Patents by Inventor Kwan-Soo Kim

Kwan-Soo Kim 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: 20250255099
    Abstract: A display device can include a substrate having a first region and a second region, an TFT disposed on the substrate, a plurality of insulation layers disposed on the TFT, an anode disposed on the plurality of insulation layers at the first region, an organic layer at the first region and at the second region, a cathode on the organic layer of the first region, a bank disposed on the anode and between the first region and the second region, an optical compensation layer on the cathode of the first region and the organic layer of the second region, and an encapsulation layer on the optical compensation layer at the first region and the second region. The cathode is interposed between the optical compensation layer and the organic layer over the first region.
    Type: Application
    Filed: April 28, 2025
    Publication date: August 7, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Hyeon KIM, Kwan Soo KIM, Young Nam LIM, Min Jee KIM, Seok Hyun KIM, Min Geun SONG
  • Publication number: 20250221175
    Abstract: Disclosed is a light emitting display device and manufacturing method thereof. The light emitting display device includes a light emitting device including a first electrode, an intermediate layer, and a second electrode at each of a plurality of emission areas on a substrate, a first capping layer and a second capping layer sequentially provided on the light emitting device and configured to have different refractive indexes, a first pattern defining layer adjacent to a side surface of the second electrode and provided at each of a plurality of transmission areas on the substrate, and a second pattern defining layer adjacent to a side surface of the second capping layer and configured to overlap the first pattern defining layer.
    Type: Application
    Filed: December 26, 2024
    Publication date: July 3, 2025
    Inventors: Seok Hyun KIM, Kwan Soo KIM, Jong Woo PARK, Min Jee KIM
  • Publication number: 20250185481
    Abstract: A light emitting display device includes a plurality of sub-pixels that each have a light emitting area. The light emitting display device includes a substrate; a first electrode at each light emitting area on the substrate; an intermediate layer and a second electrode on the first electrode; an auxiliary electrode at a non-light emitting area and spaced apart from the first electrode on the substrate; a bank exposing the light emitting area and the auxiliary electrode; a first partition on the auxiliary electrode and configured to expose a portion of the auxiliary electrode; a first pattern-defining layer on the first partition; and a connection electrode on the auxiliary electrode and electrically connected to the second electrode.
    Type: Application
    Filed: November 27, 2024
    Publication date: June 5, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: Jong Woo PARK, Kwan Soo KIM, Min Jee KIM, Seok Hyun KIM
  • Patent number: 12041816
    Abstract: Discussed is a light-emitting display device, which emits light unchanged by maintaining a cavity of internal light using reverse cavity characteristics through an optical compensation structure, and achieves high luminance characteristics despite a change in a viewing angle, prevents external light from being reflected, and is excellent in terms of efficiency and lifespan by combining the optical compensation structure with a color filter structure. The optical compensation structure includes at least one first layer having a first refractive index and at least one second layer having a second refractive index greater than the first refractive index, the first layer being thicker than the second layer.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: July 16, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Hyeon Kim, Kwan Soo Kim, Min Jee Kim, Seok Hyun Kim, Young Nam Lim, Min Geun Song
  • Publication number: 20240188406
    Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
    Type: Application
    Filed: February 15, 2024
    Publication date: June 6, 2024
    Inventors: Young-Nam Lim, Hyun-Chul Choi, Kwan-Soo Kim, Seok-Hyun Kim, Jae-Hyeon Kim
  • Publication number: 20240172474
    Abstract: Discussed is a display device including a substrate having a first region and a second region, an anode at the first region, an organic layer at the second region and at the first region, a cathode on the organic layer of the first region, a bank between the first region and the second region, an optical compensation layer on the cathode of the first region and the organic layer of the second region, and an encapsulation layer on the optical compensation layer at the first region and the second region. The cathode is interposed between the optical compensation layer and the organic layer over the first region.
    Type: Application
    Filed: January 30, 2024
    Publication date: May 23, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Hyeon KIM, Kwan Soo KIM, Young Nam LIM, Min Jee KIM, Seok Hyun KIM, Min Geun SONG
  • Patent number: 11937491
    Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Nam Lim, Hyun-Chul Choi, Kwan-Soo Kim, Seok-Hyun Kim, Jae-Hyeon Kim
  • Patent number: 11925057
    Abstract: Discussed is a display device for improving both transmittance and efficiency of light that is transmitted through a light-emitting unit and a transmissive unit due to a phase difference of ? at an interface between an organic layer and an optical compensation layer of the display device.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: March 5, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Hyeon Kim, Kwan Soo Kim, Young Nam Lim, Min Jee Kim, Seok Hyun Kim, Min Geun Song
  • Patent number: 11882746
    Abstract: Disclosed are a panel capable of performing transparent display, a display device and a vehicle-mounted display device. A transmission part includes an organic light-emitting diode so as to perform light emission as well as display, thereby increasing an emission area, reducing the driving voltage required for emission driving, and consequently increasing the lifespan of the display device.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 23, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Jung Park, Kwan-Soo Kim, Ki-Min Lim
  • Patent number: 11882715
    Abstract: Disclosed is a display device which may display images in a transmission portion, and may improve uniformity of a display in both the emission portion and the transmission portion, thus may improve efficiency of a device and improve a lifespan.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: January 23, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Hyeon Kim, Seok-Hyun Kim, Kwan-Soo Kim, Young-Nam Lim
  • Patent number: 11737302
    Abstract: The present disclosure relates to a display device, and more particularly, to a high-performance display device by which high transmittance is secured and efficiency is enhanced in a manner of using a mixture of an organic matter and an alkaline earth metal as a cathode and facilitating patterning.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: August 22, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Hyeon Kim, Seok-Hyun Kim, Kwan-Soo Kim, Young-Nam Lim
  • Publication number: 20230263041
    Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Inventors: Young-Nam LIM, Hyun-Chul CHOI, Kwan-Soo KIM, Seok-Hyun KIM, Jae-Hyeon KIM
  • Patent number: 11678560
    Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: June 13, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Nam Lim, Hyun-Chul Choi, Kwan-Soo Kim, Seok-Hyun Kim, Jae-Hyeon Kim
  • Patent number: 11545644
    Abstract: Disclosed is a display device configured such that a mixture of a transition metal and an organic material is used as a cathode, whereby the cathode exhibits low resistance, high transmittance, high reliability, and high performance in the state in which the cathode is thin.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: January 3, 2023
    Assignee: LG Display Co., Ltd
    Inventors: Jae-Hyeon Kim, Seok-Hyun Kim, Kwan-Soo Kim, Young-Nam Lim
  • Publication number: 20220209195
    Abstract: Discussed is a light-emitting display device, which emits light unchanged by maintaining a cavity of internal light using reverse cavity characteristics through an optical compensation structure, and achieves high luminance characteristics despite a change in a viewing angle, prevents external light from being reflected, and is excellent in terms of efficiency and lifespan by combining the optical compensation structure with a color filter structure. The optical compensation structure includes at least one first layer having a first refractive index and at least one second layer having a second refractive index greater than the first refractive index, the first layer being thicker than the second layer.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 30, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Hyeon KIM, Kwan Soo KIM, Min Jee KIM, Seok Hyun KIM, Young Nam LIM, Min Geun SONG
  • Publication number: 20220209161
    Abstract: A display device includes: a substrate including: a first region, and a second region, an anode at the first region, an organic layer on the anode at the first region, and on the second region, an electron injection layer on the organic layer at the first region and the second region, the electron injection layer including a first metal, a cathode on the electron injection layer at the first region, the cathode including a second metal having a greater work function than a work function of the first metal, and a capping layer on the cathode at the first region, and on the electron injection layer at the second region.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 30, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Min Jee KIM, Seok Hyun KIM, Kwan Soo KIM, Young Nam LIM, Jae Hyeon KIM, Min Geun SONG
  • Publication number: 20220209192
    Abstract: Discussed is a display device for improving both transmittance and efficiency of light that is transmitted through a light-emitting unit and a transmissive unit due to a phase difference of ? at an interface between an organic layer and an optical compensation layer of the display device.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 30, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Hyeon KIM, Kwan Soo KIM, Young Nam LIM, Min Jee KIM, Seok Hyun KIM, Min Geun SONG
  • Patent number: 11335876
    Abstract: Disclosed are an organic light emitting diode, an organic light emitting diode display device and a display device for vehicles using the same. The organic light emitting diode may achieve process simplification and reduction in material costs while maintaining high luminance, through structure change.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 17, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Han-Byeol Seok, Kwan-Soo Kim, Eun-Jung Park, Ki-Min Lim, Seung-Kwang Roh, Byung-Soo Kim, Sang-Kyoung Moon, Dong-Il Choi
  • Patent number: RE49260
    Abstract: Disclosed is an organic light-emitting display device, which prevents lateral current leakage by providing a structure on a bank so as to cut off an organic material, which is formed in a subsequent process, around the structure.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: October 25, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Jung Park, Kwan-Soo Kim, Byung-Soo Kim, Han-Byeol Seok, Su-Hyeon Kim, Seok-Hyun Kim
  • Patent number: RE50316
    Abstract: Disclosed is an organic light-emitting display device, which prevents lateral current leakage by providing a structure on a bank so as to cut off an organic material, which is formed in a subsequent process, around the structure.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: February 25, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Jung Park, Kwan-Soo Kim, Byung-Soo Kim, Han-Byeol Seok, Su-Hyeon Kim, Seok-Hyun Kim