Patents by Inventor Sang Hwan Lee

Sang Hwan 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: 20210179446
    Abstract: An IoT-based system for measurement of contamination distribution of contaminated groundwater through real-time monitoring of a contamination degree of a contaminated groundwater well for control of a contaminated groundwater purification device and prediction of a purification period based on the measurement result.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 17, 2021
    Applicants: HYORIM Co., Ltd.
    Inventors: Sung Kook Cho, Seong Ghui Cho, Myeong Gwang Oh, Sang Hwan Lee
  • Patent number: 11016344
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other, a driver connecting line disposed on the first display panel, a driving circuit part connected to the driver connecting line, a backlight unit disposed adjacent to the first display panel, a reinforcing part overlapping the driver connecting line and disposed adjacent to at least one side of the second display panel, a second polarizer disposed on the second display panel, and a film layer disposed on the second polarizer and the reinforcing part. The second polarizer overlaps a top surface of the second display panel and does not overlap a top surface of the reinforcing part.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Jeon, Sang Hwan Lee, Ki Seok Cha
  • Patent number: 10754211
    Abstract: A display device includes: a first substrate including a planar display area and a planar non-display area; a pad disposed beneath the first substrate in the non-display area; a target checking portion disposed beneath the first substrate in the non-display area and including at least a part of an area provided with the pad; and a light-blocking pattern disposed in the non-display area on the first substrate to cover the target checking portion and containing a discoloring material.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 25, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Lee, Ju Hyun Shin, Seong Hyun Go, Jong Chul Choi
  • Publication number: 20190271881
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other, a driver connecting line disposed on the first display panel, a driving circuit part connected to the driver connecting line, a backlight unit disposed adjacent to the first display panel, a reinforcing part overlapping the driver connecting line and disposed adjacent to at least one side of the second display panel, a second polarizer disposed on the second display panel, and a film layer disposed on the second polarizer and the reinforcing part. The second polarizer overlaps a top surface of the second display panel and does not overlap a top surface of the reinforcing part.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventors: Jae-Hwan JEON, Sang Hwan LEE, Ki Seok CHA
  • Patent number: 10353138
    Abstract: A display device may include a display panel having a curved shape, a first printed circuit board and a second printed circuit board, at least one first carrier tape configured to connect the first printed circuit board to the display panel, at least one second carrier tape configured to connect the second printed circuit board to the display panel, and a connection unit configured to connect the first and second printed circuit boards to each other. A part of a layer of the connection unit may be a portion of a layer included in at least one of the first and second printed circuit boards.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: July 16, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Dong Park, Hyeok Tae Kwon, Sang Hwan Lee, Ki Seok Cha
  • Patent number: 10295862
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other, a driver connecting line disposed on the first display panel, a driving circuit part connected to the driver connecting line, a backlight unit disposed adjacent to the first display panel, a reinforcing part overlapping the driver connecting line and disposed adjacent to at least one side of the second display panel, a second polarizer disposed on the second display panel, and a film layer disposed on the second polarizer and the reinforcing part. The second polarizer overlaps a top surface of the second display panel and does not overlap a top surface of the reinforcing part.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: May 21, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Jeon, Sang Hwan Lee, Ki Seok Cha
  • Patent number: 10034369
    Abstract: A display apparatus includes a display panel including a first substrate and a second substrate opposite to the first substrate, the first substrate including a switching element and a pixel electrode electrically connected to the switching element, and a display panel driver including a gate driver which outputs a gate signal to a gate line of the display panel, the gate line electrically connected to the switching element and extending in a first direction, and a data driver which outputs a data signal to a data line of the display panel and including data driving chips, the data line electrically connected to the switching element and extending in a second direction crossing the first direction, where each of the data driving chips includes a chip body, and a stress reliever extending from the chip body in a direction having an acute angle to the first and second directions.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Dong Park, Sang-Hwan Lee, Jae-Hwan Jeon
  • Publication number: 20180081225
    Abstract: A display device includes: a first substrate including a planar display area and a planar non-display area; a pad disposed beneath the first substrate in the non-display area; a target checking portion disposed beneath the first substrate in the non-display area and including at least a part of an area provided with the pad; and a light-blocking pattern disposed in the non-display area on the first substrate to cover the target checking portion and containing a discoloring material.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 22, 2018
    Inventors: Sang Hwan LEE, Ju Hyun SHIN, Seong Hyun GO, Jong Chul CHOI
  • Patent number: 9766760
    Abstract: A liquid crystal display device includes a backlight assembly, a liquid crystal display panel, a capacitive type touch function key, a cover film and a receiving container. The backlight assembly is configured to generate light. The liquid crystal display panel is disposed on the backlight assembly. The liquid crystal display panel includes an array substrate and an opposing substrate facing the array substrate. The capacitive type touch function key is disposed adjacent to a side surface of one of the array substrate and the opposing substrate. The cover film overlaps the liquid crystal display panel and the capacitive type touch function key. The receiving container receives the backlight assembly, the liquid crystal display panel and the capacitive type touch function key.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hwan Jeon, Jeong-Young Kim, Len Kaplan, Sung-Dong Park, Sang-Hwan Lee, Young-Suk Cho, Ki-Seok Cha
