Patents by Inventor Namseok YOO

Namseok YOO 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: 20200365669
    Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: Mi-Na KIM, Namseok YOO, JungSun BEAK, Seongjoo LEE, Sunmi LEE
  • Patent number: 10756288
    Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 25, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Kim, Namseok Yoo, JungSun Beak, Seongjoo Lee, Sunmi Lee
  • Publication number: 20200194711
    Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 18, 2020
    Inventors: Mi-Na KIM, Namseok YOO, JungSun BEAK, Seongjoo LEE, Sunmi LEE
  • Publication number: 20200194713
    Abstract: A display panel can include a substrate including first, second and third subpixels; an overcoat layer including a first inclined surface in at least one of the first, second and third subpixels; first, second and third anode electrodes corresponding to the first, second and third subpixels, respectively, wherein at least one of the first, second and third anode electrodes includes a second inclined surface overlapping with the first inclined surface of the overcoat layer; first, second and third organic light emitting layers disposed on the first, second and third anode electrodes, respectively; and a bank layer disposed on the overcoat layer, the bank layer including a third inclined surface overlapping with both the first and second inclined surfaces of the overcoat layer and the at least one of the first, second and third anode electrodes, in which at least one of the first, second and third inclined surfaces is configured to reflect light emitted from a corresponding one of the first, second and third or
    Type: Application
    Filed: December 16, 2019
    Publication date: June 18, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Mi-Na KIM, JungSun BAEK, Seongjoo LEE, Sunmi LEE, Namseok YOO
  • Patent number: 10276828
    Abstract: An organic light-emitting display (OLED) apparatus includes an organic light-emitting device including an anode, an organic light-emitting layer, and a cathode. The OLED apparatus also includes an encapsulation element covering the organic light-emitting device, and a particular layer disposed between the organic light-emitting device and the encapsulation element. The particular layer is doped with a light absorption material that absorbs light having a wavelength shorter than a wavelength of light emitted from the organic light-emitting device so that variation in characteristics of the organic light-emitting device by external light is reduced. Accordingly, the lifespan of the OLED apparatus can be improved.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 30, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SunKap Kwon, Namseok Yoo
  • Publication number: 20170155085
    Abstract: An organic light-emitting display (OLED) apparatus includes an organic light-emitting device including an anode, an organic light-emitting layer, and a cathode. The OLED apparatus also includes an encapsulation element covering the organic light-emitting device, and a particular layer disposed between the organic light-emitting device and the encapsulation element. The particular layer is doped with a light absorption material that absorbs light having a wavelength shorter than a wavelength of light emitted from the organic light-emitting device so that variation in characteristics of the organic light-emitting device by external light is reduced. Accordingly, the lifespan of the OLED apparatus can be improved.
    Type: Application
    Filed: October 28, 2016
    Publication date: June 1, 2017
    Inventors: SunKap KWON, Namseok YOO
  • Publication number: 20160172615
    Abstract: An organic light emitting display is disclosed. The organic light emitting display includes an emission layer formed between two electrodes positioned on a substrate. The emission layer includes a host of fluorescent materials and a dopant of phosphorescent materials. A host photoluminescence (PL) region formed by the host of the fluorescent materials indicates a spectrum overlapping a MLCT3 (metal-to-ligand charge transfer: MLCT) region of a dopant ultraviolet (UV) absorption region formed by the dopant of the phosphorescent materials.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 16, 2016
    Inventors: Hyunsuk KIM, Kyuil HAN, Namseok YOO