Patents by Inventor Seung Kyu Lee

Seung Kyu 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: 11645955
    Abstract: A display panel alignment device of a tiling display includes a frame including panel seating portions and a gap around the panel seating portions, and a panel movement controller disposed in each of the panel seating portions. A display panel is disposed in each of the panel seating portions. The panel movement controller controls a movement of the display panel in a front direction, a rear direction, a left direction, and a right direction, and controls rotation of the display panel.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Kyu Lee, Sang Seop Kum, Beom Jun Kim
  • Patent number: 11640788
    Abstract: A stage including: an output circuit connected to a first node and a second node; an input connected to a third node and a fourth node; and a plurality of signal processors between the output and the input, the plurality of signal processors electrically connecting the first node and the third node and electrically connecting the second node and the fourth node, wherein the input includes: a seventh transistor connected between a first input terminal and the fourth node and having a gate electrode connected to a second input terminal; a plurality of eighth transistors serially connected between the third node and the second input terminal and having gate electrodes connected to the fourth node; and a ninth transistor connected between the third node and a second power source and having a gate electrode connected to the second input terminal.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: May 2, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Kyu Lee, Seung Ji Cha, Ji Hyun Ka, Tae Hoon Kwon, Min Ku Lee, Jin Tae Jeong
  • Patent number: 11640793
    Abstract: A display device may include a display panel including a plurality of pixels, a data driver which applies data signals to the display panel, a scan driver including scan stages, which sequentially applies scan signals to the display panel, an emission driver including an emission stage which sequentially applies emission signals to the display panel, and a power supply voltage generator which generates a power supply voltage including high voltages and low voltages, and provides the high voltages having different voltage levels from each other or the low voltages having different voltage levels from each other to at least one selected from the scan stages and the emission stage. The power supply voltage generator generates a first high voltage, a first low voltage, a second high voltage lower than the first high voltage, and a second low voltage higher than the first low voltage based on an input voltage.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: May 2, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sungjin Kim, Jongwon Park, Myeonghee Seo, Huigyeong Yun, Seung-Kyu Lee, Younguk Hwang
  • Publication number: 20230119752
    Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 20, 2023
    Inventors: JIN TAE JEONG, MIN KU LEE, JI HYUN KA, TAE HOON KWON, SEUNG KYU LEE, SEUNG JI CHA
  • Patent number: 11631730
    Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between tine display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Hyun Ka, Seung-Kyu Lee, Hwan-Soo Jang, Jin-Tae Jeong
  • Publication number: 20230076579
    Abstract: A display device includes: a plurality of pixels to receive data voltages based on converted grayscales; and a grayscale converter to: calculate first compensation offsets based on positions of the pixels and input grayscales for the pixels; convert the first compensation offsets into second compensation offsets according to a maximum luminance weight based on an input maximum luminance; and calculate the converted grayscales by applying the second compensation offsets to the input grayscales.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 9, 2023
    Inventors: Si Beak PYO, Seung Kyu LEE, Young Uk HWANG
  • Publication number: 20230070620
    Abstract: A display device includes: a substrate including a display area having a plurality of pixels, a pad area having a plurality of pads, and a non-display area including a fan-out area between the display area and the pad area; at least one first fan-out line in the fan-out area; at least one second fan-out line in the fan-out area and electrically disconnected from the first fan-out line; first, second, and third insulating layers sequentially arranged on the substrate; and a first conductive layer between the substrate and the first insulating layer, a second conductive layer on the second insulating layer, and a third conductive layer on the third insulating layer, wherein each of the first and second fan-out lines has a multi-layered stacking structure in which a first sub-line, a second sub-line, and a third sub-line provided in different layers are stacked.
    Type: Application
    Filed: August 11, 2022
    Publication date: March 9, 2023
    Inventors: Seung Kyu LEE, Hoon KIM, Yong Sik HWANG
  • Publication number: 20230070352
    Abstract: A display apparatus includes a display panel including a plurality of pixels, a gate driver which applies a bias gate signal to the pixels, a data driver which applies a data voltage to the pixels, an emission driver which applies an emission signal to the pixels, and a driving controller which controls the gate driver, the data driver, and the emission driver. The driving controller calculates a grayscale change region of input image data and a grayscale change level of the grayscale change region, determines a compensation region of the input image data based on the grayscale change region, determines a compensation grayscale voltage based on the grayscale change level, and compensates for the compensation region of the input image data based on the compensation grayscale voltage to generate output image data.
