Patents by Inventor Se-Hyun Lee

Se-Hyun Lee 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: 20170045784
    Abstract: A curved liquid crystal display includes an upper curved substrate; a lower curved substrate; a liquid crystal layer including liquid crystal molecules having negative dielectric anisotropy and between the upper and lower curved substrates; an upper curved liquid crystal alignment layer between the liquid crystal layer and the upper curved substrate; a lower curved liquid crystal alignment layer between the liquid crystal layer and the lower curved substrate. In a first region, a content of a reactive mesogen polymer per unit area of the lower curved liquid crystal alignment layer is higher that of the upper curved liquid crystal alignment layer, and in a second region, the content of the reactive mesogen polymer per unit area of the upper curved liquid crystal alignment layer is higher than that of the lower curved liquid crystal alignment layer.
    Type: Application
    Filed: April 11, 2016
    Publication date: February 16, 2017
    Inventors: Jae Soo JANG, Se Hyun LEE, Ki Chul SHIN
  • Patent number: 9568783
    Abstract: Provided is a liquid crystal display including: a first insulation substrate; a thin film transistor positioned on the first insulation substrate; a first subpixel electrode positioned on the thin film transistor and to which a first voltage is applied; a second subpixel electrode positioned on the thin film transistor and to which a second voltage is applied; a second insulation substrate facing the first insulation substrate; a common electrode positioned on the second insulation substrate and receiving a common voltage; and a liquid crystal layer disposed between the first insulation substrate and the second insulation substrate, in which the first subpixel electrode includes a plate region and a minute branch region overlapping the plate region with a passivation layer between the plate region and the minute branch region, and the plate region and the second subpixel electrode are positioned on a same layer.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyun Lee, Ka Eun Kim, Cheol Shin, Hak Sun Chang, Ki Chul Shin
  • Patent number: 9547203
    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: Grant
    Filed: April 23, 2015
    Date of Patent: January 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyun Lee, Ka Eun Kim, Ki Chul Shin, Ho Kil Oh, Hak Sun Chang
  • Publication number: 20170010487
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Jang Wi RYU, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Jae-Soo JANG, Ka Eun KIM, Ho Kil OH, Se Hyun LEE, Hyo Ju JUNG, Sang Hyeon SONG, Sang Jin JEON
  • Patent number: 9540644
    Abstract: The present invention relates to a small interference RNA (siRNA) for specifically inhibiting the expression of ribosomal protein in cells, and more particularly, to an siRNA that specifically inhibits the expression of endogenous rpS3 protein in cells without influencing tagged overexpressed protein. The siRNAs of the present invention are excellent in terms of economy and efficiency compared to conventional commercially available products.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 10, 2017
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Joon Kim, Hag Dong Kim, Se Hyun Lee, Hee-Woong Yang
  • Patent number: 9541804
    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 left and right vertices of the second cutout.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyun Lee, Jang Wi Ryu, Ki Chul Shin, Cheol Shin, Hak Sun Chang
  • Publication number: 20170003549
    Abstract: A liquid crystal display includes: a first panel including a first electrode; a second panel including a second electrode; and a liquid crystal layer between the first and second panels. The first electrode includes: a central electrode disposed in a central region of a pixel; an outer electrodes extending along a side of the central electrode; and a connection electrode which connects the outer electrode and the central electrode. A slit pattern is defined in the first electrode around the central electrode, and a liquid crystal control pattern is defined in the first electrode in a corner region of the pixel. Horizontal and vertical incisions, which divide the first electrode into a plurality of domains, are defined in the second electrode, an end portion of the outer electrode is disposed to correspond to the corner region, and the end portion of the outer electrode extends farther than the central electrode.
    Type: Application
    Filed: June 13, 2016
    Publication date: January 5, 2017
    Inventors: Se Hyun LEE, Ik Han OH, Youn Hak JEONG, Ki Pyo HONG, Wan NAMGUNG, Ho Jun LEE, Dong Chul SHIN
  • Publication number: 20160377933
    Abstract: A liquid crystal display includes a first panel including a first electrode which includes a central electrode disposed in a central region of a pixel, a micro-branch part extending in a direction from at least one side of the central electrode, a peripheral electrode connected to an end of part of the micro-branch part, and a corner pattern provided in a corner region of the pixel, a second panel including horizontal and vertical incision parts which divide the micro-branch part, the central electrode and the peripheral electrode of the first electrode into a plurality of domains and a second electrode which is divided corresponding to plurality of domain regions, and where in the first panel, the peripheral electrode adjacent to the corner pattern is disposed on at least one of an edge region of the pixel in a direction parallel to the horizontal or vertical incision part.
