Patents by Inventor Kang-Soo Han

Kang-Soo Han 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: 20250033354
    Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.
    Type: Application
    Filed: October 15, 2024
    Publication date: January 30, 2025
    Inventors: Dong Jun LEE, Che Ho LIM, Kang Soo HAN, Ho-Yong SHIN, Gyeong Eun EOH, Jun Hwi LIM
  • Publication number: 20250008815
    Abstract: A display device according to an embodiment includes: a substrate including a display area and a non-display area; a transistor disposed on the substrate; a light emitting element electrically connected to the transistor; an encapsulation layer disposed on the light emitting element; a bank located on the encapsulation layer and defining an opening therein; a color conversion layer located in the opening; a filling layer located on the bank and the color conversion layer; and a transmission layer and a first spacer, which are located on the filling layer.
    Type: Application
    Filed: February 27, 2024
    Publication date: January 2, 2025
    Inventors: Sun-Kyu JOO, Cheol SHIN, Ho-Yong SHIN, Keun Chan OH, Dokyung YOUN, Kwang-Min LEE, Che Ho LIM, Woo-Man JI, Kang Soo HAN, Tae Hyung HWANG
  • Patent number: 12166158
    Abstract: A color conversion panel includes light blocking members spaced apart from each other on a substrate; and a first color conversion layer, a second color conversion layer, and a transmission layer respectively disposed between the light blocking members, wherein the transmission layer includes first quantum dots, and the first quantum dots convert incident light into light having a wavelength in a range of about 480 nm to about 530 nm.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: December 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeong Ki Kim, Kang Soo Han, Jong-Hoon Kim, Hwa Yeul Oh, Hye Jun Woo
  • Publication number: 20240379913
    Abstract: A display device includes a substrate including a display area and a non-display area, a transistor disposed on the substrate, a light emitting diode electrically connected to the transistor, a color conversion layer and a transmission layer disposed on the light emitting diode, and a partition wall disposed on the light emitting diode, where the partition wall includes a first partition wall disposed in the display area between the color conversion layer and the transmission layer and a second partition wall disposed in the non-display area, and the partition wall includes a first part having a first length from a first end to a boundary of the display area and the non-display area, and a second part having a second length from a second end to a boundary of the display area and the non-display area, where the first length is greater than the second length.
    Type: Application
    Filed: January 6, 2024
    Publication date: November 14, 2024
    Inventors: Che Ho LIM, Kang Uk KIM, Ho-Yong SHIN, Kwang-Min LEE, Kang Soo HAN, Seok-Joon HONG
  • Publication number: 20240381732
    Abstract: A display device that includes a first substrate including a display area and a peripheral area disposed on a side of the display area, a second substrate disposed to face the first substrate, the second substrate including a first surface and a second surface, a pixel circuit layer disposed on the first substrate, a light emitting element disposed on the pixel circuit layer and in the display area, a color conversion layer disposed on the first surface of the second substrate, at least one bank pattern disposed on the first surface of the second substrate, a spacer disposed on the first surface of the second substrate, the spacer enclosed by the at least one bank pattern, a protective layer overlapping the color conversion layer, the at least one bank pattern, and the spacer, and a sealant overlapping at least a portion of the spacer.
    Type: Application
    Filed: January 30, 2024
    Publication date: November 14, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Min Uk KIM, Bo Hwa KIM, Che Ho LIM, Kang Uk KIM, Kwang Min LEE, Kang Soo HAN
  • Patent number: 12122157
    Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: October 22, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Jun Lee, Che Ho Lim, Kang Soo Han, Ho-Yong Shin, Gyeong Eun Eoh, Jun Hwi Lim
  • Patent number: 12113147
    Abstract: A method for inkjet printing includes setting a target volume and a target concentration of ink discharged to a pixel, measuring a volume and a concentration of a liquid drop for each of nozzles, selecting first nozzle groups for achieving the target volume, from a volume pool of the liquid drop for each of the nozzles, selecting second nozzle groups for achieving the target concentration, from the first nozzle groups, selecting recipes by combining brightness trend lines, from the second nozzle groups, performing a printing simulation for each of the recipes to select a final recipe, and performing inkjet printing by using the final recipe.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: October 8, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Soo Han, Ju Yong Kim, Ho Yong Shin, Gyeong Eun Eoh, Jun Hwi Lim
  • Patent number: 12066647
    Abstract: A polarizer includes a buffer member and linear metal patterns. The buffer member includes protrusions. Each protrusion has downwardly-increasing width. The buffer member is formed of polymer. The linear metal patterns, spaced apart from each other, are extended in a first direction. Each linear metal pattern covers a respective protrusion.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: August 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Kang-Soo Han, Eun-Jung Kim, Gug-Rae Jo, Hyung-Bin Cho
  • Publication number: 20240222572
    Abstract: A display device includes a first light emitting element diode and a second light emitting diode which are disposed on a first base substrate, a bank layer disposed under a second base substrate facing the first base substrate, including a first opening overlapping the first light emitting diode in a plan view and a second opening overlapping the second light emitting diode in a plan view, and having a first part and a second part, a transmitting layer disposed inside the first opening, and a first color conversion layer disposed inside the second opening. The first part and the second part have different thicknesses in a thickness direction of the second base substrate.
    Type: Application
    Filed: October 26, 2023
    Publication date: July 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: KANGUK KIM, MIN-UK KIM, KWANG-MIN LEE, JUNHWI LIM, KANG SOO HAN
  • Patent number: 12023938
    Abstract: An inkjet printing method includes moving an inkjet head to discharge ink to a substrate including printing row areas, discharging ink to a first printing row area and a second printing row area among the printing row areas, discharging ink to a third printing row area among the printing row areas and the second printing row area, and discharging ink only to the first printing row area.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: July 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwa Yeul Oh, Kanguk Kim, Jeongki Kim, Jong-Hoon Kim, Jiseong Yang, Kang Soo Han
  • Publication number: 20240099103
    Abstract: A display device includes a display area, a peripheral area disposed outside the display area, and a sealing area disposed outside the peripheral area, a first base substrate, a second base substrate facing the first base substrate, a color filter layer disposed under the first base substrate, a bank layer disposed under the color filter layer, and a sealing member disposed between the bank layer and the second base substrate in the sealing area. The bank layer includes bank patterns defining an opening disposed at least in the sealing area, and the sealing member fills the opening. Each of the bank patterns includes a first surface adjacent to the color filter layer and a second surface opposite to the first surface and adjacent to the sealing member. A width of the second surface is greater than a width of the first surface.
    Type: Application
    Filed: April 28, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: KWANG-MIN LEE, JUNHWI LIM, MIN-UK KIM, HO-YONG SHIN, SEON UK LEE, KANG SOO HAN
  • Patent number: 11760097
    Abstract: An inkjet circulation apparatus may include at least one inkjet printer including a supplier into which an ink is injected, a discharger connected to the supplier, and discharging the ink injected from the supplier, and a drain connected to the discharger and the supplier, and injecting the ink in the discharger into the supplier, at least one collector capable of containing an inert gas and the ink discharged from the discharger, and a contact member sealing between the discharger and the collector.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Soo Han, Seon Uk Lee, Kanguk Kim, Ho-Yong Shin, Cheho Lim, Donchan Cho
  • Patent number: 11719871
    Abstract: A polarizer includes a buffer member and linear metal patterns. The buffer member includes protrusions. Each protrusion has downwardly-increasing width. The buffer member is formed of polymer. The linear metal patterns, spaced apart from each other, are extended in a first direction. Each linear metal pattern covers a respective protrusion.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-Soo Han, Eun-Jung Kim, Gug-Rae Jo, Hyung-Bin Cho
  • Publication number: 20230134046
    Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.
    Type: Application
    Filed: July 20, 2022
    Publication date: May 4, 2023
    Inventors: Dong Jun LEE, Che Ho LIM, Kang Soo HAN, Ho-Yong SHIN, Gyeong Eun EOH, Jun Hwi LIM
  • 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: 20230019886
    Abstract: A method of manufacturing a display device, which is provided using an inkjet apparatus that provides a liquid composition including a scatterer, includes performing j scanning stages to provide a first composition to i unit display areas among n unit display areas (j is a natural number equal to or greater than 2), and performing a first compensation-scanning stage to provide the first composition to first to (i?1)-th unit display areas among the n unit display areas. The i unit areas of the first head unit provide the first composition to the first unit display area to an i-th unit display area among the n unit display areas in a first scanning stage among the j scanning stages. The first head unit is shifted in the second direction by one unit display area in every scanning stage of the j scanning stages.
    Type: Application
    Filed: April 22, 2022
    Publication date: January 19, 2023
    Inventors: KANG SOO HAN, KANGUK KIM, DONGJUN LEE, SONGEE LEE, Sangyeon HWANG
  • Publication number: 20230011658
    Abstract: A method for inkjet printing includes setting a target volume and a target concentration of ink discharged to a pixel, measuring a volume and a concentration of a liquid drop for each of nozzles, selecting first nozzle groups for achieving the target volume, from a volume pool of the liquid drop for each of the nozzles, selecting second nozzle groups for achieving the target concentration, from the first nozzle groups, selecting recipes by combining brightness trend lines, from the second nozzle groups, performing a printing simulation for each of the recipes to select a final recipe, and performing inkjet printing by using the final recipe.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 12, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kang Soo HAN, Ju Yong KIM, Ho Yong SHIN, Gyeong Eun EOH, Jun Hwi LIM
  • Publication number: 20220359798
    Abstract: A color conversion substrate includes: a bank having a first open region and a second open region; a color conversion layer in the first opening region, the color conversion layer including color conversion particles; a first partition wall partitioning the second opening region into a central region and a peripheral region surrounding the central region, the first partition wall having a polygonal shape with n vertices in a plan view where n is a natural number greater than or equal to 3; and n second partition walls extending from the n vertices of the first partition wall to an edge of the second opening region, respectively, to partition the peripheral region into n sub-regions.
    Type: Application
    Filed: May 4, 2022
    Publication date: November 10, 2022
    Inventors: JONG-HOON KIM, JANG-IL KIM, JEONGKI KIM, KEUNCHAN OH, KANG SOO HAN, TAE HYUNG HWANG
  • Publication number: 20220231200
    Abstract: A color conversion panel includes light blocking members spaced apart from each other on a substrate; and a first color conversion layer, a second color conversion layer, and a transmission layer respectively disposed between the light blocking members, wherein the transmission layer includes first quantum dots, and the first quantum dots convert incident light into light having a wavelength in a range of about 480 nm to about 530 nm.
    Type: Application
    Filed: November 15, 2021
    Publication date: July 21, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Jeong Ki KIM, Kang Soo HAN, Jong-Hoon KIM, Hwa Yeul OH, Hye Jun WOO
  • Publication number: 20220219462
    Abstract: An inkjet printing method includes moving an inkjet head to discharge ink to a substrate including printing row areas, discharging ink to a first printing row area and a second printing row area among the printing row areas, discharging ink to a third printing row area among the printing row areas and the second printing row area, and discharging ink only to the first printing row area.
    Type: Application
    Filed: October 7, 2021
    Publication date: July 14, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hwa Yeul OH, Kanguk KIM, Jeongki KIM, Jong-Hoon KIM, Jiseong YANG, Kang Soo HAN