Patents by Inventor Kyung-Kook JANG

Kyung-Kook JANG 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: 9540564
    Abstract: The present invention provides a quantum rod including a core including zinc compound; and a shell covering the core and including ZnS. The quantum rod emits the short wavelength light.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 10, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Kook Jang, Jin-Wuk Kim, Byung-Geol Kim, Kyu-Nam Kim
  • Publication number: 20160137920
    Abstract: Embodiments relate to a quantum rod composition, a quantum rod film, a display device with a quantum rod film, and a method of forming a quantum rod film. The quantum rod film includes a plurality of quantum rods and a polymer with a dipole side chain. Responsive to an external electric field, the major axis of the quantum rods and an axis of the dipole side chain arranges in the same direction. The display device includes a plurality of pixel and common electrodes for generating an electric field, and a backlight unit positioned under a first substrate. Responsive to receiving light from the backlight unit, the quantum rod film emits light polarized in a direction parallel to the major axis of the quantum rods.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 19, 2016
    Inventors: Kyu-Nam KIM, Jin-Wuk KIM, Byung-Geol KIM, Kyung-Kook JANG, Hee-Yeol KIM, Sung-Il WOO, Tae-Yang LEE
  • Publication number: 20160075943
    Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 17, 2016
    Inventors: Kyu-Nam KIM, Jin-Wuk KIM, Byung-Geol KIM, Sung-Woo KIM, Kyung-Kook JANG, Hee-Yeol KIM, Sung-Il WOO
  • Patent number: 9228717
    Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Kyu-Nam Kim, Jin-Wuk Kim, Byung-Geol Kim, Sung-Woo Kim, Kyung-Kook Jang, Hee-Yeol Kim, Sung-Il Woo
  • Patent number: 9164353
    Abstract: A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer formed between the first substrate and the second substrate, wherein a plurality of quantum rods are arranged in the quantum rod layer in one direction; and a polarizer disposed on the display panel and including a quarter wave plate (QWP) layer and a polyvinyl alcohol (PVA) layer, wherein the PVA layer transmits only light linearly polarized in a first direction, and wherein the QWP layer is disposed under the PVA layer, and the QWP layer circularly polarizes the light linearly polarized in the first direction or linearly polarizes light reflected by the display panel in a second direction.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: October 20, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Il Jeon, Kyung-Chan Kim, Joong-Pill Park, Moon-Bae Gee, Sung-Hee Cho, Kyung-Kook Jang, Kyung-Seok Jeong
  • Patent number: 9146420
    Abstract: A liquid crystal display (LCD) device according to an embodiment includes a liquid crystal panel; a first polarization plate on the liquid crystal panel; a backlight unit under the liquid crystal panel; and a quantum rod sheet disposed between the liquid crystal panel and the backlight unit.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: September 29, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Moon-Bae Gee, Jeong-Ae Lee, Kyung-Chan Kim, Kyung-Hoon Lee, Kyung-Jin Yoon, Joong-Pill Park, Sung-Hee Cho, Hyo-Jin Noh, Kyung-Kook Jang, Kyung-Seok Jeong
  • Patent number: 9104062
    Abstract: A liquid crystal display (LCD) device includes a first substrate; a second substrate; a liquid crystal layer disposed between the first and second substrates; a color filter on one of the first and second substrates; a first polarization plate under the first substrate; a second polarization plate over the second substrate; a backlight unit under the first polarization plate; and a quantum rod sheet disposed between the color filter and the second polarization plate.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: August 11, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Chan Kim, Gee-Sung Chae, Soon-Wook Cha, Kyung-Hoon Lee, Joong-Pill Park, Moon-Bae Gee, Sung-hee Cho, Kyung-Kook Jang, Kyung-Seok Jeong
  • Publication number: 20150146452
    Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Kyu-Nam KIM, Jin-Wuk KIM, Byung-Geol KIM, Sung-Woo KIM, Kyung-Kook JANG, Hee-Yeol KIM, Sung-Il WOO
  • Patent number: 8902384
    Abstract: A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer disposed between the first substrate and the second substrate, wherein quantum rods in the quantum rod layer are arranged in one direction; a backlight unit provided under the display panel and configured to provide light to the display panel; and a short-wavelength pass filter film formed between the display panel and the backlight unit, and configured to transmit the light having a predetermined wavelength range.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Il Jeon, Kyung-Chan Kim, Joong-Pill Park, Moon-Bae Gee, Sung-Hee Cho, Kyung-Kook Jang, Kyung-Seok Jeong
  • Publication number: 20140319453
    Abstract: The present invention provides a quantum rod including a core including zinc compound; and a shell covering the core and including ZnS. The quantum rod emits the short wavelength light.
    Type: Application
    Filed: December 12, 2013
    Publication date: October 30, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Kyung-Kook Jang, Jin-Wuk Kim, Byung-Geol Kim, Kyu-Nam Kim
  • Publication number: 20140016296
    Abstract: A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer formed between the first substrate and the second substrate, wherein a plurality of quantum rods are arranged in the quantum rod layer in one direction; and a polarizer disposed on the display panel and including a quarter wave plate (QWP) layer and a polyvinyl alcohol (PVA) layer, wherein the PVA layer transmits only light linearly polarized in a first direction, and wherein the QWP layer is disposed under the PVA layer, and the QWP layer circularly polarizes the light linearly polarized in the first direction or linearly polarizes light reflected by the display panel in a second direction.
    Type: Application
    Filed: October 12, 2012
    Publication date: January 16, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Il JEON, Kyung-Chan KIM, Joong-Pill PARK, Moon-Bae GEE, Sung-Hee CHO, Kyung-Kook JANG, Kyung-Seok JEONG
  • Publication number: 20130341588
    Abstract: A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer disposed between the first substrate and the second substrate, wherein quantum rods in the quantum rod layer are arranged in one direction; a backlight unit provided under the display panel and configured to provide light to the display panel; and a short-wavelength pass filter film formed between the display panel and the backlight unit, and configured to transmit the light having a predetermined wavelength range.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 26, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Il JEON, Kyung-Chan KIM, Joong-Pill PARK, Moon-Bae GEE, Sung-Hee CHO, Kyung-Kook JANG, Kyung-Seok JEONG
  • Publication number: 20130135558
    Abstract: A liquid crystal display (LCD) device includes a first substrate; a second substrate; a liquid crystal layer disposed between the first and second substrates; a color filter on one of the first and second substrates; a first polarization plate under the first substrate; a second polarization plate over the second substrate; a backlight unit under the first polarization plate; and a quantum rod sheet disposed between the color filter and the second polarization plate.
    Type: Application
    Filed: April 25, 2012
    Publication date: May 30, 2013
    Inventors: Kyung-Chan KIM, Gee-Sung CHAE, Soon-Wook CHA, Kyung-Hoon LEE, Joong-Pill PARK, Moon-Bae GEE, Sung-hee CHO, Kyung-Kook JANG, Kyung-Seok JEONG
  • Publication number: 20130107170
    Abstract: A liquid crystal display (LCD) device according to an embodiment includes a liquid crystal panel; a first polarization plate on the liquid crystal panel; a backlight unit under the liquid crystal panel; and a quantum rod sheet disposed between the liquid crystal panel and the backlight unit.
    Type: Application
    Filed: May 23, 2012
    Publication date: May 2, 2013
    Inventors: Moon-Bae GEE, Jeong-Ae LEE, Kyung-Chan KIM, Kyung-Hoon LEE, Kyung-Jin YOON, Joong-Pill PARK, Sung-Hee CHO, Hyo-Jin NOH, Kyung-Kook JANG, Kyung-Seok JEONG