  • Patent number: 9671574
    Abstract: An optical integrated circuit comprises optical waveguides, grooves formed by etching the upper cladding layer, the core layer and all or parts of the lower cladding layer close to a end section of the optical waveguide to intercept light transmitted through the core layer of the optical waveguide or to couple light into the core layer, a plurality of bonding pads formed around the groove, micro-mirrors and active optical elements. Such a PLC based optical integrated circuit and a method of manufacturing the same provides a low-cost manufacturing of optical integrated circuits and high quality mirrors for vertical optical coupling scheme.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: June 6, 2017
    Assignee: Wooriro Co., Ltd.
    Inventors: Sang Hwan Lee, Chan Yong Park, Young Hye Kim
  • Patent number: 9658390
    Abstract: A backlight unit includes a light source unit which has a curved shape, a light guide plate including a curved light incident surface on which light emitted from the light source unit is incident, and a light source cover which has a curved shape corresponding to the curved light incident surface and is configured to surround one side of the light guide plate to dispose the light source unit and the light incident surface inside thereof. A groove is defined in the light source cover and extends toward the inside of the light source cover from an edge portion thereof.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Dae Song, Sung Dong Park, Sang Hwan Lee
  • Patent number: 9594270
    Abstract: A liquid crystal display having a support structure for a touch panel is disclosed. In one aspect of the described technology the LCD display includes a liquid crystal panel; a touch panel formed on the liquid crystal panel, and a backlight assembly formed under the liquid crystal panel and including a light emitting diode. In addition, a mold frame is configured to support the liquid display panel while surrounding the backlight assembly, a bottom chassis is configured to seat and support the backlight assembly and the mold frame, and a support structure is located under the touch panel and provides support for the touch panel.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: In-Su Baek, Yong Woo Kim, Sang A An, Sang Hwan Lee
  • Publication number: 20160379587
    Abstract: A display apparatus includes a display panel including a first substrate and a second substrate opposite to the first substrate, the first substrate including a switching element and a pixel electrode electrically connected to the switching element, and a display panel driver including a gate driver which outputs a gate signal to a gate line of the display panel, the gate line electrically connected to the switching element and extending in a first direction, and a data driver which outputs a data signal to a data line of the display panel and including data driving chips, the data line electrically connected to the switching element and extending in a second direction crossing the first direction, where each of the data driving chips includes a chip body, and a stress reliever extending from the chip body in a direction having an acute angle to the first and second directions.
    Type: Application
    Filed: January 19, 2016
    Publication date: December 29, 2016
    Inventors: Sung-Dong PARK, Sang-Hwan LEE, Jae-Hwan JEON
  • Patent number: 9459483
    Abstract: A display device includes a touch panel, a display panel, a backlight assembly, a bottom chassis, and a rear cover. The display panel is coupled to the touch panel. The backlight assembly includes a light source to supply light to the display panel, and an optical sheet including a protrusion. The display panel is disposed between the touch panel and the backlight assembly. The bottom chassis includes extensions protruding from walls defining a cavity region to receive the display panel. The extensions support the touch panel. The rear cover is configured to receive the bottom chassis. The bottom chassis is disposed between the rear cover and the touch panel. One of the walls of the bottom chassis includes an opening. The protrusion is configured to engage the opening to couple the optical sheet to the bottom chassis.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Hyun Shin, In-Su Baek, Dong Choul Yang, Sang Hwan Lee
  • Patent number: 9423661
    Abstract: A liquid crystal display includes: a bottom chassis, a backlight assembly received in the bottom chassis, a liquid crystal display panel including a thin film transistor substrate and a counter substrate disposed opposite the thin film transistor substrate, with the liquid crystal display panel being disposed so that the counter substrate faces the backlight assembly. The liquid crystal display further includes a mold structure disposed between the bottom chassis and the liquid crystal display panel, and configured to fasten the liquid crystal display panel to the bottom chassis, a driving connection line connected to the thin film transistor substrate and a shield case configured to cover the driving connection line to protect the driving connection line, and including a lateral side disposed corresponding to an edge of the liquid crystal display panel or disposed inside the edge of the liquid crystal panel.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Jeon, Kee Byem Kim, Sang Hwan Lee, Jae Hun Chung, Ki Seok Cha, Ho Kyoon Kwon, Yun Soo Kim, Dae Ho Song, Young Dae Song, Sang A An
  • Publication number: 20160238896
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other, a driver connecting line disposed on the first display panel, a driving circuit part connected to the driver connecting line, a backlight unit disposed adjacent to the first display panel, a reinforcing part overlapping the driver connecting line and disposed adjacent to at least one side of the second display panel, a second polarizer disposed on the second display panel, and a film layer disposed on the second polarizer and the reinforcing part. The second polarizer overlaps a top surface of the second display panel and does not overlap a top surface of the reinforcing part.
