Patents by Inventor Won Tae Kim

Won Tae Kim 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: 20220392397
    Abstract: A display device includes a display including scan lines, data lines, light emission control lines, and pixels connected thereto, a scan driver configured to sequentially provide scan signals to the scan lines, a data driver configured to provide data signals to the data lines, a light emitting driver configured to provide light emission control signals to the light emission control lines based on a light emission clock signal having pulses, and a timing controller configured to provide the light emission clock signal to the light emitting driver, to output the pulses of the light emission clock signal during a frame in a first mode, to mask at least one pulse of the pulses during a first period of the frame in a second mode, and to output at least another pulse of the pulses during a second period after the first period.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Hae Kwan SEO, Won Tae KIM
  • Patent number: 11521558
    Abstract: The present disclosure relates to a display device. The display device includes a display panel, data lines, a constant voltage line, a feedback line, and a display driver. The display panel includes pixels. The data lines transfer data voltages to the pixels. The constant voltage line transfers a constant voltage to the pixels. The feedback line is coupled to the constant voltage line. The display driver is configured to sense a change amount of the constant voltage through the feedback line, generate compensated image data by compensating image data according to the sensed change amount of the constant voltage, and provide the data voltages corresponding to the compensated image data to the pixels.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, Sun-Koo Kang
  • Patent number: 11514864
    Abstract: A display device includes a display panel including a plurality of pixels connected to data lines and sensing lines, a data driver including a plurality of buffer amplifiers which supplies a first sensing voltage to the data lines during a first sensing period and a sensor which receives a first sensing signal from the pixels through the sensing lines during the first sensing period, and a global amplifier which supplies a second sensing voltage to the data lines during a second sensing period different from the first sensing period. The sensor receives a second sensing signal corresponding to the second sensing voltage from the pixels through the sensing lines during the second sensing period, and generates compensation data based on a difference value between the first sensing signal and the second sensing signal.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, Myeong Su Kim, Bo Yeon Kim, Jae Han Lee, Whee Won Lee
  • Publication number: 20220367594
    Abstract: A display device includes: a display panel having: a display area including a plurality of pixels; and a non-display area around the display area and including a pad area; and a chip on film attached to the pad area of the display panel, wherein the chip on film includes the base film, and a data driver on the base film, wherein the chip on film includes a first lead area overlapping the pad area and defining one end of the chip on film, wherein the first lead area includes a first-first bypass lead area, a first-second bypass lead area, a first-third bypass lead area, and a first data lead area, wherein the first data lead area is respectively between the first-first bypass lead area and the first-third bypass lead area, and between the first-second bypass lead area and the first-third bypass lead area.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 17, 2022
    Inventors: Won Tae KIM, Jae Han LEE
  • Patent number: 11496941
    Abstract: A network control method for handover in a mobile time-sensitive network (TSN) communication system is provided. The network control method includes: communicating of a user terminal within a wireless communication range of a first AP with an end system through the first AP; determining whether to handover to a second AP by determining communication strength between the user terminal and the first AP; requesting handover to a controller when the handover to the second AP is determined; reconfiguring a TSN communication operation after the handover, determining handover timing, and generating a handover command by a controller; transmitting the handover command to the first AP, the user terminal, and the second AP; and applying the reconfigured TSN communication operation to the second AP and the user terminal at the handover timing.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: November 8, 2022
    Assignee: KOREA UNIVERSITY OF TECHNOLOGY AND EDUCATION INDUSTRY—UNIVERSITY COOPERATION FOUNDATION
    Inventors: Won Tae Kim, Han Jin Kim, Young Jin Kim, Jun Hyung Kwon
  • Publication number: 20220343810
    Abstract: A display device and a tiled display are provided. The display device includes: a substrate having a display area and a non-display area which are defined thereon; a circuit element layer disposed on the substrate and including a conductive layer; an electrode layer disposed on the circuit element layer and including first and second electrodes spaced apart from each other; a light-emitting element disposed between the first electrode and the second electrode; and a dummy pattern disposed in a heat dissipation dummy area located at an edge of the display area. The dummy pattern includes a first layer and a second layer, the first layer is made of or includes a same material as the conductive layer of the circuit element layer, and the second layer is disposed above the first layer and in contact with at least a part of the first layer.
