Patents by Inventor Seon-Tae Yoon

Seon-Tae Yoon 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: 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: 10281629
    Abstract: A color conversion panel includes a substrate, a plurality of color conversion layers and a transmission layer on the substrate, a capping layer on the plurality of color conversion layers and the transmission layer, and a filter layer on the capping layer.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: May 7, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Hae Il Park, Jung Hyun Kwon, Kwang Keun Lee, Jun Han Lee
  • 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: 20190113186
    Abstract: A color conversion panel includes a first color conversion layer, a second color conversion layer, and a light wavelength conversion layer. The first color conversion layer includes a first semiconductor nanocrystal set for providing red light. The second color conversion layer neighbors the first color conversion layer and includes a second semiconductor nanocrystal set for providing first green light. The light wavelength conversion layer neighbors the second light conversion layer, may provide blue light, and includes a third semiconductor nanocrystal set for providing second green light.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Inventors: Seon-Tae YOON, Jung Hyun KWON, Ki Soo PARK, Hae Il PARK, Moon Jung BAEK
  • Patent number: 10184618
    Abstract: A color conversion panel includes a first color conversion layer, a second color conversion layer, and a light wavelength conversion layer. The first color conversion layer includes a first semiconductor nanocrystal set for providing red light. The second color conversion layer neighbors the first color conversion layer and includes a second semiconductor nanocrystal set for providing first green light. The light wavelength conversion layer neighbors the second light conversion layer, may provide blue light, and includes a third semiconductor nanocrystal set for providing second green light.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: January 22, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Jung Hyun Kwon, Ki Soo Park, Hae Il Park, Moon Jung Baek
  • 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: 20180202616
    Abstract: A color conversion panel includes a first color conversion layer, a second color conversion layer, and a light wavelength conversion layer. The first color conversion layer includes a first semiconductor nanocrystal set for providing red light. The second color conversion layer neighbors the first color conversion layer and includes a second semiconductor nanocrystal set for providing first green light. The light wavelength conversion layer neighbors the second light conversion layer, may provide blue light, and includes a third semiconductor nanocrystal set for providing second green light.
    Type: Application
    Filed: August 15, 2017
    Publication date: July 19, 2018
    Inventors: Seon-Tae YOON, Jung Hyun KWON, Ki Soo PARK, Hae Il PARK, Moon Jung BAEK
  • Publication number: 20180173053
    Abstract: A display device and method of manufacturing the same, in which the display device includes: a first substrate; a transflective layer disposed on a surface of the first substrate; a wavelength conversion layer disposed on the transflective layer; a capping layer disposed on the wavelength conversion layer; a first polarizing layer disposed on the capping layer; and a second polarizing layer disposed on the other surface of the first substrate. The first polarizing layer and the second polarizing layer have different polarization directions.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 21, 2018
    Inventors: Seon Tae YOON, Jung Hyun Kwon, Ki Soo Park, Hae Il Park, Moon Jung Baek
  • 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
  • Publication number: 20180149970
    Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Inventors: Baek Hee Lee, Young Min Kim, Min Ki Nam, Hae II Park, Seon-Tae Yoon
  • Publication number: 20180108303
    Abstract: A color conversion panel according to an exemplary embodiment includes: a substrate; and a plurality of color conversion layers and a transmission layer that are disposed on the substrate, the plurality of color conversion layers including nanocrystals, wherein at least one color conversion layer of the plurality of color conversion layers includes a first color conversion layer and a second color conversion layer, the first color conversion layer is disposed between the substrate and the second color conversion layer, and the first and second color conversion layers are configured so that a wavelength of light color-converted in the first color conversion layer is shorter than a wavelength of light color-converted in the second color conversion layer.
    Type: Application
    Filed: August 16, 2017
    Publication date: April 19, 2018
    Inventors: Kyoung Won PARK, Min Ki NAM, Seon-Tae YOON, Baek Hee LEE, Young Min KIM, Hae Il PARK
  • Patent number: 9946005
    Abstract: A liquid crystal display device, includes a display panel; a light guide plate to transfer light to the display panel; and a light source module on a side surface of the light guide plate to supply light to the light guide plate, the light source module including a light source to generate light; and a quantum dot unit between the light source and the light guide plate, the quantum dot unit extending along the side surface of the light guide plate and including a tube member filled with a resin including quantum dots, the tube member including a sealing part.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: April 17, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Hae Il Park, Mun Ki Sim, Seon-Tae Yoon
  • Patent number: 9916806
    Abstract: A liquid crystal display apparatus includes a gamma mapping unit configured to receive red, green, and blue image information from an external device. During the first field, the gamma mapping unit generates first to third data signals for controlling the first to third pixels based on the red, green, and blue image information in synchronization with the backlight unit. During the second field, the gamma mapping unit generates fourth and fifth data signals for controlling the first and second pixels based on at least one of the first to third data signals or based on the red, green, and blue image information. As the quantity of the second color light leaked is adjusted through the first and second color filters in the second field, a color reproduction range and brightness of the liquid crystal display panel are improved. Thus, the display quality of the liquid crystal display apparatus is improved.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: March 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Min Cho, Jae Byung Park, Seon-Tae Yoon, Kwangkeun Lee, Jaehyun Cho
  • Patent number: 9897847
    Abstract: A display device includes a display member and a backlight unit, where the display member includes a base substrate, a cover layer that is on the base substrate, extends in a first direction, and includes a plurality of portions defining a first cavity and a second cavity that are spaced apart from the base substrate and adjacent to each other in the first direction, a first display element and a second display element that respectively correspond to the first cavity and the second cavity, a color conversion filter that is disposed on the cover layer, and includes a first filter which overlaps the first cavity and converts incident light into a first color light, and a second filter which overlaps the second cavity and converts incident light into a second color light, and an optical member which is disposed between the color conversion filter and the cover layer.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-uk Kim, Youngmin Kim, Haeil Park, Seon-tae Yoon, Junhan Lee
  • Patent number: 9885954
    Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Young Min Kim, Min Ki Nam, Hae Il Park, Seon-Tae Yoon
  • Patent number: 9852698
    Abstract: An image signal provided from an external device is converted into a data signal such that an image is displayed on a display panel, and a first light control signal and a second light control signal are output. A backlight unit provides the display panel with a first color light and a second color light different from the first color light in response to the first light control signal and the second control signal. The display panel driving unit also determines a pulse width of each of the first light control signal and the second light control signal according to a color characteristic of the image signal.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Min Cho, Kwangkeun Lee, Jae Byung Park, Jaehyun Cho, Seon-Tae Yoon, Hyundeok Im, Sung-Jin Hong
  • Publication number: 20170307932
    Abstract: A color conversion panel includes a substrate, a light blocking layer on the substrate, and color conversion layers and a transmission layer on the substrate, the color conversion layers including a quantum dot, wherein the light blocking layer includes a first sub-light blocking layer overlapping the color conversion layers and the transmission layer, and a second sub-light blocking layer between adjacent ones of the color conversion layers and the transmission layer, and wherein each of the first sub-light blocking layer and the second sub-light blocking layer includes an external light absorption layer on the substrate, and a reflection layer on the external light absorption layer.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Inventors: Kwang Keun LEE, Young Min KIM, Hae Il PARK, Moon Jung BAEK, Seon-Tae YOON, Jun Han LEE
  • Patent number: 9690133
    Abstract: A display substrate includes a base substrate, a color filter layer and a retarder layer. The base substrate includes a first sub pixel area, a second sub pixel area and a third sub pixel area. The color filer layer is disposed on a front surface of the base substrate, and includes at least one of a magenta color filter, a cyan color filter and a yellow color filter in the first sub pixel area and the second sub pixel area and a white color filter in the third sub pixel area. The retarder layer is disposed on a rear surface of the base substrate opposite to the front surface of the base substrate. The retarder layer is configured to polarize light in the first sub pixel area and the second sub pixel area to form a first polarized light. The retarder layer is further configured to polarize the light in the third sub pixel area to form a second polarized light, the second polarized light being different from the first polarized light. Thus, a driving speed of a display apparatus may be decreased.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Keun Lee, Seon-Tae Yoon, Hyun-Min Cho, Jae-Byung Park, Hae-Il Park
  • Publication number: 20170176662
    Abstract: A liquid crystal display device, includes a display panel; a light guide plate to transfer light to the display panel; and a light source module on a side surface of the light guide plate to supply light to the light guide plate, the light source module including a light source to generate light; and a quantum dot unit between the light source and the light guide plate, the quantum dot unit extending along the side surface of the light guide plate and including a tube member filled with a resin including quantum dots, the tube member including a sealing part.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 22, 2017
    Inventors: Baek Hee LEE, Hae Il PARK, Mun Ki SIM, Seon-Tae YOON