Patents by Inventor Kook-Hyun Choi

Kook-Hyun Choi 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).

  • Patent number: 11948493
    Abstract: A display device of the present disclosure comprises pixels arranged in a display, a data accumulator for accumulating first image data for an N-th frame output through the display, a data receiver for receiving second image data for an (N+1)th frame to be output through the display, and an afterimage controller for correcting a current value corresponding to a grayscale value of the second image data through a convolution operation between a filter, which is set based on the first image data, and the second image data.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hwan Park, Dae Cheol Kim, Kook Hyun Choi
  • Publication number: 20240040848
    Abstract: A display device comprises pixel electrodes disposed on a substrate and spaced apart from one another, a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes, organic light-emitting layers disposed in the openings of the pixel-defining film, a common electrode disposed between the pixel-defining film and the organic light-emitting layers, an encapsulation layer disposed on the common electrode, a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another, and color filters disposed in the holes of the light-blocking layer and overlapping the openings. Sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed. The color filters are disposed to partially overlap one another on the light-blocking layer.
    Type: Application
    Filed: April 12, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong Yong HWANG, Ji Hyun KIM, Chan Young KIM, Yeong Ho LEE, Jun Hee LEE, Choong Youl IM, Ha Seok JEON, Hyun Duck CHO, Kook Hyun CHOI, Beohm Rock CHOI
  • Publication number: 20240038952
    Abstract: A display device comprises a thin film transistor layer comprising a first metal layer disposed on a substrate and a thin film transistor disposed on the first metal layer, first and second electrodes disposed in a display area on the thin film transistor layer and extending in parallel in a direction, a plurality of light emitting elements disposed between the first and second electrodes, and an alignment line disposed in a non-display area disposed adjacent to the display area and electrically connected to the first and second electrodes. The alignment line comprises metal patterns disposed in the first metal layer and spaced apart from each other, and a bridge portion disposed on the first metal layer and electrically connected to the metal patterns.
    Type: Application
    Filed: March 2, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: In Woo KIM, Yong Tae CHO, Kook Hyun CHOI, Chang Woo KWON, Dae Cheol KIM, Jong Hwan PARK, Ji Hyeon SON
  • Publication number: 20240040847
    Abstract: A display device includes pixels and emission areas, a light blocking layer including holes overlapping the emission areas, and color filters in the holes of the light blocking layer and overlapping the emission areas, the color filters include a first color filter overlapping a first emission area, a second color filter overlapping a second emission area, and a third color filter overlapping a third emission area, an area of the first emission area is greater than an area of the second emission area and an area of the third emission area and the area of the second emission area is greater than the area of the third emission area, and a ratio between opening widths of the first emission area, the second emission area, and the third emission area is about 1.33:1.15:1 to about 1.43:1.25:1.
    Type: Application
    Filed: April 12, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Choong Youl IM, Hyun Duck CHO, Kook Hyun CHOI, Ji Hyun KIM, Jun Hee LEE, Ha Seok JEON, Beohm Rock CHOI
  • Publication number: 20240014351
    Abstract: A display device may include: a substrate; and a pixel on the substrate, and including an emission area and a non-emission area. The pixel may include: a light emitting element in the emission area, the light emitting element including a first end and a second end; a first pixel electrode electrically connected to the first end of the light emitting element; a second pixel electrode electrically connected to the second end of the light emitting element; an organic transmission layer covering the first end and the second end of the light emitting element, organic transmission layer including a light diffusion particle; and a color conversion layer on the organic transmission layer, the color conversion layer including a color conversion particle to convert a first color of light emitted from the light emitting element to a second color of light.
    Type: Application
    Filed: June 13, 2023
    Publication date: January 11, 2024
    Inventors: Jin Woo LEE, Zu Seok OH, Jeong Hyun LEE, Kyung Ah CHOI, Kook Hyun CHOI
  • Publication number: 20240005832
    Abstract: A display device of the present disclosure comprises pixels arranged in a display, a data accumulator for accumulating first image data for an N-th frame output through the display, a data receiver for receiving second image data for an (N+1)th frame to be output through the display, and an afterimage controller for correcting a current value corresponding to a grayscale value of the second image data through a convolution operation between a filter, which is set based on the first image data, and the second image data.
    Type: Application
    Filed: March 15, 2023
    Publication date: January 4, 2024
    Inventors: Jong Hwan PARK, Dae Cheol KIM, Kook Hyun CHOI
  • Patent number: 11803073
    Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: October 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
  • Publication number: 20230317762
    Abstract: A display device includes a display area and a pad area. The display device may include a pixel on a base layer in the display area, the pixel including a light emitting element, and pads on the base layer in the pad area. The pads may include pad lines including first and second pad lines and first and second electrode parts. The pads may include a first contact area and a second contact area. The first pad line and the second pad line may be electrically connected to each other in the first contact area. The second pad line and the second electrode part may be electrically connected in the second contact area. The first electrode part may overlap the second pad line in a plan view. The first and second electrode parts may be electrically separated from each other by a pad insulating pattern.
