Patents by Inventor Keun Woo Kim

Keun Woo Kim 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: 20240145483
    Abstract: A display device includes a substrate, a semiconductor layer disposed on the substrate, and including a first channel portion, a second channel portion, a connecting portion disposed between the first channel portion and the second channel portion, and electrode regions, a first insulating layer disposed on the semiconductor layer, a gate conductor disposed on the first insulating layer and including a first gate electrode overlapping the first channel portion and a second gate electrode overlapping the second channel portion, signal lines disposed on the substrate, a first electrode electrically connected to at least one of electrode regions of the semiconductor layer, an emission layer disposed on the first electrode, and a second electrode disposed on the emission layer, and the first channel portion and the second channel portion of the semiconductor layer each have a first width greater than a second width of the connecting portion.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 2, 2024
    Inventors: Han Bit KIM, Mee Jae KANG, Keun Woo KIM, Doo-Na KIM, Sang Sub KIM, Do Kyeong LEE, Jae Hwan CHU
  • Patent number: 11969397
    Abstract: The present invention relates to a composition for preventing or treating transplantation rejection or a transplantation rejection disease, comprising a novel compound and a calcineurin inhibitor. A co-administration of the present invention 1) reduces the activity of pathogenic Th1 cells or Th17 cells, 2) increases the activity of Treg cells, 3) has an inhibitory effect against side effects, such as tissue damage, occurring in the sole administration thereof, 4) inhibits various pathogenic pathways, 5) inhibits the cell death of inflammatory cells, and 6) increases the activity of mitochondria, in an in vivo or in vitro allogenic model, a transplantation rejection disease model, a skin transplantation model, and a liver-transplanted patient, and thus inhibits transplantation rejection along with mitigating side effects possibly occurring in the administration of a conventional immunosuppressant alone.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 30, 2024
    Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Mi-La Cho, Dong-Yun Shin, Jong-Young Choi, Chul-Woo Yang, Sung-Hwan Park, Seon-Yeong Lee, Min-Jung Park, Joo-Yeon Jhun, Se-Young Kim, Hyeon-Beom Seo, Jae-Yoon Ryu, Keun-Hyung Cho
  • Patent number: 11961797
    Abstract: A semiconductor device structure, for example a 3D structure, and a method for fabricating a semiconductor device. As non-limiting examples, various aspects of this disclosure provide various semiconductor package structures, and methods for manufacturing thereof, that comprise interposer, interlayer, and/or heat dissipater configurations that provide for low cost, increased manufacturability, and high reliability.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 16, 2024
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Keun Soo Kim, Jae Yun Kim, Byoung Jun Ahn, Dong Soo Ryu, Dae Byoung Kang, Chel Woo Park
  • Publication number: 20240119949
    Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 11, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeong Il SEO, Seung Kwon BEACK, Dae Young JANG, Kyeong Ok KANG, Tae Jin PARK, Yong Ju LEE, Keun Woo CHOI, Jin Woong KIM
  • Publication number: 20240121984
    Abstract: A display device including a pixel electrode, and a pixel circuit electrically connected to the pixel electrode. The pixel circuit includes a first transistor including sub-transistors electrically connected to each other through a first common node, a second transistor including sub-transistors electrically connected to each other through a second common node, a first electrode electrically connecting the first common node with the second common node, and a second electrode disposed to overlap the first electrode and electrically connected to a direct current power source.
