Patents by Inventor Kyung-Man Kim

Kyung-Man Kim 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: 20230195174
    Abstract: A window includes a first folding portion foldable about a first folding axis extended in a first direction, and including upper and lower surfaces facing each other, and a second folding portion foldable about a second folding axis extended in a second direction crossing the first direction, including the upper and lower surfaces, and including a portion of the first folding portion. First upper grooves extended in the first direction and recessed from the upper surface and first lower grooves extended in the first direction and recessed from the lower surface are defined in the first folding portion, and second upper grooves extended in the second direction and recessed from the upper surface and second lower grooves extended in the second direction and recessed from the lower surface are defined in the second folding portion. The portion is defined as a crossing portion in which the grooves are defined.
    Type: Application
    Filed: August 23, 2022
    Publication date: June 22, 2023
    Inventors: SUNGHOON KIM, KYUNG-MAN KIM, DAWOON KIM, SANGHOON KIM, SEUNGHO KIM, YURI KIM, MIN-HOON CHOI, SEONGJIN HWANG
  • Publication number: 20230199982
    Abstract: A window includes: a folding part foldable around a virtual folding axis extending in a first direction, and first and second non-folding parts spaced apart from each other in a second direction perpendicular to the first direction with the folding part therebetween. A plurality of groove patterns extending in the first direction and arranged in the second direction are defined in the folding part. The folding part includes a first part adjacent to the folding axis, a third part adjacent to one of the first and second non-folding parts and a second part between the first part and the third part. widths of the first to third parts in the second direction are the same. A volume of the first part is greater than a volume of the second part, and the volume of the second part is greater than a volume of the third part.
    Type: Application
    Filed: September 30, 2022
    Publication date: June 22, 2023
    Inventors: KYUNG-MAN KIM, DAWOON KIM, SANGHOON KIM, SUNGHOON KIM, SEUNGHO KIM, YURI KIM, MIN-HOON CHOI, SEONGJIN HWANG
  • Publication number: 20230185342
    Abstract: A window includes a body unit in which a plurality of grooves is defined, and a width of a groove of the plurality of grooves in a first direction which is parallel to a main extension direction of the body unit is about 80 micrometers (?m) to about 100 ?m.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 15, 2023
    Inventors: Min-Hoon CHOI, Seung Ho KIM, Yu Ri KIM, Seong Jin HWANG, Kyung-Man KIM, Byung Hoon KANG, Sang Hoon KIM, Sung Hoon KIM
  • Publication number: 20230180588
    Abstract: A display device includes a display module, a glass substrate, a buffer film, and a light blocking layer, the buffer film includes a base film and a nanoparticle coating layer provided on at least one surface of the base film, and the nanoparticle coating layer includes a binder and a plurality of nanoparticles. Therefore, the display device according to one or more embodiments may have excellent durability and visibility.
    Type: Application
    Filed: November 12, 2020
    Publication date: June 8, 2023
    Inventors: Min-Hoon CHOI, Minsang KOO, Kyung-Man KIM, Sanghoon KIM, Seongjin HWANG
  • Patent number: 11670240
    Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: pixels; scan lines extending in a row direction and connected to the pixels; a data lines extending in a column direction and connected to the pixels; a receiving lines extending in the column direction and connected to the pixels; and a compensation circuit portion that generates first sensing data by receiving a current flowing to the pixels through the receiving lines, and generates a compensation value that compensates a characteristic of a driving transistor included in each of the pixels by multiplying the first sensing data by a calibration factor that corresponds to a position of each of the pixels, wherein the calibration factor includes a line calibration factors that correspond to the receiving lines.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: June 6, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Man Kim, Seok Gyu Ban
  • Patent number: 11665941
    Abstract: A method of compensating for degradation of a display device includes sensing a first sensing current flowing through a sensing line connected to a pixel, which includes a programming period for writing a data voltage of a predetermined color to a storage capacitor of the pixel, sensing a sensing voltage of the sensing line, which includes a period for charging a line capacitor connected to the sensing line, estimating a voltage of an anode electrode of an organic light emitting diode using a second sensing current estimated from the first sensing current and the sensing voltage, and determining a degradation compensation value using the voltage of the anode electrode.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: May 30, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Man Kim, Seok Gyu Ban, Sang Jae Yeo
  • Patent number: 11644598
    Abstract: A protection member, a display device and a method for fabricating a protection member for display are provided. A protection member for display includes a glass substrate including a surface and another surface facing each other in a thickness direction, and a side surface extended between the surface and the another surface, a coating layer that overlaps and contacts the side surface of the glass substrate, and includes a surface and another surface facing each other in a thickness direction, and a side surface extended between the surface and the another surface, and an impact absorbing pattern disposed on at least a portion of the coating layer and including at least one of grooves and holes.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Sang Koo, Kyung Man Kim, Sang Hoon Kim, Min Hoon Choi, Seong Jin Hwang
  • Publication number: 20230140591
    Abstract: A window includes a folding portion foldable with respect to an imaginary folding axis extending in a first direction, a first non-folding portion, and a second non-folding portion spaced apart from the first non-folding portion in a second direction perpendicular to the first direction with the folding portion interposed therebetween. The folding portion includes a base portion and a plurality of protrusion portions disposed on the base portion and spaced apart from each other in the second direction. A width, in the first direction, of the folding portion is smaller than a width, in the first direction, of each of the first non-folding portion and the second non-folding portion.
    Type: Application
    Filed: August 16, 2022
    Publication date: May 4, 2023
    Inventors: SEONGJIN HWANG, KYUNG-MAN KIM, DAWOON KIM, SANGHOON KIM, SUNGHOON KIM, SEUNGHO KIM, YURI KIM, MIN-HOON CHOI
  • Publication number: 20230124699
    Abstract: A member for a window module includes a base layer which is foldable and in which a groove defined. The base layer includes a first dam structure in which the groove is defined. The member further includes a filler filled in the groove.
    Type: Application
    Filed: July 26, 2022
    Publication date: April 20, 2023
    Inventors: SUNGHOON KIM, BYUNGHOON KANG, KYUNG-MAN KIM, SANGHOON KIM, SEUNGHO KIM, YURI KIM, MIN-HOON CHOI, SEONGJIN HWANG
  • Publication number: 20230092445
    Abstract: A display apparatus includes a display panel, a scan driver, a data driver and a timing controller. The display panel includes a plurality of pixels that are connected to a plurality of data lines and a plurality of scan lines having different lengths. The scan driver apply a plurality of scan signals to the plurality of scan lines. The data driver apply a plurality of data voltages to the plurality of data lines, and receive a plurality of sensing data that represent operating characteristics of all of the plurality of pixels from a plurality of sensing lines. The timing controller controls operations of the scan driver and the data driver, generates output image data considering the operating characteristics of all of the plurality of pixels and supply the output image data to the data drive.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 23, 2023
    Inventors: JAE HOON SHIN, KYUNG MAN KIM
  • Publication number: 20230069383
    Abstract: A display device includes a substrate including a first surface from which a pattern including an end portion is defined and a second surface which is parallel to the first surface. When an inner radius from a reference line positioned above the end portion and parallel with the first surface of the substrate to a surface of the pattern defining about 90 degrees is referred to as a first inner radius and an inner radius from the reference line to the surface of the pattern defining about 45 degrees is a second inner radius, a ratio of the second inner radius to the first inner radius is about 0.7 or more.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 2, 2023
    Inventors: Yu Ri KIM, Kyung-Man KIM, Da Woon KIM, Sang Hoon KIM, Sung Hoon KIM, Seung Ho KIM, Min-Hoon CHOI, Seong Jin HWANG
  • Publication number: 20230032676
    Abstract: A window includes a first cover layer, a second cover layer, and a first adhesive part. The first cover layer includes a first non-folding area, a folding area, and a second non-folding area that are arranged in a first direction, and a plurality of first recessed portions recessed from a top surface of the folding area and extended in a second direction intersecting the first direction. The second cover layer is disposed on the first cover layer. The first adhesive part is disposed between the first cover layer and the second cover layer, and includes protrusions disposed in the plurality of first recessed portions of the first cover layer.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 2, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: SANGHOON KIM, MINSANG KOO, KYUNG-MAN KIM, SEUNGHO KIM, MIN-HOON CHOI, SEONGJIN HWANG
  • Publication number: 20220411325
    Abstract: A cover window manufacturing system comprises a laser irradiation apparatus including a stage configured to receive a substrate. A first laser module is disposed above the stage to provide a first laser beam to a top surface of the substrate. A controller controls a position of a focal point of the first laser beam on the substrate. An etching apparatus includes a chamber having an etching solution disposed therein. The etching apparatus is configured to receive the substrate processed by the laser irradiation apparatus and etch the substrate processed by the laser irradiation apparatus by immersion in the etching solution.
    Type: Application
    Filed: April 15, 2022
    Publication date: December 29, 2022
    Inventors: Kyung Man KIM, Sung Hoon Kim, Da Woon Kim, Yu Ri Kim, Seong Jin Hwang
  • Publication number: 20220404876
    Abstract: A cover window includes a first member and a second member attached to the first member. A folding portion and a non-folding portion are defined in the cover window, the folding portion includes an inner surface which is compressed when the cover window is folded and an outer surface which is stretched when the cover window is folded, the first member is closer to the inner surface than the second member is, and the second member is closer to the outer surface than the first member is. The second member includes a plurality of support units in the folding portion and spaced apart from each other.
    Type: Application
    Filed: February 22, 2022
    Publication date: December 22, 2022
    Inventors: Sang Hoon KIM, Kyung-Man KIM, Sung Hoon KIM, Seong Jin HWANG
  • Publication number: 20220404869
    Abstract: A glass window includes a first non-folding area, a folding area, and a second non-folding area disposed in a first direction, a first filling layer, a pattern glass disposed below the first filling layer and including an upper surface and a lower surface opposite to the upper surface, and a second filling layer disposed below the pattern glass, the pattern glass includes at least one first pattern part including a groove pattern disposed on an upper surface of the folding area, a first non-pattern part adjacent to the at least one first pattern part of the folding area, at least one second pattern part including a groove pattern disposed on a lower surface of the folding area, and a second non-pattern part adjacent to the at least one second pattern part of the folding area.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 22, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: SUNGHOON KIM, SEONGTAEK LEE, SEUNGHO KIM, KYUNG-MAN KIM, DAWOON KIM, SANGHOON KIM, YURI KIM, MIN-HOON CHOI, SEONGJIN HWANG
  • Patent number: 11514825
    Abstract: A window includes a base layer including a first non-folding region; a second non-folding region; a folding region disposed between the first non-folding region and the second non-folding region in a first direction; and at least one first recessed portion overlapping the folding region and extending in a second direction intersecting the first direction, a first nano pattern layer disposed in the at least one first recessed portion, and including first protrusion patterns; and a first soft portion disposed on the first nano pattern layer.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung-Man Kim, Minsang Koo, Sanghoon Kim, Yuri Kim, Min-Hoon Choi, Seongjin Hwang
  • Patent number: 11514847
    Abstract: A display device includes a display unit, a timing controller, a data driver, and a sensing unit. The display unit includes a data line, a sensing line, and a pixel that includes a light emitting element and a transistor for providing a driving current to the light emitting element. The timing controller generates a first voltage value by compensating a first grayscale value and generates a second voltage value by remapping the first voltage value from a first voltage range to in a second voltage range. The data driver generates a data voltage based on the second voltage value and supplies the data voltage to the data line. The sensing unit provides an initialization voltage to the sensing line. A voltage difference between the data voltage and a threshold voltage of the transistor is greater than or equal to the initialization voltage.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: November 29, 2022
    Inventors: Seok Gyu Ban, Kyung Man Kim, Wook Lee
  • Patent number: 11508308
    Abstract: A display apparatus includes a display panel, a scan driver, a data driver and a timing controller. The display panel includes a plurality of pixels that are connected to a plurality of data lines and a plurality of scan lines having different lengths. The scan driver apply a plurality of scan signals to the plurality of scan lines. The data driver apply a plurality of data voltages to the plurality of data lines, and receive a plurality of sensing data that represent operating characteristics of all of the plurality of pixels from a plurality of sensing lines. The timing controller controls operations of the scan driver and the data driver, generates output image data considering the operating characteristics of all of the plurality of pixels and supply the output image data to the data drive.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: November 22, 2022
    Inventors: Jae Hoon Shin, Kyung Man Kim
  • Patent number: 11482181
    Abstract: A display device includes: a display panel including a plurality of pixels; a sensing data memory configured to store sensing data for threshold voltages of driving transistors of the plurality of pixels; a controller configured to determine a total threshold voltage shift amount for the driving transistors of the plurality of pixels based on the sensing data, to determine total luminance data based on input image data, to determine a frame stress based on the total luminance data and the total threshold voltage shift amount, to determine a target compensation voltage level based on the frame stress, and to generate compensated image data by compensating the input image data based on the target compensation voltage level; and a data driver configured to provide data voltages to the plurality of pixels based on the compensated image data.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: October 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo Young An, Kyung Man Kim, Wook Lee
  • Patent number: 11474561
    Abstract: A window includes a first cover layer, a second cover layer, and a first adhesive part. The first cover layer includes a first non-folding area, a folding area, and a second non-folding area that are arranged in a first direction, and a plurality of first recessed portions recessed from a top surface of the folding area and extended in a second direction intersecting the first direction. The second cover layer is disposed on the first cover layer. The first adhesive part is disposed between the first cover layer and the second cover layer, and includes protrusions disposed in the plurality of first recessed portions of the first cover layer.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sanghoon Kim, Minsang Koo, Kyung-Man Kim, Seungho Kim, Min-Hoon Choi, Seongjin Hwang