Patents by Inventor Haeil Park

Haeil Park 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: 10385268
    Abstract: A photosensitive resin composition comprises: a solvent in an amount of about 60 percentage by weight (wt %) to about 95 wt %; and a solid content in an amount of about 5 wt % to about 40 wt %, with respect to a total weight of the photosensitive resin composition, wherein the solid content comprises with respect to a total weight of the solid content: a phosphor in an amount of about 5 wt % to about 90 wt %; a photopolymerizable compound in an amount of about 4 wt % to about 70 wt %; an acetophenone-based photopolymerization initiator in an amount of about 0.1 wt % to about 20 wt %; and an alkali soluble resin in an amount of about 5 wt % to about 80 wt %, with respect to a total weight of the solid content.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 20, 2019
    Assignees: Samsung Display Co., Ltd., DONGWOO FINE-CHEM CO., LTD.
    Inventors: Baekhee Lee, Minki Nam, Junghyun Kwon, Youngmin Kim, Namseok Roh, Haeil Park, Seontae Yoon, Donguk Kim, Kisoo Park, Kwangkeun Lee, Junhan Lee, Juho Kim, Hyounwoo Kim, Hunsik Kim, Jongsoo Lee
  • Publication number: 20190243188
    Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
  • Publication number: 20190204496
    Abstract: A backlight unit includes a light guide plate that includes a side surface that is an incidence surface that is normal to a first direction, a light source adjacent to the incidence surface, and a light conversion layer disposed on an upper surface of the light guide plate that changes a wavelength of light incident thereto. The light conversion layer includes a first portion and a second portion arranged in the first direction. The first portion is closer to the incidence surface in the first direction than the second portion, and the first portion is thinner than the second portion.
    Type: Application
    Filed: January 2, 2019
    Publication date: July 4, 2019
    Inventors: KWANGKEUN LEE, Junghyun Kwon, Yongseok Kim, Haeil Park, Seon-Tae Yoon, Daeho Lee
  • Publication number: 20190204495
    Abstract: A display apparatus includes a display panel configured to display an image. A light guide plate is disposed below the display panel. The light guide plate has a light incident surface. A light source is disposed adjacent to the light incident surface of the light guide plate to generate first light. A light conversion layer is disposed between the light guide plate and the display panel to convert a wavelength band of incident light. An optical filter layer is disposed between the light guide plate and the light conversion layer to selectively transmit or reflect incident light.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 4, 2019
    Inventors: KWANGKEUN LEE, YOUNGMIN KIM, YEONGSEOK KIM, HAEIL PARK, SEON-TAE YOON, JUNHAN LEE
  • Publication number: 20190171067
    Abstract: A liquid crystal display device includes a light source member and a display panel disposed on the light source member. The display panel includes a first substrate and a second substrate facing each other, a liquid crystal layer, and a color conversion layer that is disposed between the liquid crystal layer and the first substrate. The color conversion layer includes a light emitter and a low refractive body having a refractive index of about 1.0 to about 1.3. The liquid crystal display device exhibits high color reproducibility and improves external light extraction efficiency.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 6, 2019
    Inventors: Kwangkeun LEE, Youngmin KIM, Haeil PARK, Moonjung BAEK, Seon-tae YOON, Kunhee JO
  • Patent number: 10281767
    Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 7, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
  • Publication number: 20190121194
    Abstract: A liquid crystal display (“LCD”) panel and an LCD device according to an exemplary embodiment may provide a first base substrate, a first polarizing layer disposed between the first base substrate and a liquid crystal layer, a first low refraction layer disposed between the first base substrate and the first polarizing layer and having a refractive index less than that of the first base substrate, and a color converting member disposed between the first low refraction layer and the first polarizing layer and including a quantum dot in an integrated manner, to realize excellent optical characteristics and have a small thickness.
