Search Patents
  • Thin film transistor (TFT) type optical detecting sensor
    Patent number: 6445003
    Abstract: A TFT type optical detecting sensor includes a capacitor, a sensor TFT, and a switching TFT each having an active layer with a channel having an elongated width. The width of the channel of the sensor TFT is substantially defined by a distance of a side of the pixel excluding the switching source wire and sensor drain wire. The first electrode of the capacitor of the optical detecting sensor is electrically connected to the sensor gate electrode of the sensor TFT.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: September 3, 2002
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Youn Gyoung Chang, Jeong Hyun Kim, Se June Kim, Jae Kyun Lee
  • Organic light emitting diode display and fabricating method thereof
    Publication number: 20100051910
    Abstract: An organic light emitting diode display device includes a switch TFT and a drive TFT formed on a substrate; an overcoat layer formed on the TFTs; a drain contact hole exposing portions of a drain electrode of the drive TFT by removing portions of the overcoat layer; a first electrode contacting to the drain electrode of the drive TFT; a bank pattern exposing an aperture area of a pixel; an organic layer formed on the first electrode; and a second electrode formed on the organic layer, wherein the bank pattern blocks regions where the drain contact hole is formed.
    Type: Application
    Filed: December 22, 2008
    Publication date: March 4, 2010
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Heedong Choi
  • Thin film transistor, display device and method of manufacturing the same
    Patent number: 10199507
    Abstract: A thin film transistor and a method of manufacturing the same, and a display device and a method of manufacturing the same are disclosed, in which the thin film transistor substrate comprises an active layer formed on a substrate; a gate electrode controlling electron transfer within the active layer; a source electrode connected with one end area of the active layer; a drain electrode connected with the other end area of the active layer; and a light-shielding layer formed under the active layer to shield light from entering the active layer.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: February 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Joon Jeon, Ki Sul Cho, Seong Moh Seo
  • TFT type optical detecting sensor implementing different TFTs and the fabricating method thereof
    Publication number: 20020024097
    Abstract: A thin film transistor optical detecting sensor includes an array substrate having a transparent substrate, a plurality of sensor thin film transistors disposed on the transparent substrate, each having a first silicon layer of a first thickness, a plurality of storage capacitors, each connected with a corresponding one of the plurality of sensor thin film transistors, storing charges of an optical current, and a plurality of switch thin film transistors, each having a second silicon layer of a second thickness less than the first thickness.
    Type: Application
    Filed: August 28, 2001
    Publication date: February 28, 2002
    Applicant: LG. Phillips LCD Co., Ltd.
    Inventor: In-Su Joo
  • Liquid crystal display and method for fabricating the same
    Patent number: 5940151
    Abstract: A liquid crystal display includes a plurality of pixel TFTs in a matrix form on an insulating substrate, a plurality of drive circuit TFTs having a CMOS structure on the peripheral portion of the pixel TFTs, the drive circuit TFTs including a first conductivity type TFT having the structure the same as the pixel TFT and a second conductivity type TFT having a structure different from the pixel TFT, a plurality of signal lines connected to the pixel TFTs, and a plurality of scanning lines crossing the signal lines.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: August 17, 1999
    Assignee: LG Electronics, Inc.
    Inventor: Yong-Min Ha
  • Thin film transistor array substrate and fabricating method thereof
    Patent number: 7157303
    Abstract: A thin film transistor array substrate structure includes a plurality of data lines; a plurality of gate lines intersecting the data lines to define pixel areas, the gate line being adjacent to at least two pixel areas; a plurality of common lines disposed between the at least two pixel areas; a plurality of thin film transistors formed at each intersection between the gate lines and the data lines; a plurality of common electrodes provided substantially parallel to the common lines; and a plurality of pixel electrodes connected to the thin film transistors.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: January 2, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Hyeon-Ho Son
  • Narrow bezel large area organic light emitting diode display
    Patent number: 9735388
    Abstract: The present disclosure relates to a narrow bezel large area organic light emitting diode display. An organic light emitting diode display includes a substrate having a display area and a non-display area; a gate driver disposed in the non-display area; a ground line overlapping on the gate driver with a passivation layer; an anode electrode disposed in the display area; an organic light emission layer disposed in the display area and stacked on the anode electrode; and a cathode electrode stacked on the organic light emission layer and contacting the ground line.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: August 15, 2017
    Assignee: LG Display Co., Ltd.
    Inventor: Jungchul Kim
  • Organic light emitting display panel
    Patent number: 9425243
    Abstract: An organic light emitting display panel includes: a pixel defined by an intersection of one of a plurality of data lines and one of a plurality of gate lines, the pixel including: a transistor, a storage capacitor including: a first electrode, and a second electrode, and a semiconductor layer, a first plate partially overlapping the semiconductor layer in the pixel, the first plate including: a gate portion of the transistor, and a capacitor-forming portion including the first electrode of the storage capacitor, and a second plate on the first plate in the pixel, the second plate including the second electrode of the storage capacitor, the second plate not overlapping the semiconductor layer.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: August 23, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-June Jung, Donghyun Yeo
  • Structure of a liquid crystal display unit having exposed channel region
    Patent number: 5751020
    Abstract: A liquid crystal display unit includes a substrate; a gate electrode formed on the substrate; a gate insulating layer formed on the exposed surface of the substrate including the gate electrode; an intrinsic semiconductor layer and an impurity layer formed on the gate insulating layer; source and drain electrodes separately formed on the impurity semiconductor layer; an insulating layer formed on the source and drain electrodes, the insulating layer having a contact hole for exposing a channel region; and a pixel electrode formed on the insulating layer and connected to the drain electrode.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: May 12, 1998
    Assignee: LG Electronics Inc.
    Inventor: Ki Hyun Lyu
  • Display device
    Patent number: 11385515
    Abstract: Embodiments of the disclosure are related to display devices, a planarization layer disposed on a thin film transistor in a display panel is removed to form an opening in the planarization layer, and a top gate electrode is disposed in the opening of the planarization layer, thus a driving performance of the thin film transistor is enhanced while reducing a size of the thin film transistor disposed in the display panel. Furthermore, the top gate electrode is implemented using an electrode layer located on an upper layer of the planarization layer, the thin film transistor including double gate electrodes is implemented easily without an additional process.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 12, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hoon Jeong, Chulsang Shin, Jin Her
  • Thin film transistor array panel and method for fabricating the same
    Patent number: 6670708
    Abstract: A TFT array panel and a method for fabricating the same is disclosed, wherein an adhesion force between an elongated wire and a TFT array panel pad is improved by increasing the contact area of a bonding pad. The TFT array panel pad includes a first conductive layer formed in a pad region on an insulating substrate. The first conductive layer includes a plurality of conductive islands and holes. A second conductive layer is formed over and covers the first conductive layer.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: December 30, 2003
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Kyo Seop Choo, June Ho Park
  • Method of fabricating liquid crystal display device
    Patent number: 7179673
    Abstract: A method of fabricating a liquid crystal display device is disclosed in the present invention. The method includes forming a thin film transistor in a pixel region and a pad on an edge region of a first substrate, depositing an organic passivation layer over the first substrate, and removing the organic passivation layer in the edge region using a diffraction mask to expose a portion of the pad, wherein the diffraction mask has a slit portion including a plurality of slits having different widths.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: February 20, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: In-Duk Song, Ho-Jin Ryu
  • Thin film transistor with electrodes having compressive and tensile stress
    Patent number: 6323521
    Abstract: A thin film transistor includes a substrate, a gate electrode on the substrate, a gate insulating layer on the substrate and covering the gate electrode, an active layer on the gate insulating layer, an ohmic contact layer on the active layer and not overlapping the gate electrode, and a source electrode and a drain electrode connected to the ohmic contact layer. Each of the source electrode and the drain electrode has a double-layered structure of a first metal layer having tensile stress and a second metal layer having compressive stress.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: November 27, 2001
    Assignee: LG LCD, Inc.
    Inventor: Hyun-Sik Seo
  • Organic light emitting display device having banks and method of manufacturing the same
    Patent number: 10230066
    Abstract: An organic light emitting display device and a method of manufacturing the same are provided in which a separate photomask process is not added, a pile-up phenomenon of an organic layer is prevented, and a device characteristic is improved. The organic light emitting display device includes a plurality of banks in a boundary portion of a pixel area on a base substrate, an anode electrode in a pixel area on the base substrate, an organic layer on the anode electrode, and a cathode electrode on the organic layer and the plurality of banks.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SeungHan Paek, YoungMu Oh, Jeongwon Lee, Heonll Song, Jonghoon Yeo, Jihoon Lee
  • Liquid crystal display and fabricating method thereof
    Patent number: 7915063
    Abstract: A liquid crystal display device includes a plurality of liquid crystal cells on a substrate, a plurality of drive lines extending along first and second directions and connected to the plurality of liquid crystal cells, a plurality of pad lines extending from each of the plurality of drive lines at a first angle from one of the first and second directions, and a plurality of pads extending at the first angle and connected to each of the plurality of pad lines for supplying external drive signals.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: March 29, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Ho Oh, Su Woong Lee
  • Display device having multiple buffer layers
    Patent number: 11158700
    Abstract: Disclosed is a display device with high resolution. The display device includes a substrate, a plurality of signal lines on the substrate, multiple buffer layers including at least one organic buffer layer and at least one inorganic buffer layer, and at least one transistor that overlaps one or more of the plurality of signal lines, with the multiple buffer layers interposed therebetween. Accordingly, it may be possible to ensure a sufficient process margin and consequently to realize a high resolution and improve production yield.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 26, 2021
    Assignee: LG Display Co., Ltd
    Inventors: Jung-Sun Beak, Jeong-Oh Kim, Jong-Won Lee, Dong-Kyu Lee
  • Photo sensor and display device having the same
    Patent number: 10134800
    Abstract: Disclosed herein is a photo sensor comprising a first thin film transistor (TFT) configured to convert light energy to electric energy; a storage capacitor having a first electrode and a second electrode configured to face to each other, and storing the electric energy from the first TFT as charge; and a second TFT configured to output the charge stored in the storage capacitor according to a control signal, wherein a first gate electrode of the first TFT, a first electrode of the storage capacitor and a second gate electrode of the second TFT are integrally formed.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: November 20, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyoseop Choo, Guensik Lee, Manhyeop Han
  • Flexible display apparatus having a well and a discontinuous region in an encapsulation layer
    Patent number: 11456430
    Abstract: A flexible display device including a well structure. An organic light-emitting element including a pixel electrode, an organic light-emitting layer, and a common electrode is disposed on a substrate. A bank layer is disposed on the pixel electrode, and is disposed to open at least a part of the pixel electrode. Further, at least one well structure is disposed on the bank layer. The well structure disposed on the bank layer can reduce or minimize a delamination phenomenon of an encapsulation layer which can occur due to compressive and tensile stress caused by bending of the flexible display device.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: September 27, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Miseong Kim
  • Electrode structure, electronic device comprising same and method for manufacturing same
    Patent number: 10749135
    Abstract: Provided is an electrode structure having a transparent electrode, a light blocking pattern provided on the transparent electrode, an auxiliary electrode pattern provided on the light blocking pattern, and an organic insulating pattern covering the light blocking pattern and the auxiliary electrode pattern, wherein a line width of the light blocking pattern is larger than a line width of the auxiliary electrode pattern. Also provided are an electronic device including the electrode structure, and a method of manufacturing the electrode structure.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 18, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yong Goo Son, Song Ho Jang, Jiehyun Seong, Kiseok Lee, Seung Heon Lee
  • Organic light emitting diode display and fabricating method thereof
    Patent number: RE45235
    Abstract: An organic light emitting diode display device includes a switch TFT and a drive TFT formed on a substrate; an overcoat layer formed on the TFTs; a drain contact hole exposing portions of a drain electrode of the drive TFT by removing portions of the overcoat layer; a first electrode contacting to the drain electrode of the drive TFT; a bank pattern exposing an aperture area of a pixel; an organic layer formed on the first electrode; and a second electrode formed on the organic layer, wherein the bank pattern blocks regions where the drain contact hole is formed.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: November 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Heedong Choi