Patents by Inventor Yong Hoon Cho

Yong Hoon Cho 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: 11990559
    Abstract: A method of manufacturing a micro-light emitting diode (LED)-based display, and a micro-LED-based display are provided. The method includes forming a micro-LED partitioned in the unit of a plurality of sub-pixels on a semiconductor substrate, planarizing the micro-LED by forming a planarization layer on at least a portion of the micro-LED, forming a via hole in the planarization layer, and integrating the micro-LED and a thin-film transistor (TFT) for an operation of the sub-pixels by arranging and depositing the TFT on the planarized micro-LED.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 21, 2024
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-Hoon Cho, Young Chul Sim
  • Publication number: 20210143299
    Abstract: A method of manufacturing a micro-light emitting diode (LED)-based display, and a micro-LED-based display are provided. The method includes forming a micro-LED partitioned in the unit of a plurality of sub-pixels on a semiconductor substrate, planarizing the micro-LED by forming a planarization layer on at least a portion of the micro-LED, forming a via hole in the planarization layer, and integrating the micro-LED and a thin-film transistor (TFT) for an operation of the sub-pixels by arranging and depositing the TFT on the planarized micro-LED.
    Type: Application
    Filed: September 18, 2020
    Publication date: May 13, 2021
    Inventors: Yong-Hoon CHO, Young Chul SIM
  • Patent number: 11005004
    Abstract: Provided is a micro light emitting diode (LED) structure including an n-type semiconductor substrate layer, a light emitting structure layer formed on the n-type semiconductor substrate layer, and a p-type semiconductor layer formed on the light emitting structure layer, wherein the light emitting structure layer includes an arrangement of light emitting structures in which active layers including In and Ga are formed on tops thereof, wherein the light emitting structure layer forms at least three distinctive regions each including a single light emitting structure or a plurality of light emitting structures, the distinctive regions configured to emit light of at least two different wavelengths, the distinctive regions are controllable to emit light individually, and the distinctive regions are different in at least one of sizes of base faces, heights, and center-to-center distances of the lighting emitting structures of the regions.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 11, 2021
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon Cho, Youngchul Sim, Kie Young Woo
  • Patent number: 10586887
    Abstract: Disclosed are a deterministic quantum emitter operating at room temperature in an optical communication wavelength using the intersubband transition of a nitride-based semiconductor quantum dot, a method of fabricating the same, and an operating method thereof. A method of fabricating a quantum emitter includes forming a three-dimensional (3-D) structure in a substrate, forming an n type-doped thin film at the upper part of the 3-D structure, forming a quantum dot over the n type-doped thin film, regrowing the 3-D structure in order to use the 3-D structure as an optical structure, depositing a metal thin film at a vertex of the 3-D structure, and connecting electrodes to an n type-doped area and the metal thin film, respectively. A carrier may be captured in the quantum dot by applying a voltage to the connected electrodes. The quantum emitter may be driven by optically exciting the quantum dot.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 10, 2020
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon Cho, Hwanseop Yeo, JongHoi Cho
  • Patent number: 10325394
    Abstract: A communication terminal includes a transceiver to receive first touch information from a counterpart terminal, the first touch information having coordinate information of a touch input inputted by a user of the counterpart terminal, the coordinate information being identified based on a coordinate of the touch input on an image displayed on the counterpart terminal. An image signal processor of the communication terminal controls the first touch information to be displayed on a display of the communication terminal, and controls image information corresponding to the image displayed on the counterpart terminal to be displayed on the display in association with the first touch information, and controls the first touch information to be displayed on the image information.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 18, 2019
    Assignee: Apple Inc.
