Patents by Inventor Byungchul An

Byungchul An 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: 20220177779
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Byungchul HONG
  • Publication number: 20220181311
    Abstract: A display module is provided. The display module includes: a substrate; a thin film transistor (TFT) layer formed on one surface of the substrate; and a plurality of micro LEDs disposed on the TFT layer. The plurality of micro LEDs are transferred from a transfer substrate to the TFT layer by a laser beam radiated to the transfer substrate through openings of a mask. The openings correspond to regions in which the respective micro LEDs of the transfer substrate are arranged and the openings correspond to a width, a length, or a unit area of each of the micro LEDs.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung KWAG, Byungchul KIM, Eunhye KIM, Sangmoo PARK, Minsub OH, Dongyeob LEE, Yoonsuk LEE
  • Publication number: 20220179437
    Abstract: A mobile device includes; a PCB including a first side and a second side, a PMIC generating power supply voltages and mounted on the second side of the PCB, a package substrate mounted on the first side of PCB using first interconnects, an IC mounted on the first side of the package substrate, LDO regulators mounted on the second side of the package substrate and disposed between the first interconnects, and high density capacitors disposed between each of the LDO regulators and the second side of the package substrate, wherein the PCB includes first electrical paths connecting the PMIC to the LDO regulators, and the package substrate includes second electrical paths connecting the LDO regulators to the IC.
    Type: Application
    Filed: August 30, 2021
    Publication date: June 9, 2022
    Inventors: KYOUNGMIN LEE, CHANGSOO KIM, BYUNGCHUL JEON, JUNGHUN HEO, JUNHO HUH
  • Publication number: 20220173270
    Abstract: A micro light emitting diode (LED) transfer device includes a transfer part configured to transfer a relay substrate having at least one micro LED; a mask having openings corresponding to a position of the at least one micro LED; a first laser configured to irradiate a first laser light having a first wavelength to the mask; a second laser configured to irradiate a second laser light having a second wavelength different from the first wavelength to the mask; and a processor configured to: control the at least one micro LED to contact a coupling layer of a target substrate, and based on the coupling layer contacting the at least one micro LED, control the first laser to irradiate the first laser light toward the at least one micro LED, and subsequently control the second laser to irradiate the second laser light toward the at least one micro LED.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsuk LEE, Sangmoo Park, Doyoung Kwag, Byungchul Kim, Eunhye Kim, Minsub Oh, Dongyeob Lee
  • Patent number: 11348821
    Abstract: The application is related to a laser transfer apparatus and a method performed by the laser transfer apparatus. The laser transfer apparatus may include: a laser oscillator configured to perform irradiation with a laser beam; a first stage movably disposed below the laser oscillator; a second stage movably disposed below the first stage; a flatness measurement sensor; and a controller. The controller may be configured to control, once a transfer substrate on which a plurality of light emitting diodes (LEDs) are arranged is loaded on the first stage, and a target substrate is loaded on the second stage, the flatness measurement sensor to measure flatness of each of the transfer substrate and the target substrate, and adjust a height of at least one of the first stage or the second stage based on the flatness.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung Kwag, Byungchul Kim, Sangmoo Park, Minsub Oh
  • Publication number: 20220167492
    Abstract: An apparatus for generating extreme ultraviolet (EUV) light includes a raw material supply unit supplying a plasma source for generating EUV light. An EUV light source unit uses a laser to generate plasma from the plasma source. A filter is configured to extract EUV light from the light. A first protective layer is disposed on a front surface of the filter. A frame having a first region exposing at least a portion of the filter or the first protective layer is disposed on the first protective layer. A width of the first region is smaller than a width of the first protective layer and smaller than or equal to a width of the filter.
    Type: Application
    Filed: September 7, 2021
    Publication date: May 26, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: JIHOON NA, MUN JA KIM, JAEWHAN SUNG, BYUNGCHUL YOO, JIBEOM YOO, HAKSEOK LEE, MYEONGJIN JEONG, HYUNJUNE CHO
  • Publication number: 20220135855
    Abstract: An adhesive composition, a method for preparing the same, a reticle assembly including the same, and a method for fabricating the reticle assembly including the same are provided. The adhesive composition includes a polyphenol compound including tannic acid, a polymer including polyvinyl alcohol, and a solvent including water and alcohol.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 5, 2022
    Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Mun Ja KIM, Byungchul YOO, Haeshin LEE, Chang Young JEONG, Yunhan LEE
  • Publication number: 20220100076
    Abstract: A stud attachment device for attaching a plurality of studs to a photomask constituting a reticle. The stud attachment device including a body; a plurality of holders extending from the body, the holders allowing the studs to be laid thereon, respectively; and a pressure regulator for independently controlling pressures of the holders when the studs are attached to the photomask.
    Type: Application
    Filed: March 24, 2021
    Publication date: March 31, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Byungchul YOO, Sunghoon PARK, Mun Ja KIM
  • Patent number: 11289462
    Abstract: A display module is provided. The display module includes: a substrate; a thin film transistor (TFT) layer formed on one surface of the substrate; and a plurality of micro LEDs disposed on the TFT layer. The plurality of micro LEDs are transferred from a transfer substrate to the TFT layer by a laser beam radiated to the transfer substrate through openings of a mask. The openings correspond to regions in which the respective micro LEDs of the transfer substrate are arranged and the openings correspond to a width, a length, or a unit area of each of the micro LEDs.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung Kwag, Byungchul Kim, Eunhye Kim, Sangmoo Park, Minsub Oh, Dongyeob Lee, Yoonsuk Lee
  • Patent number: 11289903
    Abstract: An apparatus includes a transistor coupled between an input pin and an output pin and an overvoltage detection circuit configured to receive a serial interface signal from the input pin and generate an enable signal in response to a voltage of the serial interface signal exceeding a voltage threshold. The apparatus also includes a first circuit configured to apply a clamping voltage to a gate of the transistor based on the enable signal to regulate a voltage provided at the output pin.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: March 29, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Byungchul Jang, Roland Son
  • Patent number: 11289622
    Abstract: A micro light emitting diode (LED) transfer device includes a transfer part configured to transfer a relay substrate having at least one micro LED; a mask having openings corresponding to a position of the at least one micro LED; a first laser configured to irradiate a first laser light having a first wavelength to the mask; a second laser configured to irradiate a second laser light having a second wavelength different from the first wavelength to the mask; and a processor configured to: control the at least one micro LED to contact a coupling layer of a target substrate, and based on the coupling layer contacting the at least one micro LED, control the first laser to irradiate the first laser light toward the at least one micro LED, and subsequently control the second laser to irradiate the second laser light toward the at least one micro LED.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsuk Lee, Sangmoo Park, Doyoung Kwag, Byungchul Kim, Eunhye Kim, Minsub Oh, Dongyeob Lee
  • Publication number: 20220085257
    Abstract: A semiconductor light emitting device including a semiconductor laminate having first and second surfaces, the semiconductor laminate including first and second conductivity-type semiconductor layers, and an active layer between the semiconductor layers; a partition structure on the first surface, the partition structure having a window defining a light emitting region of the first surface of the semiconductor laminate; a wavelength converter in the window, the wavelength converter being configured to convert a wavelength of light emitted from the active layer; and a first electrode and a second electrode on the second surface of the semiconductor laminate and respectively connected to the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, wherein the semiconductor laminate includes a plurality of first patterns arranged in the light emitting region of the first surface, and a plurality of second patterns arranged in a covered region of the first surface contacti
    Type: Application
    Filed: May 18, 2021
    Publication date: March 17, 2022
    Inventors: Kiwon PARK, Namsung KIM, Youngsub SHIN, Jonghyun LEE, Daemyung CHUN, Byungchul CHOI
  • Publication number: 20220069924
    Abstract: The present invention relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, a security and safety-related service, etc.) on the basis of 5G communication technology and IoT-related technology.
