Patents by Inventor Hee-Keun Lee

Hee-Keun 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: 20220209070
    Abstract: A display device comprises a first electrode, a first insulating layer disposed on the first electrode, a second electrode disposed on the first insulating layer, at least a part of the second electrode facing the first electrode in a first direction, one or more first light-emitting elements disposed between the first electrode and the second electrode, the one or more first light-emitting elements extending in a direction, wherein the first insulating layer partially encompasses the outer surface of the one or more first light-emitting element, and the extending direction of at least one of the one or more first light-emitting element is parallel to the first direction.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 30, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Bek Hyun LIM, Tae Jin KONG, Myeong Hee KIM, Won Kyu KIM, Je Won YOO, Hee Keun LEE, Chang Il TAE
  • Patent number: 11362250
    Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: June 14, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Bek Hyun Lim, Kyung Tae Chae
  • Publication number: 20220115470
    Abstract: A display device may include: a base layer including a display area and a non-display area; and a plurality of pixels provided on the display area, and each including a plurality of sub-pixels. Each of the sub-pixels may include a pixel circuit layer, and a display element layer including an emission area formed to emit light, and a non-emission area provided around a perimeter of the emission area. The display element layer may include: a partition wall provided on the emission area of each of the sub-pixels; a bank provided on the non-emission area of each sub-pixel, and disposed on a surface equal to a surface on which the partition wall is disposed; a first electrode and a second electrode provided on the partition wall and spaced apart from each other; and at least one light emitting element provided between the first and second electrodes in the emission area of each sub-pixel, and configured to emit the light.
    Type: Application
    Filed: March 21, 2019
    Publication date: April 14, 2022
    Inventors: Dae Hyun KIM, Veidhes BASRUR, Xinxing LI, Tae Jin KONG, Hee Keun LEE, Hyun Min CHO, Keun Kyu SONG, Jin Oh KWAG
  • Patent number: 11275276
    Abstract: A display device includes a display panel and a light source configured to provide a first color light to the display panel. The display panel includes a first display substrate (DS), a second DS facing the first DS, a column spacer disposed between the first and second DSs, and a liquid crystal layer filled between the first and second DSs. The first DS includes: a first base substrate (FBS); a thin film transistor (TFT) disposed on the FBS, the TFT including a gate electrode, first and second electrodes, and an activation layer; a first insulation layer (IL) covering the TFT and disposed on the FBS; and a second IL disposed on the first IL and including an opening exposing a first portion of the first IL overlapping the activation layer. The column spacer is disposed on the first portion to cover the activation layer and shield the first color light.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: March 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keunwoo Park, Yeogeon Yoon, Hee-keun Lee, Taejin Kong, Wontae Kim, Seok-joon Hong
  • Publication number: 20220068901
    Abstract: A display device includes a base layer including a display area and a non-display area; and pixels disposed in the display area, each of the pixels including sub-pixels. Each of the sub-pixels includes a pixel circuit layer and a display element layer disposed on the pixel circuit layer. The display element layer includes a partition wall disposed in each of the sub-pixels; a bank disposed between adjacent ones of the sub-pixels; a first electrode and a second electrode disposed on the partition wall and spaced apart from each other; a reflective pattern disposed on the bank; and at least one light emitting element disposed between the first electrode and the second electrode.
    Type: Application
    Filed: June 13, 2019
    Publication date: March 3, 2022
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Jin KONG, Myeong Hee KIM, Hee Keun LEE
  • Publication number: 20220052032
    Abstract: A display device may include a pixel circuit layer. A first electrode and a second electrode may be on the pixel circuit layer and spaced from each other. A first insulating layer may be on the pixel circuit layer, the first electrode, and the second electrode. A conductive pattern may be on the first insulating layer and electrically insulated from the first electrode and the second electrode. The bank may be on the conductive pattern. Light emitting elements may be located on the first insulating layer between the first electrode and the second electrode, and electrically coupled to the first electrode and the second electrode.
    Type: Application
    Filed: June 5, 2019
    Publication date: February 17, 2022
    Inventors: Xinxing LI, Tae Jin KONG, Hee Keun LEE
  • Publication number: 20220037397
    Abstract: A display device includes at least one first and second electrodes extending in a first direction, at least one first and second light emitting elements disposed therebetween, a first contact electrode partially covering the first electrode and contacting a first end of the first light emitting element, a second contact electrode partially covering the second electrode and contacting a third end of the second light emitting element, and a third contact electrode disposed between the first and second contact electrodes and contacting a second end of the first light emitting element and a fourth end of the second light emitting element, in which a distance between the first and second electrodes is greater than a longitudinal length of at least one of the first and second light emitting elements, and the first and second light emitting elements are connected in series between the first and second electrodes.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Applicant: Samsung Display Co. Ltd.
    Inventors: Xin Xing LI, Tae Jin KONG, Hee Keun LEE, Hyun Min CHO, Chang Il TAE
  • Publication number: 20220026763
    Abstract: A display panel includes a first display substrate, a second display substrate. The second display substrate includes a substrate, a color conversion layer including a first conversion part configured to absorb light of a first color and to emit light of a second color, a second conversion part configured to absorb the light of the first color and to emit light of a third color, and a third conversion part configured to transmit the light of the first color, and a filter layer including a first filter overlapping with the first conversion part and having the second color, a second filter overlapping with the second conversion part and having the third color, a third filter overlapping with the third conversion part and having the first color, and an auxiliary filter overlapping with the second conversion part and configured to absorb the light of the first color.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Seung-jin CHU, Hoon KIM, Wontae KIM, Yeogeon YOON, Hee-keun LEE
  • Publication number: 20220020734
    Abstract: A display device includes a first substrate; a first conductive pattern, a first voltage line and a second voltage line on the first substrate; an insulating layer on the first conductive pattern and the second voltage line; a plurality of first light-emitting elements on the insulating layer; a first electrode on the insulating layer and connected to the first conductive pattern, the first electrode overlapping the first voltage line; and a second electrode on the insulating layer and connected to the second voltage line, wherein the plurality of first light-emitting elements are in contact with the first electrode and the second electrode, and wherein a part of an upper surface of the first electrode that overlaps the first conductive pattern and a part of the upper surface of the first electrode that overlaps the first voltage line are located on the same plane.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Inventors: Bek Hyun LIM, Jung-Hwan YI, Hee Keun LEE
  • Publication number: 20220005975
    Abstract: A display device includes a substrate and a pixel on the substrate. The pixel has an alignment area, and the alignment area has a first alignment area, a second alignment area spaced apart from the first alignment area in a first direction, and a non-alignment area extending around a periphery of the alignment area. The pixel includes: a first electrode and a second electrode extending in the first direction across the alignment area and being spaced apart from each other; a first bank in the non-alignment area and extending along a boundary of the pixel; an alignment control layer including a first alignment control pattern, the first alignment control pattern being spaced apart from the first bank in the non-alignment area between the first alignment area and the second alignment area; and a first light emitting element between the first electrode and the second electrode in the first alignment area.
    Type: Application
    Filed: June 14, 2021
    Publication date: January 6, 2022
    Inventors: Eun A YANG, Han Su KIM, Jong Hyuk KANG, Hee Keun LEE
  • Publication number: 20210407970
    Abstract: A pixel may include a pixel circuit layer including at least one transistor and a first electrode disposed on a substrate, and a first insulating layer disposed on the at least one transistor and the first electrode, and a display element layer disposed on the pixel circuit layer, the display element layer including a second electrode electrically connected to the at least one transistor, and a plurality of light emitting elements electrically connected to each of the first and second electrodes. The first electrode and the second electrode may be disposed on different layers and may be spaced apart from each other. The plurality of light emitting elements may overlap the first and second electrodes in a plan view and a cross-sectional view.
    Type: Application
    Filed: March 24, 2021
    Publication date: December 30, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Wook LEE, Ki Nyeng KANG, Jin Taek KIM, Tae Woo KIM, Hee Keun LEE, Kyung Tae CHAE
  • Publication number: 20210391380
    Abstract: A light emitting device may include a first electrode disposed on a substrate; a first insulating layer disposed on the substrate and overlapping at least a part of the first electrode; a second electrode disposed on the first insulating layer and spaced apart from the first electrode; and at least one light emitting diode electrically connected between the first electrode and the second electrode. The first electrode and the second electrode may be disposed on different layers on the substrate, the first insulating layer is disposed between the first electrode and the second electrode, and the first electrode and the second electrode are spaced apart from each other so as not to overlap each other in a plan view.
    Type: Application
    Filed: April 10, 2019
    Publication date: December 16, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Xinxing LI, Tae Jin KONG, Hee Keun LEE, Dae Hyun KIM, Hyun Min CHO, Chang Il TAE
  • Publication number: 20210384169
    Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.
