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: 20160103370
    Abstract: A liquid crystal display includes: a flexible first substrate; a pixel electrode positioned on the first substrate and including an outer stem with a quadrangular shape, a crossed-shape stem including a transverse stem positioned inside the outer stem and a longitudinal stem crossing the transverse stem, and a plurality of minute branches extending from the outer stem and the crossed-shape stem; a flexible second substrate facing the first substrate; a common electrode positioned on the second substrate; and a liquid crystal layer including liquid crystal molecules interposed between the first substrate and the second substrate. An angle formed by minute branches of one sub-region of the pixel electrode positioned at second, third and fourth zones and the transverse stem is smaller than an angle formed by minute branches of three other sub-regions of the pixel electrode positioned at the second, third, and fourth zones and the transverse stem.
    Type: Application
    Filed: February 27, 2015
    Publication date: April 14, 2016
    Inventors: Jin Won KIM, Oh Jeong KWON, Hyeok Jin LEE, Ki Chul SHIN
  • Publication number: 20160097957
    Abstract: A liquid crystal display according to an exemplary embodiment of the present system and method includes: a first substrate; a thin film transistor disposed on the first substrate; a passivation layer disposed on the thin film transistor and including a first portion and a second portion thicker than the first portion; a first sub-pixel electrode and a second sub-pixel electrode disposed on the passivation layer, spaced apart from each other, and positioned on one pixel region; a second substrate facing the first substrate; and a liquid crystal layer positioned between the first substrate and the second substrate, wherein the first sub-pixel electrode is disposed on the second portion of the passivation layer, and the second sub-pixel electrode is disposed on the first portion of the passivation layer.
    Type: Application
    Filed: July 21, 2015
    Publication date: April 7, 2016
    Inventors: Sung-Jae YUN, Heung Shik PARK, Oh Jeong KWON, Ki Chul SHIN
  • Publication number: 20160097956
    Abstract: A liquid crystal display including: a lower electrode; an upper electrode facing the lower electrode; and a liquid crystal layer disposed between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned perpendicular to surfaces of the lower electrode and the upper electrode, wherein the lower electrode includes a center electrode disposed at the center thereof, a first cutout disposed at the center of the center electrode, and a plurality of minute branches disposed extending outwardly from a side edge of the center electrode, and the upper electrode includes a second cutout disposed between the minute branches and the first cutout, a third cutout connected to upper and lower vertices of the second cutout to form a boundary among a plurality of sub-regions together with the first cutout and a fourth cutout connected to upper and lower vertices of the second cutout.
    Type: Application
    Filed: May 13, 2015
    Publication date: April 7, 2016
    Inventors: Se Hyun LEE, Jang Wi RYU, Ki Chul SHIN, Cheol SHIN, Hak Sun CHANG
  • Publication number: 20160097955
    Abstract: A liquid crystal display includes a lower electrode, an upper electrode facing the lower electrode, and a liquid crystal layer disposed between the lower electrode and the upper electrode. The lower electrode includes: a center electrode disposed at its center and the center electrode has a polygonal shape including diagonal sides, left and right sides, and upper and lower sides; as first cutout disposed at a center of the center electrode; a plurality of minute branches extending out from the diagonal sides; and a plurality of auxiliary minute branches extending out from the left and right sides. The upper electrode includes a second cutout disposed between the minute branches and the first cutout, and a third cutout connected to the second cutout to form a boundary between a plurality of subregions together with the first cutout, and the left and right sides are inclined at a predetermined angle.