    Type: Application
    Filed: October 19, 2022
    Publication date: October 5, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: In Woo KIM, Yong Tae CHO, Kook Hyun CHOI
  • Patent number: 11773253
    Abstract: Provided is an encapsulating composition and an organic electronic device comprising the same. The encapsulating composition can effectively block moisture or oxygen from being introduced into an organic electronic device from the outside. The encapsulating composition can secure the lifetime of the organic electronic device, make it possible to realize a top emission type organic electronic device, is applicable to an inkjet method and can provide a thin display.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 3, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Yu Jin Woo, Joon Hyung Kim, Kook Hyun Choi, Mi Lim Yu
  • Patent number: 11762251
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: September 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gwon-Heon Ryu, Kwi Hyun Kim, Kook Hyun Choi, Woo Gun Kang, Kyung Won Park, Jin Su Lee
  • Publication number: 20230230967
    Abstract: A display device includes a conductive pattern on a substrate, a via layer on the conductive pattern with a via hole exposing the conductive pattern, a first electrode and a second electrode on the via layer and spaced apart from each other, a first insulating layer on the first electrode and the second electrode, a bank layer on the first insulating layer defining an emission area and a subarea, a light-emitting element on the first insulating layer, and a first connection electrode and a second connection electrode on the first insulating layer and the light-emitting element. The first connection electrode electrically contacts an end of the light-emitting element, and the second connection electrode electrically contacts another end of the light-emitting element. The bank layer includes a bank extension portion extended to the subarea and the bank extension portion overlaps at least a portion of the via hole.
    Type: Application
    Filed: August 17, 2022
    Publication date: July 20, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: In Woo KIM, Chang Woo KWON, Dae Cheol KIM, Jong Hwan PARK, Yong Tae CHO, Kook Hyun CHOI
  • Patent number: 11638382
    Abstract: The present application relates to a method for preparing an organic electronic device, and the organic electronic device prepared by the same, the method for preparing an organic electronic device can improve flatness and adhesion of an organic layer in a process of sealing an organic electronic element to effectively block moisture or oxygen from the outside, thereby securing the lifetime of the organic electronic device.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 25, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Kook Hyun Choi, Joon Hyung Kim, Yu Jin Woo, Mi Lim Yu
  • Publication number: 20230091726
    Abstract: A display device includes a substrate including a display area and a non-display area; pixels disposed in the display area and including respective light emitting units; a first conductive pattern disposed between the pixels; and a power source line disposed in the non-display area and electrically connected to the first conductive pattern. Each of the light emitting units includes a light emitting element, a first pixel electrode disposed on a first end of the light emitting element, and a second pixel electrode disposed on a second end of the light emitting element. The first conductive pattern and the second pixel electrode are disposed on a same layer.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 23, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, In Woo KIM, Chong Chul CHAI, Chang Woo KWON, Kyung Bae KIM, Dae Cheol KIM, Jong Hwan PARK, Yong Tae CHO, Kook Hyun CHOI
  • Patent number: 11545645
    Abstract: Provided is a method for preparing an organic electronic device, comprising steps of: applying an ink composition on a substrate, on which an organic electronic element is formed; applying heat thereto before curing the applied ink composition; and curing the applied ink composition by irradiating with light having a wavelength in a range of 300 nm to 450 nm. Also provided is an organic electronic device, comprising a substrate, an organic electronic element formed on the substrate, and an organic layer sealing the entire surface of the organic electronic element, wherein after the organic layer is maintained at 110° C. for 30 minutes, the out-gas amount measured using Purge & Trap-gas chromatography/mass spectrometry is less than 150 ppm.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 3, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Yu Jin Woo, Joon Hyung Kim, Kook Hyun Choi, Mi Lim Yu
  • Patent number: 11526060
    Abstract: The present disclosure relates to a display device including a substrate, a gate line on the substrate, a data line crossing the gate line, a pixel connected to the gate line and the data line, and a dummy data line disposed at an edge on the substrate and crossing the gate line, wherein the dummy data line includes openings that is disposed on a portion that is near an overlapping portion with the gate line, and portions of the dummy data line separated by the openings are electrically insulated from each other.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: December 13, 2022
    Inventors: Gwon-Heon Ryu, Yang Gyu Jang, Kook Hyun Choi, Beom Jun Kim, Hyung Gi Jung
  • Publication number: 20220308380
    Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 29, 2022
    Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
  • Patent number: 11353730
    Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: June 7, 2022
    Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
  • Publication number: 20220107537
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Application
    Filed: December 6, 2021
    Publication date: April 7, 2022
    Inventors: Gwon-Heon RYU, Kwi Hyun KIM, Kook Hyun CHOI, Woo Gun KANG, Kyung Won PARK, Jin Su LEE
  • Patent number: 11248142
    Abstract: The present application relates to an encapsulating composition and an organic electronic device comprising the same, and provides an encapsulating composition which can effectively block moisture or oxygen introduced into an organic electronic device from the outside to secure the lifetime of the organic electronic device, is possible to realize a top emission type organic electronic device, is applicable to an inkjet method and can provide a thin display.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: February 15, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Mi Lim Yu, Joon Hyung Kim, Yu Jin Woo, Kook Hyun Choi
  • Publication number: 20220017693
    Abstract: The present application relates to an encapsulating composition and an organic electronic device comprising the same, and provides an encapsulating composition which can effectively block moisture or oxygen introduced into an organic electronic device from the outside to secure the lifetime of the organic electronic device, can implement a top-emitting organic electronic device, can be applied in an inkjet method, can provide a thin display and can effectively prevent interference of an electromagnetic field due to a low dielectric constant.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 20, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Mi Lim Yu, Joon Hyung Kim, Ji Won Kwak, Kook Hyun Choi, Yung Jong Lee