Patents Assigned to LG.Philips LCD Co.
  • Patent number: 7361285
    Abstract: A method for fabricating a cliché including: providing a transparent glass substrate; depositing a metal layer on the substrate; patterning the metal layer and thereby forming a first metal pattern; etching the glass substrate by using the first metal pattern as a mask and thereby forming a first convex pattern; patterning the first metal pattern and thereby forming a second metal pattern; and etching the first convex pattern by using the second metal pattern as a mask and thereby forming a second convex pattern.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Chul-Ho Kim
  • Patent number: 7362392
    Abstract: A liquid crystal display device, and a method of fabricating such a liquid crystal display device, that uses a ferroelectric liquid crystal (FLC). Additives are added to the ferroelectric liquid crystal. The additives are then used to form polymer networks, beneficially by exposure to ultraviolet light. Suitable additives include an acrylate compound.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Suk-Won Choi, Su-Seok Choi
  • Patent number: 7362399
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates, a plurality of gate and data bus lines defining pixel regions and arranged on the first substrate, a common line in the pixel regions, a pair of first and second electrodes parallel to each other applying plane electric fields in the pixel regions, and a liquid crystal layer between the first and second substrates, d?n being in the range of 0.29-0.36 um, where d is the thickness of the liquid crystal layer, and ?n is the refractive anisotropy of the liquid crystal molecule.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Yong Sung Ham
  • Patent number: 7362405
    Abstract: A method of fabricating a liquid crystal display device includes providing a first substrate, forming an alignment layer on the first substrate using an ink jet method to form a plurality of holes that expose portions of the first substrate, and forming a spacer within each of the plurality of holes using the ink jet method.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Kyung-Su Chae, Hyun-Ho Song
  • Patent number: 7362291
    Abstract: A liquid crystal display device includes a controller arranged on a data printed circuit board for receiving externally generated video data and clock signals and a resistor for removing electromagnetic noise generated at the controller. Electromagnetic noise such as ESD, interference from other signals, etc., which might be transmitted to a gate driver IC through a resistor formed on a data printed circuit board can be eliminated using a ground voltage and picture quality can be thereby be improved.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyong Yerl Park
  • Patent number: 7361535
    Abstract: A thin film transistor includes a substrate, a crystallized semiconductor layer formed over the substrate having a channel region, low-density impurity regions and high-density impurity regions, a gate insulating layer formed on the crystallized semiconductor layer, a first gate electrode formed on the gate insulating layer having a width corresponding to the channel region, a second gate electrode formed on the first gate electrode and on the gate insulating layer such that the second gate electrode overlaps the low-density impurity regions and a source electrode and a drain electrode respectively contacting the high-density impurity regions.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Dae Hyun Nam
  • Patent number: 7362389
    Abstract: An LCD device and a fabrication method having a reduced number of masks and simplified fabrication processes. The method includes providing a substrate, forming an active pattern on the substrate, forming a first insulating layer on the substrate, forming a gate electrode and a pixel electrode on the substrate, forming a second insulating layer provided with a contract hole on the substrate, and forming source and drain electrodes respectively connected to a source region and a drain region through the contact hole.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: April 22, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Joon Young Yang, Yong In Park, Sang Hyun Kim
  • Patent number: 7361240
    Abstract: An apparatus for fabricating an LCD panel includes first and second alignment treatment units for performing alignment treatments on first and second base substrates, a seal pattern forming unit for forming at least one seal pattern on the alignment-treated first base substrate, a cleaning unit for cleaning the first base substrate on which the at least one seal pattern has been formed, a disconnection examining unit operatively coupled to the cleaning unit for examining the at least one seal pattern to determined the presence of defective breaks in the at least one seal pattern, first and second buffer units for temporarily holding the first and second base substrates, respectively, and an attaching unit for loading the temporarily held first and second base substrates and for attaching the loaded first and second base substrates.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Kwang-Jin Kim
  • Patent number: 7362395
    Abstract: A liquid crystal display panel having a built in driving circuit according to the present invention includes liquid crystal cells arranged in a matrix form in a display area of the panel and a driving circuit disposed outside the display area in a non-display area to drive the liquid crystal cells. The liquid crystal display panel also includes a plurality of LOG-type signal lines disposed at a LOG area within the non-display area to supply a plurality of signals to the driving circuit. In addition, the liquid crystal display panel includes a black matrix disposed in the non-display area excluding the LOG area so that the black matrix is absent in the LOG area.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Binn Kim, Soo Young Yoon, Min Doo Chun
  • Patent number: 7362391
    Abstract: The present invention concerns a liquid crystal display device including: a substrate; a plurality of thin film transistors each including a gate electrode, a source electrode, and a drain electrode; a gate line and a data line electrically connecting with the gate electrode and the source electrode, respectively; and a pixel electrode electrically connecting with the drain electrode, wherein overlapping widths between the gate electrode and the source and drain electrodes vary in accordance with the position of the thin film transistor.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Joun-Ho Lee, Doo-Hyun Ko
  • Patent number: 7363107
    Abstract: A substrate transfer system is used in fabricating a liquid crystal display (LCD) device. The system includes a cassette having a bar code, a cassette stocker to store the cassette; an auto guided vehicle that is able to transfer the cassette; a moving path unit to determine a moving path of the auto guided vehicle, a plurality of process stages at which processes are conducted on a substrate during fabrication of the LCD device, and a host to control the cassette stocker, the auto guided vehicle and the process stages. At least one of the auto guided vehicle and the cassette stocker having a bar code reader.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Kyung-Su Chae, Hyun-Ho Song
  • Publication number: 20080088828
    Abstract: A polarization direction measuring apparatus includes: a first polarizing plate having an unknown polarization direction about a reference axis; a sample whose polarization direction is to be measured; a rotatable sample holder on which the sample is mounted in a first direction and a second direction opposite to the first direction, wherein the sample holder rotates the sample along a reference axis in the azimuth direction; a light source that generates light passing though the first polarizing plate and the sample; and a light detector detecting light generated by the light source that passes though the first polarizing plate and the sample.
    Type: Application
    Filed: June 29, 2007
    Publication date: April 17, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Yong Ham, Jong Moon, Jin Jeong
  • Patent number: 7357536
    Abstract: A backlight unit for effectively controlling a heat absorption operation required under a high temperature condition and a heat emission operation required under a low temperature condition to increase lamp performance and lamp lifespan, and achieve an enhanced initial brightness increase effect includes: a cover bottom including a first portion, a second portion spaced apart from the first portion, and a third portion connecting the first and second portions; a lamp arranged at the first portion of the cover bottom; and a current direction controller connected to the first and second portions and adapted to control a direction of current supplied to the cover bottom according to a Thomson's coefficient of the cover bottom. A method for controlling a temperature of a backlight unit includes controlling the direction of current supplied to the cover bottom according to a Thomson's coefficient of the cover bottom to emit or absorb heat.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Moon Chul Sung, Kyu Tae Lee
  • Patent number: 7359016
    Abstract: A reflective type liquid crystal display device includes: first and second substrates facing each other and having a transmissive portion and a reflective portion; a first polarizing plate on an outer surface of the first substrate; a transparent electrode over an inner surface of the first substrate; a reflective electrode having an open portion corresponding to the transmissive portion; a retardation film on an outer surface of the second substrate, the retardation film including a first portion having a first retardation value and a second portion having a second retardation value different from the first retardation value; a second polarizing plate on the retardation film; a common electrode on an inner surface of the second substrate; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: April 15, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Kyoung-Su Ha
  • Patent number: 7357963
    Abstract: A sequential lateral solidification apparatus includes a laser generator for generating and emitting a laser beam; an X-Y stage movable in two orthogonal axial directions; and a mask arranged between the laser generator and the X-Y stage. The mask has a plurality of slits through which the laser beam passes. An objective lens for scaling down the laser beam is arranged between the mask and the X-Y stage. A mask stage is connected to the mask for controlling minute movement of the mask for crystallizing amorphous silicon in one block.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Yun-Ho Jung
  • Patent number: 7358195
    Abstract: In etching a metal line formed as a dual layer of aluminum alloy and molybdenum, the metal line consisting of the dual layer of aluminum alloy and molybdenum is etched through one-time wet etching by applying the etchant including HNO3, HClO4, a Ferric compound (Fe3+), and a Flouro compound (F?), the process can be reduced and a metal line having a good profile can be formed.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon-Ho Choi, Hyuk-Cheol Son, Kum-Chul Oh, Seung-Hwan Chon, Young-Chul Park
  • Patent number: 7359022
    Abstract: A wire structure of a display device is disclosed. Undesirable short at upper wires can be repaired through the laser cutting while preventing a damage to the lower wires through the through hole provided at the lower wires of the region where the upper wires are mutually isolated.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Ji-Young Ahn, Gyo-Won Chin
  • Patent number: 7358528
    Abstract: A method for fabricating a liquid crystal display includes providing a first substrate having a pixel part and a driving circuit part, forming a gate electrode in the pixel part of the first substrate, forming a first insulation film, a first amorphous silicon thin film and a second amorphous silicon thin film on the first substrate, forming a first conductive film on the first substrate, having the first insulation film, the first amorphous silicon thin film, and the second amorphous silicon thin film, selectively patterning the first conductive film, the second amorphous silicon thin film and the first amorphous silicon thin film to form an active pattern in each of the pixel part and the driving circuit part of the first substrate and source and drain electrodes, crystallizing the first amorphous silicon thin film constituting the active pattern of the driving circuit part, forming a second insulation film on the first substrate, forming a pixel electrode in the pixel part and a gate electrode in the drivi
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Sung Ki Kim, Yong Jin Cho, Hae Yeol Kim, Juhn Suk Yoo
  • Patent number: 7358756
    Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing an inspection apparatus as a removable portion of the liquid crystal display device; inspecting the display part of the liquid crystal display device using the inspection apparatus; removing the inspection apparatus from the liquid crystal display device after the inspection is completed; and attaching driving circuits to the liquid crystal display device having the inspection apparatus removed therefrom.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: April 15, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Jong Dam Kim, Hyun Kyu Lee, Yong Jin Cho, See Hwa Jeong
  • Patent number: 7359014
    Abstract: A liquid crystal display (LCD) device includes a first substrate including a plurality of first regions and second regions, the first and second regions not overlapping each other, a black matrix layer formed on the first substrate in the second regions, a plurality of first color filter layers formed in the first regions and overlapping edges of the black matrix layer, and a plurality of second color filter layers formed on the black matrix layer, each of the second color filter layers between the adjacent first color filter layers.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: April 15, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Kee Seok Choi, Jin Ha Kim