Patents by Inventor Sang-Myoung LEE

Sang-Myoung 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).

  • Patent number: 9733502
    Abstract: An exemplary embodiment provides a curved display device in which occurrences of black mura are prevented or otherwise reduced. The curved display device according to the exemplary embodiment includes a curved display panel displaying images; a rear surface cover covering and supporting a rear surface of the curved display panel; and a flexible front surface chassis supporting the curved display panel.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Myoung Lee, Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Tae Kyung Yim
  • Publication number: 20170227824
    Abstract: A curved liquid crystal display includes a first panel having a pixel electrode including crossed stem parts, a plurality of fine branch parts extending from the crossed stem parts, and fine slits positioned between fine branch parts adjacent to each other, a second panel having a common electrode, and a liquid crystal layer between the first panel and the second panel. Misalignment between the first panel and the second lower panel is determined and a pitch, which is a sum of a width of the fine branch part and a width of the fine slit, gradually increases from a region having a small misalignment toward a region having a large misalignment.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Hyun-Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON, Sang-Myoung LEE, Tae Kyung YIM
  • Patent number: 9698161
    Abstract: A display device may include these elements: a first data line; a second data line; a first subpixel electrode positioned at a first half of the display device, connected to the first data line, and comprising a first member and a second member, the first member extending parallel to the first data line, the second member connecting directly to and extending perpendicular to the first member; and a second subpixel electrode positioned at a second half of the display device, connected to the second data line, and comprising a third member and a fourth member, the third member extending parallel to the second data line, the fourth member connecting directly to and extending perpendicular to the third member, wherein the second member and the fourth member are aligned and are positioned between the first member and the third member in a layout view of the display device.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: July 4, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, O Sung Seo, Su Wan Woo, Sang-Myoung Lee
  • Patent number: 9691788
    Abstract: A display device according to an exemplary embodiment includes: a first insulation substrate; a thin film transistor disposed on the first insulation substrate; and a pixel electrode coupled to the thin film transistor. The pixel electrode includes a first subpixel electrode that is divided into two regions configured to arrange liquid crystal molecules while including one first horizontal stem portion, and a second subpixel electrode that includes a plurality of second horizontal stem portions.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ha Won Yu, Hyun Ho Kang, O Sung Seo, Seung Jun Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang Myoung Lee, Tae Kyung Yim
  • Patent number: 9684209
    Abstract: A curved liquid crystal display according to an exemplary embodiment of the present system and method includes: a first substrate; a first thin film display layer disposed at an upper surface of the first substrate; a second substrate; a second thin film display layer disposed at a lower surface of the second substrate; a sealant disposed at an edge of the first substrate and the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate and sealed by the sealant, wherein the first thin film display layer and the second thin film display layer face each other, the first substrate and the second substrate are curved to have the same degree of curvature, and a thickness of a side surface of the second substrate is thinner than a thickness of a center portion of the second substrate.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: June 20, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ha Won Yu, Tae Kyung Yim, Hyun Ho Kang, O Sung Seo, Seung Jun Yu, Ki Kyung Youk, Sang Myoung Lee
  • Patent number: 9664940
    Abstract: A display panel includes a base substrate, a driving circuit, and a roof layer defining a cavity. A color filter is disposed on the base substrate to at least partially cover the driving circuit. The color filter is disposed at least on a pixel area and includes a depression positioned at least partially within a circuit area. A black matrix is disposed upon the depression of the color filter. The black matrix being upon the depression allows an inlet portion of the cavity to remain greater than a certain cross-sectional area.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kipyo Hong, Jae Hwa Park, Sang-Myoung Lee, Hyunggi Jung, Sunghwan Won
  • Patent number: 9645452
    Abstract: A curved liquid crystal display includes a first panel having a pixel electrode including crossed stem parts, a plurality of fine branch parts extending from the crossed stem parts, and fine slits positioned between fine branch parts adjacent to each other, a second panel having a common electrode, and a liquid crystal layer between the first panel and the second panel. Misalignment between the first panel and the second lower panel is determined and a pitch, which is a sum of a width of the fine branch part and a width of the fine slit, gradually increases from a region having a small misalignment toward a region having a large misalignment.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 9, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang-Myoung Lee, Tae Kyung Yim
  • Publication number: 20170123281
    Abstract: A display device according to an exemplary embodiment of the present invention includes a flexible first substrate including a display area, and a non-display area around the display area, a first piezoelectric material layer—at one side of the first substrate, an intermediate electrode layer contacting the first piezoelectric material layer, a piezoelectric material layer driver coupled to the intermediate electrode layer, and configured to apply a driving voltage to the intermediate electrode layer to form an electric field at the first piezoelectric material layer, a thin film transistor at one side of the first substrate, and a pixel electrode connected to the thin film transistor.