    Inventors: Sung-Sik Wang, Yong-Hoon Cho, Hoo-Doek Lee
  • Publication number: 20190123235
    Abstract: Provided is a micro light emitting diode (LED) structure including an n-type semiconductor substrate layer, a light emitting structure layer formed on the n-type semiconductor substrate layer, and a p-type semiconductor layer formed on the light emitting structure layer, wherein the light emitting structure layer includes an arrangement of light emitting structures in which active layers including In and Ga are formed on tops thereof, wherein the light emitting structure layer forms at least three distinctive regions each including a single light emitting structure or a plurality of light emitting structures, the distinctive regions configured to emit light of at least two different wavelengths, the distinctive regions are is controllable to emit light individually, and the distinctive regions are different in at least one of sizes of base faces, heights, and center-to-center distances of the lighting emitting structures of the regions.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 25, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon Cho, Youngchul Sim, Kie Young Woo
  • Publication number: 20190027645
    Abstract: Disclosed are a deterministic quantum emitter operating at room temperature in an optical communication wavelength using the intersubband transition of a nitride-based semiconductor quantum dot, a method of fabricating the same, and an operating method thereof. A method of fabricating a quantum emitter includes forming a three-dimensional (3-D) structure in a substrate, forming an n type-doped thin film at the upper part of the 3-D structure, forming a quantum dot over the n type-doped thin film, regrowing the 3-D structure in order to use the 3-D structure as an optical structure, depositing a metal thin film at a vertex of the 3-D structure, and connecting electrodes to an n type-doped area and the metal thin film, respectively. A carrier may be captured in the quantum dot by applying a voltage to the connected electrodes. The quantum emitter may be driven by optically exciting the quantum dot.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 24, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon Cho, Hwanseop Yeo, JongHoi Cho
  • Publication number: 20180232927
    Abstract: A communication terminal includes a transceiver to receive first touch information from a counterpart terminal, the first touch information having coordinate information of a touch input inputted by a user of the counterpart terminal, the coordinate information being identified based on a coordinate of the touch input on an image displayed on the counterpart terminal. An image signal processor of the communication terminal controls the first touch information to be displayed on a display of the communication terminal, and controls image information corresponding to the image displayed on the counterpart terminal to be displayed on the display in association with the first touch information, and controls the first touch information to be displayed on the image information.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 16, 2018
    Inventors: Sung-Sik WANG, Yong-Hoon CHO, Hoo-Doek LEE
  • Publication number: 20180198027
    Abstract: The present invention relates to an electron emitter, a method for manufacturing the same, and a light emitting apparatus comprising the same, and, more particularly, to an electron emitter comprising a semiconductor wafer having a nanostructure formed in at least a portion thereof. The present invention is capable of providing a large-area electron emitter, and also capable of providing a light emitting apparatus which has improved light emission efficiency and can be operated by an electron injection method.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 12, 2018
    Inventors: Yong Hoon Cho, Jong Hoi Cho, Je Hyung Kim
  • Patent number: 9965878
    Abstract: A communication terminal includes a transceiver to receive first touch information from a counterpart terminal, the first touch information having coordinate information of a touch input inputted by a user of the counterpart terminal, the coordinate information being identified based on a coordinate of the touch input on an image displayed on the counterpart terminal. An image signal processor of the communication terminal controls the first touch information to be displayed on a display of the communication terminal, and controls image information corresponding to the image displayed on the counterpart terminal to be displayed on the display in association with the first touch information, and controls the first touch information to be displayed on the image information.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 8, 2018
    Assignee: Apple Inc.
    Inventors: Sung-Sik Wang, Yong-Hoon Cho, Hoo-Doek Lee
  • Patent number: 9857302
    Abstract: An apparatus for manipulating surface near-field light resulting from light emitted from a light source that passes through a scattering layer is disclosed. Also, a method of finding a phase of incident light to cause constructive interference at a target spot using light scattering to manipulate the surface near-field.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 2, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yongkeun Park, Jung-Hoon Park, Yong-Hoon Cho, Chunghyun Park
  • Publication number: 20170231351
    Abstract: An improved type of eyelash curler with a single pivot and direct connection between the handles and the pressing parts allowing the user to curl the eyelashes without causing the parts other than the pressing parts to touch the user's face. The shape and structure of the curler as well as the pressing parts enable a more effective curling of the eyelashes as the structural parts are kept away from the user's sensitive facial skin.
