed on the substrate. The color filter includes a first surface facing the substrate and a second surface disposed opposite to the first surface. The repairing device includes laser equipment illuminating a laser beam focused on the first surface and having a wavelength of greater than about 250 nm.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: March 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Il Son
  • Publication number: 20090059112
    Abstract: A liquid crystal display device, drive circuit, and repair method thereof are provided. The drive circuit includes a plurality of signal lines and a plurality of drivers connected with the signal lines. The drivers have an ordering sequence. Each of the drivers includes a first amplifier and a second amplifier. Each of the first amplifier and the second amplifier includes an input terminal and an output terminal. The output terminal of the first amplifier of each of the driver is coupled to the input terminal of the first amplifier of the next stage driver according to the ordering sequence. The output terminal of the second amplifier of each driver is coupled to the input terminal of the second amplifier of the next stage driver according to the ordering sequence.
    Type: Application
    Filed: February 18, 2008
    Publication date: March 5, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Chao Liang Lu, Chi Mao Hung, Wei Min Sun, Yu Chuan Lin, Kuo Hsing Cheng
  • Patent number: 7499122
    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: October 27, 2006
    Date of Patent: March 3, 2009
    Assignee: Au Optronics Corporation
    Inventors: Han-Chung Lai, Chun-Hao Su, Wen-Chih Chen
  • Patent number: 7491477
    Abstract: The present invention provides a method for manufacturing a color filter to facilitate the correction of the defect which is caused by the undesirable mixing of plural color filter materials with different color. Further, the present invention provides a color filter manufactured by the present method for manufacturing the color filter and also a semiconductor device using the color filter manufactured by the present method. In the manufacturing method of the present invention, the color-mixed portion which is undesirably formed during the production of the color-filter by using a plurality of color filter materials is irradiated with a laser beam which is different in transmissivity to each color filter material. This method allows the color filter material which is necessary to remain and the color filter material which is unnecessary to be selectively removed.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 17, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shuji Fukai, Kanako Kunizaki
  • Patent number: 7492438
    Abstract: A data line repair structure for a liquid crystal display panel. The data line repair structure includes a first repair line parallel to a scan line and crossing the first end of a data line; a second repair line parallel to the data line and connected to a gate driving chip; and a third repair line parallel to the scan line and crossing the second end of the data line. When the data line has a broken point, the source driving chip transmits a data signal to a pixel electrode through the first repair line, the second repair line, and the third repair line.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: February 17, 2009
    Assignee: Hannstar Display Corp.
    Inventors: Sung-Chun Lin, Te-Cheng Chung, Yi-Tse Lin, Hsuan-Chen Liu
  • Publication number: 20090027582
    Abstract: An active matrix substrate facilitates correction of a pixel defect and a pixel defect correcting method. A laser target portion of a drain electrode extension portion is irradiated with laser light so as electrically disconnect a TFT from a subpixel electrode. Laser target portions are irradiated with laser light so as to melt an insulating layer, thereby establishing electrical connection between a drain electrode extension portion and a corrective connecting electrode and between a data signal line (13(m+1)) and the corrective connecting electrode. Laser target portions are irradiated with laser light, thereby establishing electrical connection between a drain electrode extension portion of a pixel P(n+1, m) and a corrective connecting electrode and between the data signal line (13(m+1)) and the corrective connecting electrode.
    Type: Application
    Filed: February 21, 2006
    Publication date: January 29, 2009
    Inventors: Yasuyuki Ohta, Masanori Takeuchi, Toshihide Tsubata
  • Publication number: 20090021680
    Abstract: A liquid crystal panel 11 includes a pair of substrates 18, 19, liquid crystal 20 disposed between the substrates 18, 19, and alignment films 30, 36 provided on the opposed surfaces of the substrates 18, 19. After formation of the alignment film 30 or 36 is completed in a manufacturing process, it is checked by an inspection process whether a pinhole H is formed on the alignment film 30, 36, and further the position of the pinhole H is detected. Thereafter, an alignment film repair filler 50 is applied to the pinhole H by a repair process, so that the pinhole H is repaired.
    Type: Application
    Filed: September 19, 2008
    Publication date: January 22, 2009
    Inventors: Noriaki ONISHI, Kimitaka Ohhata, Jun Mlkaml
  • Publication number: 20090021665
    Abstract: An active array substrate for a flat panel display is disclosed. The active array substrate includes a substrate, a plurality of first conductive lines, a plurality of second conductive lines, a plurality of first repair lines, a plurality of second repair lines, a plurality of third repair lines. The substrate has a display area. The first repair lines cross and are electrically separated from the second conductive lines. The second repair lines cross and are electrically separated from the second conductive lines. Each of the third repair lines is in electrical connection respectively with one of the first repair lines and one of the second repair lines. The second conductive lines are divided into a plurality of second conductive line groups and each of the second conductive line groups respectively corresponds to one of the third repair lines.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: AU Optronics Corp.
    Inventors: Tsung-Jieh Shiao, Tien-Chun Huang, Shou-Lie Liu
  • Publication number: 20090015745
    Abstract: The present invention is a substrate for a display device comprising an active matrix substrate and an opposed substrate which are opposed to each other with a display medium layer interposed therebetween, said active matrix substrate including a pixel electrode arranged in a matrix shape on the side of the display medium layer and said opposed substrate including a common electrode opposing to the pixel electrode on the side of the display medium layer, wherein said 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 said electrode slit is provided outside of a light-blocking region.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 15, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidetoshi NAKAGAWA, Toshihide TSUBATA, Nobuyoshi NAGASHIMA, Yuhko HISADA
  • Patent number: 7471351
    Abstract: The present invention discloses a repair structure for a liquid crystal display and a method of repairing the same to repair a defect caused by a short circuit between a scan line and a data line. More specifically, a repair structure for a liquid crystal display having a substrate includes a scan line on the substrate, a data line crossing the scan line and having first, second, and third segments, wherein the second segment is an electrically isolated from the first and third segments and located at a portion where the scan line and the data line overlap, and a repair pattern electrically isolated from the second segment and electrically connecting the first segment with the third segment of the data line.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 30, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Woo Hyuk Choi
  • Publication number: 20080304003
    Abstract: A method for repairing a storage capacitor on gate or a storage capacitor on common line is described. A portion of each pixel electrode is disposed above a scan line or a common line. An upper electrode is disposed between the pixel electrode and the corresponding scan line or the common line. The pixel electrode and the upper electrode are electrically connected. A defective capacitor is formed when a particle/defect is produced between the upper electrode and the common line or the scan line. The method of repairing the defective capacitor includes removing a portion of the pixel electrode corresponding to the upper electrode of a defective storage capacitor and electrically isolating the upper electrode and the corresponding pixel electrode of the defective storage capacitor. The upper electrode and the scan line or the common line of the defective capacitor are welded together.
    Type: Application
    Filed: August 12, 2008
    Publication date: December 11, 2008
    Applicant: AU OPTRONICS CORPORATION
    Inventor: Han-Chung Lai
  • Patent number: 7453538
    Abstract: An LCD device has data lines and drain electrodes that are not open at crossing areas overlapped with gate lines and gate electrodes. The LCD device includes a gate line arranged on a substrate and having a portion bent angularly and inwardly; a gate electrode projecting from the gate line; a gate insulating layer on the surface of the substrate; a data line overlapped with some of the bent portion of the gate line, the data line perpendicular to the gate line to define a pixel region; a source electrode projecting from the data line; a drain electrode on the gate insulating layer at a fixed interval from the source electrode; an active layer below the data line, the source electrode and the drain electrode; and a pixel electrode in the pixel region.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Yeong Soo Nam, Jae Moon Jung
  • Publication number: 20080278648
    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: Application
    Filed: July 21, 2008
    Publication date: November 13, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventor: Jong-Woong CHANG
  • Patent number: 7450213
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: November 11, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-Soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kyu Lee, Jae Choon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong-Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-Mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Ilyun-Seok Jang, Jung Il Lee
  • Publication number: 20080266481
    Abstract: A laser repair structure and method for TFT panel. A first metal conductor is located in the source-drain layer and having a contact hole to the pixel electrode, and the region of the first metal conductor is within the region of the storage capacitance line. To repair a white defect of a pixel, make extending portions of the first metal conductor to overlap with the gate line of the previous pixel so as to electrically connect them by the laser irradiation. Another choice is setting two second metal conductors located in the gate-electrode layer and partially overlapped with the data line and the first conductor separately, then using laser irradiation to electrically connect one second metal conductor to repair the white defect of a pixel or electrically connect two second metal conductors to repair an open-circuited data line.
    Type: Application
    Filed: July 15, 2008
    Publication date: October 30, 2008
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventor: Chun-An Lin
  • Patent number: 7440074
    Abstract: An object of the present invention is to provide a method for repairing light point defects in which light points can be converted to black spots through a simple process without affecting surrounding pixels, and the repaired pixels can be maintained without their returning to light points even with the passage of time. The present invention provides a method for repairing light point defect pixels of a liquid crystal display device having a liquid crystal panel which comprises a pair of substrates, a liquid crystal layer interposed between the pair of substrates, and a pair of alignment films each of which is provided between the substrate and the liquid crystal layer restraining the orientation of the liquid crystals of the liquid crystal layer.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: October 21, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Kazushige Umetsu
  • Patent number: 7436477
    Abstract: An active substrate is provided, which comprises a switching element comprising a first drive region and a second drive region, a signal line being connected to the first drive region, a pixel electrode connected to the second drive region, a first layer comprising at least one of a semiconductor material and a conductive material, and connected to the pixel electrode, a second layer comprising at least one of a semiconductor material and a conductive material, and connected to the signal line; and an insulating film provided between the first layer and the second layer. At least a portion of the first layer and at least a portion of the second layer overlap each other so that the first layer and the second layer are short-circuited by applying first energy to the insulating film.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: October 14, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mutsumi Nakajima, Ichirou Shiraki, Osamu Sasaki, Hironobu Tatsumi, Hirofumi Katsuse, Masayuki Inoue, Hideo Kasugai, Keisuke Yoshida
  • Patent number: 7433013
    Abstract: A manufacturing method of a liquid crystal display device enables decreasing the fraction defective of a liquid crystal panel upon manufacturing the liquid crystal display device using the liquid crystal dropping model in a large-sized board. The manufacturing method of a liquid crystal display device includes a preliminary liquid crystal coating process, a film thickness measurement process, a liquid crystal discharge condition calculation process, and a liquid crystal coating process. The preliminary liquid crystal coating process scans a plurality of the cell forming areas of the sample board with a droplet discharge head in a predetermined scanning direction, and coats the liquid crystal with a predetermined discharge condition. The film thickness measurement process respectively measures the film thickness of the liquid crystal coated onto the plurality of the cell forming areas.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: October 7, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Iwata, Kazuaki Sakurada
  • Patent number: 7427781
    Abstract: A thin film transistor array including a plurality of lower electrodes and a plurality of common lines for the storage capacitor of pixels is provided. The plurality of lower electrodes is electrically connected to the plurality of common lines by a connecting conductive layer, and the lower electrodes and the pixel electrodes serve as the conductive layers of the capacitor. The electrode branches are formed on the pixel area where the emitting efficiency is poor, the storage capacitance can be improved without decreasing the aperture ratio of the pixels, so as to improve the performance of the liquid crystal display apparatus.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: September 23, 2008
    Assignee: Au Optronics Corporation
    Inventor: Han-Chung Lai
  • Publication number: 20080225196
    Abstract: A liquid crystal display device and a method for fabricating the same are disclosed.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 18, 2008
    Inventor: Eun Hong Kim
  • Publication number: 20080224983
    Abstract: A method and apparatus of compensating for a kick-back voltage to reduce the generation of flicker in a liquid crystal display (LCD). The method of compensating for a kick-back voltage includes correcting input pixel data using a kick-back correction function that meets a condition on which a response characteristic of a voltage detected from a pixel electrode of a liquid crystal cell for a positive input pixel signal and a response characteristic of a voltage detected from the pixel electrode of the liquid crystal cell for a negative input pixel signal become symmetrical without causing a saturation state on a basis of a kick-back voltage measured from an LCD panel to generate corrected pixel data, and driving the LCD panel using the corrected pixel data.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-chul LEE, Jong-seon Kim
  • Patent number: 7425998
    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: November 21, 2006
    Date of Patent: September 16, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-Woong Chang
  • Patent number: 7417692
    Abstract: A laser repair structure and method for TFT panel. A first metal conductor is located in the source-drain layer and having a contact hole to the pixel electrode, and the region of the first metal conductor is within the region of the storage capacitance line. To repair a white defect of a pixel, make extending portions of the first metal conductor to overlap with the gate line of the previous pixel so as to electrically connect them by the laser irradiation. Another choice is setting two second metal conductors located in the gate-electrode layer and partially overlapped with the data line and the first conductor separately, then using laser irradiation to electrically connect one second metal conductor to repair the white defect of a pixel or electrically connect two second metal conductors to repair an open-circuited data line.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: August 26, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Chun-An Lin
  • Publication number: 20080198286
    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: Application
    Filed: April 28, 2008
    Publication date: August 21, 2008
    Inventors: Hsin-Tai Wu, Chao-Liang Lu, Chih-Hsiang Yang, Kuo-Chih Lee
  • Patent number: 7414697
    Abstract: A liquid crystal display has a gate line structure for serving as a storage electrode and a black matrix and performing a repair function. In the liquid crystal display, a gate dummy pattern is formed in such a manner to be extended in the vertical direction from the gate line and to overlap with the data line and the pixel electrode. The gate dummy pattern branches from the gate line, overlaps the edge of a pixel, serves a storage electrode and a black matrix, and permits repair upon breakage of a data line.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: August 19, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Woo Hyuk Choi, Dong Yeung Kwak, Byoung Ho Lim
  • Patent number: 7414679
    Abstract: The present invention relates to a display panel comprising a circuit structure, which comprises at least one data line and a pixel electrode. There is a dummy data line provided between the pixel electrode and the data line, wherein the data line has at least two protrusions extending to the corresponding position of the dummy data line. When the data line is disconnected, repair can be made by welding the protrusions and the dummy data line by laser, and thus no extra circuit is needed.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: August 19, 2008
    Assignee: Chi Mei Optoelectronic Inc.
    Inventor: Chiang-Hung Tseng
  • Publication number: 20080192165
    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 therebetween. 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: November 9, 2006
    Publication date: August 14, 2008
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidetoshi Nakagawa, Toshihide Tsubata, Nobuyoshi Nagashima, Yuhko Hisada
  • Publication number: 20080180629
    Abstract: The present invention provides a method for manufacturing a color filter to facilitate the correction of the defect which is caused by the undesirable mixing of plural color filter materials with different color. Further, the present invention provides a color filter manufactured by the present method for manufacturing the color filter and also a semiconductor device using the color filter manufactured by the present method. In the manufacturing method of the present invention, the color-mixed portion which is undesirably formed during the production of the color-filter by using a plurality of color filter materials is irradiated with a laser beam which is different in transmissivity to each color filter material. This method allows the color filter material which is necessary to remain and the color filter material which is unnecessary to be selectively removed.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 31, 2008
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shuji FUKAI, Kanako KUNIZAKI
  • Publication number: 20080174713
    Abstract: An exemplary liquid crystal display panel (2) includes a plurality of gate lines (21), a plurality of data lines (22), a plurality of pixel regions, and a plurality of repair lines (24). Each pixel region is surrounded by two corresponding gate lines and two corresponding data lines, and each pixel region includes a pixel electrode (20). Each repair line is provided at a respective one of the pixel regions. Each repair line is a substantially rectangular-shaped ring, two opposite long sides of the ring are located at two opposite sides of a corresponding data line or a corresponding gate line between two corresponding adjacent pixel electrodes, two opposite short sides of the ring cross the corresponding data line or gate line, and the repair line is electrically isolated from the corresponding data line or gate line. A method for repairing the liquid crystal display panel is also provided.
    Type: Application
    Filed: December 11, 2007
    Publication date: July 24, 2008
    Inventors: Sheng-Hsien Cheng, Chien-Ting Lai
  • Publication number: 20080170195
    Abstract: A display panel includes an array substrate, an opposite substrate facing the array substrate, and a liquid crystal layer interposed between the array and opposite substrates. The array substrate includes a gate wiring, a data wiring, a pixel section, a sensor wiring section, a sensor electrode section and a sensor pad section. The gate wiring is formed in a first direction. The data wiring is formed in a second direction crossing the first direction. The pixel section is electrically connected to the gate and data wirings. The sensor wiring section is spaced apart from the gate and data wirings. The sensor electrode section is electrically connected to the sensor wiring section. The sensor pad section applies a test voltage to the sensor wiring section in order to inspect a display panel defect. Therefore, a short defect, which is generated between the array substrate and the opposite substrate, may be easily inspected.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Sun-Ja KWON, Jin JEON, Young-Gi PARK
  • Publication number: 20080170167
    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: Application
    Filed: January 11, 2007
    Publication date: July 17, 2008
    Inventor: Ting-Hui Su
  • Publication number: 20080158466
    Abstract: A liquid crystal display device includes: a liquid crystal display panel having a plurality of data lines and a plurality of gate lines crossing each other; a data drive circuit which supplies data voltages to the data lines; a gate drive circuit which supplies scan pulses to the gate lines; and first dummy pads on a substrate of the liquid crystal display panel at both sides of the data drive circuit, and wherein the data drive circuit is joined onto the substrate with a first anisotropic conductive film and both sides of the first anisotropic conductive film are joined to the first dummy pads.
