Patents by Inventor Dong-Hyeon Lee

Dong-Hyeon Lee 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: 12004420
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound, an organic electroluminescent device having a low driving voltage and/or a high luminous efficiency and/or a long lifespan can be provided.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: June 4, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Doo-Hyeon Moon, Su-Hyun Lee, Jin-Ri Hong, So-Young Jung, Dong-Hyung Lee, Sang-Hee Cho
  • Publication number: 20240174890
    Abstract: A CMP slurry composition for polishing tungsten and a method of polishing tungsten using the same, the composition includes a polar solvent or a nonpolar solvent; an abrasive agent; and a compound represented by Formula 3 or a complex thereof:
    Type: Application
    Filed: October 24, 2023
    Publication date: May 30, 2024
    Inventors: Keun Sam JANG, Won Jung KIM, Tae Won PARK, Ji Ho LEE, Eui Rang LEE, Jin Gyo KIM, Dong Hyeon LEE, Chang Suk LEE
  • Publication number: 20240179932
    Abstract: The present disclosure relates to an organic light emitting diode and an organic light emitting device including the same. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3. According to an aspect of the present disclosure, it is allowed to provide an OLED and an organic light emitting device having high emitting efficiency and/or improved lifespan.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 30, 2024
    Applicants: LG DISPLAY CO., LTD., LT Materials Co.,Ltd
    Inventors: Ji-Seon JANG, Chi-Ho LEE, Suk-Young BAE, Han-Jin AHN, Jun-Yun KIM, Dae-Hyuk CHOI, Dong-Jun KIM, Yong-Woo KIM, Yong-Geun JUNG, Jin-Hwan SHIN, Seok-Hyeon YU
  • Publication number: 20240169897
    Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.
    Type: Application
    Filed: January 31, 2024
    Publication date: May 23, 2024
    Inventors: Young Ha SOHN, Se Hyuk PARK, Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
  • Publication number: 20240163462
    Abstract: Provided is an apparatus for image encoding, the apparatus including: a transmitter memory configured to store a program for encoding a stereoscopic 3D image; and an encoding processor configured to execute the program stored in the transmitter memory, wherein the encoding processor is configured to: generate a first stream and a second stream from a left image and a down-converted right image, decode the first stream and the second stream to generate a decoded left image and a first decoded right image; generate a third stream from the decoded left image, the first decoded right image, and an original right image, and decode the third stream to generate a second decoded right image; and generate a fourth stream from the second decoded right image and the original right image.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 16, 2024
    Applicants: Electronics and Telecommunications Research Institute, KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Sung Hoon KIM, Seong Won JUNG, Dong Wook KANG, Kyeong Hoon JUNG, Seung Jun LEE, Ju Hyeon LEE
  • Publication number: 20240161588
    Abstract: An apparatus for providing haptic stimulation includes an ultrasonic actuator configured to provide haptic stimulation to a part of a body located at a target location by generating an ultrasonic signal, and forming sound pressure at the target location via the generated ultrasonic signal; an object sensor provided around the ultrasonic actuator and configured to detect an object within a region between the ultrasonic actuator and the target location; and a control module configured to stop operation of the ultrasonic actuator based on detecting the object within the region is sensed.
    Type: Application
    Filed: April 21, 2023
    Publication date: May 16, 2024
    Inventors: Jang Hyeon Lee, Il Seon Yoo, Dae Sung Kwon, Dong Gu Kim, Hyun Soo Kim
  • Patent number: 11982756
    Abstract: A method, implemented by a computer, for determining a position of a personal mobility device (PMD) comprises: estimating a position of a PMD based on a first wireless signal; determining whether the PMD is within an intermediate area between a first area and a second area, based on an estimated position of the PMD; determining whether the PMD moves to the second area, by using both the first wireless signal and a second wireless signal; and determining position of the PMD by using any one of the first wireless signal and the second wireless signal based on a movement of the PMD to the second area.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: May 14, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Gu Min Jeong, Hyun Jung Oh, Seung Hyeon Lee, Yo Cheol Jang, Choong Yub Lee, Jongmyung Park, Dong Hee Seok, Jae Jun Ha
  • Patent number: 11981236
    Abstract: A convertible seat for a vehicle includes a base frame having a predetermined dimension of storage space, a plurality of individual blocks disposed to be ascendable and descendable in the storage space of the base frame and configured to serve as a seatback and a seat cushion, and a raising and lowering drive device installed in each of the individual blocks and configured to raise or lower a corresponding one of the individual blocks so that a seat position can be changed into various forms.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: May 14, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jang Hyeon Lee, Dae Sung Kwon, Dong Gu Kim, Il Seon Yoo
  • Publication number: 20240145772
    Abstract: An embodiment composition for solid electrolyte membranes of all-solid-state batteries includes a sulfide-based solid electrolyte and a cross-linking agent including two or more acrylate functionalities. An embodiment method of manufacturing a solid electrolyte membrane for an all-solid-state battery includes forming a composition including a sulfide-based solid electrolyte and a cross-linking agent including two or more acrylate functionalities and cross-linking the composition.
