Patents by Inventor Won-Ho Lee

Won-Ho 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).

  • Publication number: 20250078732
    Abstract: Provided herein may be a display device including a display panel including a sub-pixel, and a light sensor configured to generate a sensing signal corresponding to a quantity of received light, and including a first sensing transistor configured to generate the sensing signal, and including a back gate electrode configured to receive a sensing gate signal, a second sensing transistor configured to provide the sensing signal to a readout line in response to the sensing gate signal, and a light-receiving element connected to a control node of the first sensing transistor, and a display panel driver configured to drive the display panel.
    Type: Application
    Filed: May 17, 2024
    Publication date: March 6, 2025
    Inventors: Won Jun LEE, Chol Ho KIM
  • Patent number: 12243953
    Abstract: An apparatus for manufacturing a light emitting display device includes a stage, and at least one electric-field application module disposed on at least one side of the stage. The apparatus further includes at least one of: at least one printing head disposed above the stage, and a heating element disposed adjacent the stage. The at least one electric-field application module includes a probe head having at least one probe pin, and a driver connected to the probe head to move the probe head.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: March 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Hyuk Kang, Won Ho Lee, Hyun Deok Im, Young Hoi Kim, Jin Young Kim, Hyun Min Cho, Hae Yun Choi
  • Publication number: 20250070226
    Abstract: Disclosed are an ionic liquid, an electrolyte including the ionic liquid, and a lithium secondary battery including the same. The ionic liquid is capable of forming a film having high ionic conductivity on an anode upon reductive decomposition of cations contained therein, and delaying the decomposition of anions.
    Type: Application
    Filed: March 19, 2024
    Publication date: February 27, 2025
    Inventors: Kyu Ju Kwak, Ji Yong Lee, Won Keun Kim, Eun Ji Kwon, Yeon Jong Oh, Ji Ho Lim, Dong Hyun Lee, Sang Su Lee, Kyoung Han Ryu, Samuel Seo
  • Publication number: 20250070278
    Abstract: An energy storage system of disclosed technology include: a plurality of battery racks, each of the plurality of battery racks structured to support a plurality of battery cells; a management controller configured to be in communication with and to control the battery cells in the plurality of battery racks; and one or more connection lines configured to connect the management controller to the plurality of battery racks to form a network.
    Type: Application
    Filed: June 25, 2024
    Publication date: February 27, 2025
    Inventors: Jong Ho SEOK, Yong Uk KIM, Won Seok DO, Bon A GOO, Chan Ho PARK, Woo Jin LEE
  • Patent number: 12236853
    Abstract: A pixel includes a first transistor generating current from a first power source line to a second power source line through a light-emitting element, a second transistor between a third power source line and a gate electrode of the first transistor, a third transistor between a data line and a gate electrode of the second transistor and controlled by a first signal, a fourth transistor between a fourth power source line and a first node and controlled by a second signal, a first capacitor between the gate electrode of the first transistor and the first node, and a second capacitor between the gate electrode of the second transistor and a sweep voltage line providing a sweep voltage that linearly changes from a first voltage level to a second voltage level, and nonlinearly changes from the second voltage level to a third voltage level when the third transistor is on.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: February 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Jun Lee, Yong Bin Kim, Chol Ho Kim
  • Patent number: 12237364
    Abstract: A display device includes: a first sub-pixel having a first emission area and a first sub-area adjacent to each other in a first direction; and a bank extending around a portion of the first emission area and the first sub-area. The bank includes: a first wall extending around the first sub-area; and a second wall adjacent to the first emission area in a second direction crossing the first direction. The second wall and the first wall are spaced apart from each other in the first direction.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: February 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Deok Im, Buem Joon Kim, Won Ho Lee, Hae Yun Choi
  • Publication number: 20250061854
    Abstract: An embodiment provides a data driver for a display and a sensing circuit thereof, and the sensing circuit comprises: an analog front end circuit which generates an input voltage; a sample-and-hold circuit which stores a first sampling voltage according to the input voltage and generates a second sampling voltage obtained by converting the first sampling voltage; and an amplifier circuit which generates a sensing voltage according to the second sampling voltage.
    Type: Application
    Filed: November 18, 2022
    Publication date: February 20, 2025
    Applicant: LX SEMICON CO., LTD.