    Type: Application
    Filed: March 23, 2021
    Publication date: December 9, 2021
    Inventors: Hee Keun LEE, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Baek Hyeon LIM, Kyung Tae CHAE
  • Publication number: 20210384252
    Abstract: A display device may include a substrate including a display area and a non-display area; and pixels provided on the display area, and each including sub-pixels each including an emission area and a non-emission area. Each of the sub-pixels may include a display element layer including at least one light emitting element that emits light. The display element layer may include: a first electrode and a second electrode spaced apart from each other, the light emitting element disposed therebetween; and connection lines including a first connection line extending in a row direction of the substrate and electrically connected to the first electrode, and a second connection line extending parallel to the first connection line and electrically connected to the second electrode. Two connection lines having a symmetric structure may be disposed in an area between two sub-pixels adjacent to each other in a column direction of the substrate.
    Type: Application
    Filed: April 1, 2019
    Publication date: December 9, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Keun LEE, Tae Jin KONG, Veidhes BASRUR, Xinxing LI, Chang Il TAE
  • Publication number: 20210367183
    Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 25, 2021
    Inventors: Baek Hyeon LIM, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Kyung Tae CHAE
  • Publication number: 20210358393
    Abstract: A method for manufacturing a display device including a substrate including a display area and a non-display area located outside the display area, the display area including pixel areas, is provided. First switching elements are formed in the pixel areas, respectively, and a circuit element layer that includes reference voltage wire in the non-display area and electrically connected to the first switching elements is formed. Pixel electrodes that include first pixel electrodes in the pixel areas on the circuit element layer, respectively, and electrically connected through the first switching elements to the reference voltage wire, and second pixel electrodes facing the first pixel electrodes, are formed. A plurality of light emitting elements are arranged between the first pixel electrodes and the second pixel electrodes.
    Type: Application
    Filed: July 8, 2019
    Publication date: November 18, 2021
    Inventors: Sin Chul KANG, Won Sik OH, Yo Han LEE, Hee Keun LEE, Hyun Min CHO
  • Patent number: 11169409
    Abstract: A display panel includes a first display substrate, a second display substrate. The second display substrate includes a substrate, a color conversion layer including a first conversion part configured to absorb light of a first color and to emit light of a second color, a second conversion part configured to absorb the light of the first color and to emit light of a third color, and a third conversion part configured to transmit the light of the first color, and a filter layer including a first filter overlapping with the first conversion part and having the second color, a second filter overlapping with the second conversion part and having the third color, a third filter overlapping with the third conversion part and having the first color, and an auxiliary filter overlapping with the second conversion part and configured to absorb the light of the first color.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: November 9, 2021
    Inventors: Seung-jin Chu, Hoon Kim, Wontae Kim, Yeogeon Yoon, Hee-keun Lee
  • Patent number: 11152424
    Abstract: A display device includes at least one first and second electrodes extending in a first direction, at least one first and second light emitting elements disposed therebetween, a first contact electrode partially covering the first electrode and contacting a first end of the first light emitting element, a second contact electrode partially covering the second electrode and contacting a third end of the second light emitting element, and a third contact electrode disposed between the first and second contact electrodes and contacting a second end of the first light emitting element and a fourth end of the second light emitting element, in which a distance between the first and second electrodes is greater than a longitudinal length of at least one of the first and second light emitting elements, and the first and second light emitting elements are connected in series between the first and second electrodes.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Xin Xing Li, Tae Jin Kong, Hee Keun Lee, Hyun Min Cho, Chang Il Tae
  • Publication number: 20210313498
    Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.
    Type: Application
    Filed: October 23, 2020
    Publication date: October 7, 2021
    Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
  • Publication number: 20210296538
    Abstract: The present application relates to a light emitting device, manufacturing method thereof, and a display device provided therewith. The light emitting device may include: a substrate; a first electrode provided on the substrate, and a second electrode disposed on a plane identical with a plane of the first electrode at a position spaced apart from the first electrode; at least one light emitting element provided on the substrate, and including a first end and a second end with respect to a longitudinal direction; a bridge pattern provided on the light emitting element, and coupled to the second end of the light emitting element; a first contact electrode provided on the substrate, and coupling the first electrode with the first end of the light emitting element; and a second contact electrode provided on the substrate, and coupling the bridge pattern with the second electrode.
    Type: Application
    Filed: December 20, 2018
    Publication date: September 23, 2021
    Inventors: Xinxing LI, Dae Hyun KIM, Veidhes BASRUR, Hee Keun LEE, Chang Il TAE