Patents by Inventor Young-Rag Do

Young-Rag Do 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: 11967607
    Abstract: A light emitting device may include first electrodes and second electrodes that are spaced apart from each other in a first direction, light emitting elements electrically connected between adjacent first and second electrodes among the first and the second electrodes, and a third electrode spaced apart from the first electrodes and the second electrodes. The third electrode may be electrically separated from the first electrodes and the second electrodes.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: April 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Rag Do, Yun Jae Eo
  • Publication number: 20240021769
    Abstract: The present invention relates to a full-color LED display. According to the present invention, a surface of an ultra-thin pin LED device in contact with an electrode through dielectrophoresis becomes a surface rather than a side surface, thereby increasing a drivable mounting efficiency, which is advantageous for achieving a higher luminance full-color LED display.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 18, 2024
    Inventor: Young Rag DO
  • Publication number: 20240021588
    Abstract: The present invention relates to an LED electrode assembly, and more particularly, to an ultra-thin pin LED electrode assembly, a manufacturing method thereof, and a light source including the same. According to the present invention, the surface of the ultra-thin pin LED device in contact with the electrode through dielectrophoresis becomes a surface rather than a side surface, thereby increasing the drivable mounting efficiency. Further, by allowing a specific surface to selectively contact the mounting electrode, the range of driving power selection can be extended to DC power. Accordingly, it is advantageous to achieve a higher luminance LED electrode assembly.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 18, 2024
    Inventor: Young Rag DO
  • Publication number: 20240021768
    Abstract: The present invention relates to an LED electrode assembly, more particularly, to a micro-nanofin LED electrode assembly, a method for manufacturing the same, and a light source including the same.
    Type: Application
    Filed: April 27, 2021
    Publication date: January 18, 2024
    Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventor: Young Rag DO
  • Patent number: 11869920
    Abstract: An ultra-small light-emitting diode (LED) electrode assembly having an improved luminance is provided. More particularly, an ultra-small LED electrode assembly in which light, which is blocked by an electrode and cannot be extracted, is minimized, an ultra-small LED device is connected to an ultra-small electrode without a defect such as an electrical short-circuit, and a very excellent luminance is exhibited even at a direct current (DC) driving voltage, and a method of manufacturing the same are provided.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Rag Do, Yun Jae Eo, Yeon Goog Sung
  • Publication number: 20230411563
    Abstract: The present invention relates to an LED device, and more particularly, to an ultra-thin pin LED device and an ink composition including the same. According to the present invention, it is advantageous to achieve higher luminance and light efficiency by increasing the emission area and preventing or minimizing the reduction in efficiency due to surface defects. In addition, it is very suitable for a dielectrophoretic method of self-aligning the devices on electrodes by electric field, and the drivable mounting efficiency can be increased by ensuring that the surface in contact with the electrodes is a surface other than the side surfaces.
    Type: Application
    Filed: June 20, 2023
    Publication date: December 21, 2023
    Inventor: Young Rag DO
  • Patent number: 11800768
    Abstract: A full-color light emitting diode (LED) display having an improved luminance is provided herein. More specifically, provided herein are a full-color LED display, in which an amount of light blocked by electrodes and not extracted is minimized and ultra-small LED devices are connected to ultra-small electrodes without defects such as electrical short circuits and the like, wherein the full-color LED display exhibits a further improved luminance when a direct current (DC) driving voltage is used and each pixel of the full-color LED display exhibits uniform luminance when the DC driving voltage is used, and a method of manufacturing the same.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: October 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Rag Do, Yun Jae Eo, Yeon Goog Sung
  • Publication number: 20230335661
    Abstract: According to a main objective of the present invention, the three-dimensional arrangement of solar cells is adjusted so as to use sunlight directly coming from the sun mainly for solar power generation while transmitting wavelengths necessary for the growth of plants and reflecting wavelengths unnecessary for or hindering the growth of plants among wavelengths of sunlight passing through the solar cells to use the reflected wavelengths for additional solar power generation. Sunlight reflected by the dichroic optical filter may be used to additionally generate electricity using solar cells provided perpendicular to the dichroic optical filter, thereby maximizing the use efficiency of sunlight.
    Type: Application
    Filed: December 27, 2022
    Publication date: October 19, 2023
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Kookmin University Industry Academy Cooperation Foundation
    Inventors: Phillip LEE, Byoung Koun MIN, Je Hyeong JUNG, Young Rag DO, Chan Woo LEE
  • Publication number: 20230299295
    Abstract: Disclosed are a binder for a rechargeable lithium battery, a negative electrode including the binder, and a rechargeable lithium battery including the negative electrode. The binder may include a copolymer of a polymer electrolyte, a conductive polymer, and a polydentate chelating agent.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 21, 2023
    Inventors: Yunshik CHO, Jungmin LEE, Ju-Won JEON, Young Rag DO
  • Publication number: 20230223492
    Abstract: The present invention relates to an LED element, more particularly, to a micro-nanofin LED element and a method for manufacturing the same.
