Patents Represented by Attorney McKenna Long and Aldridge LLP
  • Patent number: 8349194
    Abstract: A method for manufacturing a flexible electrophoretic display device, including: providing a metal mother substrate having a first thickness, including a unit display panel region and a non-display region adjacent the unit display panel region; forming a display element in the unit display panel region; forming a groove in the non-display region of the mother substrate; cutting the mother substrate along the groove to separate the unit display panel region from the mother substrate; thinning the substrate of the separated unit display panel region; and forming an electrophoretic ink film on the unit display panel region.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 8, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Han Paek, Kyoung Mook Lee, Sung Hwan Kim, Su Ho Kim
  • Patent number: 8334962
    Abstract: A liquid crystal display device comprises: a first substrate and a second substrate facing and spaced apart from each other, the first substrate and the second substrate including an active area, a signal input area and a pad area, the signal input area and the pad area being disposed at a periphery of the active area; a gate line and a data line on the first substrate in the active area, the gate line and the data line crossing each other; first connection lines and second connection lines in the signal input area, the first connection lines extending to the pad area and crossing the second connection lines; a gate connection pattern contacting the first connection lines and the second connection lines; a common electrode on the second substrate; a shortage-preventing pattern on the common electrode and corresponding to the gate connection pattern; a seal pattern surrounding the active area, the seal pattern including a conductive ball; and a liquid crystal layer between the first and second substrates in th
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 18, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Hoon Chang, Min-Jung Kim
  • Patent number: 8329777
    Abstract: A value document, such as a banknote, is printed using a printing ink or varnish comprising an aqueous dispersion of a preferably aliphatic polycarbonate polyurethane and/or a polyether or polyester polycarbonate polyurethane copolymer having a particle size range from 10 to 400 nm and an acid value no greater than 10 mg KOH/g.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 11, 2012
    Assignee: Sun Chemical B.V.
    Inventor: Clive Edward Lawrence
  • Patent number: 8330910
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 11, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Guk Kim, Won Seok Kang, Joo Soo Lim
  • Patent number: 8325314
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other to define a pixel region on a first substrate; a thin film transistor connected to the gate and data lines; and first and second height adjusters; an opposing substrate facing the array substrate; a liquid crystal layer between the array substrate and the opposing substrate; a gap spacer corresponding to the first height adjuster and contacting the array substrate and the opposing substrate; a first press-buffer spacer corresponding to the second height adjuster, contacting the opposing substrate and spaced apart from the array substrate; and a second press-buffer spacer contacting the opposing substrate and spaced apart form the array substrate, wherein a distance between the first press-buffer spacer and the array substrate is substantially less than a distance between the second press-buffer spacer and the array substrate.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: December 4, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Ho Kang, Young-Il Seo, Sung-Hyun Cho
  • Patent number: 8322542
    Abstract: A cassette for receiving substrates includes a frame, and a plurality of support plates protruding from both lateral sides of the frame, wherein the support plates have a width and length large enough to support the substrates without a bending and an access space for a robot arm to transport the substrates, an area of the access space corresponding to an area of the robot arm.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: December 4, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Moo Yeol Park, Sung Su Jung
  • Patent number: 8319920
    Abstract: A transflective liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line on an inner surface of the first substrate; a data line crossing the gate line to define a pixel region including a reflective portion and a transmissive portion, wherein the transmissive portion has a polygonal shape inscribed in a rectangle, and a circumference of the transmissive portion is less than the circumference of the rectangle; a thin film transistor connected to the gate line and the data line; a passivation layer on the thin film transistor, the passivation layer having a opening corresponding to the transmissive portion; a reflective layer corresponding to the reflective portion on the passivation layer; a transparent electrode corresponding to the pixel region over the reflective layer; a color filter layer on an inner surface of the second substrate; a common electrode on the color filter layer; and a liquid crystal layer between the common electrode and the
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 27, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Mi-Sook Nam, Su-Seok Choi, Sang-Min Jang
  • Patent number: 8300029
    Abstract: A liquid crystal display device includes: a liquid crystal panel including first and second substrates facing each other and a liquid crystal layer between the first and second substrates, each of the first and second substrates defining a central display region and a peripheral non-display regions; a cover glass integrated touch sensor on the liquid crystal panel, the touch sensor including a plurality of transparent first electrodes and second electrodes formed on a surface of the cover glass facing the liquid crystal panel, wherein the first electrodes and second electrodes cross each other; and a touch signal applicator at a side of the cover glass away from the display region of the liquid crystal panel.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 30, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Deuk Su Lee, In Hyuk Song, Hyung Seok Park
  • Patent number: 8289389
    Abstract: A visual inspector for inspecting a flat panel display device and a visual inspecting method using the same are disclosed. The visual inspector includes an inspection unit including a base frame and a loading stage rotatably coupled to the base frame to load a display panel on a front side thereof and to transmit a light to the flat panel device; a reflective illumination unit installed in the upper space of the inspection unit to illuminate the display panel loaded on the front side of the loading stage; and a transparent illumination unit coupled to the rear side of the loading stage of the inspection unit to illuminate the display panel loaded on the front side of the loading stage.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: October 16, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyeung Sic Yoon, Dong Hyon Nam
  • Patent number: 8289243
    Abstract: A light emitting display is provided. The light emitting display comprises a pixel circuit unit comprising a plurality of pixels that display an image; a data driver that supplies a data signal to the pixel circuit unit; a scan driver that supplies a scan signal to the pixel circuit unit; a gamma correcting unit that supplies a gamma value to the data driver to control the magnitude of the data signal; and a timing controller that applies control signals to the data driver and the scan driver and that supplies a variable gamma control signal that controls the gamma correcting unit to supply the gamma value that changes according to the data driving time.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: October 16, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Ho Baik, In Hwan Kim
  • Patent number: 8289310
    Abstract: A horizontal electric field liquid crystal display (LCD) is disclosed. The horizontal electric field LCD includes a first liquid crystal cell driven by a voltage difference between a first pixel electrode and a second pixel electrode, a second liquid crystal cell driven by a voltage difference between a third pixel electrode and a fourth pixel electrode, a first data line to which a first analog data voltage is supplied, a second data line to which a second analog data voltage and a fourth analog data voltage are supplied, a third data line to which a third analog data voltage is supplied, a first gate line that receives a first scan pulse to select the first liquid crystal cell, a second gate line that receives a second scan pulse to select the second liquid crystal cell, first, second, third, and fourth thin film transistors. The second pixel electrode is spaced apart from the second gate line, and the fourth pixel electrode is spaced apart from the first gate line.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: October 16, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Suwoong Lee, Youngmin Jeong
  • Patent number: 8284352
    Abstract: Disclosed herein are a liquid crystal display panel and a method for fabricating the same wherein color reproducibility and superior image quality are achieved. The liquid crystal display panel comprises a color filter array substrate including a black matrix and a plurality of color filters arranged on a substrate, wherein each of the color filter includes a first color filter, a second color filter and a third color filter, each of them yielding a different color; and at least one selected from a fourth color filter yielding a mixed color of the first and second color filters, a fifth color filter yielding a mixed color of the second and third color filters, and a sixth color filter yielding a mixed color of the first and third color filters.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 9, 2012
    Assignee: LG Display, Ltd.
    Inventors: Gee Sung Chae, Jin Wuk Kim
  • Patent number: 8272729
    Abstract: An ink jet printer for printing a cationic ink jet ink is provided. The printer comprises a print head for printing the ink onto a substrate, a heating means for heating the ink on the substrate, and a source of radiation for curing the heated ink.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 25, 2012
    Assignee: Sun Chemical Corporation
    Inventors: Nigel Anthony Caiger, Hartley David Selman, Shaun Lawrence Herlihy
  • Patent number: 8274488
    Abstract: The present invention relates to a touch location detecting panel and, more particularly, to a touch location detecting panel having a plurality of sensing areas arranged two-dimensionally. The touch location detecting panel of the invention has on a surface at one side of a single film a plurality of sensing areas arranged two-dimensionally. Each of the sensing areas includes a plurality of partitioned areas electrically isolated from each other, and the partitioned areas are respectively connected to separate channels of a circuit for detecting a user's touch on each of the partitioned areas. Accordingly, durability and productivity of the touch location detecting panel can be improved by simplifying the panel structure.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: September 25, 2012
    Assignee: Melfas, Inc.
    Inventor: Sang-ho Bae
  • Patent number: 8253890
    Abstract: A high aperture active matrix liquid crystal display (AMLCD) includes pixel electrodes in respective pixels which overlap adjacent address lines. The color filters are formed on the active substrate in a manner such that the filters also overlap the address lines and function as an insulating layer between the pixel electrodes and address lines in the areas of overlap. Accordingly, line-pixel capacitances are reduced and the resulting AMLCD is easier to manufacture. The total number of process step in manufacturing is reduced, and plate-to-plate (active to passive plate) alignment is much easier and less important.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: August 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: John Z. Z. Zhong, Willem den Boer
  • Patent number: 8253659
    Abstract: To efficiently compensate a threshold value of a driving transistor. In a state where a first switching transistor is non-conductive and a second switching transistor in conductive, a sampling transistor is made conductive and a reference voltage is supplied from a signal line to write a threshold voltage of a driving transistor to a first capacitance. After that, in a state where first and second switching transistors and are non-conductive, the sampling transistor is made conductive and a signal voltage from the signal line is written to the first capacitance. Further, after that the sampling transistor is put into a non-conductive state, and the first and second switching transistors are put in a conductive state, to drive the driving transistor and supply current to a light emitting element.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 28, 2012
    Assignee: Global OLED Technology, LLC.
    Inventors: Yuichi Maekawa, Koichi Miwa
  • Patent number: 8248572
    Abstract: A method for cutting a liquid crystal display panel includes transferring a pair of mother substrates on which a plurality of panel regions have been disposed to a scribing unit; forming first and second prearranged cut lines on front and rear surfaces of the mother substrates using a scribing unit; transferring the mother substrates with the first and second prearranged cut lines formed thereon to a breaking component; and moving a transfer unit which includes a body having a plurality of suction members and a steam generator installed at an edge of the body to an upper side of the mother substrates, and separating liquid crystal display panels formed at the panel regions from a dummy glass therearound while spraying steam onto the surface of the mother substrates through the steam generator of the transfer unit.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: August 21, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jung-Deog Yoo, Byoung-Mok Ha
  • Patent number: 8248553
    Abstract: A LOG-type liquid crystal display panel and a fabricating method thereof that reduces a line resistance of a LOG-type signal line group within the confined area. In the panel, a picture display part has a plurality of liquid crystal cells, each of which is arranged at each crossing area between gate lines and data lines. Line on glass type signal lines are provided at an outer area of the picture display part by a line on glass system to apply driving signals required for driver integrated circuits for driving the gate lines and the data lines and to connect the driver integrated circuits to each other. The line on glass type signal lines are separately provided at different metal layers having an insulating film therebetween.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: August 21, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Dae Lim Park, Seong Soo Hwang, Su Hwan Moon
  • Patent number: 8243218
    Abstract: An LCD device and a method for manufacturing the same are disclosed, in which a width of a gate line is decreased by forming a storage capacitor of a high capacitance with a small area, and by improving an aperture ratio, thereby obtaining high picture quality.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: August 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Suk Yoo, Woo Hyun Kim
  • Patent number: 8243000
    Abstract: A data driver IC of a liquid crystal display is provided. The data driver IC includes a latch circuit latching digital pixel data, a digital-to-analog converter converting an output of the latch circuit into an analog video signal, and an analog amplifier amplifying the analog video signal converted in the digital-to-analog converter. The analog amplifier includes a NAND gate, a capacitor connected to an input terminal of the NAND gate, and a switch for connecting the input terminal and an output terminal of the NAND gate.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: August 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Kyoung Moon Lim