Patents by Inventor Hoi-Lim Kim

Hoi-Lim 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: 20240065095
    Abstract: Embodiments provide a composition for an electron transporting layer and a method for manufacturing a display device including the same. The composition includes inorganic particles, peroxide, a hydrocarbon compound, and a solvent. A method for manufacturing a display device includes forming a first electrode on a substrate, forming a light emitting layer on the first electrode, forming an electron transporting layer on the light emitting layer, and forming a second electrode on the electron transporting layer, wherein the electron transporting layer is formed of a composition for an electron transporting layer including inorganic particles, peroxide, a hydrocarbon compound, and a solvent.
    Type: Application
    Filed: March 10, 2023
    Publication date: February 22, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Hee YU, Gyu Bong KIM, Hoi Lim KIM, Se Hun KIM, Ju Yon LEE
  • Publication number: 20230389405
    Abstract: A method for manufacturing a light emitting device includes: providing a base layer and forming an electron transport layer including first and second transport regions. The forming of the electron transport layer includes: applying an electron transport composition including a metal oxide and a photoacid generator such that first and second preliminary transport regions are formed, and irradiating the first and second preliminary transport regions with light, and in the irradiating with the light, the amount of light per unit area irradiated on the first preliminary transport region is different from the amount of light per unit area irradiated on the second preliminary transport region.
    Type: Application
    Filed: February 12, 2023
    Publication date: November 30, 2023
    Inventors: HOI-LIM KIM, SANGHEE YU, GYUBONG KIM, SEHUN KIM, JUYON LEE, SUN-GYU JUNG, HYUNG UK CHO
  • Publication number: 20230174853
    Abstract: A quantum dot composition according to an embodiment of the disclosure includes a quantum dot, a first compound including a first functional group, and a solvent, and the first functional group includes at least one among an acetal group and a ketal group.
    Type: Application
    Filed: December 7, 2022
    Publication date: June 8, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: SANGHEE YU, GYUBONG KIM, HOI-LIM KIM
  • Publication number: 20230002313
    Abstract: A light emitting element according to an embodiment includes a first electrode, a second electrode overlapping the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron transport region disposed between the emission layer and the second electrode, wherein the electron transport region includes a thermal acid generator (TAG). A method of manufacturing a light emitting element is also provided.
    Type: Application
    Filed: June 9, 2022
    Publication date: January 5, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Hee YU, Hoi-Lim KIM, Jae Hong PARK, Gyu Bong KIM, Seung Uk NOH, Ju Yon LEE
  • Publication number: 20220344588
    Abstract: An electron transport composition includes a metal oxide and a photoacid generator, wherein the photoacid generator has at least one of a halogenated triazine-based compound or an oxime sulfonate-based compound. When the electron transport composition is applied to a light-emitting element, the light-emitting element may exhibit improved luminous efficiency characteristics and element lifespan characteristics.
    Type: Application
    Filed: March 17, 2022
    Publication date: October 27, 2022
    Inventors: SANGHEE YU, GYUBONG KIM, HOI-LIM KIM, SUNGWOON KIM, HYUNMI DOH, JAE HONG PARK, SEIHWAN AHN
  • Publication number: 20220139871
    Abstract: A light-emitting element ink and a method of manufacturing a display device using the light-emitting element ink are provided. The light-emitting element ink comprises a solvent, a dispersant mixed with the solvent, and a plurality of light-emitting elements dispersed in the solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film surrounding parts of outer surfaces of the semiconductor layers, wherein the dispersant includes an aqueous dispersant or an organic dispersant, if the dispersant is the aqueous dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of less than 7, and if the dispersant is the organic dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of 7 or greater.
    Type: Application
    Filed: October 18, 2021
    Publication date: May 5, 2022
    Inventors: Na Mi HONG, Hyo Jin KO, Duk Ki KIM, Jun Bo SIM, Chang Hee LEE, Jae Kook HA, Gyu Bong KIM, Hoi Lim KIM
  • Publication number: 20220093817
    Abstract: An ink includes a solvent, and light-emitting elements dispersed in the solvent, each of the light-emitting elements comprising semiconductor layers and an insulating film partially surrounding outer surfaces of the semiconductor layers, wherein the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 24, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyo Jin KO, Duk Ki KIM, Yong Hwi KIM, Jun Bo SIM, Na Mi HONG, Jong Hyuk KANG, Gyu Bong KIM, Hoi Lim KIM, Sae Na YUN, Chang Hee LEE, Hyun Deok IM, Eun A CHO, Jae Kook HA
  • Patent number: 11264437
    Abstract: A display device includes a substrate, a thin film transistor provided on the substrate, a first electrode connected to the thin film transistor, a second electrode overlapping the first electrode, and a partition wall and a light-emitting device layer provided between the first electrode and the second electrode. The partition wall may include a main chain and a side chain connected to the main chain, and a carbon number of the side chain may be equal to or greater than 14.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: March 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Min-Jae Kim, Beom-Soo Shin, Keun Chan Oh, Hong Yeon Lee
  • Patent number: 10745622
    Abstract: An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, wherein the copolymer includes a repeating unit represented by Formula 1: wherein each of Ar1 and Ar2 is independently a substituted or unsubstituted aromatic group comprising 6 to 30 carbon atoms, X is an electron donating group, and is an ester group, wherein “*” indicates a point of attachment to the aromatic groups Ar1 and Ar2.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: August 18, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Ran Kim, Suk Hoon Kang, Hoi Lim Kim, Young Mi Cho
  • Publication number: 20190348484
    Abstract: A display device includes a substrate, a thin film transistor provided on the substrate, a first electrode connected to the thin film transistor, a second electrode overlapping the first electrode, and a partition wall and a light-emitting device layer provided between the first electrode and the second electrode. The partition wall may include a main chain and a side chain connected to the main chain, and a carbon number of the side chain may be equal to or greater than 14.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 14, 2019
    Inventors: Suk Hoon KANG, Hoi-Lim KIM, Min-Jae KIM, Beom-Soo SHIN, Keun Chan OH, Hong Yeon LEE
  • Patent number: 10202491
    Abstract: A liquid crystal photoalignment agent is provided. The liquid crystal photoalignment agent is a copolymer of a cyclobutane dianhydride (“CBDA”) and a CBDA derivative.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: February 12, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 10197865
    Abstract: A manufacturing method of a liquid crystal display, including: applying a photoalignment agent on a substrate; baking the applied photoalignment agent; forming a photoalignment layer by irradiating the baked photoalignment agent with polarized light; baking the photoalignment layer; and removing at least one decomposed unit by cleaning the baked photoalignment layer using a cleaning solution including at least one of propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, or ethyl lactate.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Jong Hwan Jeon, Jin-Soo Jung, In Ok Kim, Baek Kyun Jeon
  • Patent number: 10087371
    Abstract: A liquid crystal composition and a liquid crystal display, the composition including a liquid crystal compound represented by Chemical Formula 1 below:
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hwan Hong, Hoi-Lim Kim, Da Hye Cho, Young Mi Cho
  • Publication number: 20180148650
    Abstract: An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, wherein the copolymer includes a repeating unit represented by Formula 1: wherein each of Ar1 and Ar2 is independently a substituted or unsubstituted aromatic group comprising 6 to 30 carbon atoms, X is an electron donating group, and is an ester group, wherein “*” indicates a point of attachment to the aromatic groups Ar1 and Ar2.
    Type: Application
    Filed: January 24, 2018
    Publication date: May 31, 2018
    Inventors: Se Ran KIM, Suk Hoon KANG, Hoi Lim KIM, Young Mi CHO
  • Patent number: 9909066
    Abstract: An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, wherein the copolymer includes a repeating unit represented by Formula 1: wherein each of Ar1 and Ar2 is independently a substituted or unsubstituted aromatic group comprising 6 to 30 carbon atoms, X is an electron donating group, and is an ester group, wherein “*” indicates a point of attachment to the aromatic groups Ar1 and Ar2.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 6, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Ran Kim, Suk Hoon Kang, Hoi Lim Kim, Young Mi Cho
  • Publication number: 20170306236
    Abstract: An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, wherein the copolymer includes a repeating unit represented by Formula 1: wherein each of Ar1 and Ar2 is independently a substituted or unsubstituted aromatic group comprising 6 to 30 carbon atoms, X is an electron donating group, and is an ester group, wherein “*” indicates a point of attachment to the aromatic groups Ar1 and Ar2.
    Type: Application
    Filed: August 18, 2016
    Publication date: October 26, 2017
    Inventors: Se Ran KIM, Suk Hoon KANG, Hoi Lim KIM, Young Mi CHO
  • Publication number: 20170204331
    Abstract: A liquid crystal composition and a liquid crystal display, the composition including a liquid crystal compound represented by Chemical Formula 1 below:
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Inventors: Sung-Hwan HONG, Hoi-Lim KIM, Da Hye CHO, Young Mi CHO
  • Publication number: 20170023832
    Abstract: A manufacturing method of a liquid crystal display, including: applying a photoalignment agent on a substrate; baking the applied photoalignment agent; forming a photoalignment layer by irradiating the baked photoalignment agent with polarized light; baking the photoalignment layer; and removing at least one decomposed unit by cleaning the baked photoalignment layer using a cleaning solution including at least one of propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, or ethyl lactate.
    Type: Application
    Filed: January 22, 2016
    Publication date: January 26, 2017
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Jong Hwan Jeon, Jin-Soo Jung, In Ok Kim, Baek Kyun Jeon
  • Publication number: 20170015904
    Abstract: A liquid crystal composition includes a first compound represented by Chemical Formula 1. In Chemical Formula 1, R1 is an alkyl group having a carbon number of 1 to 10 or a cycloalkyl group having a total carbon number of 3 to 16, and R2 is an alkoxy group having a carbon number of 1 to 10. The liquid crystal composition does not include a compound having an alkenyl as a substituent group, and the liquid crystal composition does not include a compound represented by Chemical Formula 4. In Chemical Formula 4, R5 and R5? are independently an alkyl group having a carbon number of 1 to 10 or an alkoxy group having a carbon number of 1 to 10.
    Type: Application
    Filed: January 21, 2016
    Publication date: January 19, 2017
    Inventors: Soon Joon Rho, Sun Young Kwon, Kyung Min Kim, Se Ran Kim, Si Heun Kim, Hoi-Lim Kim, Beom-Soo Shin, Keun Chan Oh, Hye Kim Jang
  • Patent number: 9472149
    Abstract: A display apparatus includes a display panel having a first liquid crystal layer, a timing controller that converts image signals to have gray scales corresponding to a first reference value, and compensates the converted image signals to over-drive the first liquid crystal layer, the first reference value being a product of a refractive index anisotropy and a thickness of the first liquid crystal layer, a first driver that converts the compensated image signals to voltages that drive the first liquid crystal layer, a liquid crystal lens panel including a second liquid crystal layer, a liquid crystal lens controller that generates lens signals corresponding to a second reference value defined by a product of a refractive index anisotropy and a second thickness of the second liquid crystal layer, and a second driver that convert the lens signals to voltages that drive the second liquid crystal layer.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 18, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: YongHwan Shin, Hoi-Lim Kim, Hongyeon Lee