Patents by Inventor Ki-Chul Shin

Ki-Chul Shin 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: 20170248826
    Abstract: A liquid crystal display, including a first substrate; a gate line and a data line disposed on the first substrate; and a pixel electrode connected to the gate line and the data line and comprising a first sub pixel electrode and a second sub pixel electrode disposed on the first substrate. Each of the first sub pixel electrode and the second sub pixel electrode includes a transverse stem; a longitudinal stem; and a plurality of minute branches extending from transverse stem and the longitudinal stem. A width of the first sub pixel electrode is different from a width of the second sub pixel electrode.
    Type: Application
    Filed: May 11, 2017
    Publication date: August 31, 2017
    Inventors: Hak Sun CHANG, Jang Wi RYU, Ki Chul SHIN, Jae-Soo JANG
  • Publication number: 20170242306
    Abstract: A liquid crystal display device includes a base unit, a gate line disposed on the base unit, a data line disposed on the base unit and crossing the gate line while being insulated from the gate line, a shielding electrode disposed on the data line and overlapping the data line and isolated from the pixel electrode and a conductive bar, the conductive bar disposed on the same layer as that on which the shielding electrode is disposed, isolated from the shielding electrode, and extending in parallel to the data line.
    Type: Application
    Filed: January 25, 2017
    Publication date: August 24, 2017
    Inventors: Hak Sun CHANG, Cheol SHIN, Ki Chul SHIN, Se Hyun LEE, Yun Seok LEE
  • Publication number: 20170235195
    Abstract: A liquid-crystal display device includes a first substrate and a second substrate including pixels, a liquid-crystal layer interposed between the first and second substrates, pixel electrodes disposed on the first substrate, each of the pixel electrodes disposed in a pixel region of the respective pixels, and a common electrode overlapping the pixel electrodes, where each of the pixel electrodes includes, a stem electrode extended in a first direction and in a second direction intersecting the first direction to divide the pixel region into quadrants, the quadrants corresponding to first to fourth domains, respectively, first branch electrodes, second branch electrodes, third branch electrodes, a first in-between electrode, and a second in-between electrode, and where widths of the first to third branch electrodes are equal to one another, and widths of the first and second in-between electrodes increase as farther from the stem electrode.
    Type: Application
    Filed: January 11, 2017
    Publication date: August 17, 2017
    Inventors: Dong Han SONG, Su Jin KIM, Dong Chul SHIN, Ki Chul SHIN, Ho Kil OH
  • Publication number: 20170235194
    Abstract: A liquid crystal display device includes: first and second substrates facing each other and including a plurality of pixels; a liquid crystal layer between the first and second substrates and including a liquid crystal mixture. The first substrate includes a pixel electrode in each pixel. The pixel electrode includes a stem electrode extending in a first direction and a second direction in a cross shape and dividing the pixel into first to fourth domains; and branch electrodes disposed in the first to fourth domains and extending from the stem electrode in a tilted direction to the first and second directions. The branch electrodes disposed in two adjacent domains extend to have angles different from each other with respect to the first direction and the second direction. The liquid crystal mixture includes liquid crystals, and a dopant which adjusts a pitch of the liquid crystals.
    Type: Application
    Filed: September 19, 2016
    Publication date: August 17, 2017
    Inventors: Dong Chul SHIN, Dong Han SONG, Ki Chul SHIN, Ho Kil OH
  • Patent number: 9732276
    Abstract: Disclosed are an alignment layer and a liquid crystal display having the same. The alignment layer comprises a polyimide compound having an azo group and exhibiting optical alignment characteristics and a discotic liquid crystal compound exhibiting optical anisotropy. The liquid crystal display comprises first and second substrates facing each other, liquid crystal aligned between the first and second substrates, and an alignment layer formed on at least one surface of the first and second substrates. The alignment layer is adjacent to the liquid crystal and has optical alignment characteristics and optical anisotropy.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ki-Chul Shin
  • Patent number: 9720291
    Abstract: A liquid crystal display includes: a first substrate; a gate line disposed on the first substrate; an insulating layer disposed on the gate line; and first and second subpixel electrodes respectively including pixel branch electrodes, wherein the first and second subpixel electrodes respectively comprise first and second regions, the first and second regions of the first subpixel electrode have a polygonal shape where two sides meet in a diagonal line, and one of sides of the polygon, excluding the diagonal line, is perpendicular to the gate line, the first and second regions of the second subpixel electrode have grooves disposed at one of sides thereof corresponding to the shape of the first subpixel electrode, the first and second regions of the first subpixel electrode are connected with each other, and the first and second regions of the second subpixel electrode are connected with each other.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoon Kim, Ki Chul Shin, Dan Bi Yang
  • Patent number: 9709859
