Patents by Inventor YoonJung Eo

YoonJung Eo 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: 20230213797
    Abstract: A display device for switching a viewing angle, can include a display panel, a polarizing plate disposed on the display panel, a light path control cell disposed on the polarizing plate and including a liquid crystal layer, and a light path conversion film disposed on the light path control cell and including a plurality of molecules including a polarization alignment dye. An absorption axis of the polarizing plate can be substantially perpendicular to an absorption axis of the light path conversion film. The display device can switch to a shared mode or a shielding mode depending on whether or not a voltage is applied to the light path control cell, thereby providing the display device that switches its viewing angle effectively.
    Type: Application
    Filed: November 10, 2022
    Publication date: July 6, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: YOUNGMIN OH, JONG HOON WOO, SEONG-IL KIM, YOONJUNG EO
  • Patent number: 10914879
    Abstract: A polarizing plate and a liquid crystal display device are provided which can prevent abrasion since the roughness and coefficient of friction of an outer base material of a polarizing plate are designed depending on the surface hardness of the outer base material by conducting studies and tests that are conducted into factors causing abrasion between the polarizing plate and an optical sheet and taking the results into account. Therefore, the problem of abrasion between the polarizing plate and the optical sheet associated with slim-profile liquid-crystal display devices can be solved, thereby achieving a slim design without cost increase.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: February 9, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yoonjung Eo, Sumin Lee, Hyunseung Kim
  • Patent number: 10606126
    Abstract: The present disclosure provides a liquid crystal display device including a light source unit which supplies light to a liquid crystal panel, a lower polarizing plate disposed below the liquid crystal panel, an upper polarizing plate, a light absorption filter, and a fluorescent filter disposed above the liquid crystal panel. According to the present disclosure, when a laser pointer in a visible ray region illuminates after implementing a display image, light irradiated by the laser is absorbed by the fluorescent filter and the light absorption filter to convert the light into red, green, and blue light to be emitted, thereby improving visibility in accordance with illumination of a laser pointer.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 31, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: HyunSeung Kim, YoonJung Eo
  • Patent number: 10503009
    Abstract: The present disclosure relates to an integrated polarizer film and a liquid crystal display integrated with the same polarizer film.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 10, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Yoonjung Eo, Sejeon Park
  • Publication number: 20180120648
    Abstract: The present disclosure provides a liquid crystal display device including a light source unit which supplies light to a liquid crystal panel, a lower polarizing plate disposed below the liquid crystal panel, an upper polarizing plate, a light absorption filter, and a fluorescent filter disposed above the liquid crystal panel. According to the present disclosure, when a laser pointer in a visible ray region illuminates after implementing a display image, light irradiated by the laser is absorbed by the fluorescent filter and the light absorption filter to convert the light into red, green, and blue light to be emitted, thereby improving visibility in accordance with illumination of a laser pointer.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 3, 2018
    Inventors: HyunSeung KIM, YoonJung EO
  • Publication number: 20180095210
    Abstract: A polarizing plate and a liquid crystal display device are provided which can prevent abrasion since the roughness and coefficient of friction of an outer base material of a polarizing plate are designed depending on the surface hardness of the outer base material by conducting studies and tests that are conducted into factors causing abrasion between the polarizing plate and an optical sheet and taking the results into account. Therefore, the problem of abrasion between the polarizing plate and the optical sheet associated with slim-profile liquid-crystal display devices can be solved, thereby achieving a slim design without cost increase.
    Type: Application
    Filed: September 18, 2017
    Publication date: April 5, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Yoonjung Eo, Sumin Lee, Hyunseung Kim
  • Patent number: 9915759
    Abstract: A polarizing plate, a liquid crystal display device having the polarizing plate and a method of fabricating the polarizing plate are characterized by forming an anti-glare/reflection layer, which is formed into a single layer through one coating process using a phase separation resulting from a weight difference between polymer beads and air bubbles. This may result in ensuring cost competitiveness.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: March 13, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: HyeJeong Park, WonKi Park, YoonJung Eo
  • Patent number: 9904100
    Abstract: Disclosed is a liquid crystal display device and a method of manufacturing the same. The liquid crystal display device includes first and second substrates, a liquid crystal layer between the first and second substrates, and a first polarizing layer on the first substrate, wherein the first polarizing layer includes a plurality of carbon nanotubes aligned in a first direction.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: HyeJeong Park, YoonJung Eo
  • Patent number: 9740043
    Abstract: Disclosed is a liquid crystal display device and a method of manufacturing the same. The liquid crystal display device includes first and second substrates, a liquid crystal layer between the first and second substrates, and a first polarizing layer on the first substrate, wherein the first polarizing layer includes a plurality of carbon nanotubes aligned in a first direction.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 22, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: HyeJeong Park, YoonJung Eo
  • Publication number: 20170227814
    Abstract: Disclosed is a liquid crystal display device and a method of manufacturing the same. The liquid crystal display device includes first and second substrates, a liquid crystal layer between the first and second substrates, and a first polarizing layer on the first substrate, wherein the first polarizing layer includes a plurality of carbon nanotubes aligned in a first direction.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Inventors: HyeJeong PARK, YoonJung EO
  • Publication number: 20170090241
    Abstract: The present disclosure relates to an integrated polarizer film and a liquid cryatal display integrated with the same polarizer film.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 30, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Yoonjung EO, Sejeon PARK
  • Publication number: 20150362648
    Abstract: A polarizing plate, a liquid crystal display device having the polarizing plate and a method of fabricating the polarizing plate are characterized by forming an anti-glare/reflection layer, which is formed into a single layer through one coating process using a phase separation resulting from a weight difference between polymer beads and air bubbles. This may result in ensuring cost competitiveness.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 17, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: HyeJeong PARK, WonKi PARK, YoonJung EO
  • Publication number: 20150124186
    Abstract: Disclosed is a liquid crystal display device and a method of manufacturing the same. The liquid crystal display device includes first and second substrates, a liquid crystal layer between the first and second substrates, and a first polarizing layer on the first substrate, wherein the first polarizing layer includes a plurality of carbon nanotubes aligned in a first direction.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Inventors: HyeJeong Park, YoonJung Eo