    Type: Application
    Filed: November 29, 2007
    Publication date: July 3, 2008
    Inventor: Woo Chang Lee
  • Patent number: 7394508
    Abstract: A display device includes a display panel, a driving circuit and a repair line. The display panel has a display region and a peripheral circuit region adjacent to the display region. The peripheral circuit region has a driving circuit bonding region and a plurality of conductive wires extending from the display region into the driving circuit bonding region. The driving circuit is electrically connected to the display region through the driving circuit bonding region and the conductive wires. The repair line is distributed in the peripheral circuit region and the driving circuit, wherein the repair line has a repair portion located between the driving circuit bonding region and the display region. As described above, the repair process of the display device provided by the present invention is simpler so as to save the cost and time of the successive processes.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: July 1, 2008
    Assignee: Au Optronics Corporation
    Inventors: Shyh-Feng Chen, Chu-Yu Liu, Kuei-Sheng Tseng, Po-Jen Chiang
  • Patent number: 7394518
    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: March 6, 2006
    Date of Patent: July 1, 2008
    Assignee: Hannstar Display Corp.
    Inventors: Hong-Jye Hong, George Hsu, Chih-Wei Wang
  • Publication number: 20080143914
    Abstract: The present invention is a substrate for a display device comprising an active matrix substrate and an opposed substrate which are opposed to each other with a display medium layer interposed therebetween, said active matrix substrate including a pixel electrode arranged in a matrix shape on the side of the display medium layer and said opposed substrate including a common electrode opposing to the pixel electrode on the side of the display medium layer, wherein said 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 said electrode slit is provided outside of a light-blocking region.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 19, 2008
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidetoshi NAKAGAWA, Toshihide TSUBATA, Nobuyoshi NAGASHIMA, Yuhko HISADA
  • Patent number: 7388227
    Abstract: A method for fabricating a liquid crystal display device includes: forming a pixel electrode on a substrate; forming a first conductive layer on the pixel electrode; forming a first photoresist pattern on the conductive layer; forming a source electrode forming portion, a channel forming portion and a pixel electrode forming portion using the first photoresist pattern as a mask; forming a semiconductor layer over an entire surface of the substrate; forming an insulating layer on the semiconductor layer; forming a second conductive layer on the insulating layer; forming a second photoresist pattern on the second conductive layer; forming an active layer using the second photoresist pattern; and forming a gate electrode on the active layer.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: June 17, 2008
    Assignee: LG Display LCD Co., Ltd.
    Inventor: Kum-Mi Oh
  • Patent number: 7388626
    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: August 13, 2004
    Date of Patent: June 17, 2008
    Assignee: AU Optronics Corp.
    Inventors: Hsin-Tai Wu, Chao-Liang Lu, Chih-Hsiang Yang, Kuo-Chih Lee
  • Publication number: 20080129950
    Abstract: In the repair method and the apparatus, geometry data of a defective section is extracted from defect image data obtained by picking up an image of a defective section on a glass substrate 2; the angle of each the micromirror of a DMD unit 16 is controlled in high speed in accordance with the geometry data; and the cross-sectional shape of the laser light r reflected by these micromirrors are conformed substantially to the shape of the defective section to be illuminated to the defective section.
    Type: Application
    Filed: September 21, 2007
    Publication date: June 5, 2008
    Applicant: Olympus Corporation
    Inventor: Masahiro Abe
  • Publication number: 20080117349
    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: November 2, 2007
    Publication date: May 22, 2008
    Inventors: Jong-woong CHANG, Shin-tack Kang
  • Patent number: 7375374
    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: July 18, 2007
    Date of Patent: May 20, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chin-Sheng Chen, Chih-Hung Liu, Chien-Hsing Hung, Kun-Yuan Huang
  • Patent number: 7365825
    Abstract: An LCD device including: a gate line on a substrate along a first direction; a data line in a second direction perpendicular to the gate line to define a unit pixel region, wherein the data line has recesses on a first side of the data line; a repair pattern having ends crossing the data line at the recesses of the data line; a thin film transistor adjacent to a crossing of the gate line and the data line, the thin film transistor including a semiconductor layer, a gate electrode, a drain electrode and a source electrode; a passivation layer over an entire surface of the substrate including the thin film transistor; and a pixel electrode connected to the drain electrode through the passivation layer.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: April 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyun Tae Kim