Patents by Inventor Hyun-Min Cho

Hyun-Min Cho 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: 9995963
    Abstract: A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Byung Park, Sung Sik Yun, Jong Hyuk Kang, Hae Il Park, Hyun Min Cho
  • Patent number: 9978777
    Abstract: A TFT array panel of a display device includes a first substrate, a first electrode disposed on the first substrate, a first insulating layer including a first hole, the first insulating layer disposed on the first electrode, a second insulating layer disposed on the first insulating layer and including a second hole corresponding to the first hole, and a capping layer including a first inner portion, the capping layer disposed on an inner lateral surface forming the second hole, where an end portion of the first inner portion disposed in the second hole is separated from the first electrode.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 22, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Su Bin Bae, Yu-Gwang Jeong, Hyun Min Cho, Shin Il Choi, Jin Hwan Choi
  • Publication number: 20180138157
    Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 17, 2018
    Inventors: Hyun Deok IM, Jong Hyuk KANG, Dae Hyun KIM, Joo Yeol LEE, Hyun Min CHO
  • Patent number: 9971198
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Min Cho, Dae-Hyun Kim, Jae-Woong Kang, Jae-Byung Park, Kwang-Keun Lee
  • Publication number: 20180102249
    Abstract: A method of manufacturing a nanostructure includes: heating a mixed solution to a first temperature, the mixed solution including a solvent, a compound including indium, and an octadecylphosphonic acid; heating the mixed solution to a second temperature; injecting, after heating the mixed solution to the second temperature, a phosphine precursor into the mixed solution; and heating the mixed solution including the injected phosphine precursor to a third temperature.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 12, 2018
    Inventors: Dae Hyun Kim, Jong Hyuk Kang, Hyun Deok Im, Hyun Min Cho, Yongju Kwon, Bomi Kim, Sung-Jee Kim, Mihye Lim
  • 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: 9897842
    Abstract: Provided is a display device including: an insulation substrate; a thin film transistor disposed on the substrate; a pixel electrode disposed on the thin film transistor; a roof layer formed to be spaced apart from the pixel electrode with a microcavity therebetween and including a support member; and a liquid crystal layer filling the microcavity, in which the microcavity includes a plurality of microcavities having a semicircular cross section arranged along an extending direction of the gate line and extending in the extending direction of the data line.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Deok Im, Dae Hyun Kim, Hyun Min Cho, Jae Byung Park
  • Publication number: 20180019377
    Abstract: A light emitting device includes first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Inventors: Dae Hyun KIM, Jong Hyuk KANG, Joo Yeol LEE, Hyun Deok IM, Chi O CHO, Hyun Min CHO
  • Publication number: 20180019426
    Abstract: A light emitting device includes a plurality of unit light emitting regions on a substrate. At least one of the unit light emitting regions includes at least one pair of first and second electrodes that are spaced apart, at least one first bar-type LED in a first layer on the substrate, and at least one second bar-type LED in a second layer on the substrate. At least one of the first bar-type LED or the second bar-type LED is electrically connected between the first electrode and the second electrode.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 18, 2018
    Inventors: Hyun Deok IM, Jong Hyuk KANG, Dae Hyun KIM, Joo Yeol LEE, Chi O CHO, Hyun Min CHO
  • Patent number: 9869896
    Abstract: A display device, including a color conversion film, including a base film including a plurality of openings, the base film blocking light, and a color conversion layer in the openings, the color conversion layer including a pattern of different colors.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Uk Kim, Young Min Kim, Hae IL Park, Mun-Ki Sim, Kwang Keun Lee, Hyun Min Cho
  • Patent number: 9864230
    Abstract: A display apparatus includes a display panel that includes a plurality of pixels which displays an image in a front direction, and a backlight unit which provides a light to the display panel and includes a first light source part which is disposed at a rear surface of the display panel, includes a first support substrate and a first light source mounted on the first support substrate and emits a first color light, and a second light source part which is disposed at the rear surface of the display panel, includes a second support substrate partially overlapped with the first support substrate and a second light source mounted on the second support substrate, and emits a second color light having a wavelength band different from that of the first color light, where an opening is defined through the second support substrate and corresponds to the first light source.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junghyun Kwon, Hyundeok Im, Jong Hyuk Kang, Jae Byung Park, Haeil Park, Hyun Min Cho
  • 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: 20170343855
    Abstract: A display device includes a first substrate, a first wavelength conversion layer and a second wavelength conversion layer disposed on the first substrate and spaced apart from each other, and a polarization layer disposed on the first wavelength conversion layer and the second wavelength conversion layer, the polarization layer including a reflection portion and a transmitting portion, in which the reflection portion overlaps a gap formed between the first wavelength conversion layer and the second wavelength conversion layer.
    Type: Application
    Filed: January 5, 2017
    Publication date: November 30, 2017
    Inventors: Kang Soon HAN, Yun Jong YEO, Dong Uk KIM, Hyun Min CHO, Hyung Bin CHO, Ji Hun KIM, Sung Won CHO, Young Min KIM, Hae Il PARK, Seung Jin Baek, Dae Young LEE, Kun Hee JO, Gug Rae JO
  • Publication number: 20170315409
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Application
    Filed: July 20, 2017
    Publication date: November 2, 2017
    Inventors: Hyun-Min CHO, Dae-Hyun KIM, Jae-Woong KANG, Jae-Byung PARK, Kwang-Keun LEE
  • Publication number: 20170317104
    Abstract: A transistor array panel is manufactured by a method that reduces or obviates the need for highly selective etching agents or complex processes requiring multiple photomasks to create contact holes. The panel includes: a substrate; a buffer layer positioned on the substrate; a semiconductor layer positioned on the buffer layer; an intermediate insulating layer positioned on the semiconductor layer; and an upper conductive layer positioned on the intermediate insulating layer, wherein the semiconductor layer includes a first contact hole, the intermediate insulating layer includes a second contact hole positioned in an overlapping relationship with the first contact hole, and the upper conductive layer is in contact with a side surface of the semiconductor layer in the first contact hole.
    Type: Application
    Filed: December 15, 2016
    Publication date: November 2, 2017
    Inventors: Yu-Gwang JEONG, Hyun Min CHO, Su Bin BAE, Shin II CHOI, Sang Gab KIM
  • Patent number: 9778525
    Abstract: A display device is disclosed. In one aspect, the display device includes a plurality of pixels each including first and second switching elements connected to a first gate line and a data line. Each pixel also includes a first memory capacitor connected to the first switching element and a capacitance voltage line, a second memory capacitor connected to the second switching element and the capacitance voltage line, and a third switching element and a fourth switching element each connected to a second gate line and a reference voltage line. Each pixel further includes a fifth switching element connected to a third gate line and the first memory capacitor, a sixth switching element connected to the third gate line and the second memory capacitor, a first subpixel electrode connected to the third and fifth switching elements, and a second subpixel electrode connected to the fourth and sixth switching element.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: October 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Se Young Song, Sung-Jin Hong, Jae Byung Park, Mee Hye Jung, Hyun Min Cho
  • Publication number: 20170278977
    Abstract: A thin film transistor array panel includes a substrate; a data line disposed on the substrate; a buffer layer disposed on the substrate and spaced apart from the data line in a plan view; a thin film transistor disposed on the buffer layer, the thin film transistor including an oxide semiconductor layer; and a pixel electrode connected to the thin film transistor.
    Type: Application
    Filed: September 21, 2016
    Publication date: September 28, 2017
    Inventors: Yu-Gwang JEONG, Hyun Min CHO, Su Bin BAE, Shin Il CHOI
  • Publication number: 20170278867
    Abstract: A display device may include a substrate, an active pattern layer, a gate insulating layer, a first metal pattern layer, an interlayer insulating layer, a second metal pattern layer, and a passivation film. The active pattern layer may be disposed on the substrate. The gate insulating layer may be disposed on the active pattern layer. The first metal pattern layer may be disposed on the gate insulating layer. The interlayer insulating layer may be disposed on the first metal pattern layer. The second metal pattern layer may be disposed on the interlayer insulating layer. The passivation film may be disposed on the side wall of the second metal pattern layer.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 28, 2017
    Inventors: Yu Gwang JEONG, Su Bin BAE, Hyun Min CHO, Sang Gab KIM
  • Patent number: 9753326
    Abstract: A photoluminescent panel includes a lower substrate, an upper substrate facing the lower substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a color conversion layer disposed on the upper substrate. The color conversion layer includes a light excitation particle which absorbs light having a desired wavelength and emits excited light, and a scattering particle which scatters the excited light.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Min Cho, Dae-Hyun Kim, Jae-Woong Kang, Jae-Byung Park, Kwang-Keun Lee
  • Publication number: 20170227813
    Abstract: A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.
    Type: Application
    Filed: April 27, 2017
    Publication date: August 10, 2017
    Inventors: JAE BYUNG PARK, SUNG SIK YUN, JONG HYUK KANG, HAE IL PARK, HYUN MIN CHO