    Type: Application
    Filed: March 19, 2015
    Publication date: April 7, 2016
    Inventors: Ka Eun KIM, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Se Hyun LEE
  • Publication number: 20160097953
    Abstract: A liquid crystal display includes a lower panel electrode including a lower panel unit electrode, an upper panel electrode including an upper panel unit electrode facing the lower panel unit electrode, and a liquid crystal layer between the lower panel electrode and the upper panel electrode and including liquid crystal molecules, where the lower panel unit electrode includes a center electrode disposed at a center thereof, minute branches which extends from an edge side of the center electrode to an outside, and a first cutout is defined in the center of the center electrode, and the a second cutout is defined in the upper panel unit electrode between the minute branches and the first cutout, and a third cutout is connected to the second cutout and defines a boundary between subregions together with the first cutout.
    Type: Application
    Filed: May 20, 2015
    Publication date: April 7, 2016
    Inventors: Hak Sun CHANG, Cheol SHIN, Jang Wi RYU, Ki Chul SHIN, Jae-Soo JANG
  • Patent number: 9274377
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed. A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Eun-Kil Park, Hyun-Ho Kang, Jang Wi Ryu, Seung-Suk Yang, Ki Chul Shin, Se Hyun Lee, Jae-Soo Jang, Hyo Ju Jung
  • Publication number: 20160054628
    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: Application
    Filed: November 3, 2015
    Publication date: February 25, 2016
    Inventors: Hak Sun CHANG, Jang Wi RYU, Ki Chul SHIN, Jae-Soo JANG
  • Publication number: 20160033834
    Abstract: A display according to exemplary embodiments includes: a substrate; a first gate line, a second gate line, and a data line disposed on the substrate; a plurality of pixels including a first subpixel and a second subpixel connected to the first gate line and the data line, the first subpixel including a first subpixel electrode and the second subpixel including a second subpixel electrode; a first switching element connected to the first gate line and a first voltage line, and configured to control a voltage of a first capacitor connected to the first subpixel electrode; a second switching element connected to the second gate line, a second voltage line, and the first capacitor, and configured to control the voltage of the first capacitor; and a third switching element connected to the first gate line, the second subpixel electrode and configured to control the voltage of the second subpixel electrode.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: Hoon KIM, Ki-Chul SHIN, Su-Jeong KIM, Ho-Kil OH, Jae-Hoon JUNG
  • Patent number: 9250473
    Abstract: A display apparatus comprises a display panel, a first polarizing plate and a second polarizing plate. The display panel comprises a first substrate including a pixel electrode, a second substrate opposite to the first substrate, and a liquid crystal layer disposed between a first surface of the first substrate and a first surface of the second substrate. The first polarizing plate comprises a first polarizer having a first polarizing axis, and a first ?/4 phase difference plate having a refractive index between about 1.35 and about 2.05 in a thickness direction. The second polarizing plate comprises a second polarizer having a second polarizing axis crossing the first polarizing axis, and a second ?/4 phase difference plate having a refractive index between about 1.35 and about 2.05 in a thickness direction. Accordingly, light leakage in a side view may be reduced and viewing angle may be improved.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Hyun Kim, Ki-Chul Shin, Seung-Hee Lee, Ji-Hoon Kim, Sang-Jae Kim
  • Publication number: 20160011468
    Abstract: A liquid crystal display including: a substrate; an insulating layer formed on the substrate; a step providing grooves formed on the insulating layer; and a pixel electrode formed on the insulating layer, and configured to include a partial plate electrode and a plurality of minute branch electrodes extending from the partial plate electrode. A sidewall of each of the step providing grooves is perpendicular to a bottom surface, and a planar shape of the step providing grooves is formed of right triangles each having a first side, a second side, and a hypotenuse that connects the first side with the second side, and an angle between the first side and the hypotenuse is 45° or below.
    Type: Application
    Filed: November 24, 2014
    Publication date: January 14, 2016
    Inventors: Se Hyun LEE, Jae-Soo Jang, Ho Kil Oh, Hyo Ju Jung, Ki Chul Shin
  • Publication number: 20150371592
    Abstract: A liquid crystal display including a first substrate, a first sub-pixel electrode on the first substrate and configured to receive a first voltage, a second sub-pixel electrode on the first substrate and configured to receive a second voltage, an insulating layer between the first sub-pixel electrode and the second sub-pixel electrode, a second substrate facing the first substrate, and a common electrode on the second substrate, wherein the first sub-pixel electrode includes a first sub-region below the insulating layer and a second sub-region above the insulating layer, wherein the second sub-region of the first sub-pixel electrode includes a plurality of first branch electrodes, wherein the second sub-pixel electrode is above the insulating layer, and wherein a difference between the first voltage and a common voltage is greater than a difference between the second voltage and the common voltage.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 24, 2015
    Inventors: Jae Hoon Jung, Hyo Sik Kim, Ki Chul Shin, Dan Bi Yang, Ji Phyo Hong
  • Patent number: 9213209
    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: March 15, 2013
    Date of Patent: December 15, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
  • Patent number: 9213205
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate; a first subpixel electrode positioned on the first substrate and configured to receive a first voltage; a second subpixel electrode positioned on the first substrate and configured to receive a second voltage; an insulating layer positioned between the first subpixel electrode and the second subpixel electrode; a second substrate facing the first substrate; and a common electrode positioned on the second substrate. A portion of the first subpixel electrode and a portion of the second subpixel electrode overlap each other with the insulating layer interposed therebetween, and a difference between the first voltage and a common voltage is larger than a difference between the second voltage and the common voltage.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 15, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoon Kim, Su Jeong Kim, Ki Chul Shin, Dan Bi Yang, Jae-Hoon Jung, Min Ju Han, Ji Phyo Hong
  • Patent number: 9201281
    Abstract: A liquid crystal display includes a common electrode for receiving a common voltage. The liquid crystal display further includes a pixel electrode for receiving a data voltage, the pixel electrode being associated with a pixel of the liquid crystal display. The liquid crystal display further includes a switching element electrically connected to the pixel electrode for controlling transmission of the data voltage. The liquid crystal display further includes a liquid crystal layer disposed between the common electrode and the pixel electrode. The liquid crystal display further includes a plate electrode electrically connected to the switching element and including a plate that overlaps the pixel electrode, wherein the pixel electrode spans a larger area than the plate. The pixel electrode and the plate electrode are equipotential.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youn Hak Jeong, Gak Seok Lee, Ki Chul Shin
  • Publication number: 20150323847
    Abstract: A liquid crystal display includes: a first substrate, a second substrate facing the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate and including liquid crystal molecules, a gate line positioned on the first substrate, a data line positioned on the first substrate and crossing the gate line, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a third thin film transistor connected to the gate line and the second thin film transistor, a reference voltage line connected to the third thin film transistor, and a pixel electrode including a first subpixel electrode connected to the first thin film transistor and a second subpixel electrode connected to the second thin film transistor.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Inventors: Su-Jeong KIM, Ki-Chul SHIN, Hoon KIM, Hyung-Guel KIM, Joo-Seok YEOM, Jae-Jin SONG, Ho-Kil OH, Yoon-Jang KIM, Jae-Hoon JUNG, Kwang-Chul JUNG
  • Publication number: 20150323845
    Abstract: A liquid crystal display includes a lower substrate and an upper substrate facing each other, a liquid crystal layer provided between the lower substrate and the upper substrate, a plurality of pixel electrodes provided on the lower substrate, extended in a substantially horizontal direction, and including a thin film transistor forming region and a display area, a reference voltage line extended in a substantially vertical direction along a center of the display area, a gate line provided on the lower substrate and extended in the substantially horizontal direction between neighboring pixel electrodes of the plurality of pixel electrodes, a data line provided on the lower substrate and crossing the gate line, and a shield electrode overlapping the gate line and including a curved portion which is disposed on an edge portion of the pixel electrode and overlaps the data line.
