Patents by Inventor Tae Choi

Tae Choi 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: 20230335058
    Abstract: A pixel of a display device may pre-charge a light emitting element in non-emission periods immediately before emission periods by varying a voltage level of an initialization voltage. As a result, a luminance non-uniformity phenomenon that may occur as the result of a deterioration deviation of the light emitting element may be removed or reduced.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 19, 2023
    Inventors: Dae Youn CHO, Jong Woo PARK, Jun Seok OH, Yoon Suk CHOI, Young Tae CHOI
  • Publication number: 20230298472
    Abstract: A method of displaying a corridor for an unmanned vehicle using a point cloud. The method includes: displaying the space vector points in a preset 3-dimensional space; and generating and displaying individual corridors, each individual corridor connecting between selected space vector points from among the space vector points. Each of the space vector points includes location information and size information, the individual corridor is displayed by a stereoscopic structure including an internal space in which the unmanned vehicle can fly, and the form of the individual corridor is determined based on the size information of a pair of adjacent space vector points.
    Type: Application
    Filed: August 22, 2022
    Publication date: September 21, 2023
    Inventors: Tae In CHOI, Seong Won JO
  • Publication number: 20230282116
    Abstract: Proposed is a 4-dimensional path display method for an unmanned vehicle using a point cloud that makes it easy to control the unmanned vehicle and provides a minute and safe path in response to collision accidents during flight of unmanned vehicles by using the point cloud in the 3-dimensional airspace space to define and display the corridor that constitutes the flight path of the unmanned vehicle in detail and easily. The 4-dimensional path display method for an unmanned vehicle using a point cloud according to an embodiment of the present invention includes the steps of defining a 3-dimensional airspace space for generating a flight path of the unmanned vehicle, and generating and displaying the flight path of the unmanned vehicle using the point cloud in the 3-dimensional airspace space.
    Type: Application
    Filed: June 1, 2021
    Publication date: September 7, 2023
    Inventors: Tae In CHOI, Seong Won JO
  • Publication number: 20230276706
    Abstract: Disclosed herein are pyrene heterocyclic compounds useful for an organic light-emitting diode and an organic light-emitting diode including same. More specifically, compound represented by [Chemical Formula A] or [Chemical Formula B] and an organic light-emitting diode are provided. [Chemical Formula A] and [Chemical Formula B] are as defined in the Description.
    Type: Application
    Filed: July 20, 2021
    Publication date: August 31, 2023
    Inventors: Soon-wook CHA, Sung-woo KIM, Ji-won LEE, Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20230257189
    Abstract: The present disclosure relates to an apparatus for accommodating copper foil. The apparatus includes an accommodation body having an accommodation space which accommodates copper foil wound on a core, a support portion coupled to the accommodation body and configured to support both ends of the core, and an elastic member disposed between the support portion and the core and configured to support the core. Here, the elastic member includes a body portion, a plurality of first protrusions arranged on a top surface of the body portion and extending in a longitudinal direction of the core, and a plurality of second protrusions arranged on a bottom surface of the body portion and extending in a direction perpendicular to the extending direction of the plurality of first protrusions. Accordingly, vibrations may be buffered in a frequency band of vibrations occurring in a transportation process.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 17, 2023
    Inventors: In Soo JUNG, Yeon Tae CHOI, Seung Min KIM, Young Gyu YANG
  • Publication number: 20230261007
    Abstract: The present disclosure relates to a display device, and the display device according to an embodiment includes: a substrate including a display area and a peripheral area; a plurality of light-emitting elements positioned in a display area; a plurality of pixel circuits connected to a plurality of light-emitting elements, respectively; a sensor positioned on the peripheral area of the substrate; a leakage current detecting circuit connected to the sensor; and a light emitting wiring connected to the leakage current detecting circuit and connected to at least one of the plurality of light-emitting elements, wherein the sensor includes a first sensor and the first sensor includes a first sensing transistor, and a first conductive pattern spaced apart from the channel of the first sensing transistor, and the first conductive pattern is positioned in the same layer as at least one of a plurality of layers configuring the transistor.
    Type: Application
    Filed: September 22, 2022
    Publication date: August 17, 2023
    Inventors: Yoon Ho KIM, Jong Woo PARK, JUNE HWAN KIM, Ki Ju IM, Young Tae CHOI, HYUNCHEOL HWANG
  • Publication number: 20230200099
    Abstract: Disclosed herein is an organic light-emitting diode comprising at least one of the compounds represented by [Chemical Formula A] and at least one of the compound represented by [Chemical Formula B] as host materials therein, wherein [Chemical Formula A] and [Chemical Formula B] are as defined in the description.
    Type: Application
    Filed: March 18, 2021
    Publication date: June 22, 2023
    Inventors: Se-Jin LEE, Yeong-Tae CHOI, Ji-Yung KIM, Kyungtae KIM, Myeong-Jun KIM, Kyeong-Hyeon KIM
  • Publication number: 20230183200
    Abstract: The present invention relates to: an anthracene derivative compound having a specific structure; and an organic light-emitting device having low-voltage driving characteristics, comprising same, and also relates to an organic light-emitting device, which employs, as a dopant compound, a polycyclic aromatic derivative compound having a specific structure together in a light-emitting layer, and thus has excellent light-emitting characteristics such as further improved low-voltage driving.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 15, 2023
    Applicant: SFC CO., LTD
    Inventors: Ji-yung KIM, Se-jin LEE, Yeong-tae CHOI, Kyung-tae KIM, Myeong-jun KIM, Kyeong-hyeon KIM
  • Publication number: 20230159566
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by any one of [Chemical Formula A] to [Chemical Formula E], wherein [Chemical Formula A] to [Chemical Formula E] is as defined in the description.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 25, 2023
    Inventors: Myeong-Jun KIM, Se-Jin LEE, Yeong-Tae CHOI, Ji-Yung KIM, Kyungtae KIM, Kyeong-Hyeon KIM
  • Patent number: 11620881
    Abstract: Provided are a haptic feedback fiber body, a haptic feedback fabric, and a wearable device. The haptic feedback fiber body can include a core fiber having a first electrode to surround the outer surface thereof, and a vibrating fiber, provided so as to intermittently contact the outer surface of the core fiber, including a second electrode on the inner surface thereof, wherein a piezoelectric polymer is provided on the outer surface of the first electrode or on the inner surface of the second electrode to generate fretting vibrations when the polymer is in close contact with the first electrode or the second electrode on which the piezoelectric polymer is disposed opposite to each other.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 4, 2023
    Assignee: CHUNGANG UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventor: Seung Tae Choi
  • Patent number: 11605355
    Abstract: An organic light emitting display device includes scan lines arranged in horizontal lines, data lines intersecting the scan lines, a pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels, a panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements, and a first line coupled to the first switching elements and a second line coupled to the second switching elements. Data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements, and data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Youn Cho, Sang Kil Kim, Hyo Jung Kim, Jong Woo Park, Dong Gi Ahn, Jong Won Lee, Ju Hee Lee, Young Tae Choi
  • Publication number: 20230039080
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A], wherein [Chemical Formula A] is as defined in the description.
    Type: Application
    Filed: February 4, 2021
    Publication date: February 9, 2023
    Inventors: Se-Jin LEE, Yeong-Tae CHOI, Ji-Young KIM, Kyungtae KIM, Myeong-Jun KIM, Kyeong-Hyeon KIM
  • Patent number: 11528805
    Abstract: A display device includes a substrate including a display area and a non-display area adjacent to the display area, lower pads disposed in the non-display area of the substrate and spaced apart from each other, upper pads disposed on the lower pads and spaced apart from each other, an anisotropic conductive film disposed between the lower pads and the upper pads, and a circuit film disposed on the upper pads, the circuit film including first lower holes disposed between the upper pads in a plan view, and first upper holes connected to the first lower holes and having radiuses larger than radiuses of the first lower holes. The first upper holes form first openings on an upper surface of the circuit film. A method of manufacturing the display device is provided.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Woo Byun, Jong Woo Park, Shangu Kim, Young Tae Choi
  • Publication number: 20220356747
    Abstract: An apparatus of controlling a safety power window of a vehicle and a method thereof to not injure the body caught in a window frame, as well as to prevent a malfunction of the safety power window, by adaptively setting an operation reference value of the safety power window, may include a learning device that deep-learns a model which predicts an operation reference value of the safety power window provided in the vehicle, based on driving information of the vehicle, a sensor that collects the driving information of the vehicle, and a controller that obtains the operation reference value of the safety power window corresponding to current driving information of the vehicle by use of the model on which the deep learning is completed, and controls the safety power window according to the operation reference value of the safety power window.
    Type: Application
    Filed: October 12, 2021
    Publication date: November 10, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventor: Sung Tae CHOI
  • Publication number: 20220349509
    Abstract: A fluid silencer includes: an expansion pipe disposed on a pipe through which a fluid containing noise sources flows and having an accommodation space therein; a viscous fluid received in the accommodation space; a noise introducing member disposed between the pipe and the expansion pipe to seal the accommodation space and allowing the noise sources to be introduced into the accommodation space therethrough; at least one partition member disposed in the accommodation space and dividing the accommodation space in a flow direction of the fluid; multiple baffle members disposed on one surface of the partition member and forming multiple sound absorbing spaces into which the noise sources introduced into the accommodation space are dispersedly introduced; and an elastic member disposed between the partition member and the baffle members and contracted/expanded by the viscous fluid entering/leaving the sound absorbing spaces as the noise sources are introduced into the sound absorbing spaces.
    Type: Application
    Filed: June 9, 2020
    Publication date: November 3, 2022
    Applicant: CENTER FOR ADVANCED META-MATERIALS
    Inventors: Jong Jin PARK, Jun Hyuk KWAK, Hak Joo LEE, Tae In CHOI, Min Seok JUNG
  • Patent number: 11475835
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jung Kim, Tae Young Kim, Yong Sung Park, Jong Woo Park, Mi Seon Seo, Keun Soo Lee, Ki Ju Im, Dae Youn Cho, Young Tae Choi, Hyun Cheol Hwang
  • Patent number: 11448550
    Abstract: An optical measurement device includes an optical sensor which measures an optical waveform of a reference object or a measurement object, a learner which receives a first optical waveform of the reference object from the optical sensor and learns frequency characteristics of the first optical waveform, a filter generator which analyzes the frequency characteristics of the first optical waveform and generates a frequency filter, a frequency modeling unit which receives a second optical waveform of the measurement object from the optical sensor and models frequency characteristics of the second optical waveform, and an optical characteristic detector which calculates an optical characteristic index of the second optical waveform based on an output value of the frequency modeling unit and the frequency filter.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: September 20, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Youn Cho, Eu Gene Kim, Ji Ho Moon, Jong Woo Park, Young Tae Choi
  • Publication number: 20220255021
    Abstract: Disclosed herein is an organic light emitting diode including a novel anthracene compound. More particularly, an organic light emitting diode including an anthracene compound represented by Chemical Formula A; and a compound represented by Chemical Formula B-1 or B-2 is provided. Chemical Formulas A, B-1, and B-2 are as defined in the description.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 11, 2022
    Inventors: Se-Jin Lee, Si-In KIM, Seok-Bae Park, Hee-Dae Kim, Yeong-Tae Choi, Seung-Soo Lee, Ji-Yung Kim, Kyeong-Hyeon Kim, Kyungtae Kim, Myeong-Jun Kim, Tae Gyun Lee, Joon-Ho Kim
  • Patent number: 11404519
    Abstract: An organic light emitting display device may include a first active pattern disposed on a substrate and including a first region, a second region, and a third region; a first gate electrode disposed on the first active pattern and forming a first transistor together with the first region and the second region; a second gate electrode disposed on the first active pattern and forming a second transistor together with the second region and the third region; a third gate electrode disposed on the first gate electrode, overlapping the second region, and forming a storage capacitor together with the first gate electrode; a metal pattern disposed between the first active pattern and the third gate electrode and overlapping the second region; and an organic light emitting diode electrically connected to the first transistor, the second transistor, and the storage capacitor.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Ho Moon, Jong Woo Park, Dae Youn Cho, Young Tae Choi
  • Publication number: 20220181559
    Abstract: Disclosed are an anthracene derivative with a specific structure and an organic electroluminescent device including the anthracene derivative. The organic electroluminescent device includes a light emitting layer employing the anthracene derivative as a host compound and a polycyclic aromatic derivative with a specific structure as a dopant compound. The use of the host and dopant compounds allows the organic electroluminescent device to have a long lifetime and significantly improved low-voltage characteristics.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: SFC CO., LTD
    Inventors: Se-jin LEE, Si-In KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM