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: 20230362281
    Abstract: Disclosed is an electronic device comprising a display, a processor operatively connected to the display, and a memory which is operatively connected to the display and the processor and stores a first application.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 9, 2023
    Inventors: Jongmyung LEE, Byungchul KIM, Donggyu PARK, Hyosang YOO, Gwanoh JUNG
  • Publication number: 20230343722
    Abstract: A display device includes: a display panel; a driving integrated circuit chip configured to drive the display panel; a first printed circuit board connected to the display panel; a second printed circuit board connected to the first printed circuit board; and a cover including a body portion covering the driving integrated circuit chip, the first printed circuit board, and the second printed circuit board, and a wing portion protruding from the body portion, wherein the wing portion extends from a front surface of the display panel to a rear surface of the display panel while surrounding a side surface of the display panel.
    Type: Application
    Filed: January 13, 2023
    Publication date: October 26, 2023
    Inventors: YOUNGJIN PARK, JOOYOUNG KIM, YOUNG-JOO NAM, Hyun Seop SONG, BYUNGCHUL SHIN
  • Patent number: 11791322
    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: February 22, 2022
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung Kwag, Byungchul Kim, Eunhye Kim, Sangmoo Park, Minsub Oh, Dongyeob Lee, Yoonsuk Lee
  • Publication number: 20230300981
    Abstract: A printed circuit board includes: a base member, a first line and a second line disposed on the base member, and a plurality of pad portions disposed on the base member. Each of the plurality of pad portions includes: a first input pad and a second input pad connected to the first line, respectively, and which receives an electrical signal or voltage. Each of the plurality of pad portions includes a first output pad and a second output pad connected to the second line, respectively, and which provide the electrical signal or the voltage to a display panel.
    Type: Application
    Filed: January 18, 2023
    Publication date: September 21, 2023
    Inventors: JOOYOUNG KIM, KIHAE SHIN, YOUNGJIN PARK, HYUNSEOP SONG, BYUNGCHUL SHIN
  • Publication number: 20230269979
    Abstract: A display apparatus includes: a substrate; a display layer located on a first surface of the substrate; a cover panel located on a second surface, opposite to the first surface, of the substrate; a printed circuit board located on the cover panel; a plurality of first terminals located on a first side of the printed circuit board; a plurality of second terminals spaced apart from the plurality of first terminals; a cover portion covering the printed circuit board; and a connection pattern located on a surface of the cover portion and arranged within a perimeter of the printed circuit board, wherein the surface of the cover portion faces the printed circuit board.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Inventors: Hyunseop SONG, Youngjoo Nam, Jooyoung Kim, Youngjin Park, Byungchul Shin
  • Patent number: 11734067
    Abstract: In a method of operating a multi-core system comprising a plurality of processor cores, a plurality of task stall information respectively corresponding to a plurality of tasks are provided by monitoring a task stall time with respect to each task. The task stall time indicates a time while the each task is suspended within a task active time, and the task active time indicates a time while a corresponding processor core is occupied by the each task. Task scheduling is performed based on the plurality of task stall information, and a fine-grained dynamic voltage and frequency scaling (DVFS) is performed based on the task scheduling. The plurality of tasks may be assigned to the plurality of processor cores based on load unbalancing, and the effects of the fine-grained DVFS may be increased to reduce the power consumption of the multi-core system.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: August 22, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Min Kim, Byungchul Jeon, Junho Huh
  • Patent number: 11729896
    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: Grant
    Filed: September 7, 2021
    Date of Patent: August 15, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jihoon Na, Mun Ja Kim, Jaewhan Sung, Byungchul Yoo, Jibeom Yoo, Hakseok Lee, Myeongjin Jeong, Hyunjune Cho
  • Patent number: 11715811
    Abstract: A light emitting diode (LED) transfer system includes an alignment apparatus configured to align a plurality of target substrates; a handling robot configured to transport the plurality of target substrates; a transfer stage configured to hold the plurality of target substrates and move the plurality of target substrates; a substrate stage configured to move a relay substrate having a plurality of LEDs with respect to the transfer stage while the plurality of LEDs are facing the transfer stage; a laser configured to emit a laser beam toward the plurality of LEDs of the relay substrate so that the plurality of LEDs are transferred from the relay substrate to the plurality of target substrates; and a processor configured to control the alignment apparatus, the handling robot, the transfer stage, the substrate stage, and the laser to transfer the plurality of LEDs of the relay substrate to the plurality of target substrates.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 1, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung Kwag, Byungchul Kim, Sangmoo Park, Minsub Oh, Wonsik Choi
  • Patent number: 11710431
    Abstract: A method of manufacturing a display apparatus includes performing a first repair process of detecting a first defective light emitting diode (LED) from among a plurality of LEDs provided on a sapphire substrate and removing the first defective LED; attaching the plurality of LEDs to electrode patterns of an interposer substrate and separating the sapphire substrate from the plurality of LEDs; and performing a second repair process of detecting a second defective LED among the plurality of LEDs attached to the electrode patterns and replacing the second defective LED.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungchul Kim, Doyoung Kwag, Sangmoo Park, Minsub Oh
  • Publication number: 20230215930
    Abstract: A semiconductor device includes a substrate that includes an active pattern, a channel pattern and a source/drain pattern on the active pattern, a gate electrode on the channel pattern, an active contact electrically connected to the source/drain pattern, and a gate contact electrically connected to the gate electrode. The active contact includes a first barrier pattern, a first seed pattern on the first barrier pattern, a first fill pattern on the first seed pattern, and a first metal-containing pattern between the first seed pattern and the first fill pattern. The first metal-containing pattern includes tungsten nitride. A nitrogen concentration of the first metal-containing pattern decreases in a direction toward the substrate.
    Type: Application
    Filed: September 1, 2022
    Publication date: July 6, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: WONKEUN CHUNG, Byungchul Kang, Hongkeun Park, Hoonjoo Na, Chunghwan Shin
  • Patent number: 11695092
    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: February 17, 2022
    Date of Patent: July 4, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsuk Lee, Sangmoo Park, Doyoung Kwag, Byungchul Kim, Eunhye Kim, Minsub Oh, Dongyeob Lee
  • Publication number: 20230209962
    Abstract: A display apparatus including a first pixel, a second pixel, and a third pixel includes: a first color conversion layer located disposed on a substrate to correspond to an emission area of the first pixel and including first quantum dots; a second color conversion layer located to corresponding to an emission area of the second pixel and including second quantum dots; and a partition wall disposed between the first color conversion layer and the second color conversion layer and including partition wall-scattering particles and a first pigment.
    Type: Application
    Filed: September 11, 2020
    Publication date: June 29, 2023
    Inventors: Jaemin Seong, Sunkyu Joo, Keunchan Oh, Inok Kim, Yousik Shin, Byungchul Kim, Jaecheol Park, Gakseok Lee
  • Publication number: 20230198167
    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to embodiments of the disclosure, an antenna module in a wireless communication system may include: a plurality of antenna elements; a first antenna substrate; a second antenna substrate; and a Printed Circuit Board (PCB). A first side of the first antenna substrate may be coupled to each of the plurality of antenna elements, and a second side of the first antenna substrate opposite to the first side of the first antenna substrate may be coupled to the PCB. A first side of the second antenna substrate may be coupled to each of the plurality of antenna elements, and a second side of the second antenna substrate opposite to the first side of the second antenna substrate may be coupled to the PCB.
    Type: Application
    Filed: February 14, 2023
    Publication date: June 22, 2023
    Inventors: Youngsub KIM, Junsig KUM, Seungtae KO, Byungchul KIM, Yoongeon KIM, Seungho CHOI, Jungmin PARK, Youngju LEE
  • Publication number: 20230195636
    Abstract: In some embodiments, a multi-port queueing cache includes a plurality of first ports, a plurality of second ports, a plurality of request handlers respectively coupled to the plurality of first ports, a cache storage unit coupled to the plurality of second ports, a reserve interface configured to exchange at least one address and at least one reserved cache line number, and a request interface configured to exchange the at least one reserved cache line number and at least one data. The reserve interface and the request interface are disposed between the plurality of request handlers and the cache storage unit. The cache storage unit includes a plurality of cache lines configured to store the plurality of data. The cache storage unit is configured to output a portion of the plurality of addresses, and receive a portion of the plurality of data corresponding to the portion of the plurality of addresses.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 22, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heonsoo LEE, Byungchul HONG, Junseok PARK, Jaehun CHUNG
  • Publication number: 20230193126
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Applicants: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul HONG, Naoki SAKO, Naoto KIJIMA, Masahiko YOSHINO, Takashi HASE, Fumiko YOYASU, Kentarou HORIBE
  • Patent number: 11680206
    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: Grant
    Filed: February 22, 2022
    Date of Patent: June 20, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Byungchul Hong
  • Publication number: 20230160968
    Abstract: An apparatus for measuring the internal resistance of battery cells in a variable number unit in an online state is proposed. The apparatus may include a switch array, a variable resistor, a high-speed switch, a measurement sensor, and a controller. The switch array configures a measurement target battery cell by selecting at least one battery cell from among a plurality of battery cells included in a battery module. The variable resistor is connected to the measurement target battery cell via the switch array. The high-speed switch switches a connection between the measurement target battery cell and the variable resistor. The measurement sensor detects a measurement voltage of the measurement target battery cell and a measurement current of the measurement target battery cell in an online state of the battery module. The controller derives an internal resistance of the measurement target battery cell through the measurement voltage and the measurement current.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 25, 2023
    Inventors: Junghoon Ahn, Sunggeun Song, Byungchul Park, Kyoochang Jeong, Seongmun Oh
  • Patent number: 11658402
    Abstract: Disclosed is an electronic device having a space formed between front and rear surfaces thereof, the electronic device comprising: a first cover arranged on the front surface; a second cover arranged on the rear surface; a frame surrounding the first cover and the second cover; and a multilayered circuit board coupled to the second cover so as to constitute the housing of the electronic device, wherein the multilayered circuit board may comprises an insulated metal layer having a surface coupled to the second cover and a substrate-structured antenna device having a surface coupled to the insulated metal layer.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 23, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunjin Kim, Byungchul Kim, Jungmin Park, Kwanghyun Baek, Youngju Lee, Jungyub Lee, Sungchul Park
  • Publication number: 20230152988
    Abstract: A storage device and an operation method of a storage device is provided. An operation method of a storage device includes: detecting an abnormal operation of a host memory buffer (HMB) positioned outside a storage device during data processing; and when the abnormal operation is detected, updating, by the storage device, a security policy applied when writing data to or reading data from the HMB.
    Type: Application
    Filed: September 14, 2022
    Publication date: May 18, 2023
    Inventors: Ranhee LEE, Byungchul KO
  • Patent number: D999153
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: September 19, 2023
    Inventors: Inhee Park, Byungchul Lee