    Type: Application
    Filed: December 1, 2021
    Publication date: October 27, 2022
    Inventors: Hoon KIM, Won Tae KIM, Yong Sik HWANG
  • Patent number: 11475861
    Abstract: A display device includes a timing controller, a scan driver, a data driver, and a display unit. The timing controller generates a clock signal, a start signal, and image data. The scan driver includes a plurality of stages for sequentially outputting the clock signal as a scan signal in response to the start signal. The data driver generates a data signal using the image data. The display unit includes pixels for emitting light with a luminance corresponding to the data signal in response to the scan signal. The timing controller performs masking on the clock signal in a part of a first frame period during which the scan driver sequentially outputs the scan signal.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, Hae Kwan Seo
  • Publication number: 20220310996
    Abstract: The present invention relates to a positive electrode active material having improved capacity characteristic and life cycle characteristic, and a method of preparing the same, and specifically, to a positive electrode active material for a lithium secondary battery, wherein the positive electrode active material comprises a compound represented by Formula 1 above and allowing reversible intercalation/deintercalation of lithium, and from a crystal structure analysis of the positive electrode active material by a Rietveld method in which space group R-3m is used in a crystal structure model on the basis of an X-ray diffraction analysis, the thickness of MO slab is 2.1275 ? or less, the thickness of inter slab is 2.59 ? or greater, and the cation mixing ratio between Li and Ni is 0.5% or less, and a method of preparing the same.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jong Pil Kim, Seung Beom Cho, Won Tae Kim, San Su Son, Hyuck Lee
  • Patent number: 11425819
    Abstract: A display device includes a folding area, a first unfolding area located on a side of the folding area, and a second unfolding area located on a second side of the folding area. The display device further includes a display module which includes a display panel, and a first circuit board which is attached to the display panel and disposed under the display module, wherein the first circuit board includes a base film, a first driving integrated circuit (“IC”) disposed in the first unfolding area, and a second driving IC disposed in the second unfolding area where the first driving IC and the second driving IC do not overlap each other in a thickness direction during folding.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, Ji Hye Kim, Jae Hyeon Jeon
  • Publication number: 20220258752
    Abstract: Disclosed is a self-evolution method of an autonomous CPS performance of an autonomous CPS self-evolution framework based on federated reinforcement learning.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 18, 2022
    Applicant: Korea University Of Technology And Education Industry-University Cooperation Foundation
    Inventors: Won-Tae KIM, Deun-Sol CHO, Seongjin YUN, Hanjin KIM, Young-Jin KIM
  • Patent number: 11417265
    Abstract: A display device includes a display including scan lines, data lines, light emission control lines, and pixels connected thereto, a scan driver configured to sequentially provide scan signals to the scan lines, a data driver configured to provide data signals to the data lines, a light emitting driver configured to provide light emission control signals to the light emission control lines based on a light emission clock signal having pulses, and a timing controller configured to provide the light emission clock signal to the light emitting driver, to output the pulses of the light emission clock signal during a frame in a first mode, to mask at least one pulse of the pulses during a first period of the frame in a second mode, and to output at least another pulse of the pulses during a second period after the first period.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 16, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae Kwan Seo, Won Tae Kim
  • Patent number: 11386853
    Abstract: A display device includes: a display panel including a plurality of pixels; a source driver for outputting a target initialization voltage in an analog format to the pixels through sensing lines; and a timing controller for providing the source driver with a data control signal including packet information associated with the target initialization voltage. The packet information is in a digital format. The source driver includes a digital-analog converter which generates the target initialization voltage in the analog format, based on the packet information.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Whee Won Lee, Myeong Su Kim, Bo Yeon Kim, Won Tae Kim, Jae Han Lee
  • Publication number: 20220217606
    Abstract: A network control method for handover in a mobile time-sensitive network (TSN) communication system is provided. The network control method includes: communicating of a user terminal within a wireless communication range of a first AP with an end system through the first AP; determining whether to handover to a second AP by determining communication strength between the user terminal and the first AP; requesting handover to a controller when the handover to the second AP is determined; reconfiguring a TSN communication operation after the handover, determining handover timing, and generating a handover command by a controller; transmitting the handover command to the first AP, the user terminal, and the second AP; and applying the reconfigured TSN communication operation to the second AP and the user terminal at the handover timing.
    Type: Application
    Filed: February 9, 2021
    Publication date: July 7, 2022
    Applicant: KOREA UNIVERSITY OF TECHNOLOGY AND EDUCATION INDUSTRY--UNIVERSITY COOPERATION FOUNDATION
    Inventors: Won Tae KIM, Han Jin KIM, Young Jin KIM, Jun Hyung KWON
  • Publication number: 20220209232
    Abstract: The present invention relates to a method of preparing a positive electrode active material precursor for a lithium secondary battery in which particle size uniformity and productivity may be improved by using three reactors, a method of preparing a positive electrode active material for a lithium secondary battery by using the above-prepared positive electrode active material precursor for a lithium secondary battery, and a positive electrode for a lithium secondary battery and a lithium secondary battery which include the above-prepared positive electrode active material for a lithium secondary battery.
    Type: Application
    Filed: September 29, 2020
    Publication date: June 30, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ho Suk Shin, Won Tae Kim, Jong Yeol Yu, Young Geun Lim, Sun Sik Shin, Seoung Chul Ha
  • Patent number: 11362332
    Abstract: A method of preparing a positive electrode active material includes mixing a lithium raw material and a nickel-containing transition metal hydroxide precursor containing nickel in an amount of 65 mol % or more based on a total number of moles of transition metals and performing a first heat treatment to prepare a nickel-containing lithium transition metal oxide. The method also includes mixing a boron and carbon-containing raw material and a cobalt-containing raw material with the nickel-containing lithium transition metal oxide to form a mixture, and performing a second heat treatment on the mixture to form a coating material including B and Co on a surface of the lithium transition metal oxide. A positive electrode active material prepared by the preparation method is formed, and a positive electrode for a lithium secondary battery and a lithium secondary battery which include the positive electrode active material.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 14, 2022
    Inventors: Won Tae Kim, Sun Sik Shin, Yeo June Yoon, Hong Kyu Park, Seong Hoon Kang, Jong Yeol Yu
  • Patent number: 11355053
    Abstract: A source driver includes a plurality of output buffers configured to output data signals respectively corresponding to a plurality of data lines, and an output controller configured to control a timing at which each of the data signals corresponding to second image data is transferred from the output buffers to the data lines based on a difference between first image data and the second image data.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 7, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Tae Kim, Ji Hye Kim, Jae Hyeon Jeon
  • Publication number: 20220139305
    Abstract: A display device includes a timing controller configured to generate clock signals, a start signal, and image data. A scan driver includes a plurality of stages configured to sequentially output the clock signals as scan signals in response to the start signal. A data driver configured to generate a data signal based on the image data. A display unit includes pixels configured to emit light with luminance corresponding to the data signal in response to the scan signal. The timing controller is to mask at least one of the clock signals in a first section, a second section, and a third section included in one frame section and spaced from each other.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Inventors: Chang Noh YOON, Hae Kwan SEO, Won Tae KIM
  • Publication number: 20220122729
    Abstract: A cerebrovascular disease learning apparatus may be provided. The cerebrovascular disease learning apparatus may include a maximum intensity projection magnetic resonance angiography (MIP MRA) configuration unit configured to receive 3D time-of-flight magnetic resonance angiography (3D TOF MRA) and to construct MIP MRA including a plurality of image frames, a space characteristic learning unit configured to construct a space characteristic learning model, a frame characteristic learning unit configured to receive the space characteristics and to construct a frame characteristic learning model based on a recurrent neural network (RNN) learning method, and a lesion characteristic learning unit configured to receive the frame characteristics and to construct a lesion characteristic learning model based on the CNN learning method.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 21, 2022
    Inventors: Won Tae KIM, Shin Uk KANG, Myung Jae LEE, Dong Min KIM, Jin Seong JANG
  • Publication number: 20220114723
    Abstract: An apparatus for providing brain lesion information based on an image includes a magnetic resonance angiography (MRA) provider configured to provide an environment capable of displaying 3D time-of-flight magnetic resonance angiography (3D TOF MRA) using user input, a brain lesion input unit configured to generate and manage a brain lesion image, a maximum intensity projection (MIP) converter configured to configure MIP image data including at least one image frame corresponding to a projection position of the brain lesion image, a noise remover configured to remove noise of brain lesion information and to configure corrected MIP image data, from which the noise is removed, and an MRA reconfiguration unit configured to reconfigure a corrected brain lesion image by back-projecting the corrected MIP image data.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 14, 2022
    Inventors: Won Tae KIM, Shin Uk KANG, Myung Jae LEE, Dong Min KIM, Jin Seong JANG
  • Publication number: 20220106199
    Abstract: A method for preparing a positive electrode active material is provided. The method includes a first step for adding, to a reactor, a reaction solution including a transition metal-containing solution containing at least one among nickel, cobalt, and manganese, an ammonium ion-containing solution, and a basic aqueous solution to form seeds of precursor particles; a second step for preparing carbon-introduced precursor particles by adding a carbon source to the reactor when the precursor particles grow until the average particle diameter (D50) is 30% in size of the average particle diameter (D50) of the finally prepared precursor particles; and a third step for mixing the carbon-introduced precursor particles and a lithium raw material and sintering the mixture at a temperature of 750° C. to 950° C. to prepare positive electrode active material particles.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 7, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ho Suk Shin, Won Tae Kim, Jong Yeol Yu, Young Geun Lim, Sun Sik Shin, Seoung Chul Ha