Patents by Inventor Jae Keun LIM

Jae Keun LIM 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: 11951890
    Abstract: Proposed are a seat side bolster apparatus and a control method thereof. The seat side bolster apparatus of the disclosure includes a driving unit, which is provided under a foam pad of a seat cushion, is moved upwards and downwards by operation of an actuator, and presses the foam pad upwards when moving upwards, and a covering bracket, which is connected to the driving unit so as to be moved upwards and downwards together with the driving unit and to which an end of a covering enveloping the foam pad of the seat cushion is fixed.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: April 9, 2024
    Assignee: HYUNDAI TRANSYS INCORPORATED
    Inventors: Jae Keun Park, Do Hyun Kim, Sung Hyun Jo, Seung Joon Lee, Jae Sang Lim
  • Publication number: 20240105108
    Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.
    Type: Application
    Filed: April 19, 2023
    Publication date: March 28, 2024
    Inventors: Hae Kwan SEO, Bon Seog GU, Jin Young ROH, Jae Keun LIM
  • Patent number: 11942030
    Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hae Kwan Seo, Bon Seog Gu, Jin Young Roh, Jae Keun Lim
  • Publication number: 20240078974
    Abstract: A display device including: a power supply configured to supply a first power, a second power, and a third power to a first power line, a second power line, and a third power line, respectively, wherein each of the first power, the second power and the third power varies in voltage level during one frame period; and pixels connected to at least one of scan lines and data lines, and connected to a common control line, the first power line, the second power line, and the third power line, wherein the pixels simultaneously emit light when the second power is changed to a low level, and a number of times the second power is changed to the low level during the one frame period changes in response to an image refresh rate.
    Type: Application
    Filed: June 6, 2023
    Publication date: March 7, 2024
    Inventors: Hong Soo KIM, Myung Woo LEE, Suk Hun LEE, Jae Keun LIM
  • Patent number: 11920856
    Abstract: A refrigerator includes a storage chamber having an opening; a drawer type door to open or close the opening; a display positioned at the drawer type door; a first connector provided at a sidewall of the storage chamber; a second connector provided at the drawer type door and being electrically connected to the display; a first frame coupled to an inner wall of the storage chamber, the first frame to cover the first connector; a second frame coupled to the drawer type door, the second frame to support a storage box; and a wire electrically connected between the first connector and the second connector. The first frame has a first accommodating part to accommodate one portion of the wire and the second frame has a second accommodating part to accommodate another portion of the wire.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Myung Han, Jae Hoon Lim, Gi Joong Jeong, Woo Yeol Yoo, Jong Eun Chae, Sun keun Lee
  • Patent number: 11837143
    Abstract: A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jin Lee, Jae Keun Lim, Hong Soo Kim, Jinyoung Roh, Sehyuk Park
  • Patent number: 11763725
    Abstract: A display device of the invention includes: a pixel portion including first pixel rows connected to first scan lines and second pixel rows connected to second scan lines; a scan driver including first and second stages connected to the first scan lines and the second scan lines; and a data driver connected to the first and second pixel rows through same data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, a first start stage of the first stages and a second start stage of the second stages are connected to a same scan start line, each first stage excluding the first start stage is connected to a first scan line of a previous first stage, and each second stage excluding the second start stage is connected to a second scan line of a previous second stage.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Keun Lim, Han Bit Kim, Hong Soo Kim, Jin Young Roh, Se Hyuk Park, Hyo Jin Lee
  • Patent number: 11727867
    Abstract: A pixel of an organic light emitting diode display device includes a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor and an organic light emitting diode. The third transistor includes first and second sub-transistors which are coupled to each other in series between a drain of the first transistor and a gate node, and a fourth transistor includes third and fourth sub-transistors which are coupled to each other in series between a line of an initialization voltage and the gate node. The eighth transistor applies a reference voltage to a first node between the first and second sub-transistors in response to an emission signal, and a ninth transistor applies the reference voltage to a second node between the third and fourth sub-transistors in response to the emission signal.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sehyuk Park, Jae Keun Lim, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee
  • Patent number: 11705044
    Abstract: A display device includes: a pixel part to display an image and including pixels receiving a reference voltage; a controller to determine a value of the reference voltage based on a load of the entire pixel part, and to control a grayscale range of image data according to a location in the pixel part based on the reference voltage; a data driver to supply data voltages to the pixel part through data lines based on grayscale ranges adjusted for each location in the pixel part; and a scan driver to supply a scan signal to the pixels through scan lines.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: July 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Young Roh, Hyo Jin Lee, Jae Keun Lim, Hong Soo Kim, Se Hyuk Park
  • Patent number: 11663977
    Abstract: The present disclosure provides a display device that controls output of a scan signal, conversion of image data, and output of a data signal in response to partial scan driving. The display device includes a display panel driven in one of a first mode and a second mode, a scan driver sequentially supplying a scan signal for writing data in the first mode, a controller generating image data in which input image data is rearranged based on the first mode or the second mode, and a data driver converting the image data into data signals and supplying the data signals to output channels.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 30, 2023
    Assignee: Samsung Display Co., Lid.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11663950
    Abstract: A display device includes: a display panel configured to display an image; a signal controller configured to determine whether an input image signal is a still image signal, and determine color coordinates using data values of one frame data of the input image signal, and generate compensated image data by compensating image data of the one frame data based on the color coordinates; and a data driver configured to generate a data signal based on the compensated image data and output the compensated image data to the display panel through a data line.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: May 30, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Publication number: 20230137070
    Abstract: A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.
    Type: Application
    Filed: January 3, 2023
    Publication date: May 4, 2023
    Inventors: Hyo Jin Lee, Jae Keun Lim, Hong Soo Kim, Jinyoung Roh, Sehyuk Park
  • Patent number: 11631355
    Abstract: A display system includes: a host processor which outputs first image data and outputs scan frequency information and a partial scan enable signal, based on an image driving frequency; a display module controlled by the host processor; and an interface. The display module includes: a display driving circuit which controls a selection of pixel rows to which the data signals are supplied based on the scan frequency information and the partial scan enable signal; and a display panel which displays an image on selected pixel rows based on the data signals. In a video mode of the interface, the host processor divides and outputs the first image data through the interface during transmission periods, based on the image driving frequency, and suspends an output of the first image data through the interface during suspend periods.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyuk Park, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11626054
    Abstract: A display system and a driving method for a display system that includes an application processor configured to supply a mode control signal corresponding to a plurality of driving modes and input image data corresponding thereto; and a display module that includes pixels configured to display an image and configured to control any one of a plurality of gamma values and power source voltages supplied to the pixels in response to the plurality of driving modes.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hae Kwan Seo, Jin Wook Yang, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11610537
    Abstract: Provided is a display device comprising a pixel unit including first pixel rows connected to first scan lines and second pixel rows alternating with the first pixel rows and connected to second scan lines, a scan driver including first scan stages connected to the first scan lines and second scan stages connected to the second scan lines, and an emission driver including emission stages in which each of emission lines is connected to two or more pixel rows. Accordingly, the display device is capable of changing a display frequency and maintaining the same cycle in which luminance decreases when the display frequency is changed.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: March 21, 2023
    Inventors: Jae Keun Lim, Hong Soo Kim, Jin Young Roh, Se Hyuk Park, Woo Mi Bae, Hyo Jin Lee
  • Patent number: 11587514
    Abstract: Embodiments of the present disclosure relate to a display device and a driving method thereof, and the display device includes a demultiplexer connected to a first data line and transferring a data signal from the first data line to a plurality of second data lines during a data writing period of one frame, a compensator calculating an on-pixel ratio (OPR) using input data in the one frame and generating compensation data corresponding to a calculated OPR, and a data driver supplying the data signal to the first data line using the input data during the data writing period, and supplying a compensation data signal to the first data line using the compensation data in a blank period of the one frame, and the demultiplexer supplies the compensation data signal from the first data line to a second data line during the blank period.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: February 21, 2023
    Inventors: Jin Young Roh, Hong Soo Kim, Se Hyuk Park, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11545067
    Abstract: A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jin Lee, Jae Keun Lim, Hong Soo Kim, Jinyoung Roh, Sehyuk Park
  • Patent number: 11527204
    Abstract: A display apparatus includes a display panel, a first gate driver, a second gate driver, a third gate driver, and a data driver. The display apparatus is operable in a low frequency driving mode, and the low frequency driving mode includes a writing frame and a holding frame. At least one of gate power voltages used to generate a first gate signal, a second gate signal, and an emission signal has a first voltage level in the writing frame of the low frequency driving mode and a second voltage level in the holding frame of the low frequency driving mode. The data voltage is applied to the pixel in the writing frame of the low frequency driving mode. The data voltage applied to the pixel in the writing frame of the low frequency driving mode is maintained in the holding frame of the low frequency driving mode.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: December 13, 2022
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11521531
    Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver including N registers, where N is an integer greater than 1. The panel driver is configured to divide the display panel into N first detection regions, to perform a first still image detection operation on each of the N first detection regions by using the N registers, to divide the display panel into N second detection regions different from the N first detection regions by using a result of the first still image detection operation, and to perform a second still image detection operation on each of the N second detection regions by using the N registers.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hong Soo Kim, Jin Young Roh, Se Hyuk Park, Hyo Jin Lee, Jae Keun Lim, Jun Heyung Jung
  • Patent number: 11521546
    Abstract: A display device comprises pixels, an emission control driver, a scan driver, and a timing controller for selecting whether the display device is to operate in a first display mode in which the display device is driven at a first frequency or a second display mode in which the display device is driven at a second frequency lower than the first frequency based on input image data. The first display mode comprises first frame periods, and the second display mode comprises second frame periods having at least two sub-frames having a period equal to the first frame period. A total time required to supply the scan signals to the scan lines in one first frame period of the first frame periods and a total time required to supply the scan signals to the scan lines in one second frame period of the second frame periods are substantially same.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 6, 2022
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim