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).

  • Publication number: 20210041747
    Abstract: A display device includes: a display substrate; a light amount control layer on the display substrate; a first polarizer on the light amount control layer; and a color conversion layer on the first polarizer. The color conversion layer includes a phosphor, the phosphor includes a quantum dot, the quantum dot including: a core; a first shell surrounding the core; and a second shell surrounding the first shell, and the quantum dot has a diameter ranging from about 2 nm to about 32 nm.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 11, 2021
    Inventors: Minki NAM, Kyoungwon PARK, Baekhee LEE, Youngmin KIM, Haeil PARK, Jaikyeong KIM, Heesuk KIM, Wanki BAE, Dohchang LEE, Byeongguk JEONG
  • Patent number: 10866457
    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: April 15, 2019
    Date of Patent: December 15, 2020
    Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
  • Patent number: 10852587
    Abstract: A display device includes: a display substrate; a light amount control layer on the display substrate; a first polarizer on the light amount control layer; and a color conversion layer on the first polarizer. The color conversion layer includes a phosphor, the phosphor includes a quantum dot, the quantum dot including: a core; a first shell surrounding the core; and a second shell surrounding the first shell, and the quantum dot has a diameter ranging from about 2 nm to about 32 nm.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: December 1, 2020
    Inventors: Minki Nam, Kyoungwon Park, Baekhee Lee, Youngmin Kim, Haeil Park, Jaikyeong Kim, Heesuk Kim, Wanki Bae, Dohchang Lee, Byeongguk Jeong
  • Publication number: 20200363575
    Abstract: A display panel includes: a light emitting device to generate light; a plurality of color conversion patterns including: a first color conversion pattern including first scattering particles dispersed in the first color conversion pattern and configured to scatter the light of the light emitting device; and a second color conversion pattern including second scattering particles dispersed in the second color conversion pattern and configured to scatter the light of the light emitting device; a plurality of color filters including: a first color filter overlapping the first color conversion pattern; and a second color filter overlapping the second color conversion pattern; and a single, low index of refraction layer substantially continuously extending in the surface direction to overlap the first and the second color conversion patterns. The single, low index of refraction layer has a refractive index lower than refractive indexes of the first and second color conversion patterns.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: Moonjung BAEK, Seon-Tae YOON, Junghyun KWON, Youngmin KIM, Haeil PARK
  • Patent number: 10818652
    Abstract: A display device includes: a display substrate; an opposing substrate opposing the display substrate; and a light amount control layer disposed between the display substrate and the opposing substrate. The display substrate includes: a first substrate; a thin film transistor o disposed n the first substrate; and a pixel electrode connected to the thin film transistor. The opposing substrate includes: a second substrate; a color conversion layer disposed on the second substrate; and a first polarizer disposed on the color conversion layer. The first polarizer includes: a base substrate; and a linear polarizer disposed on one surface of the base substrate. The first polarizer opposes the pixel electrode. The one surface of the base substrate on which the linear polarizer is disposed has a flatness of about 60 nm or less.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 27, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yongseok Kim, Daeho Lee, Junhan Lee, Youngmin Kim, Haeil Park
  • Patent number: 10785284
    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: Grant
    Filed: March 21, 2018
    Date of Patent: September 22, 2020
    Assignee: ESTMOB INC.
    Inventors: Yoonsik Oh, Haeil Park
  • Publication number: 20200292887
    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: June 2, 2020
    Publication date: September 17, 2020
    Inventors: Kwangkeun Lee, Youngmin Kim, Haeil Park, Moonjung Baek, Seon-tae Yoon, Kunhee Jo
  • Patent number: 10739502
    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: Grant
    Filed: June 20, 2017
    Date of Patent: August 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Moonjung Baek, Seon-Tae Yoon, Junghyun Kwon, Youngmin Kim, Haeil Park
  • Patent number: 10698255
    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: Grant
    Filed: December 29, 2017
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kisoo Park, Youngmin Kim, Haeil Park, Seon-Tae Yoon
  • Patent number: 10698276
    Abstract: A display device and a method of manufacturing the display device are capable of enhancing arrangement condition of a switching element, a color conversion layer, and a pixel electrode, and increasing an aperture ratio of a pixel. The display device includes: a first substrate; a switching element and a color conversion layer on the first substrate; a polarization pattern overlapping the color conversion layer and connected to the switching element; and a pixel electrode overlapping the polarization pattern and connected to the polarization pattern.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seungjin Chu, Youngmin Kim, Seungjin Baek, Haeil Park
  • Patent number: 10681627
    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: Grant
    Filed: March 20, 2018
    Date of Patent: June 9, 2020
    Assignee: ESTMOB INC.
    Inventors: Yoonsik Oh, Haeil Park
  • Publication number: 20200174320
    Abstract: A display device includes: a first substrate; a second substrate facing the first substrate; a light amount control layer between the first substrate and the second substrate; a first line disposed on the first substrate and extending in a first direction and a second line disposed on the first substrate and extending in a second direction which intersects the first direction; a light blocking member disposed on the first substrate and overlapping at least one of the first line and the second line; a plurality of color conversion layers on the second substrate in respective pixel areas; and a partition wall among the plurality of color conversion layers, corresponding to the first line and the second line. The partition wall has a width less than a width of the light blocking member.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: Seontae Yoon, Junghyun Kwon, Donguk Kim, Haeil Park, Junhan Lee
  • Patent number: 10606123
    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: Grant
    Filed: April 2, 2018
    Date of Patent: March 31, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jinho Park, Sang-gil Lee, Taegil Kang, Namheon Kim, Hyuk-hwan Kim, Haeil Park, Baekhee Lee, Eunguk Lee, Jaejin Choi
  • Patent number: 10551672
    Abstract: A display device includes: a first substrate; a second substrate facing the first substrate; a light amount control layer between the first substrate and the second substrate; a first line disposed on the first substrate and extending in a first direction and a second line disposed on the first substrate and extending in a second direction which intersects the first direction; a light blocking member disposed on the first substrate and overlapping at least one of the first line and the second line; a plurality of color conversion layers on the second substrate in respective pixel areas; and a partition wall among the plurality of color conversion layers, corresponding to the first line and the second line. The partition wall has a width less than a width of the light blocking member.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seontae Yoon, Junghyun Kwon, Donguk Kim, Haeil Park, Junhan Lee
  • Patent number: 10551548
    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: Grant
    Filed: January 3, 2019
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwangkeun Lee, Youngmin Kim, Yeongseok Kim, Haeil Park, Seon-Tae Yoon, Junhan Lee
  • 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: 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: 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: 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