    Type: Application
    Filed: April 27, 2021
    Publication date: July 13, 2023
    Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventor: Young Rag DO
  • Publication number: 20230197694
    Abstract: The present disclosure relates to a light-emitting diode (LED) structure, and more particularly, to an LED structure having an asymmetric face, a method of manufacturing a direct-current-drivable LED electrode assembly using the same, and a direct-current-drivable LED electrode assembly manufactured thereby.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventor: Young Rag DO
  • Publication number: 20230197703
    Abstract: The present disclosure relates to a full-color light-emitting diode (LED) display, and more particularly, to a full-color LED display that may be driven by direct current (DC) and a method of manufacturing the same.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventor: Young Rag DO
  • Publication number: 20230187418
    Abstract: The present invention relates to a full-color LED display, more particularly, to a full-color LED display using micro-nanofin LED elements and manufacturing method thereof.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 15, 2023
    Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventor: Young Rag DO
  • Patent number: 11673001
    Abstract: The present disclosure provides a circadian rhythm correcting apparatus including a bio-illuminance measuring part configured to measure bio-illuminance of external light, a light source configured to irradiate light of a circadian wavelength band toward a retinal ganglion cell, a light source driver configured to drive the light source by supplying power to the light source, and a controller configured to control the light source driver on the basis of the bio-illuminance measured by the bio-illuminance measuring part, to correct the circadian rhythm.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 13, 2023
    Assignee: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Young Rag Do, Ji Hye Oh
  • Publication number: 20230170455
    Abstract: Provided is a ultra-small light-emitting diode (LED) electrode assembly including a base substrate; an electrode line formed on the base substrate, and including a first electrode and a second electrode formed in a line shape to be interdigitated with each other while being spaced apart from each other; and at least one ultra-small LED device connected to the electrode line. A cross section of at least one of the first and second electrodes in a vertical direction has a height variation such that the first and second electrodes easily come in contact with the at least one ultra-small LED device.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 1, 2023
    Inventors: Young Rag DO, Yeon Goog SUNG
  • Patent number: 11660464
    Abstract: Disclosed is a lighting device for bright therapy and dark therapy, comprising: a light source part including a red light source, a green light source and a blue light source; a power supply part supplying a power to the light source part; and a controller adjusting, by controlling the power supply part, a bio illuminance to allow melatonin suppression value to exceed a first reference value during morning hours and to allow the melatonin suppression value to be less than a second reference value while maintaining a visual illuminance over a predetermined value during evening hours.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: May 30, 2023
    Assignee: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Young Rag Do, Changwook Kim, Yun Jae Eo
  • Publication number: 20230126339
    Abstract: The present invention relates to an LED device, more particularly, to an ultra-thin fin LED device and a method for manufacturing the same.
    Type: Application
    Filed: October 26, 2022
    Publication date: April 27, 2023
    Applicant: Kookmin University Industry Academic Cooperation Foundation
    Inventor: Young Rag Do
  • Publication number: 20230130620
    Abstract: The present invention relates to a high-resolution ultra-thin light-emitting diode (LED) display and a manufacturing method thereof and relates to a display having very high resolving power and optical properties by introducing ultra-thin LED elements, and a manufacturing method capable of manufacturing the same with a very low defect rate.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 27, 2023
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventor: Young Rag DO
  • Publication number: 20230132210
    Abstract: The present invention relates to an ultra-thin light-emitting diode (LED) electrode assembly, a manufacturing method of the ultra-thin LED electrode assembly, and a transfer film of an ultra-thin LED used for manufacturing the ultra-thin LED electrode assembly and relates to an ultra-thin LED electrode assembly in which a plurality of LED elements are simultaneously transferred using a laser-assisted multi-chip transfer printing method to form and pattern the LED elements, thereby preventing process defects caused by omission of the LED elements during transfer and deviation thereof from an electrode line, and defects such as dark spots caused in an LED display, a manufacturing method of the ultra-thin LED electrode assembly, and a transfer film of an ultra-thin LED used for manufacturing the ultra-thin LED electrode assembly.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 27, 2023
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventor: Young Rag DO
  • Patent number: 11635176
    Abstract: The present invention relates to a nano-scale light emitting diode (LED) electrode assembly emitting polarized light, a method of manufacturing the same, and a polarized LED lamp having the same, and more particularly, to a nano-scale LED electrode assembly in which partially polarized light close to light that is linearly polarized having one direction is emitted as an emitted light when applying a driving voltage to the nano-scale LED electrode assembly and also nano-scale LED devices are connected to a nano-scale electrode without defects such as an electrical short circuit while maximizing a light extraction efficiency, a method of manufacturing the same, and a polarized LED lamp having the same.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Rag Do, Yeon Goog Sung