    Type: Application
    Filed: July 29, 2015
    Publication date: August 18, 2016
    Inventors: JAE-HWAN JEON, Sang Hwan Lee, Ki Seok Cha
  • Publication number: 20160238801
    Abstract: An optical integrated circuit comprises optical waveguides formed by sequentially stacking a lower cladding layer, a core layer and a upper cladding layer on a substrate, grooves formed by etching the upper cladding layer, the core layer and all or parts of the lower cladding layer close to a end section of the optical waveguide to intercept light transmitted through the core layer of the optical waveguide or to couple light into the core layer, a plurality of bonding pads formed around the groove, micro-mirrors which is inserted into the grooves and cemented thereinto, and have at least one slanted side surface inclined in a range of 30° to 60° with respect to the bottom surface to reflect a light which exits horizontally from the core layer to the groove and turn the path of the exited light vertically toward the upper side of the groove or conversely to reflect light which emitted vertically from an upper side of the groove and turn the path of the emitted light horizontally to couple into the core layer,
    Type: Application
    Filed: February 10, 2016
    Publication date: August 18, 2016
    Inventors: Sang Hwan LEE, Chan Yong PARK, Young Hye KIM
  • Patent number: 9354468
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first display panel and a second display panel which are opposite to each other, a driving unit connection line which is formed in the first display panel, a driving circuit portion which is connected to the driving unit connection line, a backlight unit which is disposed so as to be adjacent to the first display panel, a polarizer which is disposed on a surface of the second display panel and overlaps the driving unit connection line and the driving circuit portion, and a reinforcement unit that overlaps the driving unit connection line, and the polarizer may be disposed on the reinforcement unit.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Lee, Young Dae Song, Jae-Hwan Jeon, Yong Woo Kim, Sung-Dong Park, Hyeok-Tae Kwon, Joo-Yeon Won, Chong Guk Lee, Byung Goo Jung
  • Patent number: 9318256
    Abstract: The present invention relates to a circuit protection device and a method of manufacturing the same. The circuit protection device includes a common mode noise filter having a plurality of sheets, each of the sheets being formed to optionally include a coil pattern, an internal electrode, a hole filled with a conductive material, and a hole filled with a magnetic material; and an electrostatic discharge (ESD) protection device having a plurality of sheets, each of the sheets being formed to optionally include an internal electrode and a hole filled with an ESD protection material.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 19, 2016
    Assignee: INNOCHIPS TECHNOLOGY CO., LTD.
    Inventors: In-Kil Park, Tae-Hyung Noh, Kyu Cheol Jang, Myung Ho Lee, Gyeong Tae Kim, Sang Hwan Lee
  • Publication number: 20160057872
    Abstract: A display device may include a display panel having a curved shape, a first printed circuit board and a second printed circuit board, at least one first carrier tape configured to connect the first printed circuit board to the display panel, at least one second carrier tape configured to connect the second printed circuit board to the display panel, and a connection unit configured to connect the first and second printed circuit boards to each other. A part of a layer of the connection unit may be a portion of a layer included in at least one of the first and second printed circuit boards.
    Type: Application
    Filed: June 4, 2015
    Publication date: February 25, 2016
    Inventors: Sung Dong Park, Hyeok Tae Kwon, Sang Hwan Lee, Ki Seok Cha