    Type: Application
    Filed: July 18, 2018
    Publication date: April 25, 2019
    Inventors: Haeil PARK, Yongseok KIM, Jinho PARK, Gabsoo HAN
  • Publication number: 20190064589
    Abstract: A display device includes a backlight unit. A display module configured to display an image is disposed on the backlight unit. A light conversion member is disposed between the display module and the backlight unit. The backlight unit includes a light source unit configured to generate light and a light guide plate configured to guide the light generated by the light source unit. The light conversion member includes a transfer layer disposed on the backlight unit and a light conversion layer disposed on the transfer layer.
    Type: Application
    Filed: April 2, 2018
    Publication date: February 28, 2019
    Inventors: JINHO PARK, SANG-GIL LEE, TAEGIL KANG, NAMHEON KIM, HYUK-HWAN KIM, HAEIL PARK, BAEKHEE LEE, EUNGUK LEE, JAEJIN CHOI
  • Patent number: 10209553
    Abstract: A display device includes: a backlight unit emitting a light; a first substrate on a path of a light emitted from the backlight unit; a pixel electrode on the first substrate; a light amount control layer on the pixel electrode; a first polarizer on the light amount control layer; a color conversion layer on the first polarizer; and an angular filter between the backlight unit and the color conversion layer. The color conversion layer includes a phosphor, and the angular filter blocks 50% or more of a light incident to the angular filter at an incident angle of 30 degrees or more.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: February 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwangkeun Lee, Youngmin Kim, Haeil Park, Seungjin Baek, Junhan Lee, Kunhee Jo
  • Patent number: 10162259
    Abstract: A photoresist composition including a photoresist composition includes a photo-luminescence nanocomposite, a photopolymerizable monomer, a first photopolymerization initiator, a second photopolymerization initiator, a binder resin, and a solvent. The photo-luminescence nanocomposite includes a first quantum dot nanocomposite, a second quantum dot nanocomposite, or a combination thereof. The first quantum dot nanocomposite includes a first quantum dot nanoparticle and a first coating layer surrounding the first quantum dot nanoparticle, the first coating layer including a first inorganic material. The second quantum dot nanocomposite includes a second quantum dot nanoparticle and a second coating layer surrounding the second quantum dot nanoparticle, the second coating layer including a second inorganic material.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Minki Nam, Kyoungwon Park, Baekhee Lee, Youngmin Kim, Haeil Park
  • Publication number: 20180292711
    Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 11, 2018
    Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
  • Publication number: 20180275461
    Abstract: A photoluminescence device includes a first base substrate, a blue light blocking pattern disposed on the first base substrate in a first color pixel area, a second color pixel area and a first light blocking area disposed between the first color pixel area and the second color pixel area, a blue color filter disposed on the first base substrate in a blue pixel area, the first light blocking area and a second light blocking area between the blue pixel area and the second color pixel area, a first color conversion pattern disposed on the blue light blocking pattern in the first color pixel area, and a second color conversion pattern disposed on the blue light blocking pattern in the second color pixel area.
    Type: Application
    Filed: December 29, 2017
    Publication date: September 27, 2018
    Inventors: Kisoo PARK, Youngmin KIM, Haeil PARK, Seon-Tae YOON
  • Publication number: 20180213026
    Abstract: A P2P transmission method having enhanced security, according to an embodiment of the present invention, comprises: a step for receiving by a server from a first client a first temporary key issuance request; a step for generating a comparison key; a step for receiving an input key from a second client; a step for receiving from a transmission client a transmission request for a particular file; a step for comparing the comparison key and the input key; a transmission path selecting step for selecting a particular transmission path between the transmission client and a reception client if the comparison key and the input key correspond to each other; and a file transmission requesting step for requesting file transmission, through the selected transmission path, from the transmission client and reception client.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 26, 2018
    Applicant: ESTMOB INC.
    Inventors: Yoonsik OH, Haeil PARK
  • Publication number: 20180213473
    Abstract: The present disclosure relates to a program, a method and a system for P2P transmission. A method for P2P transmission by means of an access point, according to an embodiment of the present disclosure, includes at least: a step for receiving identification information of a detected access point from a transmission client and a reception client; a step for, if the reception client detects a first access point as the same detected access point or accesses the first access point which is the same detected access point, configuring the first access point as a transmission path; a step for checking whether or not the first access point has been configured to be blocked; and a step for matching first identification information with whether or not the first access point has been configured to be blocked and storing same in an accumulation database.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Applicant: ESTMOB INC.
