Patents by Inventor Don-Chan Cho

Don-Chan 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: 11618257
    Abstract: An inkjet printing apparatus includes: a passage plate in which a head chamber is disposed; and a plurality of nozzle plates disposed below the passage plate, the plurality of nozzle plates comprising a nozzle that is in fluid connection with the head chamber. The plurality of nozzle plates are stacked on each other, and the nozzle of the plurality of nozzle plates comprises a plurality of through holes passing through the plurality of nozzle plates and overlapping each other.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: April 4, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Kang Soo Han, Che Ho Lim, Don Chan Cho, Hak Bum Choi
  • Publication number: 20220109027
    Abstract: An embodiment provides a display device including: a first pixel, a second pixel, and a third pixel that form one dot and display different colors; a first light emitting element disposed in the first pixel, a second light emitting element disposed in the second pixel, and a third light emitting element disposed in the third pixel; and a first color conversion area in which a first color conversion layer overlapping the first light emitting element is disposed, a second color conversion area in which a second color conversion layer overlapping the second light emitting element is disposed, and a third color conversion area in which a third color conversion layer overlapping the third light emitting element is disposed, wherein the first color conversion area, the second color conversion area, and the third color conversion area have polygonal planar shapes having at least 5 sides.
    Type: Application
    Filed: July 8, 2021
    Publication date: April 7, 2022
    Inventors: Seon Uk LEE, Kang Uk KIM, Yeo Geon YOON, Don Chan CHO
  • Publication number: 20220024208
    Abstract: An inkjet printing apparatus includes: a passage plate in which a head chamber is disposed; and a plurality of nozzle plates disposed below the passage plate, the plurality of nozzle plates comprising a nozzle that is in fluid connection with the head chamber. The plurality of nozzle plates are stacked on each other, and the nozzle of the plurality of nozzle plates comprises a plurality of through holes passing through the plurality of nozzle plates and overlapping each other.
    Type: Application
    Filed: March 2, 2021
    Publication date: January 27, 2022
    Inventors: Seon Uk LEE, Kang Soo Han, Che Ho Lim, Don Chan Cho, Hak Bum Choi
  • Patent number: 11221520
    Abstract: A display device and a method for manufacturing the same. A display device includes: a first substrate; a partition wall which is disposed on the first substrate to define a first space and includes a top portion and side portions extending from the top portion; a reflective layer which covers the top portion and the side portions; an organic layer which is disposed on the reflective layer to overlap the top portion and has liquid repellency; and a wavelength conversion layer which is disposed in the first space.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: January 11, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Uk Kim, Jung Suk Bang, Sang Ji Park, Don Chan Cho
  • Patent number: 11061268
    Abstract: A display device and a method of manufacturing a display device, the display device having a plurality of pixels defined therein and including: a first substrate; a partition wall disposed on the first substrate to define openings corresponding to the plurality of pixels; and color conversion patterns disposed in the openings. The partition wall includes a light-transmitting structure having a groove and a first partition wall portion disposed in the groove and having a higher optical density than the light-transmitting structure.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Ji Park, Kang Uk Kim, Hae Ju Yun, Don Chan Cho, Young Je Cho
  • Patent number: 10606130
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first display substrate, a second display substrate which faces the first display substrate, and a liquid crystal layer which is disposed between the first display substrate and the second display substrate. The first display substrate comprises a first base substrate, a reflective electrode which is disposed on the first base substrate, and a pixel electrode which is disposed on the reflective electrode.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: March 31, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Tae Chae, Sung Jin Kim, Don Chan Cho
  • Publication number: 20190265526
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first display substrate, a second display substrate which faces the first display substrate, and a liquid crystal layer which is disposed between the first display substrate and the second display substrate. The first display substrate comprises a first base substrate, a reflective electrode which is disposed on the first base substrate, and a pixel electrode which is disposed on the reflective electrode.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Inventors: Kyung Tae CHAE, Sung Jin KIM, Don Chan CHO
  • Patent number: 10330987
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first display substrate, a second display substrate which faces the first display substrate, and a liquid crystal layer which is disposed between the first display substrate and the second display substrate. The first display substrate comprises a first base substrate, a reflective electrode which is disposed on the first base substrate, and a pixel electrode which is disposed on the reflective electrode.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Tae Chae, Sung Jin Kim, Don Chan Cho
  • Publication number: 20190025634
    Abstract: A display device and a method of manufacturing a display device, the display device having a plurality of pixels defined therein and including: a first substrate; a partition wall disposed on the first substrate to define openings corresponding to the plurality of pixels; and color conversion patterns disposed in the openings. The partition wall includes a light-transmitting structure having a groove and a first partition wall portion disposed in the groove and having a higher optical density than the light-transmitting structure.
    Type: Application
    Filed: November 28, 2017
    Publication date: January 24, 2019
    Inventors: Sang Ji PARK, Kang Uk KIM, Hae Ju YUN, Don Chan CHO, Young Je CHO
  • Publication number: 20190018286
    Abstract: A display device and a method for manufacturing the same. A display device includes: a first substrate; a partition wall which is disposed on the first substrate to define a first space and includes a top portion and side portions extending from the top portion; a reflective layer which covers the top portion and the side portions; an organic layer which is disposed on the reflective layer to overlap the top portion and has liquid repellency; and a wavelength conversion layer which is disposed in the first space.
    Type: Application
    Filed: February 7, 2018
    Publication date: January 17, 2019
    Inventors: Kang Uk Kim, Jung Suk Bang, Sang Ji Park, Don Chan Cho
  • Patent number: 10036918
    Abstract: The inventive concept relates to a light unit and a diffuser separated from the light source at a predetermined distance and having a cylindrical structure, and a cylindrical structure display device including the same.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: July 31, 2018
    Assignee: Samsung Display Co., ltd.
    Inventors: Seon Uk Lee, Nam Seok Roh, Woo Jae Lee, Hee-Keun Lee, Don Chan Cho
  • Publication number: 20180095305
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first display substrate, a second display substrate which faces the first display substrate, and a liquid crystal layer which is disposed between the first display substrate and the second display substrate. The first display substrate comprises a first base substrate, a reflective electrode which is disposed on the first base substrate, and a pixel electrode which is disposed on the reflective electrode.
    Type: Application
    Filed: June 29, 2017
    Publication date: April 5, 2018
    Inventors: Kyung Tae CHAE, Sung Jin KIM, Don Chan CHO
  • Patent number: 9874675
    Abstract: The present invention provides a quantum dot panel, including: a first substrate; a plurality of first cavities formed on the first substrate, so that adjacent ones of the cavities are separated from each other; a first roof layer covering the cavities so as to at least partially define the cavities; quantum dots contained in the first cavities; and a distribution layer in which the quantum dots are distributed and which is disposed within the first cavities. The quantum dot panel according to exemplary embodiments of the present invention includes quantum dots contained within predetermined structures formed on the substrate, thereby improving reliability of the quantum dot panel and simplifying the manufacturing process thereof.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Don Chan Cho, Nam Seok Roh, Yu Jin Kim, Sang Ji Park
  • Patent number: 9519190
    Abstract: A display device includes a substrate including a plurality of pixel areas, a thin film transistor positioned on the substrate, a first insulating layer positioned on the thin film transistor, a pixel electrode connected with the thin film transistor and positioned on the first insulating layer, a common electrode positioned on the pixel electrode and spaced apart from the pixel electrode by a microcavity, a second insulating layer positioned on the common electrode, a roof layer positioned on the second insulating layer, a thickness of the roof layer being about 4 ?m to about 50 ?m, an injection hole through the common electrode, the second insulating layer, and the roof layer, the injection hole exposing a part of the microcavity, a liquid crystal layer filling the microcavity, and an overcoat on the roof layer and extending into the injection hole, the overcoat sealing the microcavity.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 13, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Tae Chae, Seon Uk Lee, Chung Hyuk Lee, Tae Woo Lim, Don Chan Cho
  • Patent number: 9459479
    Abstract: A display device includes: a substrate; a thin film transistor; a pixel electrode; a common electrode; a liquid crystal layer; and an encapsulation layer. The thin film transistor is disposed on the substrate. The pixel electrode is disposed on the thin film transistor. The common electrode is disposed on the pixel electrode and is separated from the pixel electrode via a microcavity therebetween. The liquid crystal layer fills the microcavity. The encapsulation layer is configured to seal the microcavity, wherein the encapsulation layer has an opening positioned at a portion overlapping the microcavity.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Woo Jae Lee, Seong Gyu Kwon, Don Chan Cho
  • Publication number: 20160282690
    Abstract: A display device may include the following elements: a switching element comprising a source electrode, a drain electrode, and a gate electrode; a data line electrically connected to the source electrode; a first pixel electrode electrically connected to the drain electrode; a second pixel electrode immediately neighboring the first pixel electrode; a first common electrode and a second common electrode respectively overlapping the first pixel electrode and the second pixel electrode; a first auxiliary common electrode line and a second auxiliary common electrode line each extending parallel to the data line; and a first common electrode line and a second common electrode line respectively electrically connected through the first auxiliary common electrode line and the second auxiliary common electrode line to the first common electrode and the second common electrode.
    Type: Application
    Filed: September 28, 2015
    Publication date: September 29, 2016
    Inventors: Seok-Joon HONG, Sung Hwan WON, Byung-Gon KUM, Sang Il PARK, Don Chan CHO
  • Patent number: 9442328
    Abstract: A display device may include a substrate, a first roof layer formed of a material, a second roof layer formed of the material and spaced from the substrate, and a subpixel electrode disposed between the substrate and the first roof layer. The display device may further include a common electrode member disposed between the subpixel electrode and the first roof layer. The common electrode member may overlap the first roof layer in a first direction without extending beyond the first roof layer in a second direction. The first direction may be perpendicular to a surface of the substrate. The second direction may be parallel to the surface of the substrate. The display device may further include a liquid crystal set disposed between the subpixel electrode and the common electrode member.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: September 13, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, You Young Jin, Kyung Tae Chae, Don Chan Cho, Seok-Joon Hong
  • Patent number: 9411200
    Abstract: The present invention relates to a liquid crystal display including: an insulating substrate; and a plurality of pixels arranged in a matrix shape over the insulating substrate. The pixels include a display pixel disposed in a display region and a dummy pixel disposed in a dummy region, the dummy region is disposed outside the display region, and the display pixel includes a liquid crystal layer injected into a microcavity.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: August 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu Jin Kim, Seon Uk Lee, Tae Woo Lim, Don Chan Cho, Kyung Tae Chae
  • Publication number: 20160209572
    Abstract: The present invention provides a quantum dot panel, including: a first substrate; a plurality of first cavities formed on the first substrate, so that adjacent ones of the cavities are separated from each other; a first roof layer covering the cavities so as to at least partially define the cavities; quantum dots contained in the first cavities; and a distribution layer in which the quantum dots are distributed and which is disposed within the first cavities. The quantum dot panel according to exemplary embodiments of the present invention includes quantum dots contained within predetermined structures formed on the substrate, thereby improving reliability of the quantum dot panel and simplifying the manufacturing process thereof.
    Type: Application
    Filed: November 3, 2015
    Publication date: July 21, 2016
    Inventors: Don Chan CHO, Nam Seok ROH, Yu Jin KIM, Sang Ji PARK
  • Publication number: 20150219963
    Abstract: The inventive concept relates to a light unit and a diffuser separated from the light source at a predetermined distance and having a cylindrical structure, and a cylindrical structure display device including the same.
    Type: Application
    Filed: January 12, 2015
    Publication date: August 6, 2015
    Inventors: Seon Uk LEE, Nam Seok ROH, Woo Jae LEE, Hee-Keun LEE, Don Chan CHO