    Inventors: Young Ho SHIN, Won KIM, Seong Geon KIM, Taiming PIAO, Byeon Cheol LEE
  • Patent number: 12224306
    Abstract: A pixel includes a light emitting area including a central portion and an outer portion, a non-light emitting area surrounding the light emitting area, a first electrode and a second electrode that are spaced apart from each other in the light emitting area, and a first light emitting element disposed between the first electrode and the second electrode. The first electrode and the second electrode are spaced apart from each other at a first interval in the central portion, and are spaced apart from each other at a second interval in the outer portion. The second interval is larger than the first interval. An interval between the first electrode and the second electrode gradually increases from the central portion to the outer portion.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eun A Cho, Jong Hyuk Kang, Won Ho Lee
  • Patent number: 12222315
    Abstract: Provided is a sensing method of a FET-type sensor using electric charge storage engineering. The sensing method comprises the following steps to improve reactivity and selectivity to a gas to be sensed: (a) applying a preset erase voltage (Erase bias) or program voltage (Program bias) to the control gate according to the type of gas to be sensed to change a threshold voltage of the FET transducer and control the charge at an interface between the passivation layer and the sensing material layer; and (b) in the recovery phase where the gas detection reaction is terminated and the original state is returned, applying a pre-bias greater or less than a read voltage to the control gate according to the type of gas detected, and then applying the read voltage to the drain and the source of the FET transducer to increase the desorption rate of the detected gas.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: February 11, 2025
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jong-Ho Lee, Won-Jun Shin
  • Publication number: 20250048805
    Abstract: A light emitting element, a manufacturing method of the light emitting element, a display device including the light emitting element, and a manufacturing method of the display device are provided. The light emitting element includes end portions including a first end portion and a second end portion; a side portion between the first end portion and the second end portion; a semiconductor stacked member including a first semiconductor layer adjacent to the first end portion, a second semiconductor layer adjacent to the second end portion, and an active layer between the first semiconductor layer and the second semiconductor layer; a first surface member on the side portion and having a first surface energy; and a second surface member on the end portions and having a second surface energy less than the first surface energy.
    Type: Application
    Filed: March 7, 2024
    Publication date: February 6, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Won Ho LEE, Jong Hyuk KANG, Buem Joon KIM, Hyun Deok IM
  • Patent number: 12218177
    Abstract: A display device in accordance with some embodiments may include a base layer, a first bank pattern and a second bank pattern on the base layer, and spaced apart from each other in a first direction, a first electrode overlapping the first bank pattern, a second electrode overlapping the second bank pattern, and a light emitting element aligned between the first electrode and the second electrode, wherein a distance between an end of the first electrode and an end of the first bank pattern differs from a distance between an end of the second electrode and an end of the second bank pattern in the first direction.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: February 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Ho Lee, Jong Hyuk Kang, Buem Joon Kim, Hyun Deok Im, Eun A Cho
  • Publication number: 20250040404
    Abstract: A display device includes a bank including first and second bank layers each having side surfaces respectively defining bank openings corresponding to light emission areas, the second bank layer protruding further than the side surfaces of the first bank layer to define tips of the second bank layer and an upper surface at the tips, an inorganic encapsulation layer on the bank and including first and second patterns each having a body corresponding to the light emission areas and a wing portion extended from the body, the wing portions overlapping each other and spaced apart from the upper surface at the tips, the second pattern further including a connection portion which is connected to the body and the first wing portion of the second pattern and is between the first wing portion of the first pattern and the second bank layer.
    Type: Application
    Filed: February 13, 2024
    Publication date: January 30, 2025
    Inventors: Che Ho LEE, So Yeon JEONG, Won Je JO, Jae Hyun KIM, Kwan Hee LEE, Young Seo CHOI
  • Publication number: 20250040349
    Abstract: A thin film transistor (TFT) array substrate includes: a substrate; a first insulation layer on the substrate; a capacitor including a lower electrode on the first insulation layer, and an upper electrode arranged to overlap with the whole lower electrode and having an opening, and the upper electrode is insulated from the lower electrode by a second insulation layer; an inter-layer insulation film covering the capacitor; a node contact hole in the inter-layer insulation film and the second insulation layer, and within the opening; and a connection node on the inter-layer insulation film and electrically coupling the lower electrode and at least one TFT to each other through the node contact hole.
    Type: Application
    Filed: October 11, 2024
    Publication date: January 30, 2025
    Inventors: Won-Se Lee, Won-Kyu Kwak, Se-Ho Kim
  • Publication number: 20250040351
    Abstract: A display device includes a substrate including emission non-emission areas; an anode electrode on the emission area of the substrate; a pixel defining layer on the anode electrode and overlapping the non-emission area, with a first opening defined therethrough; a first bank structure on the pixel defining layer, and including at least two conductive materials, with a second opening defined therethrough; a second bank structure on the first bank structure and including at least two materials; and a first encapsulation layer on the second bank structure, where the first bank structure includes a first bank layer and a second bank layer including a first tip protruding toward a center of the first opening, the second bank structure includes a third bank layer and a fourth bank layer including a 10 second tip protruding toward a center of the second opening, and the first encapsulation layer covers the first and second tips.
    Type: Application
    Filed: March 22, 2024
    Publication date: January 30, 2025
    Inventors: Che Ho LEE, So Yeon JEONG, Won Je JO
  • Patent number: 12213358
    Abstract: An organic light emitting diode display includes a substrate, a scan line on the substrate for transferring a scan signal, a data line crossing the scan line and for transferring a data signal, a driving voltage line crossing the scan line and for transferring a driving voltage, a switching thin film transistor coupled to the scan line and the data line, a driving thin film transistor coupled to a switching drain electrode of the switching thin film transistor, and an organic light emitting diode (OLED) coupled to a driving drain electrode of the driving thin film transistor, wherein a driving semiconductor layer of the driving thin film transistor is bent and in a plane substantially parallel to the substrate.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: January 28, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Ho Kim, Jin-Woo Park, Won-Se Lee
  • Patent number: 12209805
    Abstract: The present invention relates to an electrode drying apparatus and an electrode drying method, and the electrode drying apparatus includes: an oven configured to provide a space in which the electrode is dried and to include a hot air nozzle or an infrared heater; a color coordinate measuring unit configured to be positioned at an outlet of the oven and measure a color coordinate value of an electrode active material layer with respect to the dried electrode; and a controller configured to analyze a drying result of the electrode from the color coordinate value, determine whether the electrode is defective in drying, and control a drying condition of the electrode.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: January 28, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Kyoung Ho Kim, Kyung Mee Lee, Hyun Jin Yang, Hyun Sup Lee, Won Chan Park, Myung Han Lee, Ji Eun Kim
  • Publication number: 20250026727
    Abstract: Provided are a novel compound which can improve the luminous efficiency, stability, and service life of an element; an organic electronic element using same, and an electronic device thereof.
    Type: Application
    Filed: December 8, 2022
    Publication date: January 23, 2025
    Applicant: DUK SAN NEOLUX CO., LTD.
    Inventors: Ki Ho SO, Jong Gwang PARK, Yun Suk LEE, Sun Hee LEE, Soung Yun MUN, In Goo LEE, Won Joan CHEONG
  • Patent number: 12201701
    Abstract: Proposed are a contrast agent containing an iodinated unsaturated fatty acid ethyl ester derived from vegetable oil, a non-iodinated unsaturated fatty acid ethyl ester, and sulfur dioxide (SO2), and a production method thereof. The contrast agent having a similar contrast effect is synthesized using vegetable oil as a substitute for poppy seed oil, which is unstable in terms of supply and is expensive. In addition, the long-term stability problem of an iodine-based contrast agent is solved by adding a non-iodinated unsaturated fatty acid ethyl ester and sulfur dioxide.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: January 21, 2025
    Assignee: ENGAIN CO., LTD.
    Inventors: Won Mok Lee, Kyoung Ho Kim, Young Gook Koh, Ha Been Park
  • Patent number: 12205503
    Abstract: Disclosed are a source driver and a method of detecting crack of a display panel. A source driver may comprise a first circuit configured to apply first data to data lines connected to sub-pixels of a display panel to charge a first driving voltage; and a second circuit formed on the display panel that applies the first driving voltage to a detection line formed on the display panel to detect the presence of cracks in the display panel based on the illumination status of the sub-pixels, wherein the detection line includes a first detection node and a second detection node formed on one side of the display panel along its extension direction, wherein the first detection node is connected to data lines of the first and third sub-pixels, and wherein the second detection node is connected to data line of the second sub-pixel.
    Type: Grant
    Filed: October 4, 2023
    Date of Patent: January 21, 2025
    Assignee: LX SEMICON CO., LTD.
    Inventors: Byeon Cheol Lee, Seong Geon Kim, Won Kim, Tai Ming Piao, Young Ho Shin
  • Publication number: 20250019020
    Abstract: A fixing device for a vehicle configured to connect the vehicle's cabin unit and loading unit of loading cargo at the rear of the cabin unit includes a coil transmitting an electromagnetic force to a drive pulley, an assembly module including a drive pulley and mechanically fixing the cabin unit and the loading unit together through a driving force of the drive pulley via the coil when the loading unit moves and aligns with the cabin unit, and a magnetic module enclosing the assembly module on an external side of the assembly module and magnetically fixing the cabin unit and the loading unit together by changing a magnetic circuit through a rotation force of a magnetic body while the cabin unit and the loading unit are mechanically connected to each other.
    Type: Application
    Filed: November 6, 2023
    Publication date: January 16, 2025
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Jae Seung LEE, Won Ki Song, Jin Ho Hwang, Joong Hyun Shin, Hyung Sik Choi