Patents by Inventor Yeong Rong PARK

Yeong Rong PARK 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: 10418576
    Abstract: A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: September 17, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Chan Kim, Ji Young Moon, Yeong Rong Park, Dong Kyu Seo, Myung Chul Yeo, Ji Hye Lee, Hyung Seok Jang, Won Jong Kim, Yoon Hyeung Cho
  • Publication number: 20190081266
    Abstract: A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 14, 2019
    Inventors: Dong Chan KIM, Ji Young MOON, Yeong Rong PARK, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Hyung Seok JANG, Won Jong KIM, Yoon Hyeung CHO
  • 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
  • Publication number: 20180375048
    Abstract: A light-emitting diode includes a first electrode, a second electrode, a light-emitting layer, and a hole transfer layer. The light-emitting layer is disposed between the first electrode and the second electrode. The hole transfer layer is disposed between the light-emitting layer and the second electrode. The hole transfer layer includes an organic material. At least one of tellurium or a telluride compound of a transition metal is doped in the organic material included in the hole transfer layer.
    Type: Application
    Filed: January 8, 2018
    Publication date: December 27, 2018
    Inventors: Dong Chan KIM, Won Jong KIM, Ji Young MOON, Yeong Rong PARK, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Yoon Hyeung CHO
  • Patent number: 10108050
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and a realignment property diamine, wherein two or more aromatic rings in the realignment property diamine are connected by an ester group.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeong Rong Park, Suk Hoon Kang, Mi Hwa Lee, Baek Kyun Jeon
  • Publication number: 20180127548
    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: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Suk Hoon KANG, Yeong Rong PARK, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON
  • Patent number: 9890249
    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: September 8, 2014
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 9829747
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer and a liquid crystal layer. The second substrate faces the first substrate. The liquid crystal layer is disposed between the first alignment layer and the second alignment layer. The first alignment layer and the second alignment layer each include a polyimide compound polymerized by cyclobutane-1,2,3,4-tetracarboxylic dianhydride and cyclobutane-1,2,3,4-tetracarboxylic dianhydride derivative.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk-Hoon Kang, Yeong-Rong Park, Mi-Hwa Lee, Jun-Woo Lee, Bong-Sung Seo, Baek-Kyun Jeon
  • Patent number: 9459495
    Abstract: Provided is a liquid crystal display that includes: a first substrate; a thin film transistor disposed on the first substrate; a first electrode connected to the thin film transistor; and a first alignment layer disposed on the first electrode. The first alignment layer is formed by polymerizing a diamine and at least one of cyclobutane dianhydride (CBDA) and a cyclobutane dianhydride (CBDA) derivative. A decomposition efficiency representing a change in imidization ratio included before and after light exposure of the first alignment layer is in a range of 10% to 30%.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Sang Hee Yu, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon, Pil Ho Huh
  • Patent number: 9134573
    Abstract: A method of manufacturing a photo-alignment layer, includes: disposing a polymer material on a substrate; pre-baking the polymer material disposed on the substrate; irradiating a light to the pre-baked polymer material, to photo-align the pre-baked polymer material; and thermal-treating the irradiated pre-baked polymer material, to harden the irradiated pre-baked polymer material. The thermal-treating includes a first thermal-treatment, and a second thermal-treatment at a higher temperature than the first thermal-treatment.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: September 15, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Hwa Lee, Suk Hoon Kang, Yeong Rong Park, Jun-Woo Lee, Baek Kyun Jeon
  • Publication number: 20150240032
    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: Application
    Filed: September 8, 2014
    Publication date: August 27, 2015
    Inventors: Suk Hoon KANG, Yeong Rong PARK, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON
  • Publication number: 20150241739
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and a realignment property diamine, wherein two or more aromatic rings in the realignment property diamine are connected by an ester group.
    Type: Application
    Filed: September 8, 2014
    Publication date: August 27, 2015
    Inventors: Yeong Rong PARK, Suk Hoon KANG, Mi Hwa LEE, Baek Kyun JEON
  • Publication number: 20150205167
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer and a liquid crystal layer. The second substrate faces the first substrate. The liquid crystal layer is disposed between the first alignment layer and the second alignment layer. The first alignment layer and the second alignment layer each include a polyimide compound polymerized by cyclobutane-1,2,3,4-tetracarboxylic dianhydride and cyclobutane-1,2,3,4-tetracarboxylic dianhydride derivative.
    Type: Application
    Filed: June 24, 2014
    Publication date: July 23, 2015
    Inventors: SUK-HOON KANG, Yeong-Rong Park, Mi-Hwa Lee, Jun-Woo Lee, Bong-Sung Seo, Baek-Kyun Jeon
  • Publication number: 20150160515
    Abstract: Provided is a liquid crystal display that includes: a first substrate; a thin film transistor disposed on the first substrate; a first electrode connected to the thin film transistor; and a first alignment layer disposed on the first electrode. The first alignment layer is formed by polymerizing a diamine and at least one of cyclobutane dianhydride (CBDA) and a cyclobutane dianhydride (CBDA) derivative. A decomposition efficiency representing a change in imidization ratio included before and after light exposure of the first alignment layer is in a range of 10% to 30%.
    Type: Application
    Filed: June 6, 2014
    Publication date: June 11, 2015
    Inventors: Suk Hoon KANG, Yeong Rong PARK, Sang Hee YU, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON, Pil Ho HUH
  • Publication number: 20150104893
    Abstract: A method of manufacturing a photo-alignment layer, includes: disposing a polymer material on a substrate; pre-baking the polymer material disposed on the substrate; irradiating a light to the pre-baked polymer material, to photo-align the pre-baked polymer material; and thermal-treating the irradiated pre-baked polymer material, to harden the irradiated pre-baked polymer material. The thermal-treating includes a first thermal-treatment, and a second thermal-treatment at a higher temperature than the first thermal-treatment.
    Type: Application
    Filed: July 29, 2014
    Publication date: April 16, 2015
    Inventors: Mi Hwa LEE, Suk Hoon KANG, Yeong Rong PARK, Jun-Woo LEE, Baek Kyun JEON
  • Publication number: 20150085237
    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: Application
    Filed: April 24, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Suk Hoon KANG, Hoi-Lim KIM, Yeong Rong PARK, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON