Patents by Inventor Baek-Kyun Jeon

Baek-Kyun Jeon 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: 11061287
    Abstract: A photo alignment including a copolymer of a diamine and a dianhydride, wherein the copolymer includes a repeating unit including a first group derived from the diamine and a second group derived from the dianhydride, and wherein any one of the first group and the second group includes a photoreactive group and the other one of the first group and the second group includes at least one selected from a tert-butyl group, a tert-butoxy group, a tert-butyloxycarbonyl group, and a di-tert-butyloxycarbonyl group.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Soo Jung, Suk Hoon Kang, Baek Kyun Jeon
  • Patent number: 11042059
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 22, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taek Joon Lee, Young Gu Kim, Keun Chan Oh, Sun Young Chang, Hye Lim Jang, Baek Kyun Jeon, Jin Soo Jung, Kyung Seon Tak, Jae Jin Lyu, Moon Jung Baek
  • Patent number: 11029544
    Abstract: A display device including a first substrate, a pixel disposed on the first substrate and including first, second and third sub-pixel electrodes adjacent to each other, a second substrate spaced from the first substrate, a color conversion layer disposed on the second substrate and with a first wavelength conversion layer overlapping with the first sub pixel electrode and a second wavelength conversion layer overlapping with the second sub pixel electrode, a transmissive layer including a first sub-transmissive layer overlapping with the third sub-pixel electrode and a second sub-transmissive layer disposed between the first wavelength conversion layer and the second wavelength conversion layer, and a planarization layer disposed on the color conversion layer and the transmissive layer. Methods of manufacturing display devices having a flatter, planarization layer with reduced variations in thickness also is disclosed.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 8, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon
  • Patent number: 11029568
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Publication number: 20210126056
    Abstract: A display device includes a display area including a first light-emitting area and a second light-emitting area; a peripheral area adjacent to the display area; pixels which emit incident light; an encapsulation layer covering the pixels; a first color-converting pattern corresponding to the first light-emitting area and having a refractivity; a transmission pattern corresponding to the second light-emitting area and through which the incident light is transmitted; a low refractivity layer is in the display area and facing the encapsulation layer with each of the first color-converting pattern and the transmission pattern therebetween, the low refractivity layer including: a resin and a hollow particle which define a refractivity lower than the refractivity of the first color-converting pattern; and a first dam structure in the peripheral area and spaced apart from the display area, the first dam structure and the transmission pattern being portions of a same material layer.
    Type: Application
    Filed: June 24, 2020
    Publication date: April 29, 2021
    Inventors: Young Gu KIM, Ji Yun PARK, Jong Ho SON, Jong Min OK, Sun-Young CHANG, Hye Lim JANG, Baek Kyun JEON, Kyung Seon TAK
  • Patent number: 10962821
    Abstract: A display device includes a first base substrate; a liquid crystal layer disposed on the first base substrate; an overcoat layer disposed on the liquid crystal layer and including epoxy polymer; a color conversion layer disposed on the overcoat layer; and a second base substrate disposed on the color conversion layer. The epoxy polymer is a polymer obtained by polymerizing 1 part to 50 parts by weight of a cardo-based binder resin; 1 part to 50 parts by weight of an epoxy-based monomer; and 1 part to 50 parts by weight of a bisphenol-based resin, with respect to 100 parts by weight.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 30, 2021
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon
  • Publication number: 20210072600
    Abstract: An optical film for a display device, includes: a first refractive layer having an upper surface and a lower surface including first projections and second projections extending away from the lower surface in a first direction, the second projections having different heights than the first projections, the first projections having lateral sides with different angles of inclination that decrease in the first direction; and a second refractive layer disposed directly on the upper surface of the first refractive layer, the second refractive layer having a refractive index different from that of the first refractive layer.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 11, 2021
    Inventors: Hye Lim JANG, Young Gu KIM, Ji Yun PARK, Jong Ho SON, Jong Min OK, Sun Young CHANG, Baek Kyun JEON, Kyung Seon TAK
  • Publication number: 20210048712
    Abstract: A display device including: a first substrate; first through third subpixel electrodes which are disposed on the first substrate to neighbor each other; a second substrate opposing the first substrate; a first wavelength conversion pattern at least partially overlapping the first subpixel electrode and a second wavelength conversion pattern at least partially overlapping the second subpixel electrode; a first light transmission pattern at least partially overlapping the third subpixel electrode and a second light transmission pattern disposed between the first wavelength conversion pattern and the second wavelength conversion pattern; and a low refractive layer which has a lower refractive index than the first and second wavelength conversion patterns.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 18, 2021
    Inventors: Jin Soo JUNG, Young Gu KIM, Taek Joon LEE, Hye Lim JANG, Baek Kyun JEON, Kyung Seon TAK
  • Patent number: 10852580
    Abstract: A display device including: a first substrate; first through third subpixel electrodes which are disposed on the first substrate to neighbor each other; a second substrate opposing the first substrate; a first wavelength conversion pattern at least partially overlapping the first subpixel electrode and a second wavelength conversion pattern at least partially overlapping the second subpixel electrode; a first light transmission pattern at least partially overlapping the third subpixel electrode and a second light transmission pattern disposed between the first wavelength conversion pattern and the second wavelength conversion pattern; and a low refractive layer which has a lower refractive index than the first and second wavelength conversion patterns.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: December 1, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon, Kyung Seon Tak
  • Patent number: 10824012
    Abstract: A display device and a method of manufacturing a display device are provided. The display device includes: a base substrate; a color conversion pattern disposed on the base substrate; and a low refractive layer disposed on the base substrate, stacked with the color conversion pattern, and having a lower refractive index than the color conversion pattern. The low refractive layer includes a first base resin and particle clusters dispersed in the first base resin, and the particle clusters include a plurality of particles and bridges that combine the particles.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 3, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Keun Chan Oh, Sun Young Chang, Hye Lim Jang, Baek Kyun Jeon, Kyung Seon Tak
  • Publication number: 20200335563
    Abstract: A display device includes a bank including an opening exposing a surface of a base. The bank further includes side surfaces adjacent to an upper surface. The side surfaces slope downward from the upper surface toward an opening in an organic film pattern. A plurality of fine holes is formed on the upper surface and the side surfaces, the bank may also include a plurality of inner holes.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Inventors: Myung Hwan KIM, Suk Hoon KANG, Min Jae KIM, Hee Ra KIM, Beom Soo SHIN, Hong Yeon LEE, Baek Kyun JEON
  • Patent number: 10809550
    Abstract: A method of repairing a liquid crystal display device, the method including, providing a liquid crystal display device including a substrate, a light blocking member disposed on the substrate, and an overcoat layer which is disposed on the substrate and the light blocking member and which contains a material capable of absorbing ultraviolet light having a wavelength range from 200 nanometers to 400 nanometers; and irradiating the overcoat layer with a laser beam having a wavelength range from 200 nanometers to 400 nanometers to form a microcavity between the substrate and the overcoat layer to repair the liquid crystal display.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Gu Kim, Hyun Ku Ahn, Baek Kyun Jeon, Jae Weon Hur
  • Publication number: 20200319516
    Abstract: A quantum dot, a color conversion panel, and a display device, the quantum dot including a core; and a shell layer positioned outside of the core, wherein at least one of the core and the shell layer is doped with aluminum, silicon, titanium, magnesium, or zinc, and the core includes a Group III-V compound.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Kyoung Won PARK, Baek Hee LEE, Min Ki NAM, Hyeok Jin LEE, Keun Chan OH, Jae Jin LYU, Baek Kyun JEON, Sungjun KOH, Doh Chang LEE
  • Publication number: 20200292859
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Taek Joon LEE, Young Gu KIM, Keun Chan OH, Sun Young CHANG, Hye Lim JANG, Baek Kyun JEON, Jin Soo JUNG, Kyung Seon TAK, Jae Jin LYU, Moon Jung BAEK
  • Patent number: 10770523
    Abstract: A display device includes a bank including an opening exposing a surface of a base. The bank further includes side surfaces adjacent to an upper surface. The side surfaces slope downward from the upper surface toward an opening in an organic film pattern. A plurality of fine holes are formed on the upper surface and the side surfaces, the bank may also include a plurality of inner holes.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung Hwan Kim, Suk Hoon Kang, Min Jae Kim, Hee Ra Kim, Beom Soo Shin, Hong Yeon Lee, Baek Kyun Jeon
  • Patent number: 10741627
    Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor on the substrate, an organic light emitting diode on the thin film transistor, and including a first electrode connected with the thin film transistor, and a black organic layer between the thin film transistor and the first electrode, and including a black protrusion spaced from the first electrode.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: August 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Soo Jung, Hyeok Jin Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 10725340
    Abstract: A quantum dot, a color conversion panel, and a display device, the quantum dot including a core; and a shell layer positioned outside of the core, wherein at least one of the core and the shell layer is doped with aluminum, silicon, titanium, magnesium, or zinc, and the core includes a Group III-V compound.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: July 28, 2020
    Assignees: Samsung Display Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Kyoung Won Park, Baek Hee Lee, Min Ki Nam, Hyeok Jin Lee, Keun Chan Oh, Jae Jin Lyu, Baek Kyun Jeon, Sungjun Koh, Doh Chang Lee
  • Patent number: 10678091
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 9, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taek Joon Lee, Young Gu Kim, Keun Chan Oh, Sun Young Chang, Hye Lim Jang, Baek Kyun Jeon, Jin Soo Jung, Kyung Seon Tak, Jae Jin Lyu, Moon Jung Baek
  • Publication number: 20200110315
    Abstract: A photo alignment including a copolymer of a diamine and a dianhydride, wherein the copolymer includes a repeating unit including a first group derived from the diamine and a second group derived from the dianhydride, and wherein any one of the first group and the second group includes a photoreactive group and the other one of the first group and the second group includes at least one selected from a tert-butyl group, a tert-butoxy group, a tert-butyloxycarbonyl group, and a di-tert-butyloxycarbonyl group.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Inventors: Jin-Soo JUNG, Suk Hoon KANG, Baek Kyun JEON
  • Patent number: 10593842
    Abstract: Provided are display device and method for fabricating the same. According to an aspect of the present disclosure, there is provided a display device comprising: a first substrate; at least one wavelength conversion layer disposed on the first substrate; a capping layer disposed on the wavelength conversion layer and comprising a porous layer; and a first polarizing layer disposed on the capping layer.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: March 17, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon, Jin Soo Jung