    Abstract: An optical modulation device includes a first plate, a second plate, and a liquid crystal layer. The first plate includes a first substrate, a lower plate electrode formed on the first substrate, a first electrode layer, and a first aligner. The first electrode layer and the first aligner are formed on the lower plate electrode. The second plate faces the first plate. The second plate includes an upper plate electrode and a second aligner. The liquid crystal layer is disposed between the first plate and the second plate. The liquid crystal layer includes a plurality of liquid crystal molecules. An alignment direction of the first aligner and an alignment direction of the second aligner are substantially parallel with each other.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su Jin Kim, Suk Choi, Sung Hwan Hong, Ki Chul Shin, Hyeok Jin Lee
  • Patent number: 9709852
    Abstract: A curved liquid crystal display includes: a first substrate; a second substrate facing the first substrate; a liquid crystal layer between the first substrate and the second substrate and including liquid crystal molecules; a first alignment layer between the first substrate and the liquid crystal layer; and a second alignment layer between the second substrate and the liquid crystal layer. The first alignment layer and the second alignment layer respectively include a polymer having at least one main chain and a plurality of side chains connected to the main chain, and at least one of the polymer of the first alignment layer and the polymer of the second alignment layer includes at least one side chain including at least one of a photo-reactor and a photo-reactor derivative.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeok Jin Lee, Oh Jeong Kwon, Su Jin Kim, Jin Won Kim, Dong Han Song, Ki Chul Shin, Dong-Chul Shin, Sung-Jae Yun
  • Patent number: 9696590
    Abstract: There is provided a liquid crystal display, including: a first substrate; a plurality of pixel electrodes comprising a pixel electrode disposed on the first substrate and including a plate-like electrode having a plate shape and a plurality of minute branches extending from a side of the plate-like electrode to the outside; a second substrate facing the first substrate; a plurality of common electrodes comprising a common electrode disposed below the second substrate and including a plurality of minute branches positioned to correspond to the plate-like electrode of the pixel electrode and the plate-like electrode positioned to corresponding to the plurality of minute branches of the pixel electrode; and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Han Song, Ki Chul Shin
  • Publication number: 20170184922
    Abstract: A liquid crystal display includes a display panel, an opposite display panel, a liquid crystal layer between the display panel and the opposite display panel. The display panel includes a first base substrate, a pretilt alignment stabilization layer including a polymer of a reactive mesogen, a first vertical alignment layer including a decomposition product of a polymerization initiator between the first base substrate and the pretilt alignment stabilization layer, and a pattern electrode between the first base substrate and the first vertical alignment layer. The opposite display panel includes a second base substrate, a patternless electrode on the second base substrate, and a second vertical alignment layer on the patternless electrode, which includes the decomposition product of the polymerization initiator. The liquid crystal layer includes a liquid crystal composition having negative dielectric anisotropy. A surface of the LCD that faces a viewer has a concave shaped curve.
    Type: Application
    Filed: June 17, 2016
    Publication date: June 29, 2017
    Inventors: Heung Shik PARK, Sang Gyun KIM, Hyun Ku AHN, Ki Chul SHIN
  • Publication number: 20170160593
    Abstract: A liquid crystal display (LCD) includes a first substrate which has a first surface, a first alignment layer which is disposed on the first surface of the first substrate and includes a polymerization initiator, a photocurable layer which is formed on the first alignment layer and includes an azobenzene group, a second substrate which has a first surface facing the first substrate and a second surface located opposite the first surface thereof, a second alignment layer which is disposed on the first surface of the second substrate, and a liquid crystal layer which is interposed between the photocurable layer and the second alignment layer.
    Type: Application
    Filed: June 15, 2016
    Publication date: June 8, 2017
    Inventors: Jae Bum CHO, Hyeok Jin LEE, Oh Jeong KWON, Ka Eun KIM, Su Jin KIM, Ki Chul SHIN
  • Patent number: 9671656
    Abstract: There is provided a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode. The first subpixel electrode includes a first cross stem portion positioned in a first subpixel region and first minute branches extending from the first cross stem portion, and includes first and second body portions that are positioned in a third subpixel region and separated from each other, and a plurality of first and second slit portions that extend from the first and second body portions, respectively. The second subpixel electrode includes a second cross stem portion positioned in a second subpixel region and second minute branches that extend from the second cross stem portion, and includes a third cross stem portion positioned in a third subpixel region and third minute branches that extend from the third cross stem portion.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong, Ki Chul Shin
  • Publication number: 20170153517
    Abstract: A liquid crystal display (“LCD”) includes: a substrate on which a pixel region is defined; and a pixel electrode which is disposed in the pixel region on the substrate. The pixel electrode includes: a plurality of unit pixel electrodes which are arranged substantially in a matrix form; and a connecting electrode which connects the unit pixel electrodes to each other. Neighboring unit pixel electrodes adjacent to each other in a column direction are separated from each other by a first in-between area extending along a row direction, neighboring unit pixel electrodes adjacent to each other in the row direction are separated from each other by a second in-between area extending along the column direction, and the connecting electrode is disposed in a region in which corners of the unit pixel electrodes face each other.
