Patents by Inventor Won-ho Yoon

Won-ho Yoon 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: 20240135863
    Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.
    Type: Application
    Filed: July 13, 2023
    Publication date: April 25, 2024
    Inventors: Won Jin SEO, Tae Wan KIM, Hwa An SUNG, Hyun Sik YOON, Jeong Ah LEE, Dae Ho HWANG
  • Patent number: 11963376
    Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
  • Patent number: 11925044
    Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
  • Patent number: 11925043
    Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moon Gyu Han, Heejae Lee, Eun Joo Jang, Tae Ho Kim, Kun Su Park, Won Sik Yoon, Hyo Sook Jang
  • Patent number: 6504297
    Abstract: Disclosed is a green-emitting phosphor composition comprising:75 to 95 wt % of a phosphor of the formula Y2SiO5:Tb, and 5 to 25 wt % of a phosphor of the formula SrGa2S4:Eu. The composition has excellent luminance, degradation and afterglow characteristics so that it can be advantageously used for manufacturing projection type CRTs.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: January 7, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Gyeong-jae Heo, Won-ho Yoon, Joa-young Jeong
  • Patent number: 6465946
    Abstract: A green-emitting phosphor composition and a cathode ray tube (CRT) manufactured using the same are provided. The composition including 5 to 50 wt % of a SrGa2S4:Eu phosphor and 50 to 95 wt % of a Y2(Al, Ga)5O12:Tb phosphor has excellent luminance, degradation and afterglow characteristics so that it can be advantageously used for manufacturing projection type CRTs.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: October 15, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Won-ho Yoon, Joa-young Jeong, Gyeong-jae Heo
  • Patent number: 5998918
    Abstract: A method of manufacturing a phosphor screen for a flickerless cathode ray tube comprising the steps of forming red and green phosphor layers on a panel for a cathode ray tube on which a black matrix is formed, forming a blue phosphor layer on said panel on which a black matrix is formed by coating the blue phosphor slurry and drying and forming a double phosphor layer by coating an ultraviolet phosphor slurry on said blue phosphor layer and drying, is provided.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 7, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Young-rag Do, Chang-won Park, Joon-bae Lee, Won-ho Yoon