    Type: Application
    Filed: August 25, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Han Bit KIM, Keun Woo KIM, Doo Na KIM, Sang Sub KIM, Chan Yeob SEOL, Jae Hwan CHU, Sang Gun CHOI
  • Publication number: 20240107808
    Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 28, 2024
    Inventors: Keun Woo KIM, Tae Wook KANG, Han Bit KIM, Bum Mo SUNG, Do Kyeong LEE, Jae Seob LEE
  • Patent number: 11908871
    Abstract: A flexible display device includes: a flexible substrate; a semiconductor layer on the flexible substrate, the semiconductor layer including a polycrystalline semiconductor; a gate insulation layer on the semiconductor layer; and a gate electrode on the gate insulation layer, the gate electrode overlapping a channel region of the semiconductor layer in a plan view, wherein the semiconductor layer includes a source region and a drain region that are at opposite sides of the channel region, wherein the channel region includes a first region contacting the source region and a second region contacting the drain region, and wherein a channel width of the first region is greater than a channel width of the second region.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Keun Woo Kim
  • Patent number: 11881487
    Abstract: A display device includes a substrate, a semiconductor layer disposed on the substrate, and including a first channel portion, a second channel portion, a connecting portion disposed between the first channel portion and the second channel portion, and electrode regions, a first insulating layer disposed on the semiconductor layer, a gate conductor disposed on the first insulating layer and including a first gate electrode overlapping the first channel portion and a second gate electrode overlapping the second channel portion, signal lines disposed on the substrate, a first electrode electrically connected to at least one of electrode regions of the semiconductor layer, an emission layer disposed on the first electrode, and a second electrode disposed on the emission layer, and the first channel portion and the second channel portion of the semiconductor layer each have a first width greater than a second width of the connecting portion.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Han Bit Kim, Mee Jae Kang, Keun Woo Kim, Doo-Na Kim, Sang Sub Kim, Do Kyeong Lee, Jae Hwan Chu
  • Patent number: 11871617
    Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keun Woo Kim, Tae Wook Kang, Han Bit Kim, Bum Mo Sung, Do Kyeong Lee, Jae Seob Lee
  • Publication number: 20230386376
    Abstract: A pixel includes: a light emitting element; a first transistor including a first electrode connected to a first power line, to which a voltage of the first power supply is supplied, where the first transistor controls, in response to a voltage of a first node connected to a gate electrode thereof, current flowing from the first power line to a second power line, to which a voltage of a second power supply is supplied, via the light emitting element; a second transistor connected between a data line and a second node, where the second transistor is turned on when a first scan signal is supplied thereto through a first scan line; a first capacitor connected between the first node and the second node; and a connector electrically connected between the first node to the second node.
    Type: Application
    Filed: January 19, 2023
    Publication date: November 30, 2023
    Inventor: Keun Woo KIM
  • Patent number: 11793039
    Abstract: An embodiment of a display device includes a display panel having a flexible characteristic and a rear passivation layer disposed on a rear surface of the display panel and including an opening, wherein a pixel is formed in an area of the display panel corresponding to the opening. The display panel includes: a flexible substrate including a polyimide layer and a barrier layer disposed on the polyimide layer; a driving transistor and a fifth transistor disposed on the substrate and including a polycrystalline semiconductor layer; a light emitting diode receiving an output current of the driving transistor; and a bottom metal layer disposed between the polyimide layer and the polycrystalline semiconductor layer in a cross-sectional view and disposed around a channel of the driving transistor in a plan view.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Keun Woo Kim
  • Patent number: 11785805
    Abstract: A display device includes: a plurality of pixels on a substrate, each of the plurality of pixels including a light emitting element and a pixel circuit configured to drive the light emitting element, wherein the pixel circuit of each of the plurality of pixels comprises: a first-first transistor configured to control a driving current flowing through the light emitting element based on a voltage of a first node; a first-second transistor connected in series with the first-first transistor and configured to control the driving current based on a voltage of a second node; a second transistor configured to selectively supply a data voltage to a third node which is a first electrode of the first-first transistor; a third-first transistor connected between the first node and a fourth node which is a second electrode of the first-second transistor; and a third-second transistor connected between the second node and the fourth node.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: October 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun Woo Kim, Tae Wook Kang
  • Publication number: 20230317701
    Abstract: A light emitting display device includes: a first pixel which displays a first color, and includes a first light emitting diode and a first pixel circuit portion connected to the first light emitting diode; and a second pixel which displays a second color, and includes a second light emitting diode and a second pixel circuit portion connected to the second light emitting diode. The first pixel circuit portion includes an initialization transistor which transmits an initialization voltage to the first light emitting diode, and the initialization transistor of the first pixel circuit portion includes a first gate electrode and a second gate electrode which receive a gate-on voltage. The second pixel circuit portion includes an initialization transistor which transmits the initialization voltage to the second light emitting diode, and the initialization transistor of the second pixel circuit portion includes a first gate electrode which receives the gate-on voltage.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 5, 2023
    Inventor: Keun Woo KIM
  • Publication number: 20230317008
    Abstract: A display device includes: a sub-pixel connected to a k-th scan line and a j-th data line crossing the k-th scan line, wherein the sub-pixel includes: a light emitting element; a driving transistor configured to provide a driving current to the light emitting element according to a data voltage applied to a gate electrode thereof and including a first lower line; a first sub-transistor and a second sub-transistor connected to the gate electrode of the driving transistor and connected to each other in series; and a first node connecting the first sub-transistor and the second sub-transistor to each other, and the first node is connected to the first lower line.
    Type: Application
    Filed: January 10, 2023
    Publication date: October 5, 2023
    Inventor: Keun Woo KIM
  • Publication number: 20230285767
    Abstract: The present invention disclosed herein relates to a treatment device using a magnetic field, which includes a coil generating a pulse magnetic field and a plurality of cooling structures. In accordance with an embodiment of the present invention, a treatment device using a magnetic field includes: a magnetic field generating coil disposed below a close contact surface that closely contacts a portion of a body; a first blower and a second blower disposed symmetrically with respect to the magnetic field generating coil to supply a fluid toward the magnetic field generating coil; and a duct that provides a seated surface on which the magnetic field generating coil is seated and guides the fluid supplied from the first blower and the second blower toward the magnetic field generating coil, and the duct includes an opening formed by opening at least a portion of an area forming the seated surface.
    Type: Application
    Filed: November 23, 2022
    Publication date: September 14, 2023
    Inventors: Ghi Young KIM, Keun Woo KIM, Chae Won HEO
  • Publication number: 20230267884
    Abstract: A display device includes a substrate, a first active layer including a driving active pattern of a driving transistor disposed on the substrate and a first active pattern of a first transistor disposed on the substrate, a second active layer including a driving sub-active pattern disposed on the driving active pattern of the first active layer, a first insulating film disposed on the first active layer and the second active layer, a driving gate electrode disposed on the first insulating film and overlapping the driving sub-active pattern, and a first gate electrode disposed on the first insulating film and overlapping the first active pattern, where a thickness of the driving active pattern is greater than a thickness of the driving sub-active pattern.
    Type: Application
    Filed: December 15, 2022
    Publication date: August 24, 2023
    Inventor: Keun Woo KIM
  • Patent number: 11727880
    Abstract: A pixel may include a light-emitting element, a first transistor including first and second gate electrodes, a second transistor which is connected between a data line and the second gate electrode, and turned on in response to a third scan signal, a third transistor which is connected between first and second nodes, and turned on in response to a second scan signal, a fourth transistor which is connected between the first node and a third power line, and turned on in response to a first scan signal, a fifth transistor which is connected between the first power line and the first transistor, and turned off in response to a first emission control signal, a sixth transistor which is turned off in response to a second emission control signal, and a first capacitor connected between the first power line and the first node.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Keun Woo Kim
  • Publication number: 20230223478
    Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 13, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Sub KIM, Keun Woo KIM, Ji Yeong SHIN, Yong Su LEE, Myoung Geun CHA, Ki Seok CHOI, Sang Gun CHOI
  • Publication number: 20230207362
    Abstract: Disclosed is an article transfer apparatus. The article transfer apparatus includes a vehicle that travels along a driving rail installed on a ceiling, a hoist module that picks up an article-to-be-transferred, a vehicle body, on which the hoist module is mounted and which is connected to the vehicle, a drop preventing member provided in the vehicle body, and that prevents the article-to-be-transferred from dropping while the vehicle travels, and a controller that receives loading/unloading information of the article-to-be transferred to determine a size of the article-to-be-transferred, and to drive the drop preventing member according to a size of the article-to-be transferred.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Won Young KIM, Keun Woo KIM, Tae Uk PARK, Hyuk Jae SUNG
  • Publication number: 20230206841
    Abstract: An embodiment provides a display device including: a substrate; a plurality of transistors disposed on the substrate, each of the plurality of transistors including a semiconductor layer disposed on the substrate, and a gate electrode disposed on the semiconductor layer; and a light emitting element positioned on the data conductor layer, wherein the plurality of transistors include a driving transistor that transmits a driving voltage to the light emitting element and a compensation transistor that is turned on in response to a scan signal, the semiconductor layer includes a first portion having a first thickness and a second portion having a second thickness thinner than the first thickness, and the driving transistor is disposed in the first portion of the semiconductor layer.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 29, 2023
    Inventor: Keun Woo KIM