    Inventors: Yoonsik OH, Haeil PARK
  • Publication number: 20180156951
    Abstract: A photoluminescence device for an image generating device includes a color conversion pattern, a color filter, and a low index of refraction layer. The color conversion pattern has a first refractive index and is configured to convert light transmitted from the image generating device from one wavelength to another. The color filter is configured to selectively pass light of a given range of wavelengths transmitted through the color conversion pattern. The low index of refraction layer has a second refractive index and is disposed between the color conversion pattern and the color filter. The second refractive index is lower than the first refractive index.
    Type: Application
    Filed: June 20, 2017
    Publication date: June 7, 2018
    Inventors: Moonjung BAEK, Seon-Tae Yoon, Junghyun Kwon, Youngmin Kim, Haeil Park
  • Patent number: 9971076
    Abstract: A quantum dot color filter includes a first pixel region, a second pixel region, a third pixel region, and a fourth pixel region. The first pixel region includes a first color conversion layer including quantum dots configured to convert incident light into light of a first color. The second pixel region includes a second color conversion layer including quantum dots configured to convert incident light into light of the first color, and a third color conversion layer including quantum dots configured to convert incident light into light of a second color. The third pixel region includes a fourth color conversion layer including quantum dots configured to convert incident light into light of the second color. The fourth pixel region includes a scattering material layer.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 15, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kisoo Park, Donguk Kim, Youngmin Kim, Yongseok Kim, Haeil Park
  • Publication number: 20180120646
    Abstract: A display device includes a backlight, a first substrate on a path of light output from the backlight, a second substrate facing the first substrate, a light amount control layer between the first and second substrates, a color filter layer on the second substrate at a pixel area, and a light conversion layer between the light amount control layer and the color filter layer. The light conversion layer outputs white light.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 3, 2018
    Inventors: Baekhee LEE, Youngmin KIM, Haeil PARK, Kwangkeun LEE
  • Patent number: 9952462
    Abstract: A display device includes: a first substrate; a support layer defining a microcavity above the first substrate; a liquid crystal layer disposed in the microcavity; a planarization layer disposed on the support layer; and a blue-light transmission layer disposed between the support layer and the planarization layer. The display device has improved light extraction efficiency and process efficiency.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seontae Yoon, Junghyun Kwon, Minki Nam, Haeil Park, Kwangkeun Lee, Junhan Lee
  • Publication number: 20180074365
    Abstract: A display device includes: a backlight unit emitting a light; a first substrate on a path of a light emitted from the backlight unit; a pixel electrode on the first substrate; a light amount control layer on the pixel electrode; a first polarizer on the light amount control layer; a color conversion layer on the first polarizer; and an angular filter between the backlight unit and the color conversion layer. The color conversion layer includes a phosphor, and the angular filter blocks 50% or more of a light incident to the angular filter at an incident angle of 30 degrees or more.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Kwangkeun LEE, Youngmin KIM, Haeil PARK, Seungjin BAEK, Junhan LEE, Kunhee JO
  • Publication number: 20180074401
    Abstract: A photoresist composition including a photoresist composition includes a photo-luminescence nanocomposite, a photopolymerizable monomer, a first photopolymerization initiator, a second photopolymerization initiator, a binder resin, and a solvent. The photo-luminescence nanocomposite includes a first quantum dot nanocomposite, a second quantum dot nanocomposite, or a combination thereof. The first quantum dot nanocomposite includes a first quantum dot nanoparticle and a first coating layer surrounding the first quantum dot nanoparticle, the first coating layer including a first inorganic material. The second quantum dot nanocomposite includes a second quantum dot nanoparticle and a second coating layer surrounding the second quantum dot nanoparticle, the second coating layer including a second inorganic material.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 15, 2018
    Inventors: Minki NAM, Kyoungwon PARK, Baekhee LEE, Youngmin KIM, Haeil PARK