    Type: Application
    Filed: September 14, 2023
    Publication date: May 2, 2024
    Inventors: So Yeon Kim, Yun Sung Kim, Ga Hyeon Im, Yoon Kwang Lee, Hong Seok Min, Kyu Joon Lee, Dong Won Kim, Young Jun Lee, Hui Tae Sim, Seung Bo Hong
  • Publication number: 20240128797
    Abstract: Disclosed are a primary coil unit having four coils independently controllable and a pickup coil unit having four coils also independently controllable. The proposed power transfer system and the proposed power pickup system can satisfy standard compatibility and improve the efficiency of wireless power transmission. The power transfer device is compatible with various types of conventional power pickup systems and capable of expanding compatibility with a new power pickup system to be developed in future by changing the power transfer magnetic flux pattern. The power pickup device is compatible with various types of conventional power transfer systems and capable of expanding compatibility with a power transfer system to be developed in future. The system including both the power transfer device and the power pickup device is more robust against a deviation.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Dong Ho CHO, Bo Yune SONG, Gu Ho JUNG, Chung Hee LEE, Ja Hyeon LEE, Uoo Yeol YOON
  • Patent number: 11961474
    Abstract: A display device is disclosed that includes a pixel. The pixel includes a first transistor connected between a second node and a third node and including a gate electrode connected to a first node. A first capacitor is formed between the first node and a fourth node. A second capacitor is formed between the fourth node and a first power line. A second transistor is connected between a data line and the fourth node. An eighth transistor is connected between the first power line and the second node. A ninth transistor is connected between the second node and a bias power line. A sixth transistor is connected between the third node and a fifth node. A light emitting element is electrically connected between the fifth node and a second power line. A gate electrode of the eighth transistor and a gate electrode of the sixth transistor are connected to different gate lines.
    Type: Grant
    Filed: January 2, 2023
    Date of Patent: April 16, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Wook Yang, Dong Gyu Lee, Jae Hyeon Jeon
  • Publication number: 20240120177
    Abstract: A substrate processing method is provided. The substrate processing method comprises loading a substrate onto a substrate support inside a chamber, forming a plasma inside the chamber, providing a first DC pulse signal to an electromagnet that generates a magnetic field inside the chamber and processing the substrate with the plasma, wherein the first DC pulse signal is repeated at a first period including a first section and a second section subsequent to the first section, the first DC pulse signal has a first level during the first section, and the first DC pulse signal has a second level different from the first level during the second section.
    Type: Application
    Filed: September 19, 2023
    Publication date: April 11, 2024
    Inventors: Ji Mo LEE, Dong Hyeon NA, Myeong Soo SHIN, Woong Jin CHEON, Kyung-Sun KIM, Jae Bin KIM, Tae-Hwa KIM, Seung Bo SHIM
  • Publication number: 20240118616
    Abstract: This invention relates to a positive photosensitive resin composition that includes a siloxane copolymer of two kinds of reactive silane compounds with specific structures wherein residual impurities such as unreacted monomers and catalysts are minimized, and a UV absorber including one or more kinds of phenol hydroxyl groups capable of crosslinking and an alkoxy group. Accordingly, the resin composition exhibits excellent performances such as sensitivity, resolution, and degree of planarization, and also has excellent weatherability and UV absorbance, thereby providing excellent panel reliability.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 11, 2024
    Inventors: Kyoungsoon SHIN, Hyoc-Min YOUN, Tai Hoon YEO, Dong Myung KIM, Gi Seon LEE, Ah Rum PARK, Seok Hyeon LEE
  • Patent number: 11953958
    Abstract: A display includes: a display panel; and a panel bottom sheet disposed below the display panel, the panel bottom sheet including: a first heat dissipation layer; a second heat dissipation layer over the first heat dissipation layer, including a first opening formed completely through the second heat dissipation layer in a thickness direction; a heat dissipation coupling interlayer between the first heat dissipation layer and the second heat dissipation layer, and a heat dissipation substrate on the second heat dissipation layer.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: April 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Woo Lee, Boo Kan Ki, June Hyoung Park, Sun Hee Oh, Dong Hyeon Lee, Jeong In Lee, Hyuk Hwan Kim, Seong Sik Choi
  • Publication number: 20240105104
    Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.
    Type: Application
    Filed: April 12, 2023
    Publication date: March 28, 2024
    Inventors: Se Hyuk PARK, Hong Soo KIM, Young Ha SOHN, Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
  • Publication number: 20240096265
    Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.
    Type: Application
    Filed: April 12, 2023
    Publication date: March 21, 2024
    Inventors: Young Ha SOHN, Se Hyuk PARK, Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
  • Patent number: 11922866
    Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Ha Sohn, Se Hyuk Park, Jin Wook Yang, Dong Gyu Lee, Jae Hyeon Jeon
  • Publication number: 20230326915
    Abstract: A display device includes a main region including an active region; a bending region extending from a side of the main region in a direction; a plurality of pixels disposed in the active region and emitting light; a plurality of light sensors disposed in the active region and sensing incident light; a protrusion pattern protruding from the side of the main region in the direction; and a light source part mounted on the protrusion pattern and emitting light.
    Type: Application
    Filed: December 12, 2022
    Publication date: October 12, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Young Min PARK, Dong Hyeon LEE
  • Publication number: 20230220241
    Abstract: A CMP slurry composition for polishing a tungsten pattern wafer and a method of polishing a tungsten pattern wafer, the CMP slurry composition includes a solvent; an abrasive agent containing silica modified with a silane compound having at least one nitrogen atom; and an alkylene oxide group-containing fluorine surfactant.
    Type: Application
    Filed: November 7, 2022
    Publication date: July 13, 2023
    Inventors: Tae Won PARK, Jin Gyo KIM, Ji Ho LEE, Eui Rang LEE, Dong Hyeon LEE
  • Publication number: 20230205273
    Abstract: A stretchable window includes: a first material extending in a first direction and a second material extending in a second direction that intersects the first direction. The first material and the second material are interwoven, the first material has a first modulus, and the second material has a second modulus. The first modulus has a value in a range of about 0.1 Mpa to about 500 Mpa and the second modulus has a value in a range of about 1 Gpa to about 50 Gpa.
    Type: Application
    Filed: August 3, 2022
    Publication date: June 29, 2023
    Inventors: Kang Woo LEE, Young Do KIM, Hyun Seok OH, Dong Hyeon LEE