Patents by Inventor Kyoung-Mook Lee

Kyoung-Mook Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240099132
    Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host comprises plural host compounds; at least a first host compound of the plural host compounds has a structure of a nitrogen-containing heterocyclic linker bonded to a nitrogen atom of a carbazole of an indole-carbazole, indene-carbazole, benzofuran-carbazole, or benzothiophene-carbazole residue; and a second host compound has a carbazole-aryl-carbazole or carbazole-carbazole structure. According to the present invention, by using a specific multi-component host different from the conventional organic electroluminescent device, an organic electroluminescent device of significantly improved lifespan is provided.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Inventors: Kyoung-Jin PARK, Bitnari KIM, Yoo-Jin DOH, Hyun-Ju KANG, Young-Mook LIM, Su-Hyun LEE, Chi-Sik KIM
  • Publication number: 20230047791
    Abstract: The present disclosure provides a touch display device including: a plurality of emitting elements; an adhesive layer over the emitting elements; a first touch electrode and a second touch electrode over the adhesive layer and in an active area; a pad electrode over the adhesive layer and in a touch pad region; and a protection layer over the first touch electrode, the second touch electrode and the pad electrode, wherein the first and second touch electrode are insulated by an insulating layer, and the protection layer includes at least one contact hole corresponding to the pad electrode, and wherein the pad electrode includes a plurality of electrode layers, and one of the plurality of electrode layers extends from the first touch electrode or the second touch electrode.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 16, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Rae LEE, Kyoung-Mook LEE, Nack-Bong CHOI, Young-Jun JEON
  • Patent number: 11513624
    Abstract: The present disclosure provides a touch display device including: a plurality of emitting elements; an adhesive layer over the emitting elements; a first touch electrode and a second touch electrode over the adhesive layer and in an active area; a pad electrode over the adhesive layer and in a touch pad region; and a protection layer over the first touch electrode, the second touch electrode and the pad electrode, wherein the first and second touch electrode are insulated by an insulating layer, and the protection layer includes at least one contact hole corresponding to the pad electrode, and wherein the pad electrode includes a plurality of electrode layers, and one of the plurality of electrode layers extends from the first touch electrode or the second touch electrode.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: November 29, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Rae Lee, Kyoung-Mook Lee, Nack-Bong Choi, Young-Jun Jeon
  • Publication number: 20220190046
    Abstract: An inorganic light emitting diode device includes: a substrate including a plurality of sub-pixels; a thin film transistor (TFT) in each of the plurality of sub-pixels, wherein the TFT has at least one inorganic layer; an encapsulation layer on an organic light emitting layer, wherein the encapsulation layer includes at least one organic encapsulation layer and at least one inorganic encapsulation layer; and an opening exposing the inorganic layer of the TFT, wherein the opening connects the at least one inorganic encapsulation layer with the inorganic layer of the TFT.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 16, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Seong KIM, Se-Jong YOO, Kyoung-Mook LEE
  • Patent number: 11296156
    Abstract: An inorganic light emitting diode device includes: a substrate including a plurality of sub-pixels; a thin film transistor (TFT) in each of the plurality of sub-pixels, wherein the TFT has at least one inorganic layer; an encapsulation layer on an organic light emitting layer, wherein the encapsulation layer includes at least one organic encapsulation layer and at least one inorganic encapsulation layer; and an opening exposing the inorganic layer of the TFT, wherein the opening connects the at least one inorganic encapsulation layer with the inorganic layer of the TFT.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 5, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Seong Kim, Se-Jong Yoo, Kyoung-Mook Lee
  • Publication number: 20210149513
    Abstract: The present disclosure provides a touch display device including: a plurality of emitting elements; an adhesive layer over the emitting elements; a first touch electrode and a second touch electrode over the adhesive layer and in an active area; a pad electrode over the adhesive layer and in a touch pad region; and a protection layer over the first touch electrode, the second touch electrode and the pad electrode, wherein the first and second touch electrode are insulated by an insulating layer, and the protection layer includes at least one contact hole corresponding to the pad electrode, and wherein the pad electrode includes a plurality of electrode layers, and one of the plurality of electrode layers extends from the first touch electrode or the second touch electrode.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 20, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Mi-Rae Lee, Kyoung-Mook Lee, Nack-Bong Choi, Young-Jun Jeon
  • Publication number: 20200168670
    Abstract: An inorganic light emitting diode device includes: a substrate including a plurality of sub-pixels; a thin film transistor (TFT) in each of the plurality of sub-pixels, wherein the TFT has at least one inorganic layer; an encapsulation layer on an organic light emitting layer, wherein the encapsulation layer includes at least one organic encapsulation layer and at least one inorganic encapsulation layer; and an opening exposing the inorganic layer of the TFT, wherein the opening connects the at least one inorganic encapsulation layer with the inorganic layer of the TFT.
    Type: Application
    Filed: September 23, 2019
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Seong KIM, Se-Jong YOO, Kyoung-Mook LEE
  • Patent number: 8743337
    Abstract: A flexible display substrate module includes a base substrate, an adhesive part on the base substrate, a flexible substrate adhering to the adhesive part, and a protective layer covering side surfaces of the flexible substrate and of the adhesive part.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: June 3, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Han Paek, Kyoung Mook Lee, Kyung Lock Kim
  • Patent number: 8514340
    Abstract: An array substrate having double-layered metal patterns for use in a liquid crystal display device and a manufacturing method thereof are disclosed in the present invention.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: August 20, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Oh-Nam Kwon, Kyoung-Mook Lee, Nack-Bong Choi
  • Patent number: 8445300
    Abstract: Disclosed is a method of fabricating a display device that includes: forming an adhesive layer of an inorganic material on a carrier substrate having a display area and a non-display area surrounding the display area; forming a plurality of adhesive patterns of a metallic material on the adhesive layer, each of the plurality of adhesive patterns having a width and a height; forming a plastic substrate on the adhesive layer and the plurality of adhesive patterns; forming a plurality of elements for displaying images on the plastic substrate; cutting the carrier substrate and the plastic substrate to divide the display area and the non-display area; and detaching the carrier substrate from the plastic substrate.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: May 21, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Jin An, Kyoung-Mook Lee
  • 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: 8283670
    Abstract: A liquid crystal display panel includes: a thin film transistor array substrate having a gate line and a data line provided on the substrate; a gate insulating film between the gate line and the data line; a thin film transistor having a source electrode, a drain electrode and a gate electrode; a pixel electrode; a protective film for protecting the thin film transistor; a plurality of pads; a transparent electrode pattern formed on the data line, source electrode and drain electrode; and a color filter array substrate joined to the thin film transistor array substrate so that the color filter substrate does not overlap the pad area of the thin film transistor array substrate, wherein at least one of the gate insulating film and protective film in the pad area is etched using the color filter array substrate as a mask to expose at least one of the plurality of pads.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 9, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Mook Lee, Jae Young Oh
  • Patent number: 8148182
    Abstract: A manufacturing method of an electro line for a liquid crystal display device includes depositing a barrier layer made of a conducting material on a substrate, depositing a copper layer (Cu) on the barrier layer, wet-etching the Cu layer using a first etchant, and dry-etching the barrier layer using a second etchant using the wet-etched Cu layer as an etch mask.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: April 3, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Oh-Nam Kwon, Kyoung-Mook Lee, Heung-Lyul Cho, Seung-Hee Nam, Cyoo-Chul Jo
  • Patent number: 8071422
    Abstract: Disclosed is a display device including a thin film transistor. A method for forming the display device includes forming an organic semiconductor pattern in the presence of a magnetic field or an electric field. Due to the presence of a magnetic field or an electric field, the molecules of the organic semiconductor layer of the thin film transistor are substantially aligned in a predetermined direction.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 6, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Sik Seo, Seung-Han Paek, Kyoung-Mook Lee, Dae-Hyun Nam, Nack-Bong Choi, Sung-Hwan Kim
  • Patent number: 8052889
    Abstract: An etchant composition, and methods of patterning a conductive layer and manufacturing a flat panel display device using the same are provided. The etchant composition may include phosphoric acid, nitric acid, acetic acid, water and an additive, wherein the additive includes a chlorine-based compound, a nitrate-based compound, and an oxidation regulator. In addition, the flat panel display device may be manufactured by patterning a gate electrode, source/drain electrodes and a pixel electrode using the same etchant composition. The gate electrode, source/drain electrodes and the pixel electrode may be formed of different conductive materials. Accordingly, processes are simplified so that manufacturing costs may be reduced and productivity may be improved.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: November 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Mook Lee, Kye Chan Song
  • Publication number: 20110180800
    Abstract: A liquid crystal display panel includes: a thin film transistor array substrate having a gate line and a data line provided on the substrate; a gate insulating film between the gate line and the data line; a thin film transistor having a source electrode, a drain electrode and a gate electrode; a pixel electrode; a protective film for protecting the thin film transistor; a plurality of pads; a transparent electrode pattern formed on the data line, source electrode and drain electrode; and a color filter array substrate joined to the thin film transistor array substrate so that the color filter substrate does not overlap the pad area of the thin film transistor array substrate, wherein at least one of the gate insulating film and protective film in the pad area is etched using the color filter array substrate as a mask to expose at least one of the plurality of pads.
    Type: Application
    Filed: March 11, 2011
    Publication date: July 28, 2011
    Inventors: Kyoung Mook LEE, Jae Young Oh
  • Patent number: 7944516
    Abstract: A liquid crystal display device and its fabrication method may prevent occurrence of light leakage generated from the sides of a data line. A dummy pattern at sides of the data line with glass powder as an insulation film may simplify the repairing process. A method for fabricating a liquid crystal display device includes a gate electrode, a gate line, a dummy pattern and a first insulation film that are formed on a substrate. A switching element is formed on a portion of the gate electrode and includes a source electrode, a drain electrode and an active layer. A data line formed at a portion of the dummy pattern. A second insulation film is formed on the substrate and has a first contact hole that exposes a portion of the drain electrode. A pixel electrode is formed on the substrate and is electrically connected with the drain electrode through the first contact hole.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 17, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Mook Lee, Jae Young Oh, Kye Chan Song
  • Publication number: 20110092006
    Abstract: Disclosed is a method of fabricating a display device that includes: forming an adhesive layer of an inorganic material on a carrier substrate having a display area and a non-display area surrounding the display area; forming a plurality of adhesive patterns of a metallic material on the adhesive layer, each of the plurality of adhesive patterns having a width and a height; forming a plastic substrate on the adhesive layer and the plurality of adhesive patterns; forming a plurality of elements for displaying images on the plastic substrate; cutting the carrier substrate and the plastic substrate to divide the display area and the non-display area; and detaching the carrier substrate from the plastic substrate.
    Type: Application
    Filed: July 14, 2010
    Publication date: April 21, 2011
    Inventors: Hyun-Jin An, Kyoung-Mook Lee
  • Patent number: 7927899
    Abstract: A liquid crystal display panel includes: a thin film transistor array substrate having a gate line and a data line provided on the substrate; a gate insulating film between the gate line and the data line; a thin film transistor having a source electrode, a drain electrode and a gate electrode; a pixel electrode; a protective film for protecting the thin film transistor; a plurality of pads; a transparent electrode pattern formed on the data line, source electrode and drain electrode; and a color filter array substrate joined to the thin film transistor array substrate so that the color filter substrate does not overlap the pad area of the thin film transistor array substrate, wherein at least one of the gate insulating film and protective film in the pad area is etched using the color filter array substrate as a mask to expose at least one of the plurality of pads.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: April 19, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Mook Lee, Jae Young Oh
  • Patent number: 7898637
    Abstract: A method of manufacturing a liquid crystal display device includes attaching a flexible substrate and a base substrate using an adhesive therebetween, the base substrate including substantially pure iron; forming a plurality of thin films on a surface of the flexible substrate attached to the base substrate, the surface of the flexible substrate opposite to the attached surface of the flexible substrate; and etching the base substrate after forming the plurality of thin films.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: March 1, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Han Paek, Kyoung-Mook Lee, Yong In Park, Choon Ho Park