    Type: Application
    Filed: November 3, 2014
    Publication date: November 12, 2015
    Inventors: Hak Sun CHANG, Ka Eun KIM, Jang Wi RYU, Ki Chul SHIN
  • Publication number: 20150316821
    Abstract: A liquid crystal display including a first substrate, a pixel electrode on the first substrate and including a first subpixel electrode and a second subpixel electrode separated from the first subpixel electrode, a second substrate facing the first substrate, a common electrode on the second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein the first subpixel electrode includes a first plate-shaped portion and first branch electrodes extending from the first plate-shaped portion, wherein the second subpixel electrode includes a second plate-shaped portion configured to enclose surroundings of the first branch electrode and second branch electrodes extending from the second plate-shaped portion, and wherein a difference between a first voltage applied to the first subpixel electrode and a common voltage applied to the common electrode is larger than a difference between a second voltage applied to the second subpixel electrode and the common voltage.
    Type: Application
    Filed: April 23, 2015
    Publication date: November 5, 2015
    Inventors: Se Hyun Lee, Ka Eun Kim, Ki Chul Shin, Ho Kil Oh, Hak Sun Chang
  • Publication number: 20150309375
    Abstract: A liquid crystal display includes: a first substrate; a pixel electrode on the first substrate and including a first subpixel electrode and a second subpixel electrode which are separated from each other; a second substrate facing the first substrate; a common electrode on the second substrate; and a liquid crystal layer between the first substrate and the second substrate, in which the first subpixel electrode includes a first plate-shaped portion and a plurality of first branch electrodes extended from the first plate-shaped portion, the second subpixel electrode includes a second plate-shaped portion surrounds the first branch electrodes and a plurality of second branch electrodes extended from the second plate-shaped portion, and a difference between a first voltage applied to the first subpixel electrode and a common voltage applied to the common electrode is larger than a difference between a second voltage applied to the second subpixel electrode and the common voltage.
    Type: Application
    Filed: April 24, 2015
    Publication date: October 29, 2015
    Inventors: Hak Sun Chang, Cheol Shin, Jae-Soo Jang, Ki Chul Shin, Jang Wi Ryu, Ho Kil Oh, Ka Eun Kim, Se Hyun Lee, Hyo Ju Jung
  • Patent number: 9158159
    Abstract: A liquid crystal display panel includes a lower substrate, an upper substrate and a liquid crystal layer. The lower substrate includes a first base substrate and a pixel electrode formed on the first base substrate. The first base substrate includes a first sub pixel area and a second sub pixel area. The upper substrate includes a second base substrate and a common electrode formed on the second base substrate. The liquid crystal layer is interposed between the lower substrate and the upper substrate, and includes a first polymer disposed in the first sub pixel area and a second polymer disposed in the second pixel area. The first polymer has a first pre-tilt, and the second polymer has a second pre-tilt different from the first pre-tilt. Thus, a display quality of a liquid crystal display apparatus including the liquid crystal display panel may be enhanced.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoon Kim, Ki-Chul Shin, Tae-Hoon Yoon, Ki-Han Kim, Sun-Wook Choi
  • Publication number: 20150268518
    Abstract: A liquid crystal display including a first substrate, a pixel electrode on the first substrate and including a first subpixel electrode and a second subpixel electrode separated from each other and located in one pixel area, a second substrate facing the first substrate, a common electrode on the second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein a first voltage applied to the first subpixel electrode is higher than a second voltage applied to the second subpixel electrode, wherein the first subpixel electrode includes first branch electrodes, the second subpixel electrode includes second branch electrodes, the second subpixel electrode is located around the pixel area to enclose the first subpixel electrode, wherein the first branch electrodes and the second branch electrodes face each other in a boundary portion of the first subpixel electrode and the second subpixel electrode.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 24, 2015
    Inventors: Dong-Chul Shin, Oh Jeong Kwon, Heung Shik Park, Sung-Jae Yun, Su Jin Kim, Jae Hong Park, Ki Chul Shin, Joo Young Yoon, Hyeok Jin Lee