Patents by Inventor DaeWon RYU

DaeWon RYU 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: 12006312
    Abstract: Disclosed is a benzazole derivative having a heteroaryl group, wherein the benzazole derivative having the heteroaryl group is represented by Chemical Formula 1. Also disclosed is an organic electroluminescence device including an organic layer containing the benzazole derivative having the heteroaryl group: wherein, each of Z1, X1, X2, X3, Ar1, Ar2, Ar3, m1, m2 and q is the same as defined in the specification.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 11, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daewon Ryu, Dohan Kim, Hyeseung Kang, Sang Bae Han, Seong-Shik Moon, Kyousic Kim
  • Publication number: 20210198212
    Abstract: The present disclosure relates to an organic compound and an organic light emitting display device using the same wherein the organic compound is represented by Chemical Formula 1 and a display device using the organic compound. The organic compound represented by Chemical Formula 1 has excellent electron transport properties and durability and is used for an electron transport layer of an organic light emitting element, thereby lowering a driving voltage and improving the luminous efficiency and lifetime. (In the above Chemical Formula 1, at least two of X1, X2 and X3 are N, Y1 and Y2 are each independently a substituted or unsubstituted phenylene group or a single bond, at least one of Ar1 and Ar2 is selected from a substituted or unsubstituted triazine group, a functional group represented by Chemical Formula 2 and a functional group represented by Chemical Formula 3.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicants: LG DISPLAY CO., LTD., Lapto Co., Ltd.
    Inventors: DaeWon RYU, DoHan KIM, KyouSic KIM, ChulSoo LIM, MunSoo KIM
  • Patent number: 10673975
    Abstract: A content streaming service method for reducing communication cost and a system therefore are provided. The method includes receiving, by an electronic device, a file of content in a streaming scheme from a server through a network, and reproducing the content through an application driven in the electronic device, storing, by the electronic device, the received file in a local storage, generating, by the electronic device, a local server, the local server configured to operate in association with a memory of the electronic device, retrieving, by the electronic device, the file stored in the local storage according to the streaming scheme through the local server, and re-reproducing the content through the application.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 2, 2020
    Assignee: LINE Corporation
    Inventors: Sang Min Chung, DaeWon Ryu, JeeHong Lee, Cheol-Won Oh, Eunjin Joo
  • Patent number: 10644265
    Abstract: An organic light emitting display device has an optical multilayer film on an organic light emitting diode. The organic light emitting display device includes an organic light emitting element with a cathode, an anode, and an organic light emitting layer, and an optical multilayer film on the organic light emitting element. The optical multilayer film is constructed such that a full width at half maximum of light emitted from the organic light emitting element is larger than a full width at half maximum of light emitted from a structure in which the optical multilayer film is not used. The color shift depending on a viewing angle of the organic light emitting display device may be reduced to improve efficiency of the organic light emitting element.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 5, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Seonghee Noh, YoungNam Lim, SangHo Lee, DaeWon Ryu
  • Publication number: 20200010460
    Abstract: Disclosed is a benzazole derivative having a heteroaryl group, wherein the benzazole derivative having the heteroaryl group is represented by Chemical Formula 1. Also disclosed is an organic electroluminescence device including an organic layer containing the benzazole derivative having the heteroaryl group: wherein, each of Z1, X1, X2, X3, Ar1, Ar2, Ar3, m1, m2 and q is the same as defined in the specification.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Daewon Ryu, Dohan Kim, Hyeseung Kang, Sang Bae HAN, Seong-Shik Moon, Kyousic KIM
  • Publication number: 20190198791
    Abstract: Disclosed is an organic light emitting diode and an organic light emitting display including the same, where the organic light emitting diode includes: a first electrode; a light emitting stack disposed on the first electrode; and a second electrode disposed on the light emitting stack, where the light emitting stack includes a hole transport layer and a blue light emitting layer such that the hole transport layer and the blue light emitting layer are sequentially stacked on the first electrode, where the blue light emitting layer includes a blue host material and a blue fluorescent dopant material, and the hole transport layer includes a hole transport layer material. The blue fluorescent dopant material has a higher LUMO energy level than the blue host material and the blue fluorescent dopant material has a higher HOMO energy level than the blue host material.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 27, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Sangbeom KIM, Jeongdae SEO, Dohan KIM, Hyeseung KANG, Seonkeun YOO, Seunghee YOON, Daewon RYU, Jicheol SHIN
  • Patent number: 9929222
    Abstract: A substrate for an organic light emitting display device and an organic light emitting display device are provided. The substrate to the organic light emitting display device includes a protective layer having a non-flat shape; a first electrode on the protective layer and having the non-flat shape; and a bank layer on the protective layer and the first electrode. The bank layer having an opening for exposing the first electrode. The protective layer is formed at the opening of the bank layer and a part of an area with the bank layer.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: YoungNam Lim, SeungKyu Choi, SoonKwang Hong, SangHo Lee, DaeWon Ryu, Seonghee Noh
  • Publication number: 20170373277
    Abstract: An organic light emitting display device has an optical multilayer film on an organic light emitting diode. The organic light emitting display device includes an organic light emitting element with a cathode, an anode, and an organic light emitting layer, and an optical multilayer film on the organic light emitting element. The optical multilayer film is constructed such that a full width at half maximum of light emitted from the organic light emitting element is larger than a full width at half maximum of light emitted from a structure in which the optical multilayer film is not used. The color shift depending on a viewing angle of the organic light emitting display device may be reduced to improve efficiency of the organic light emitting element.
    Type: Application
    Filed: October 12, 2016
    Publication date: December 28, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Seonghee NOH, YoungNam LIM, SangHo LEE, DaeWon RYU
  • Publication number: 20170092705
    Abstract: A substrate for an organic light emitting display device and an organic light emitting display device are provided. The substrate to the organic light emitting display device includes a protective layer having a non-flat shape; a first electrode on the protective layer and having the non-flat shape; and a bank layer on the protective layer and the first electrode. The bank layer having an opening for exposing the first electrode. The protective layer is formed at the opening of the bank layer and a part of an area with the bank layer.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: YoungNam LIM, SeungKyu CHOI, SoonKwang HONG, SangHo LEE, DaeWon RYU, Seonghee NOH
  • Publication number: 20170013034
    Abstract: A content streaming service method for reducing communication cost and a system therefore are provided. The method includes receiving, by an electronic device, a file of content in a streaming scheme from a server through a network, and reproducing the content through an application driven in the electronic device, storing, by the electronic device, the received file in a local storage, generating, by the electronic device, a local server, the local server configured to operate in association with a memory of the electronic device, retrieving, by the electronic device, the file stored in the local storage according to the streaming scheme through the local server, and re-reproducing the content through the application.
    Type: Application
    Filed: June 23, 2016
    Publication date: January 12, 2017
    Applicant: LINE Corporation
    Inventors: Sang Min CHUNG, DaeWon RYU, JeeHong LEE, Cheol-Won OH, Eunjin JOO