    Type: Application
    Filed: June 15, 2016
    Publication date: June 1, 2017
    Inventors: Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Se Hyun LEE
  • Publication number: 20170146832
    Abstract: A liquid crystal display includes: a display panel including first and second substrates opposite to each other, and a liquid crystal layer disposed between the first and second substrates; a reflective polarizer disposed outside the first substrate; and a backlight unit disposed outside the first substrate to provide light to the display panel, where the liquid crystal layer includes liquid crystal molecules and dichroic dye molecules, and the liquid crystal layer has a first arrangement state in which the liquid crystal molecules and the dichroic dye molecules are arranged at random.
    Type: Application
    Filed: August 29, 2016
    Publication date: May 25, 2017
    Inventors: Dong Han SONG, Su Jin KIM, Ki Chul SHIN, Dong Chul SHIN
  • Patent number: 9659536
    Abstract: A liquid crystal display device includes a plurality of pixels disposed on an insulation substrate in a horizontal direction, and including a thin film transistor region and a display area; and a reference voltage line extended along a center of the display area in a direction perpendicular to the horizontal direction. The display area includes a plurality of domains disposed in two rows, a domain in one of the two rows includes a high-gray subpixel area including a high-gray pixel electrode, and a domain in the other of the two rows includes a low-gray subpixel area including a low-gray pixel electrode. The high-gray pixel electrode and the low-gray pixel electrode each include a plurality of unit pixel electrodes, and each unit pixel electrode includes a center electrode having a planar structure and a plurality of minute branches that extend from a side of the center electrode.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: May 23, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Hak Sun Chang, Ki Chul Shin
  • Publication number: 20170139280
    Abstract: A liquid crystal display device includes a first substrate, a first alignment film disposed on the first substrate, a second substrate, and a liquid crystal layer disposed between the first alignment film and the second substrate. The first substrate has a surface curved in a first direction and the second substrate has a surface curved in the first direction. The first alignment film includes a polymerization initiator and a polymer chain that is a copolymer of a dianhydride-based compound and a diamine-based compound. The polymer chain includes a main chain including a repeating unit including an imide group, a first side chain, including a vertical align group, bonded to the main chain, and a second side chain bonded to the main chain. The functional group includes a biphenyl group or a terphenyl group.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 18, 2017
    Inventors: Hyeok Jin Lee, Oh Jeong Kwon, Jae Bum Cho, Ka Eun Kim, Su Jin Kim, Ki Chul Shin
  • Patent number: 9651834
    Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
  • Patent number: 9651833
    Abstract: A liquid crystal display device is provided. The liquid crystal display device includes a first substrate and a pixel electrode disposed on the first substrate, the pixel electrode including a cross stem and a plurality of minute branches extending from the cross stem. The cross stem includes a horizontal stem and a vertical stem crossing the horizontal stem. The liquid crystal display device further includes a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer including liquid crystal molecules interposed between the first substrate and the second substrate. Each of the minute branches includes a first side forming an angle of about 45° with the horizontal stem and a second side forming an angle of less than about 45° with the horizontal stem.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su Jeong Kim, Jong Ho Son, Ki Chul Shin
  • Publication number: 20170131602
    Abstract: A liquid crystal display includes an insulation substrate, a plurality of pixels disposed on the insulation substrate, where each pixel has a shape elongated in a horizontal direction, and includes a thin film transistor formation region and a display area; and a reference voltage line extending in a vertical direction along a center of the display area, where the display area includes a single high-gray subpixel area and two low-gray subpixel areas, and the single high-gray subpixel area is positioned between the two low-gray subpixel areas.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Inventors: Cheol SHIN, Hak Sun CHANG, Jang Wi RYU, Jae-Soo JANG, Ki Chul SHIN, Seong Young LEE
  • Patent number: 9632376
    Abstract: A liquid crystal display device includes: a first substrate for which a single pixel includes: first, second and third thin film transistors on the first substrate; a pixel electrode including a first subpixel electrode and a second subpixel electrode which are connected to the first thin film transistor and the second thin film transistor, respectively; and a divided reference voltage line connected to the third thin film transistor; a second substrate facing the first substrate; a common electrode on the second substrate; and a liquid crystal layer between the pixel electrode and the common electrode and including liquid crystal molecules. The third thin film transistor includes an electrically floating gate electrode, a source electrode defined by an extended portion of a terminal of the second thin film transistor, and a drain electrode defined by an extended portion of the divided reference voltage line.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Joo Han, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin