Patents by Inventor Kwang-Chul Jung

Kwang-Chul Jung 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: 20190363567
    Abstract: A method comprises providing power from a battery to an external device using a first circuit; and receiving power from a first power source to provide power to the battery using a second circuit while providing power to the external device.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 28, 2019
    Inventors: Hee-Tae KIM, Ku-Chul JUNG, Kwang-Sub LEE, Se-Young JANG
  • Patent number: 10483341
    Abstract: A display device includes first pixels in a first pixel area and coupled with first scan lines, first scan stage circuits in a first peripheral area outside the first pixel area, and configured to supply a first scan signal to the first scan lines, second pixels in a second pixel area having a width that is less than a width of the first pixel area, and coupled with second scan lines, second scan stage circuits in a second peripheral area outside the second pixel area, and configured to generate a second scan signal, and first load matching units respectively between the second scan stage circuits, and configured to delay the second scan signal, and to supply the delayed second scan signal to the second scan lines.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Chul Jung, Hyun Joon Kim, Sung Yoon Kim, Hyun Suk Yang, Doo Youl Lee
  • Patent number: 10462272
    Abstract: An electronic device includes a housing including a first surface, a second surface, and a third surface defining an internal space of the housing, a touch screen display interposed between the first surface and the second surface, and a sensor module disposed under the touch screen display and including a light emitting unit and a light receiving unit, wherein the third surface includes a plurality of through holes each including optical structures, wherein a portion of light emitted from the light emitting unit is guided to an exterior of the electronic device through a first optical structure of a first through hole, and wherein at least a portion of light introduced from the exterior of the electronic device is guided to the light receiving unit on a second optical structure of a second through hole.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: October 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Su Jung, Jae Wan Kim, Sung Won Hong, Kwang Tai Kim, Seung Ah Oh, Jung Won Lee, Jong Chul Choi
  • Patent number: 10409117
    Abstract: A liquid crystal display includes: a first substrate; and pixel electrodes disposed on the first substrate, each of the pixel electrodes including: a stem including a first stem and a second stem perpendicularly crossing each other; and a plurality of branch electrodes extending from the stem, wherein one of the first stem of and the second stem of each pixel electrode has a different width corresponding to a location of pixel electrodes on the display.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: September 10, 2019
    Assignee: Samsung Dispiay Co., Ltd.
    Inventors: Sun Hwa Lee, Kwang-Chul Jung, Mee-Hye Jung
  • Publication number: 20190264343
    Abstract: The present invention relates to a method for producing metallic lithium, and specifically a method for preparing lithium metal according to an embodiment of the present invention, comprises: preparing lithium phosphate; preparinge a mixture by adding a chlorine compound to the lithium phosphate; heating the mixture; obtaining lithium chloride by reacting the lithium phosphate and the chloride compound in the mixture; producing molten lithium metal by electrolyzing the lithium chloride; and recovering the molten lithium metal is disclosed.
    Type: Application
    Filed: June 7, 2016
    Publication date: August 29, 2019
    Inventors: Woon Kyoung PARK, Dae Yeob Park, Kwang Seok PARK, Woo Chul JUNG
  • Publication number: 20190263670
    Abstract: An apparatus for preparing carbonate according to an embodiment of the present invention includes a reactor in which carbonation gas reacts with a solution to be carbonated; a first nozzle located at one side of the reactor, and discharging the solution to be carbonated into the reactor, a second nozzle located adjacent to the first nozzle, and spraying the carbonation gas into the path through which the solution to be carbonated is discharged to form a mist composed of the solution to be carbonated and the carbonation gas, and a recovery unit located at a lower end of the reactor, and recovering a carbonate salt from the slurry formed in the reactor.
    Type: Application
    Filed: June 7, 2016
    Publication date: August 29, 2019
    Inventors: Woo Chul JUNG, Sang Gil LEE, Kwang Seok PARK, Sung Kook PARK, Ki Young KIM, Jin Yeop WI, Hyun Woo LEE, Woon Kyoung PARK, Myung Gyu LEE
  • Patent number: 10374450
    Abstract: A method comprises providing power from a battery to an external device using a first circuit; and receiving power from a first power source to provide power to the battery using a second circuit while providing power to the external device.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Tae Kim, Ku-Chul Jung, Kwang-Sub Lee, Se-Young Jang
  • Publication number: 20190233297
    Abstract: This disclosure relates to a method of preparing a lithium compound that includes preparing a lithium phosphate, mixing the lithium phosphate with sulfuric acid to obtain a mixture, converting the lithium phosphate into lithium sulfate through a reaction in the mixture, and separating the lithium sulfate in a solid phase, wherein in the step of converting the lithium phosphate into lithium sulfate through the reaction in the mixture, a sum concentration ([P+S] mol/L) of phosphorus (P) and sulfur (S) in a liquid phase of the mixture is greater than or equal to 5 mol/L.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 1, 2019
    Inventors: Juyoung Kim, Ki Young Kim, Woo Chul Jung, Kwang Seok PARK, Hyunwoo Lee, Woonkyoung Park, Sang Won Kim, Jung Kwan Park, Heok Yang, Sung Kook Park, Seung Taek Kuk
  • Publication number: 20190130840
    Abstract: A display device includes: first pixels in a first pixel region and being connected to first scan lines; second pixels in a second pixel region that is located at a side of the first pixel region and has a width smaller than a width of the first pixel region and being connected to second scan lines; third pixels in a third pixel region that is spaced apart from the second pixel region and has a width smaller than the width of the first pixel region and being connected to third scan lines; a load matching unit in a peripheral region at an outside of the second pixel region and the third pixel region and configured to match loads of the second scan lines and the third scan lines to that of the first scan lines; and a protection unit in the peripheral region and being connected between the second and third pixels and the load matching unit.
    Type: Application
    Filed: August 1, 2018
    Publication date: May 2, 2019
    Inventors: Yong Sung Park, Min Woo Byun, Kwang Chul Jung, Hyun Joon Kim, Sung Yoon Kim, Hyun Suk Yang, Doo Youl Lee
  • Publication number: 20190096978
    Abstract: A display device includes first pixels in a first pixel area and coupled with first scan lines, first scan stage circuits in a first peripheral area outside the first pixel area, and configured to supply a first scan signal to the first scan lines, second pixels in a second pixel area having a width that is less than a width of the first pixel area, and coupled with second scan lines, second scan stage circuits in a second peripheral area outside the second pixel area, and configured to generate a second scan signal, and first load matching units respectively between the second scan stage circuits, and configured to delay the second scan signal, and to supply the delayed second scan signal to the second scan lines.
    Type: Application
    Filed: May 8, 2018
    Publication date: March 28, 2019
    Inventors: Kwang Chul JUNG, Hyun Joon KIM, Sung Yoon KIM, Hyun Suk YANG, Doo Youl LEE
  • Patent number: 10210812
    Abstract: There is provided a display panel including a plurality of white subpixels configured to display a white image, a gate line connected with the white subpixels and extended in a row direction, and an in-pixel gate driver including in-pixel elements exclusively in the white subpixels and connected with the gate line to supply a gate signal to the gate line.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: February 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-hyang Kim, Heejune Kwak, Kwang-chul Jung, Sang-uk Lim, Junki Jeong
  • Publication number: 20190012971
    Abstract: A display apparatus with improved aperture ratio and light transmittance is presented. The apparatus has a pixel group that includes a first pixel including first and second sub-regions, a second pixel including third and fourth sub-regions, and a third pixel including fifth and sixth sub-regions. The first, second, and third pixels are sequentially arranged in a first direction and at least two sub-regions of the first, third, and fifth sub-regions have different widths in the first direction. The second, fourth, and sixth sub-regions are sequentially arranged in the first direction, and at least one sub-region of the second, fourth, and sixth sub-regions expands toward an adjacent sub-region in the first direction and has a width greater than a width of the other sub-regions of the second, fourth, and sixth sub-regions in the same pixel group.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 10, 2019
    Inventors: Sunhwa LEE, Kwang-chul JUNG, Sang-Uk LIM
  • Patent number: 10096289
    Abstract: A display apparatus with improved aperture ratio and light transmittance is presented. The apparatus has a pixel group that includes a first pixel including first and second sub-regions, a second pixel including third and fourth sub-regions, and a third pixel including fifth and sixth sub-regions. The first, second, and third pixels are sequentially arranged in a first direction and at least two sub-regions of the first, third, and fifth sub-regions have different widths in the first direction. The second, fourth, and sixth sub-regions are sequentially arranged in the first direction, and at least one sub-region of the second, fourth, and sixth sub-regions expands toward an adjacent sub-region in the first direction and has a width greater than a width of the other sub-regions of the second, fourth, and sixth sub-regions in the same pixel group.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunhwa Lee, Kwang-chul Jung, Sang-Uk Lim
  • Patent number: 9989752
    Abstract: An electrowetting device is provided that includes a lower substrate and an upper substrate facing each other, a first electrode positioned on the lower substrate, an edge electrode positioned on the lower substrate and adjacent to an edge of the first electrode, a hydrophobic insulating layer positioned on the first electrode and the edge electrode, a partition positioned on the lower substrate, a second electrode positioned on the upper substrate, and a first liquid and a second liquid positioned between the upper substrate and the lower substrate, wherein an electric field of a portion where the edge electrode is positioned is smaller than an electric field of a portion where the first electrode is positioned.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 5, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Kwang-Chul Jung, Seong Gyu Kwon, Mee Hye Jung
  • Patent number: 9904087
    Abstract: A liquid crystal display according to an exemplary embodiment of the present disclosure includes: a substrate; a pixel electrode disposed on the substrate; a roof layer facing the pixel electrode; a liquid crystal layer disposed in a plurality of microcavities between the pixel electrode and the roof layer; a partition disposed between adjacent microcavities among the plurality of microcavities; and a shielding electrode disposed between the substrate and the partition, wherein the shielding electrode is disposed on the same layer as the pixel electrode.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: February 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Hwa Lee, Kwang-Chul Jung, Il Gon Kim
  • Patent number: 9898980
    Abstract: A display apparatus includes a plurality of pixels arranged in columns and rows in a display area, a data line extending in a first direction and connected with pixels of a k-th column (‘k’ is a natural number) and a (k+1)-th column, a gate line extending in a second direction crossing the first direction and connected with ones of the pixels, a gate signal line extending in the first direction and connected with the gate line, and a gate driver in a first peripheral area adjacent to a first longer side of the display area and having a first width, and configured to apply a gate signal to the gate line.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho-Kyoon Kwon, Myoung-Soo Kim, Sang-Ik Lee, Kyoung-Ho Lim, Kwang-Chul Jung, Jun-Ki Jeong, Ki-Seok Cha, Joon-Chul Goh, Bong-Hyun You
  • Patent number: 9875717
    Abstract: Provided is a liquid crystal display device including: a substrate; a first gate line; a first data line and a second data line to which data voltages with different polarities are applied; a first pixel electrode connected to the first gate line and the first data line; a liquid crystal layer formed on the first pixel electrode; and a first common electrode and a second common electrode disposed on the liquid crystal layer, in which the first pixel electrode includes a first subpixel electrode overlapping with the first common electrode and a second subpixel electrode overlapping with the second common electrode. A first voltage and A second voltage are alternatingly applied to the first common electrode and the second common electrode every two or more frames, respectively.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Mi Kang, Kwang-Chul Jung, Cheol-Gon Lee, Mee Hye Jung
  • Patent number: 9837034
    Abstract: A display device may include the following elements: a plurality of gate lines extending in a first direction; a plurality of data lines extending in a second direction; a gate driver configured for applying gate signals to the gate lines; a data driver configured for applying data voltages to the data lines; a plurality of pixels electrically connected to the plurality of gate lines and the plurality of data lines; and a control wire set that traverses overlaps an area of a first pixel of the plurality of pixels, electrically interconnects the gate driver and the data driver, and is configured to transmit a control signal from the data driver to the gate driver.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Chul Jung, Sun Hwa Lee, Il Gon Kim, Sang-Uk Lim, Jun Ki Jeong
  • Patent number: 9823532
    Abstract: A liquid crystal display includes: a first substrate; a gate line disposed on the first substrate; a first data line and a second data line disposed on the first substrate; a first thin film transistor connected to the gate line and to the first data line; a first subpixel electrode connected to the first thin film transistor; a second thin film transistor connected to the gate line and to the second data line; a second subpixel electrode connected to the second thin film transistor; a third thin film transistor connected to the gate line and to the first data line; a fourth thin film transistor connected to the gate line and to the second data line; and a third subpixel electrode connected to the third and fourth thin film transistors.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Il Gon Kim, Jun Ki Jeong
  • Patent number: 9817282
    Abstract: A liquid crystal display includes: a first substrate; a pixel electrode disposed on the first substrate; a second substrate facing the first substrate; a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The common electrode includes a first cross-shaped cutout overlapping the pixel electrode, and a second cutout parallel to an edge of the pixel electrode, the second cutout being separated from the edge of the pixel electrode.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Yun, Hyun-Cheol Moon, Jae Hong Park, Oh Jeong Kwon, Hyeok Jin Lee, Sang-Uk Lim, Jiang Shuai, Kyung Hye Park, Joo Young Yoon, Kwang-Chul Jung, Sang Cheol Shin, Joo Ae Youn