    Type: Application
    Filed: December 26, 2019
    Publication date: March 3, 2022
    Inventors: Byungchul KIM, Sanghoon PARK, Seungtae KO, Seungku HAN, Youngju LEE
  • Patent number: 11260646
    Abstract: A method of processing a substrate, with a first major surface of the substrate removably bonded to a first major surface of a first carrier and a second major surface of the substrate removably bonded to a first major surface of a second carrier, includes initiating debonding at a first location of an outer peripheral bonded interface between the substrate and the first carrier to separate a portion of the first carrier from the substrate. The method further includes propagating a first debond front from the first debonded location along a first direction extending away from the first debonded location by sequentially applying a plurality of lifting forces to the first carrier at a corresponding plurality of sequential lifting locations of the first carrier.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: March 1, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Christina Sue Bennett, Raymond Charles Cady, Hyun-Soo Choi, Claire Renata Coble, Byungchul Kim, Timothy Michael Miller, Joseph William Soper, Gary Carl Weber
  • Publication number: 20220037628
    Abstract: A display panel includes a first display substrate including first to third pixel areas and a light blocking area that is adjacent to the first to third pixel areas and a second display substrate including first to third display elements respectively overlapping the first to third pixel areas. The first display substrate includes a base substrate, a first color filter overlapping the first pixel area and having a first color, a second color filter overlapping the second pixel area and having a second color different from the first color, a third color filter disposed on the base substrate, having a third color different from the first and second colors, and including a filter portion overlapping the third pixel area and a light blocking portion overlapping the light blocking area, and a light blocking member disposed on the light blocking portion and containing a black organic pigment.
    Type: Application
    Filed: September 24, 2021
    Publication date: February 3, 2022
    Inventors: Sun-kyu JOO, Keunchan OH, Byungchul KIM, Inok KIM, Gakseok LEE, Jaemin SEONG, Inseok SONG, Jieun JANG
  • Patent number: 11240676
    Abstract: The present disclosure relates to a communication technique for the convergence of IoT technology and a 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart or connected cars, health care, digital education, retail business, and services associated with security and safety) on the basis of 5G communication technology and IoT-related technology. Disclosed is an analysis method and apparatus for performing an analysis procedure for network design at an improved speed while maintaining accuracy and reliability.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungmin Park, Byungchul Kim, Youngju Lee, Dongkyu Choi, Junghwan Choi, Seungku Han
  • Publication number: 20220027725
    Abstract: Systems and techniques are provided for sound model localization within an environment. Sound recordings of sounds in the environment may be received from devices in the environment. Preliminary labels for the sound recordings may be determined using pre-trained sound models. The preliminary labels may have associated probabilities. Sound clips with preliminary labels may be generated based on sound recordings that have preliminary labels whose probability is over a high-recall threshold for the pre-trained sound model that determined the preliminary label. The sound clips with preliminary labels may be sent to a user device. Labeled sound clips may be received from the user device. The labeled sound clips may be based on the sound clips with preliminary labels. Training data sets may be generated for the pre-trained sound models using the labeled sound clips. The pre-trained sound models may be trained using the training data sets to generate localized sound models.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 27, 2022
    Inventors: Rajeev Conrad Nongpiur, Byungchul Kim, Marie Vachovsky, Monica Song, Khe Chai Sim, Qian Zhang
  • Patent number: 11202209
    Abstract: The present disclosure relates to a communication technique for the convergence of IoT technology and a 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart or connected cars, health care, digital education, retail business, and services associated with security and safety) on the basis of 5G communication technology and IoT-related technology. Disclosed is an analysis method and apparatus for performing an analysis procedure for network design at an improved speed while maintaining accuracy and reliability.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungmin Park, Byungchul Kim, Youngju Lee, Dongkyu Choi, Junghwan Choi, Seungku Han
  • Patent number: 11165163
    Abstract: The present disclosure relates to: a communication technique for converging an IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system; and a system therefor. Specifically, the present invention provides a glass structure comprising: a glass formed to be permeable to radio waves; and a lens disposed on one side of the glass so as to change the incident angle of radio waves incident to the one side of the glass.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungtae Ko, Byungchul Kim, Yoongeon Kim, Youngju Lee
  • Patent number: 11165049
    Abstract: A display panel includes a first display substrate including first to third pixel areas and a light blocking area that is adjacent to the first to third pixel areas and a second display substrate including first to third display elements respectively overlapping the first to third pixel areas. The first display substrate includes a base substrate, a first color filter overlapping the first pixel area and having a first color, a second color filter overlapping the second pixel area and having a second color different from the first color, a third color filter disposed on the base substrate, having a third color different from the first and second colors, and including a filter portion overlapping the third pixel area and a light blocking portion overlapping the light blocking area, and a light blocking member disposed on the light blocking portion and containing a black organic pigment.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 2, 2021
    Inventors: Sun-kyu Joo, Keunchan Oh, Byungchul Kim, Inok Kim, Gakseok Lee, Jaemin Seong, Inseok Song, Jieun Jang