    Type: Application
    Filed: February 11, 2016
    Publication date: August 17, 2017
    Inventor: Yong Hoon Cho
  • Publication number: 20160146731
    Abstract: An apparatus for manipulating surface near-field light resulting from light emitted from a light source that passes through a scattering layer is disclosed. Also, a method of finding a phase of incident light to cause constructive interference at a target spot using light scattering to manipulate the surface near-field.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yongkeun Park, Jung-Hoon Park, Yong-Hoon Cho, Chunghyun Park
  • Patent number: 9279764
    Abstract: An apparatus for manipulating surface near-field light resulting from light emitted from a light source that passes through a scattering layer is disclosed. Also, a method of finding a phase of incident light to cause constructive interference at a target spot using light scattering to manipulate the surface near-field.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 8, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yongkeun Park, Jung-Hoon Park, Yong-Hoon Cho, Chunghyun Park
  • Publication number: 20160042547
    Abstract: A communication terminal includes a transceiver to receive first touch information from a counterpart terminal, the first touch information having coordinate information of a touch input inputted by a user of the counterpart terminal, the coordinate information being identified based on a coordinate of the touch input on an image displayed on the counterpart terminal. An image signal processor of the communication terminal controls the first touch information to be displayed on a display of the communication terminal, and controls image information corresponding to the image displayed on the counterpart terminal to be displayed on the display in association with the first touch information, and controls the first touch information to be displayed on the image information.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 11, 2016
    Inventors: Sung-Sik WANG, Yong-Hoon Cho, Hoo-Doek Lee
  • Patent number: 9172906
    Abstract: A mobile communication terminal includes a display module to display image data on an image display area, an input module to generate touch data according to a touch input in a touch area, and a storage module to store the touch data associated with the image data. A data input method includes displaying image data on an image display area, generating touch data according to a touch input in a touch area, associating the touch data with the image data, and storing the touch data associated with the image data.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: October 27, 2015
    Assignee: Pantech Co., Ltd.
    Inventors: Sung-Sik Wang, Yong-Hoon Cho, Hoo-Doek Lee
  • Publication number: 20150002844
    Abstract: An apparatus for manipulating surface near-field light resulting from light emitted from a light source that passes through a scattering layer is disclosed. Also, a method of finding a phase of incident light to cause constructive interference at a target spot using light scattering to manipulate the surface near-field.
    Type: Application
    Filed: December 20, 2013
    Publication date: January 1, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yongkeun Park, Jung-Hoon Park, Yong-Hoon Cho, Chunghyun Park
  • Publication number: 20140191970
    Abstract: There is provided a method and a terminal to sets a touch lock layer. The terminal comprising, a display displaying a layer including an image object and an operable touch lock layer within being overlapped each other, an input unit receiving a user input for at least one of the displayed layers, and a control unit controlling the operable touch lock layer based on the user input.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 10, 2014
    Applicant: Pantech Co., Ltd.
    Inventors: Yong Hoon CHO, Sun Mi Kim
  • Publication number: 20140043427
    Abstract: A mobile communication terminal includes a display module to display image data on an image display area, an input module to generate touch data according to a touch input in a touch area, and a storage module to store the touch data associated with the image data. A data input method includes displaying image data on an image display area, generating touch data according to a touch input in a touch area, associating the touch data with the image data, and storing the touch data associated with the image data.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: Pantech Co., Ltd.
    Inventors: Sung-Sik WANG, Yong-Hoon CHO, Hoo-Doek LEE
  • Patent number: 8594740
    Abstract: A mobile communication terminal includes a display module to display image data on an image display area, an input module to generate touch data according to a touch input in a touch area, and a storage module to store the touch data associated with the image data. A data input method includes displaying image data on an image display area, generating touch data according to a touch input in a touch area, associating the touch data with the image data, and storing the touch data associated with the image data.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: November 26, 2013
    Assignee: Pantech Co., Ltd.
    Inventors: Sung-Sik Wang, Yong-Hoon Cho, Hoo-Doek Lee