    Type: Application
    Filed: June 22, 2016
    Publication date: May 4, 2017
    Inventors: Sang-Myoung LEE, Woong Kwon KIM, Bum Ki BAEK, Seung Ki SONG, Kang-Young LEE, Seong Jun HWANG
  • Patent number: 9588383
    Abstract: A display device includes a transistor, a data line, a pixel electrode, a common electrode, and a liquid crystal layer. The data line is connected to a source electrode of the transistor. A geometric radius of curvature associated with the display device is perpendicular to the data line. The pixel electrode is connected to a drain electrode of the transistor and includes a plate electrode. Sides of the plate electrode are oriented at acute angles with respect to the data line in a plan view associated with the display device. The common electrode overlaps the pixel electrode and has a slit. The slit has a first edge and a second edge. The first edge is perpendicular to the data line in the plan view and is longer than the second edge. The liquid crystal layer is positioned between the pixel electrode and the common electrode.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Il Kim, Sang-Myoung Lee, Yeo Geon Yoon, Hyun-Ho Kang, Un Byoll Ko, Sei-Yong Park, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Jung Wook Lee, Sung Hee Hong
  • Publication number: 20170059943
    Abstract: Embodiments relate to a liquid crystal display and a manufacturing method thereof, and more particularly, to a liquid crystal display including an alignment layer pattern and a manufacturing method thereof. The liquid crystal display includes a lower panel including a first alignment layer and a signal line. An upper panel faces the lower panel and uncovers an end portion of the signal line of the lower panel. A sealant is positioned between the lower panel and the upper panel and couples the lower panel and the upper panel with each other. The first alignment layer includes a coated region positioned between a first removed region overlapping the end portion of the signal line and a second removed region overlapping the sealant. The first alignment layer does not exist in the first removed region and the second removed region.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Sang-Myoung LEE, Seung Jun YU, Do Yeong PARK, Young Goo SONG, Sang Woo WHANGBO
  • Patent number: 9524990
    Abstract: A display device including: a substrate including first and second sides which face and are parallel to each other, and third and fourth sides which are orthogonal to the first and second sides, and face each other; a gate driver and a data driver disposed along the first side of the substrate; a first diagonal gate line, which is extended in a first direction crossing directions in which the first to fourth sides are extended, and has both ends heading the second and fourth sides of the substrate; a gate pad part extended from one end of the first diagonal gate line adjacent to the second side; an insulation layer including an opening for exposing at least a partial area of the gate pad part and formed on the substrate; a redundancy line extended in a second direction parallel to a direction in which the third and fourth sides are extended, and connected to the gate driver; and a redundancy pad part extended from the redundancy line to be in direct contact with the gate pad part exposed through the opening.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 20, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong-gun Chong, O-Sung Seo, Seung-Jun Yu, Sang-Myoung Lee, Hyoung-Cheol Lee
  • Publication number: 20160343731
    Abstract: A method of manufacturing a display panel assembly includes: preparing a mother substrate on which are defined first regions and dummy regions respectively between adjacent first regions; forming pixel driving lines and pixels connected to the pixel driving lines on each of the first regions in a same process at the same time as forming circuit connection lines on each of the dummy regions; connecting a driving element which drives the pixels to the circuit connection lines of the dummy regions; dividing the mother substrate to separate the first regions and the dummy regions from each other, each of the separated first regions defining a thin film transistor board of the display panel assembly, and each of the separated dummy regions defining a driving circuit board of the display panel assembly; and connecting the driving circuit board to the thin film transistor board.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Inventors: Sang-myoung LEE, Osung SEO, Seungjun YU
  • Patent number: 9494828
    Abstract: Embodiments relate to a liquid crystal display and a manufacturing method thereof, and more particularly, to a liquid crystal display including an alignment layer pattern and a manufacturing method thereof. The liquid crystal display includes a lower panel including a first alignment layer and a signal line. An upper panel faces the lower panel and uncovers an end portion of the signal line of the lower panel. A sealant is positioned between the lower panel and the upper panel and couples the lower panel and the upper panel with each other. The first alignment layer includes a coated region positioned between a first removed region overlapping the end portion of the signal line and a second removed region overlapping the sealant. The first alignment layer does not exist in the first removed region and the second removed region.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Myoung Lee, Seung Jun Yu, Do Yeong Park, Young Goo Song, Sang Woo Whangbo
  • Publication number: 20160320676
    Abstract: A liquid crystal display according to an exemplary embodiment of the present disclosure includes: a first substrate; a gate line formed on the first substrate and extended in a first direction; a data line extended in a second direction that is perpendicular to the gate line; switching elements connected to the gate line and the data line; a voltage-dividing reference voltage line connected to a switching element; a first sub-pixel electrode connected to a switching element; and a second sub-pixel electrode connected to a switching element, wherein the first sub-pixel electrode and the second sub-pixel electrode include one or more vertical stem parts formed on a left side or a right side thereof, and the voltage-dividing reference voltage line is formed to be parallel to the data line.
    Type: Application
    Filed: March 4, 2016
    Publication date: November 3, 2016
    Inventors: Sang-Myoung LEE, Hyun-Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON
  • Publication number: 20160320646
    Abstract: A liquid crystal display according to an exemplary embodiment includes a display substrate including a display area for displaying an image and a non-display area enclosing the display area; a plurality of normal pixels formed in an edge region among a center region of the display area and a peripheral area of the display area, and a plurality of corner pixels formed in a corner region of the peripheral area of the display area; and a sealant formed in the non-display area. A corner pixel of the plurality of corner pixels and the sealant are separated from each other.
    Type: Application
    Filed: February 8, 2016
    Publication date: November 3, 2016
    Inventors: Sang-Myoung LEE, Seung Jun YU, O Sung SEO, Joong Gun CHONG
  • Publication number: 20160299388
    Abstract: A display device may include a first transistor, a second transistor, a third transistor, a data line, a pixel electrode member, and a reference voltage line. The first transistor includes a first source and a first drain. The second transistor includes a second source and a second drain. The third transistor includes a third drain. The data line is electrically connected to each of the first source and the second source. The pixel electrode member is electrically connected to the first drain. The reference voltage line is electrically connected to the third drain and includes a first bar and a second bar. The pixel electrode member overlaps both the first bar and the second bar. The first bar extends perpendicular to the data line. The second bar extends parallel to the data line and is directly connected to a center portion of the first bar.
    Type: Application
    Filed: April 7, 2016
    Publication date: October 13, 2016
    Inventors: Sang-Myoung LEE, Hyun-Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON
  • Publication number: 20160274409
    Abstract: A curved display device includes a first substrate curved along a first direction and comprising pixel areas defined therein, a second substrate coupled to the first substrate and curved together with the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate and comprising liquid crystal molecules, and a light blocking member disposed on the first substrate or the second substrate to block a light, where domains are defined in each of the pixel areas and arranged in a second direction crossing the first direction, the domains are arranged in a matrix form in the pixel areas, and the light blocking member includes a first light blocking layer having a first width and a second light blocking layer having a second width greater than the first width.
    Type: Application
    Filed: February 2, 2016
    Publication date: September 22, 2016
    Inventors: Hyun-ho KANG, Osung SEO, Seungjun YU, Hawon YU, Kikyung YOUK, Yeogeon YOON, Sang-myoung LEE, Taekyung YIM
  • Patent number: 9437621
    Abstract: A method of manufacturing a display panel assembly includes: preparing a mother substrate on which are defined first regions and dummy regions respectively between adjacent first regions; forming pixel driving lines and pixels connected to the pixel driving lines on each of the first regions in a same process at the same time as forming circuit connection lines on each of the dummy regions; connecting a driving element which drives the pixels to the circuit connection lines of the dummy regions; dividing the mother substrate to separate the first regions and the dummy regions from each other, each of the separated first regions defining a thin film transistor board of the display panel assembly, and each of the separated dummy regions defining a driving circuit board of the display panel assembly; and connecting the driving circuit board to the thin film transistor board.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-myoung Lee, Osung Seo, Seungjun Yu
  • Publication number: 20160249464
    Abstract: An exemplary embodiment provides a curved display device in which occurrences of black mura are prevented or otherwise reduced. The curved display device according to the exemplary embodiment includes a curved display panel displaying images; a rear surface cover covering and supporting a rear surface of the curved display panel; and a flexible front surface chassis supporting the curved display panel.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Inventors: Sang-Myoung LEE, Hyun-Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON, Tae Kyung YIM
  • Publication number: 20160238908
    Abstract: A display device includes a transistor, a data line, a pixel electrode, a common electrode, and a liquid crystal layer. The data line is connected to a source electrode of the transistor. A geometric radius of curvature associated with the display device is perpendicular to the data line. The pixel electrode is connected to a drain electrode of the transistor and includes a plate electrode. Sides of the plate electrode are oriented at acute angles with respect to the data line in a plan view associated with the display device. The common electrode overlaps the pixel electrode and has a slit. The slit has a first edge and a second edge. The first edge is perpendicular to the data line in the plan view and is longer than the second edge. The liquid crystal layer is positioned between the pixel electrode and the common electrode.
    Type: Application
    Filed: June 25, 2015
    Publication date: August 18, 2016
    Inventors: Jang-Il KIM, Sang-Myoung LEE, Yeo Geon YOON, Hyun-Ho KANG, Un Byoll KO, Sei-Yong PARK, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Jung Wook LEE, Sung Hee HONG