Search Patents
  • Thin film transistor array substrate and method for manufacturing the same
    Patent number: 6956237
    Abstract: A thin film transistor array substrate and a method for manufacturing the same is disclosed, in which it is possible to prevent mobile ions contained in a substrate from penetrating into a semiconductor layer by the gettering effect or neutralization in case soda lime glass is used for the substrate. The method includes forming a buffer layer on a substrate; doping impurity ions in the buffer layer; and forming a pixel electrode and a thin film transistor including a semiconductor layer on the buffer layer.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: October 18, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae Young Oh, Seung Hee Nam
  • Thin film transistor having silicon nanowire and method of fabricating the same
    Patent number: 7704806
    Abstract: A thin film transistor includes: a silicon nanowire on a substrate, the silicon nanowire having a central portion and both side portions of the central portion; a gate electrode on the central portion; and a source electrode and a drain electrode spaced apart from the source electrode on the both side portions, the source electrode and the drain electrode electrically connected to the silicon nanowire, respectively.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: April 27, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Gee-Sung Chae, Mi-Kyung Park
  • Liquid crystal display device and fabricating method thereof
    Patent number: 7212255
    Abstract: A liquid crystal display device and fabricating method, wherein at least two storage capacitors disposed between the gate line and the capacitor electrode making the same potential as the gate line are provided, whereby the capacitance of the entire storage capacitor is enlarged due to a parallel connection of the capacitors, so that flicker and cross talk can be reduced to improve picture quality.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 1, 2007
    Assignee: LG.Phillips LCD Co., Ltd.
    Inventor: Jae Young Chung
  • Liquid crystal display device
    Patent number: 6861665
    Abstract: An LCD device includes a plurality of data pads; an LCD panel defined by a plurality of pad regions; a first shorting bar connected to odd numbered data pads among the plurality of data pads; a second shorting bar connected to even numbered data pads among the plurality of data pads; and a test pad formed in a predetermined portion of a pad region among the plurality of pad regions to apply a signal voltage for on/off testing to the first shorting bar and the second shorting bar.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: March 1, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Ik Soo Kim
  • Transparent display device and method for manufacturing the same
    Patent number: 10199446
    Abstract: Disclosed are a display device and a method of manufacturing the same. The display device includes a light emitting device including an anode electrode, a light emitting layer, and a cathode electrode, a driving transistor configured to supply a driving current to the light emitting device, and a capacitor including one electrode and other electrode each formed of a transparent conductive material. The one electrode and the other electrode of the capacitor overlap each other with at least one insulation layer therebetween.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: February 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: EuiTae Kim, DooHyun Yoon, Hyoung-Su Kim, KiSeob Shin
  • Thin film transistor and method of manufacturing the same
    Patent number: 5903013
    Abstract: A thin film transistor includes a substrate, a gate electrode formed on the substrate, and including opposing edge portions and a middle portion. An insulating film is formed on the surface of the gate electrode having a greater thickness on one of the gate edge portions. An active region is formed on the surface of the insulating film and the exposed substrate. The active region includes an off-set region, a channel region, a source region, and a drain region.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: May 11, 1999
    Assignee: LG Semicon Co., Ltd.
    Inventor: Sung Kge Park
  • Organic light emitting device
    Patent number: 8148729
    Abstract: An organic light emitting device is disclosed. The organic light emitting device includes a substrate, a display unit that is positioned on the substrate and includes a subpixel and a monitor pixel, a first line supplying a voltage to the subpixel and the monitor pixel, a second line supplying a direct current (DC) power to the monitor pixel, a third line that transfers an electrical signal used to display an image on the subpixel, and a shield layer that is positioned on or under the second line and is electrically connected to the first line.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: April 3, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Seungtae Kim
  • Liquid crystal display device with double metal layer source and drain electrodes and fabricating method thereof
    Patent number: 7170571
    Abstract: A liquid crystal display device including a substrate; a gate electrode over the substrate; a first semiconductor layer over the substrate, and a source electrode and a drain electrode over the first semiconductor layer. The source and drain electrodes having a first metal layer and a second metal layer formed in a same pattern and a defining a separation between the source electrode and drain electrode.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: January 30, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Gee Sung Chae
  • Pixel with improved aperture ratio and display device including the same
    Patent number: 11825695
    Abstract: A pixel is discussed, which is disposed in a pixel area defined by a gate line, a data line and a pixel power line, and includes a light emission portion and a pixel circuit, wherein the pixel circuit can include a protrusion electrode protruded from the gate line along a length direction of the data line, and first and second thin film transistors disposed in parallel between the light emission portion and the gate line, using the protrusion electrode as a gate electrode.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: November 21, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Soyoung Lee, Hun Jang, Daeyoung Seo
  • Thin film transistor, method for fabricating the same and display device
    Patent number: 7683367
    Abstract: A method for fabricating a TFT on a substrate includes forming a gate electrode; forming a semiconductor layer insulated from the gate electrode and partially overlapped with the gate electrode; forming a gate insulating layer between the gate electrode and the semiconductor layer, the gate insulating layer including a sol-gel compound; and forming source and drain electrodes at both sides of the semiconductor layer.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: March 23, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Gee Sung Chae, Jae Seok Heo, Woong Gi Jun
  • Liquid crystal display and fabricating method thereof
    Patent number: 7106390
    Abstract: A liquid crystal display device and a fabricating method thereof that are capable of preventing breakage of a pixel electrode. In the device, the protective layer pattern is provided at the overlapping area between the storage electrode and the pixel electrode to separate the storage electrode and the pixel electrode. Accordingly, the protective layer pattern is formed at the storage capacitor area to improve step coverage of a transparent conductive material.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: September 12, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young Hun Ha, Jae Moon Soh, Jong Woo Kim
  • COT type liquid crystal display device
    Patent number: 9977280
    Abstract: Disclosed is a color filter on transistor (COT) type liquid crystal display device that may include red, green, blue and white pixels on a substrate; red, green and blue color filters in the red green and blue pixels, respectively, and a white pattern in the white pixel; a planarization layer on the red, green and blue color filters; and a column spacer on the planarization layer, wherein the column spacer and the white pattern are made of the substantially same material.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: May 22, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Tae-Young Kim, Woo-Jung Byun, Sang-Ho Lee
  • Thin film transistor
    Patent number: 5898187
    Abstract: A thin film transistor includes a substrate, a gate electrode on the substrate, an insulating layer on the gate electrode, source and drain electrodes having side surfaces facing each other over the insulating layer, a carrier traveling path between the source and drain electrodes being shorter than a length of the gate electrode, an active layer over the source and drain electrodes and the insulating layer, and a silicide layer on at least one of the side surfaces of the source and drain electrodes.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: April 27, 1999
    Assignee: LG Electronics Inc.
    Inventor: Woong-Kwon Kim
  • Aligned semiconductor structure
    Patent number: 6025605
    Abstract: The number of mask steps used to fabricate a TFT in an AMLCD is reduced. In particular, source and drain metallizations, as well as doped and undoped semiconductor layers are patterned at the same time, and the source and drain metallizations and the doped semiconductor layer are etched in a single etching step using an insulating passivation layer as a mask to form source and drain electrodes. Manufacturing costs can be reduced and the manufacturing yield can be improved.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: February 15, 2000
    Assignee: LG Electronics Inc.
    Inventor: Ki-Hyun Lyu
  • ARRAY SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICES AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20150129877
    Abstract: An array substrate for LCD devices and a method of manufacturing the same are provided. By using a structure where an empty space is secured in a data line area as in a DRD structure in which the number of data lines is reduced by half, a capacitance is sufficiently secured by forming a sub storage capacitor in the data line area of the empty space, and thus, an area of a main storage capacitor can be reduced. Accordingly, the cost can be reduced, and moreover, an aperture ratio can be enhanced.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: SungJun CHO, YoungMin JEONG, KyeuSang YOON, YeonHee JANG
  • Light emitting device and method of manufacturing the same
    Patent number: 7737443
    Abstract: A light emitting device comprises an anode electrode layer disposed in a first direction, a cathode electrode layer disposed in a second direction different from the first direction, an emitting area with a pixel forming on an area crossed by the anode electrode layer and the cathode electrode layer and a sub-electrode layer disposed outside of the emitting area and electrically connected with at least two the anode electrode layers.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 15, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hak Su Kim, Hyoung Yun Oh, Yoon Heung Tak
  • Array substrate for liquid crystal display and method for manufacturing the same
    Patent number: 8933454
    Abstract: An array substrate for a liquid crystal display and a method for manufacturing the same are disclosed. The array substrate for a liquid crystal display includes a source electrode and a drain electrode and an organic insulating film positioned on the source electrode and the drain electrode. The organic insulating layer includes a first contact hole exposing the drain electrode, and having a stepped level difference formed on the sloping surface of the first contact hole.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jinpil Kim, Kiyoung Jung, Keumkyu Min, Sangsu Jang
  • Method of fabricating X-ray detecting device
    Patent number: 7268366
    Abstract: A method of fabricating an X-ray detecting device that is capable of preventing breakage of a transparent electrode. In the method, patterning of first and second insulating films occurs at different etching rates, with an etching ratio of the second insulating material to the first insulating material being greater than 1. Accordingly, undercut of the first and second insulating materials can be prevented. This stabilizes the step coverage of a subsequently formed transparent electrode.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: September 11, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Kyo Ho Moon
  • Thin film transistor and method of fabricating the same
    Patent number: 8216889
    Abstract: A thin film transistor includes a multi-coaxial silicon nanowire unit including a plurality of coaxial silicon nanowires on a substrate, the multi-coaxial silicon nanowire unit including a central portion and end portions of the central portion; a gate electrode on the central portion; and a source electrode and a drain electrode on the respective end portions, respectively, so as to electrically connect to the multi-coaxial silicon nanowire unit.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 10, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Gee-Sung Chae, Mi-Kyung Park
  • Display device
    Patent number: 11682750
    Abstract: Embodiments of the present invention relate to a display device in which, in a structure in which an oxide semiconductor thin film transistor is disposed on an upper layer of a low temperature polycrystalline silicon thin film transistor, the hydrogen adsorption layer is disposed on the capacitor electrode located on the driving transistor among low temperature polycrystalline silicon thin film transistors, so that it is possible to prevent the reduction of an S factor due to the re-hydrogenation of the driving transistor in the heat treatment process of the oxide semiconductor thin film transistor.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 20, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: KyungMo Son, ShunYoung Yang