    Type: Application
    Filed: January 8, 2016
    Publication date: December 29, 2016
    Inventors: Ik Han Oh, Seong Young Lee, Se Hyun Lee, Hyung Jun Park, Youn Hak Jeong
  • Publication number: 20160377922
    Abstract: A liquid crystal display includes a first substrate, a first electrode which is disposed on the first substrate, and which includes a stem part for dividing a pixel into a plurality of domains, a plurality of micro branch parts extending in one direction from at least one stem of the stem part, and a peripheral bundle electrode connected to an end of at least one of the micro branch parts and disposed along an edge of the pixel, a first panel including protrusions arranged along an outer circumference of the peripheral bundle electrode and projected in the direction vertical to the first substrate, a second substrate, a second panel including a second electrode which is disposed on the second substrate and which faces the first electrode, and a liquid crystal layer which is interposed between the first panel and the second panel and which includes liquid crystals.
    Type: Application
    Filed: December 4, 2015
    Publication date: December 29, 2016
    Inventors: Ik Han OH, Se Hyun LEE, Wan NAMGUNG, Ho Jun LEE, Youn Hak JEONG, Ki Pyo HONG
  • Publication number: 20160377940
    Abstract: A liquid crystal display includes a first panel including a first substrate, a first electrode which is disposed on the first substrate and which includes a stem unit including a horizontal stem and a vertical stem dividing a pixel into domains, a branch unit including branch electrodes and extending from at least one stem of the stem unit in one direction, and an external bundling electrode unit connected to an end of at least one of the branch electrodes and disposed along an edge of the pixel, a first slit pattern which is defined in the branch unit, a second slit pattern which contacts the vertical stem and is disposed parallel to the horizontal stem, a third slit pattern which contacts the horizontal stem and is disposed parallel to the vertical stem, and a protrusion unit which is disposed on an outer circumference of the external bundling electrode unit.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 29, 2016
    Inventors: Se Hyun LEE, Ik Han OH, Wan NAMGUNG, Ho Jun LEE, Youn Hak JEONG, Ki Pyo HONG
  • Publication number: 20160377941
    Abstract: A liquid crystal display includes a substrate, and a pixel electrode disposed on the substrate. The pixel electrode includes a plurality of micro-branches which are spaced apart from each other and extend side by side with each other, where a micro-slit is defined between the micro-branches, and a stem part which is connected to each of the micro-branches, where an indentation pattern is defined by a cutout portion extending into the stem part, and at least one of two points connecting the indentation pattern and the micro-slit is located on a slit boundary line at which the micro-slit and the stem part meet each other.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 29, 2016
    Inventors: Se Hyun LEE, Cheol SHIN, Hak Sun CHANG
  • Patent number: 9523877
    Abstract: A liquid crystal display device includes: a first insulation substrate, a color filter disposed on the first insulation substrate and including a stepped region, a passivation layer disposed on the color filter and including an opening region overlapping with the stepped region, a pixel electrode disposed on the passivation layer including the opening region, a second insulation substrate facing the first insulation substrate, a common electrode disposed on the second insulation substrate and including a cross-shaped cutout, and a liquid crystal layer disposed between the first and second insulation substrates.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: December 20, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Se Hyun Lee, Hyo Ju Jung, Ki Chul Shin, Ho Kil Oh, Hak Sun Chang
  • Publication number: 20160363823
    Abstract: A liquid crystal display includes a first panel including a first electrode, which includes side electrodes in edge areas of a pixel, a central electrode connected to the side electrodes and disposed in a central area of the pixel, and fine branches, some of which are connected to the side electrode, a second panel in which a cutout, which corresponds to the first electrode and divides the fine branches, the central electrode and the side electrode into domains is defined, and which includes a second electrode, which is separated by the cutout and corresponds to each of the domains, where second slit patterns, which are provided by partially cutting out ends of the fine branches, separate the side electrodes and the fine branches from each other, and extend in parallel to a longitudinal direction of the side electrodes are defined in the first panel.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 15, 2016
    Inventors: Se Hyun LEE, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN
  • Publication number: 20160342040
    Abstract: A display device may include a liquid crystal layer and a pixel electrode that overlaps the liquid crystal layer. The pixel electrode may include a first bar, a second bar, a third bar, and a plurality of first-type branches. The second bar may be directly connected to a first end of the first bar. The third bar may be directly connected to a first end of the second bar or directly connected to a second end of the first bar. The first-type branches may be slanted with respected to the first bar and may be positioned between the third bar and at least one of the first bar and the second bar.
    Type: Application
    Filed: November 4, 2015
    Publication date: November 24, 2016
    Inventors: Se Hyun LEE, Hak Sun CHANG, Cheol SHIN
  • Patent number: 9500917
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
  • Patent number: 9482909
    Abstract: A liquid crystal display according to an embodiment includes: a lower panel including a pixel electrode having a first subpixel electrode and a second subpixel electrode and an insulating layer between the first subpixel electrode and the second subpixel electrode; an upper panel including a common electrode; and a liquid crystal layer disposed between the lower panel and the upper panel. The first subpixel electrode includes a first plate portion, a first stem having a cross portion extending from the first plate portion and a protrusion extending from the cross portion, and a plurality of first branches extending from the first plate portion and the first stem. The second subpixel electrode includes a second plate portion having an opening and a plurality of second branches extending from the second plate portion. The cross portion does not overlap with the second plate portion. The protrusion overlaps with the second plate portion.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyun Lee, Hak Sun Chang, Ki Chul Shin, Jang Wi Ryu, Cheol Shin, Ho Kil Oh
  • Publication number: 20160291410
    Abstract: A liquid crystal display includes a first substrate, a first pixel electrode disposed on the first substrate, a second pixel electrode overlapping the first pixel electrode, having an insulating layer disposed therebetween, wherein the second pixel electrode includes a plate-like part having an integrated shape, a plurality of branch electrodes extending from the plate-like part, and a cruciform cutout including a horizontal part and a vertical part intersecting each other at a center of the plate-like part, and the first pixel electrode includes a cruciform stem electrode having a horizontal stem and a vertical stem intersecting each other at the center.
    Type: Application
    Filed: November 11, 2015
    Publication date: October 6, 2016
    Inventors: Se Hyun LEE, Ka Eun KIM, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN
  • Patent number: 9437625
    Abstract: A display panel includes a first pixel electrode electrically connected to a first switching electrode, and includes a plurality of first branches forming micro slits, a second pixel electrode electrically connected to a second switching electrode, and including a plurality of second branches forming micro slits, and a third pixel electrode electrically connected to a third switching electrode, and including a plurality of third branches forming micro slits. The first branches are spaced apart from each other by a first space, and have a first width. The second branches are spaced apart from each other by a second space, and have a second width. The third branches are spaced apart from each other by a third space, and have a third width. At least one of the first width, the second width and the third width is different from the other widths.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ka-Eun Kim, Jang-Wi Ryu, Ho-Kil Oh, Se-Hyun Lee, Ki-Chul Shin
  • Publication number: 20160216573
    Abstract: An exemplary embodiment of the present system and method provides a liquid crystal display including: a first substrate; a first electrode formed on the first substrate; a second substrate configured to face the first substrate; and a second electrode formed on the second substrate, wherein the first electrode includes a first portion having a plate shape and a plurality of branch electrodes extended from the first portion, the second electrode includes a cross-shaped cutout including a horizontal stem and a vertical stem that cross each other at a center thereof, and the vertical stem of the cross-shaped cutout includes a first portion having a width that is increased from an end of the first portion of the vertical stem toward the center.
    Type: Application
    Filed: December 11, 2015
    Publication date: July 28, 2016
    Inventors: Ka Eun KIM, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Se Hyun LEE
  • Publication number: 20160208029
    Abstract: Disclosed are an apparatus and a method for removing halogens generated during the preparation of polybutene, which are capable of improving the utilization of polybutene and light polymers by removing halogen components contained in the polybutene and the light polymers. The method for removing halogens generated during the preparation of polybutene comprises the steps of: preparing a reaction product by supplying a catalyst and a reaction raw material to a reactor and polymerizing; removing a catalyst component from the reaction product and neutralizing; separating the reaction product into an organic compound and impurities comprising the catalyst component; heating the organic compound to distill an unreacted material; and removing a halogen component in a remaining polymerization mixture after the distillation using a halogen removing catalyst, or removing a halogen component in polybutene and light polymers obtained from the polymerization mixture using the halogen removing catalyst.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 21, 2016
    Inventors: Myeong Seok KIM, Min Sup PARK, Hyung Jae SEO, Se Hyun LEE