    Type: Application
    Filed: July 14, 2022
    Publication date: March 9, 2023
    Inventors: YOUNGUK HWANG, SEUNG-KYU LEE, SUNGJIN KIM, MYEONGHEE SEO
  • Publication number: 20230068220
    Abstract: A display device includes a display unit including a plurality of pixels coupled to a plurality of data lines, a plurality of scan lines, and a plurality of emission control lines, a controller for determining a width of a gate-off section of an emission control signal, which corresponds to a non-emission section of each of a plurality of frames belonging to a dimming period, in response to a dimming signal, and an emission driver for supplying the emission control signal in units of a plurality of consecutive pixel rows through the plurality of emission control lines.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 2, 2023
    Inventors: SI BEAK PYO, SEUNG KYU LEE, MIN SEONG SON
  • Publication number: 20230049847
    Abstract: The present disclosure relates to a capacitive touch-type power seat switch using a receptacle, mounted on a seat of a vehicle and configured to control a position of the seat and a function thereof, the power seat switch comprising: a knob configured to be moved upwards, downwards, leftwards, and rightwards by operation of a user; an operation transmission unit configured to transmit an operation direction of the knob when the knob is moved upwards, downwards, leftwards, and rightwards, and to implement a function of the power seat switch in response to an operation signal according to the transmitted operation direction; a receptacle installed in a PCB provided in the operation transmission unit; a sensor electrode electrically connected to the receptacle and configured to detect variation in capacitance; and a sensor circuit part electrically connected to the sensor electrode.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 16, 2023
    Inventors: Hyun Seok SONG, Beom Sun KIM, Tae Hyoung YANG, Seung Kyu LEE, Byeong Wook KIM
  • Publication number: 20230044290
    Abstract: A display device including a display area and a non-display area, an inorganic insulating layer disposed on a substrate, the inorganic insulating layer disposed in the display area and the non-display area, pixels disposed on the substrate and overlapping the inorganic insulating layer in a plan view, the pixels disposed in the display area, and an organic insulating layer disposed on the substrate and overlapping the inorganic insulating layer and the pixels in a plan view, the organic insulating layer disposed at least in the display area. The non-display area includes an organic layer-free area including at least one of a corner and an outer edge area of the display device. The organic insulating layer is disposed on a portion of the substrate so as to be disposed in an area except for the organic layer-free area.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 9, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyung June KIM, Sang Seop KUM, Won Tae KIM, Seung Kyu LEE, Eun Je JANG, Jang Bog JU
  • Publication number: 20230030535
    Abstract: A display device comprises sub-pixels, a bank disposed on a substrate and disposed at a boundary between the sub-pixels, a wavelength control layer including wavelength conversion layers disposed in a region surrounded by the bank and a light transmitting layer disposed in the sub-pixels, a color filter layer disposed on the wavelength control layer, and light emitting element layers disposed between the substrate and the wavelength control layer, the light emitting layers including a light emitting element disposed in one of the sub-pixels, and connection electrodes connected to ends of the light emitting element.
    Type: Application
    Filed: June 10, 2022
    Publication date: February 2, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Kyu LEE, Won Tae KIM, Hoon KIM, Yong Sik HWANG
  • Patent number: 11568818
    Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: January 31, 2023
    Inventors: Kwang-Min Kim, Seung-Kyu Lee, Won Kyu Kwak
  • Publication number: 20230005431
    Abstract: A display device includes a display panel including a pixel connected to scan lines and a data line, a scan driving circuit, a data driving circuit, and a driving controller that controls the scan driving circuit and the data driving circuit. The pixel includes a light-emitting diode and an initialization transistor connected between a first initialization voltage line and a first electrode of the light-emitting diode and including a gate electrode connected to a first scan line among the scan lines. A first scan signal provided to the first scan line during a blank period has an active level during a predetermined initialization time duration, and the predetermined initialization time duration is set to a time duration corresponding to a luminance characteristic of the display panel.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 5, 2023
    Inventors: YOUNWOO CHOE, SEUNG-KYU LEE, MINSEONG SON, SEMIN JEONG
  • Patent number: 11543709
    Abstract: A display substrate including a base substrate having a display area and a non-display area around the display area, a plurality of gate lines disposed in the display area and extending in a first direction, a plurality of data lines disposed in the display area, insulated from the gate lines, and extending in a second direction crossing the first direction, and a plurality of data line extension portions extending from the data lines to the non-display area, in which each of the data line extension portions includes a first portion and a second portion disposed at a higher position than the first portion.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: January 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Kyu Lee, Hyunseong Kang, Suin Kim, Byeongjae Ahn, Gijung Lee, Byeonghoon Cho
  • Patent number: 11545073
    Abstract: A display device includes a display unit including a plurality of pixels coupled to a plurality of data lines, a plurality of scan lines, and a plurality of emission control lines, a controller for determining a width of a gate-off section of an emission control signal, which corresponds to a non-emission section of each of a plurality of frames belonging to a dimming period, in response to a dimming signal, and an emission driver for supplying the emission control signal in units of a plurality of consecutive pixel rows through the plurality of emission control lines.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Beak Pyo, Seung Kyu Lee, Min Seong Son
  • Publication number: 20220384400
    Abstract: A mother panel for a display panel includes: a mother substrate including a display panel area and a dummy area surrounding the display panel area, the mother substrate having a cutting line defined thereon, wherein the cutting line is configured to be irradiated by a laser along a boundary between the display panel area and the dummy area; and a first heat dissipation pattern on the mother substrate, extending from the display panel area to the dummy area to overlap the cutting line, and including a first rod portion including a plurality of lower rods spaced apart from each other and a first body portion in the dummy area and contacting the first rod portion.
    Type: Application
    Filed: April 27, 2022
    Publication date: December 1, 2022
    Inventors: SEUNG-KYU LEE, WONTAE KIM, HYUNGJUNE KIM
  • Patent number: 11501694
    Abstract: A display device includes: a plurality of pixels to receive data voltages based on converted grayscales; and a grayscale converter to: calculate first compensation offsets based on positions of the pixels and input grayscales for the pixels; convert the first compensation offsets into second compensation offsets according to a maximum luminance weight based on an input maximum luminance; and calculate the converted grayscales by applying the second compensation offsets to the input grayscales.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Beak Pyo, Seung Kyu Lee, Young Uk Hwang
  • Publication number: 20220358884
    Abstract: A display device includes a display panel including pixels coupled to a first scan line and a data line, a power supply to supply voltages, a scan driver to provide a first scan signal to the first scan line a plurality of times for a first frame period (FFP), a data driver to supply a data signal to the data line, and a timing controller to control driving of components. The FFP includes: a first active period (FAP), in which the data signal is supplied; and a first blank period (FBP), in which the data signal is not supplied. The power supply provides on-bias power having a first voltage level (FVL) in the FAP, and provides on-bias power having a second voltage level (SVL) in the FBP. The FBP following the FAP includes a first dimming period in which the on-bias power gradually changes from the FVL to the SVL.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 10, 2022
    Inventors: Se Byung CHAE, Seung Kyu LEE
  • Publication number: 20220358898
    Abstract: The present disclosure relates to a display device including first pixels disposed in a first pixel area, and connected to first scan lines; second pixels disposed in a second pixel area, and connected to second scan lines; a timing controller configured to supply a first clock signal and a second clock signal to a first clock line and a second clock line, respectively; a first scan driver configured to receive the first clock signal through the first clock line, and to supply a first scan signal to the first scan lines; and a second scan driver configured to receive the second clock signal through the second clock line, and to supply a second scan signal to the second scan lines, wherein the second pixel area has a smaller width than the first pixel area.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 10, 2022
    Inventors: Jin Tae JEONG, Tae Hoon KWON, Min Ku LEE, Ji Hyun KA, Seung Kyu LEE, Seung Ji CHA