Patents by Inventor Geun-Tak Kim

Geun-Tak 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: 20240079526
    Abstract: A display device includes an organic layer, a first electrode and a second electrode disposed on the organic layer and spaced apart from each other, a first insulating layer disposed on the first electrode and the second electrode, and first light emitting elements disposed on the first insulating layer and disposed between the first electrode and the second electrode. An opening is formed by passing through at least one of the first electrode and the second electrode and the first insulating layer and exposes the organic layer.
    Type: Application
    Filed: August 24, 2023
    Publication date: March 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventor: Geun Tak KIM
  • Publication number: 20230327049
    Abstract: A display device comprises a light emitting area and a sub-area spaced apart from each other a first electrode and a second electrode disposed on a substrate and spaced apart from each other, a first insulating layer disposed on the first electrode and the second electrode, a bank layer disposed on the first insulating layer and disposed between the light emitting area and the sub-area, light emitting elements disposed on the first electrode and the second electrode, a first connection electrode electrically connected to an end of the light emitting element and a second connection electrode connected to another end of the light emitting element, and auxiliary electrodes disposed between the substrate and the bank layer and spaced apart from each other with the light emitting area and the sub-area disposed between the auxiliary electrodes.
    Type: Application
    Filed: October 31, 2022
    Publication date: October 12, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Geun Tak KIM, Sung Ho PARK
  • Publication number: 20230307485
    Abstract: A display device includes a bank layer disposed on a substrate and defining a light-emitting area and a sub-area, a first electrode and a second electrode spaced apart from each other and extending from the light-emitting area to the sub-area, a plurality of light-emitting elements disposed on the first electrode and the second electrode in the light-emitting area, a plurality of dummy light-emitting elements disposed on the first electrode and the second electrode in the sub-area, a first connection electrode in electrical contact with an end of each of the plurality of light-emitting elements, and a second connection electrode in electrical contact with another end of each of the plurality of light-emitting elements. The sub-area includes an isolation area in which each of the first electrode and the second electrode is disconnected, and the plurality of dummy light-emitting elements are not disposed in the isolation area.
    Type: Application
    Filed: October 31, 2022
    Publication date: September 28, 2023
    Applicant: Samsung Display Co., LTD.
    Inventor: Geun Tak KIM
  • Patent number: 11660865
    Abstract: An Inkjet printer includes a substrate on a stage. A print head unit is positioned above the stage and discharges an ink on the substrate. The print head unit includes a manifold for guiding movement of the ink in a first direction therein. A head block is under the manifold and includes a plurality of channels connected to the manifold and piezoelectric elements adjacent to the channels to discharge the ink through the channels. A nozzle unit is under the head block and includes nozzles corresponding to the channels. A dispersion plate is between the manifold and the head block and disperses the ink in a second direction intersecting the first direction to supply the ink to the head block. Resistance plates are between the dispersion plate and the head block, are formed parallel substantially to the second direction, and prevent the ink from flowing in the first direction.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: May 30, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Sub Kim, Geun Tak Kim, Jae Hoon Kim
  • Publication number: 20220109087
    Abstract: A display device includes a plurality of pixels, a first bank defining light emission regions of the plurality of pixels, a first electrode and a second electrode which are spaced apart from each other in each of the light emission regions, and a plurality of light emitting elements disposed between the first electrode and the second electrode. The first bank, the first electrode, and the second electrode include a same material.
    Type: Application
    Filed: May 3, 2021
    Publication date: April 7, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hang Jae LEE, Yuk Hyun NAM, Sung Jae YUN, Geun Tak KIM, Jae Hoon KIM
  • Publication number: 20220102584
    Abstract: An embodiment provides a display device including: a substrate; a first electrode and a second electrode spaced from each other on the substrate; and a first light emitting element and a second light emitting element between the first electrode and the second electrode, wherein the first light emitting element and the second light emitting element are electrically insulated from each other, and the first light emitting element and the second light emitting element have different lengths.
    Type: Application
    Filed: June 14, 2021
    Publication date: March 31, 2022
    Inventor: Geun Tak KIM
  • Publication number: 20220097370
    Abstract: An Inkjet printer includes a substrate on a stage. A print head unit is positioned above the stage and discharges an ink on the substrate. The print head unit includes a manifold for guiding movement of the ink in a first direction therein. A head block is under the manifold and includes a plurality of channels connected to the manifold and piezoelectric elements adjacent to the channels to discharge the ink through the channels. A nozzle unit is under the head block and includes nozzles corresponding to the channels. A dispersion plate is between the manifold and the head block and disperses the ink in a second direction intersecting the first direction to supply the ink to the head block. Resistance plates are between the dispersion plate and the head block, are formed parallel substantially to the second direction, and prevent the ink from flowing in the first direction.
    Type: Application
    Filed: August 16, 2021
    Publication date: March 31, 2022
    Inventors: Kyong Sub KIM, Geun Tak KIM, Jae Hoon KIM
  • Publication number: 20220102423
    Abstract: A display device includes subpixels, each of the subpixels including a first electrode extending in a first direction, a second electrode extending in the first direction and spaced apart from the first electrode in a second direction, and light emitting elements disposed on the first electrode and the second electrode and extending in a direction, wherein the subpixels includes a first subpixel including first light emitting elements having a first length in the direction and a second subpixel including second light emitting elements having a second length greater than the first length in the direction.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 31, 2022
    Applicant: Samsung Display Co., LTD.
    Inventor: Geun Tak KIM
  • Patent number: 11164922
    Abstract: A light-emitting display device includes a pixel defining layer with an opening that exposes a first electrode, a hole injection layer on the first electrode, a lyophilic pattern on the hole injection layer in the opening, a hole transport layer on the lyophilic pattern, a light-emitting layer on the hole transport layer, and a second electrode on the light-emitting layer. The lyophilic pattern includes a first part adjacent to a first sidewall of the opening and a second part adjacent to a second sidewall of the opening. A distance from a top surface of the hole injection layer to an edge of a top surface of the second part corresponds to a first height. A distance from the top surface of the hole injection layer to a top surface of the first part corresponds to a second height. The first height is lower than the second height.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Geun Tak Kim
  • Publication number: 20190393287
    Abstract: A light-emitting display device includes a pixel defining layer with an opening that exposes a first electrode, a hole injection layer on the first electrode, a lyophilic pattern on the hole injection layer in the opening, a hole transport layer on the lyophilic pattern, a light-emitting layer on the hole transport layer, and a second electrode on the light-emitting layer. The lyophilic pattern includes a first part adjacent to a first sidewall of the opening and a second part adjacent to a second sidewall of the opening. A distance from a top surface of the hole injection layer to an edge of a top surface of the second part corresponds to a first height. A distance from the top surface of the hole injection layer to a top surface of the first part corresponds to a second height. The first height is lower than the second height.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventor: Geun Tak KIM
  • Patent number: 10424624
    Abstract: A light-emitting display device includes a pixel defining layer with an opening that exposes a first electrode, a hole injection layer on the first electrode, a lyophilic pattern on the hole injection layer in the opening, a hole transport layer on the lyophilic pattern, a light-emitting layer on the hole transport layer, and a second electrode on the light-emitting layer. The lyophilic pattern includes a first part adjacent to a first sidewall of the opening and a second part adjacent to a second sidewall of the opening. A distance from a top surface of the hole injection layer to an edge of a top surface of the second part corresponds to a first height. A distance from the top surface of the hole injection layer to a top surface of the first part corresponds to a second height. The first height is lower than the second height.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Geun Tak Kim
  • Patent number: 9941336
    Abstract: The light emitting display device comprises: a substrate including a plurality of pixels that are arranged in a first direction and a second direction that crosses the first direction; a first electrode for each pixel on the substrate; a pixel defining layer on the substrate, the pixel defining layer having an opening for exposing the first electrode; a hole injection layer on the first electrode; a lyophilic pattern extending on the hole injection layer to cover the first electrode and the pixel defining layer that are on a same line in the first direction, and extending up to an outer region of outermost pixels of the plurality of pixels in the first direction; a hole transport layer on the lyophilic pattern; a light emitting layer on the hole transport layer; and a second electrode on the light emitting layer, wherein the lyophilic pattern includes a first lyophilic pattern having a plurality of grooves on one end portion thereof in the first direction and a second lyophilic pattern having a plurality of g
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 10, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Geun Tak Kim, Kyoung Wook Min
  • Patent number: 9831455
    Abstract: A light-emitting display device includes a substrate having a plurality of pixels. A first electrode is provided on the substrate for each pixel, and a pixel defining layer defines each of the pixels. The pixel defining layer has an opening to expose the first electrode. A charge injection layer is on the first electrode, and a surface processing layer is on the charge injection layer. The surface processing layer extends from inside the opening of the pixel defining layer to a top surface of the pixel defining layer. The surface processing layer including a plurality of grooves in a portion extending on the top surface of the pixel defining layer. A charge transport layer is on the surface processing layer, a light-emitting layer is on the charge transport layer, and a second electrode is on the light-emitting layer.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Geun Tak Kim
  • Patent number: 9704935
    Abstract: A light-emitting display device, including a substrate including a plurality of pixels; a first electrode on the substrate in each of the pixels; a pixel defining layer on the substrate, the pixel defining layer having an opening exposing the first electrode and including a side surface having a first part, a second part located on the first part, and a boundary part located between the first part and the second part; a lyophobic pattern in the boundary part of the side surface of the pixel defining layer in the opening of the pixel defining layer; an organic layer on the first electrode, the organic layer including a light-emitting layer under the lyophobic pattern in the opening of the pixel defining layer; and a second electrode on the organic layer.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Geun Tak Kim
  • Patent number: 9627458
    Abstract: An organic light-emitting display panel and a method of fabricating the same, the panel including a base substrate; a first electrode layer including a plurality of first electrodes arranged on the base substrate; a pixel-defining layer including partition walls that extend from the base substrate and that define a plurality of pixels; an organic light-emitting layer including a plurality of organic light-emitting patterns in the pixels, respectively; and a second electrode layer on the organic light-emitting layer, wherein the organic light-emitting layer includes a plurality of primer patterns, the plurality of primer patterns being respectively formed in the pixels, being separate from one another, and respectively overlapping the first electrodes, at least one of the primer patterns has an area different area from an area of the other primer patterns, and the primer patterns have an affinity for liquid that is higher than an affinity for liquid of the pixel-defining layer.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Geun Tak Kim
  • Publication number: 20170104173
    Abstract: A light-emitting display device includes a substrate having a plurality of pixels. A first electrode is provided on the substrate for each pixel, and a pixel defining layer defines each of the pixels. The pixel defining layer has an opening to expose the first electrode. A charge injection layer is on the first electrode, and a surface processing layer is on the charge injection layer. The surface processing layer extends from inside the opening of the pixel defining layer to a top surface of the pixel defining layer. The surface processing layer including a plurality of grooves in a portion extending on the top surface of the pixel defining layer. A charge transport layer is on the surface processing layer, a light-emitting layer is on the charge transport layer, and a second electrode is on the light-emitting layer.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Inventor: Geun Tak KIM
  • Publication number: 20170098687
    Abstract: The light emitting display device comprises: a substrate including a plurality of pixels that are arranged in a first direction and a second direction that crosses the first direction; a first electrode for each pixel on the substrate; a pixel defining layer on the substrate, the pixel defining layer having an opening for exposing the first electrode; a hole injection layer on the first electrode; a lyophilic pattern extending on the hole injection layer to cover the first electrode and the pixel defining layer that are on a same line in the first direction, and extending up to an outer region of outermost pixels of the plurality of pixels in the first direction; a hole transport layer on the lyophilic pattern; a light emitting layer on the hole transport layer; and a second electrode on the light emitting layer, wherein the lyophilic pattern includes a first lyophilic pattern having a plurality of grooves on one end portion thereof in the first direction and a second lyophilic pattern having a plurality of g
    Type: Application
    Filed: April 20, 2016
    Publication date: April 6, 2017
    Inventors: Geun Tak KIM, Kyoung Wook MIN
  • Publication number: 20160380224
    Abstract: A light-emitting display device includes a pixel defining layer with an opening that exposes a first electrode, a hole injection layer on the first electrode, a lyophilic pattern on the hole injection layer in the opening, a hole transport layer on the lyophilic pattern, a light-emitting layer on the hole transport layer, and a second electrode on the light-emitting layer. The lyophilic pattern includes a first part adjacent to a first sidewall of the opening and a second part adjacent to a second sidewall of the opening. A distance from a top surface of the hole injection layer to an edge of a top surface of the second part corresponds to a first height. A distance from the top surface of the hole injection layer to a top surface of the first part corresponds to a second height. The first height is lower than the second height.
    Type: Application
    Filed: January 28, 2016
    Publication date: December 29, 2016
    Inventor: Geun Tak KIM
  • Patent number: 9530827
    Abstract: A light-emitting display device includes a substrate having a plurality of pixels. A first electrode is provided on the substrate for each pixel, and a pixel defining layer defines each of the pixels. The pixel defining layer has an opening to expose the first electrode. A charge injection layer is on the first electrode, and a surface processing layer is on the charge injection layer. The surface processing layer extends from inside the opening of the pixel defining layer to a top surface of the pixel defining layer. The surface processing layer including a plurality of grooves in a portion extending on the top surface of the pixel defining layer. A charge transport layer is on the surface processing layer, a light-emitting layer is on the charge transport layer, and a second electrode is on the light-emitting layer.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Geun Tak Kim
  • Publication number: 20160284776
    Abstract: A light-emitting display device, including a substrate including a plurality of pixels; a first electrode on the substrate in each of the pixels; a pixel defining layer on the substrate, the pixel defining layer having an opening exposing the first electrode and including a side surface having a first part, a second part located on the first part, and a boundary part located between the first part and the second part; a lyophobic pattern in the boundary part of the side surface of the pixel defining layer in the opening of the pixel defining layer; an organic layer on the first electrode, the organic layer including a light-emitting layer under the lyophobic pattern in the opening of the pixel defining layer; and a second electrode on the organic layer.
    Type: Application
    Filed: October 16, 2015
    Publication date: September 29, 2016
    Inventor: Geun Tak KIM