Patents by Inventor Kyung Bae Kim

Kyung Bae 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: 20230317734
    Abstract: A display device comprising a display area in which pixels are disposed, each of the pixels comprising a first electrode and a second electrode; and light emitting elements, a first dummy pixel area disposed outside the display area and in which dummy pixels are disposed, each of the dummy pixels comprising the first electrode, the second electrode and the light emitting elements, and a second dummy pixel area surrounding the display area and the first dummy pixel area and in which dummy electrode lines and dummy electrode patterns are disposed, wherein the dummy electrode lines are spaced apart from each other and are electrically connected to the second electrodes of the dummy pixels, and the dummy electrode patterns are disposed between the dummy electrode lines and are spaced apart from the first electrodes of the dummy pixels.
    Type: Application
    Filed: January 5, 2023
    Publication date: October 5, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Yong Hee LEE, Jin Seon KWAK, Kyung Bae KIM, Ji Hye LEE
  • Patent number: 11776973
    Abstract: A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: October 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Joon Kim, Kyung Bae Kim, Kyung Hoon Chung, Mee Hye Jung
  • Publication number: 20230307583
    Abstract: A display device includes pixels, and the pixels include: alignment electrodes provided on a base layer; a light emitting element provided on the alignment electrodes; and connection electrodes electrically connected to the light emitting element. The connection electrodes are electrically connected to some of the alignment electrodes through contact portions, and the number of the contact portions defined in each of the pixels is less than the number of the alignment electrodes.
    Type: Application
    Filed: November 28, 2022
    Publication date: September 28, 2023
    Inventors: Sung Chul HONG, Kyung Bae KIM, Do Yeong PARK
  • Publication number: 20230298511
    Abstract: A display device comprises a first line extending in a first direction, a second line spaced apart from the first line in a second direction, sub-pixels including emission areas between the first line and the second line, light-emitting elements in light-emitting element arrangement areas in the emission areas, a bank pattern overlapping with the first line and the second line, and defining openings corresponding to the light-emitting element arrangement areas, and a bank surrounding the emission areas, and overlapping with the first line, the second line, and the bank pattern.
    Type: Application
    Filed: December 20, 2022
    Publication date: September 21, 2023
    Inventors: Kyung Bae KIM, Yong Hee LEE, Sung Chul HONG
  • Publication number: 20230299121
    Abstract: A display device is provided. The display device comprises: a first electrode and a second electrode that are spaced from each other in a first direction; a plurality of light-emitting elements arranged between the first electrode and the second electrode; a pixel circuit including a capacitor that includes first to third capacitor electrodes stacked in order; an interlayer insulation layer arranged between the second capacitor electrode and the third capacitor electrode; a first area overlapping on the first capacitor electrode; and a second area that excludes the first area, wherein the interlayer insulation layer of the first area is thinner than the interlayer insulation layer in the second area.
    Type: Application
    Filed: July 28, 2021
    Publication date: September 21, 2023
    Inventors: Do Yeong PARK, Min Kyu WOO, Kyung Bae KIM
  • Publication number: 20230282776
    Abstract: A display device includes a bank disposed on a substrate, the bank surrounding at least a portion of each of a first emission area and a second emission area in a plan view; first alignment electrodes, at least a number of the first alignment electrodes being disposed in the first emission area; second alignment electrodes, at least a number of the second alignment electrodes being disposed in the second emission area; and a light emitting element disposed in each of the first emission area and the second emission area. An electrode most adjacent to the second emission area among the first alignment electrodes and an electrode most adjacent to the first emission area among the second alignment electrodes are spaced apart from each other with a dividing line disposed therebetween, and the dividing line overlaps the bank in a plan view.
    Type: Application
    Filed: February 8, 2023
    Publication date: September 7, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyung Bae KIM, Ji Hye LEE, Jong Woong CHANG
  • Publication number: 20230282795
    Abstract: A display device includes a substrate, first sub-pixels, second sub-pixels, and third sub-pixels on the substrate, the second sub-pixels being adjacent to the first sub-pixels, and third sub-pixels being spaced from the first sub-pixels with a respective one of the second sub-pixels therebetween, first electrodes and second electrodes on the substrate and located in the sub-pixels, first light-emitting elements, second light-emitting elements, and third light-emitting elements on the first electrodes and the second electrodes and located in the sub-pixels, each of the light-emitting elements comprising a first end and a second end opposite to the first end, and a first connection electrode, a second connection electrode, a third connection electrode, and a fourth connection electrode on the first to third light-emitting elements and located in the sub-pixels, wherein in the first sub-pixel, the first electrodes are extended in a first direction and are spaced from one another.
    Type: Application
    Filed: January 10, 2023
    Publication date: September 7, 2023
    Inventors: Kyung Bae KIM, Do Yeong PARK, Yong Hee LEE, Jong Woong CHANG, Ki Hyun PYO
  • Patent number: 11749658
    Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: September 5, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Lee, Kyung Bae Kim, Mee Hye Jung
  • Publication number: 20230275196
    Abstract: A display device includes a substrate including a display area and a non-display area surrounding the display area, a plurality of sub-pixels including a first sub-pixel and a second sub-pixel, an upper bank layer surrounding the sub-pixels and the display area, a plurality of color control members including a first wavelength conversion layer in the first sub-pixel and a second wavelength conversion layer in the second sub-pixel, a plurality of color filter layers including a first color filter layer on the first wavelength conversion layer, and a second color filter layer on the second wavelength conversion layer, and a third color filter layer, a dam member surrounding the display area in the non-display area, and a valley between the dam member and the upper bank layer and surrounding the display area. The third color filter layer is on the first color filter layer in the non-display area.
    Type: Application
    Filed: October 18, 2022
    Publication date: August 31, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Hye LEE, Jin Seon KWAK, Kyung Bae KIM, Yong Hee LEE
  • Publication number: 20230268469
    Abstract: A display device includes a first substrate including a display area and a non-display area, an inorganic layer disposed on the first substrate in the non-display area, color filter pattern layers disposed on the inorganic layer and spaced apart from each other, a second substrate facing the first substrate, a light blocking member disposed on a surface of the second substrate and not overlapping the color filter pattern layers in the non-display area, and a seal member disposed between the first substrate and the second substrate and contacting the color filter pattern layers and the inorganic layer.
    Type: Application
    Filed: October 20, 2022
    Publication date: August 24, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Hye LEE, Kyung Bae KIM, Yong Hee LEE
  • Publication number: 20230261142
    Abstract: A display device includes: a first insulating layer on electrodes; a plurality of light emitting elements on the electrodes in an emission area; a second insulating layer on the first insulating layer and the light emitting elements and having a plurality of openings partially overlapping the electrodes and the light emitting elements; and a plurality of connection electrodes on at least some of the electrodes, contacting the light emitting elements, and partially overlapping the openings. A first opening has a first side portion and a second side portion opposite to the first side portion with a greater width than the first side portion, and a first connection electrode overlapping the first opening has a first portion overlapping the first opening and a second portion having a greater width than the first portion and that does not partially overlap the first opening.
    Type: Application
    Filed: November 1, 2022
    Publication date: August 17, 2023
    Inventors: Do Yeong PARK, Kyung Bae KIM, Won Jun LEE
  • Patent number: 11730031
    Abstract: A display device comprises a pixel which comprises emission areas, a first voltage wiring and a second voltage wiring, which are outside the emission areas of the pixel and extend in a first direction and a second direction crossing the first direction, first electrodes and second electrodes which are respectively in the emission areas and extend in one direction, light emitting elements which are on the first and second electrodes, first contact electrodes which contact the first electrodes and the light emitting elements, and second contact electrodes which contact the second electrodes and the light emitting elements, and a first electrode line which overlaps the first voltage wiring and is outside the emission areas and a second electrode line which overlaps the second voltage wiring and is outside the emission areas, wherein each of the first electrodes and the first electrode line is electrically connected to the first voltage wiring, and each of the second electrodes and the second electrode line is el
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: August 15, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Lee, Kyung Bae Kim, No Kyung Park
  • Patent number: 11721706
    Abstract: A display device includes pixels disposed in a display area and including first and second pixels that are adjacent to each other in a first direction, and a first integrated bank pattern disposed between the first and second pixels. Each of the pixels includes a first electrode and a second electrode that are spaced apart from each other along the first direction in a light emitting area and extend in a second direction, a first bank pattern portion overlapping the first electrode, and a second bank pattern portion overlapping the second electrode. The first integrated bank pattern includes a second bank pattern portion disposed at the first pixel, a first bank pattern portion disposed at the second pixel, and a protrusion extending in the second direction in a boundary area between the first pixel and the second pixel.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: No Kyung Park, Kyung Bae Kim, Min Kyu Woo
  • Publication number: 20230246136
    Abstract: Provided herein is a display device and a method of manufacturing the same. The display device includes electrodes spaced apart from each other, a first insulating layer disposed on the electrodes and including a first opening, a light-emitting element disposed on the first insulating layer and disposed between adjacent ones of the electrodes, and organic patterns disposed between adjacent ones of the electrodes in the first opening.
    Type: Application
    Filed: December 21, 2022
    Publication date: August 3, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: No Kyung PARK, Kyung Bae KIM, Do Yeong PARK
  • Patent number: 11710432
    Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Joon Kim, Jun Ki Jeong, Kyung Hoon Chung, Kyung Bae Kim, Seung Chan Lee, Chong Chul Chai
  • Publication number: 20230207610
    Abstract: A display device includes a first electrode extending in a first direction, a second electrode spaced apart from the first electrode in a second direction, light emitting elements that are disposed on the first electrode and the second electrode, a first connection electrode electrically connected to a first end of the light emitting elements, and a second connection electrode electrically connected to a second end of the light emitting elements. The first connection electrode includes a first main portion disposed on the first electrode and in electrical contact with the light emitting elements, a first bypass portion partially spaced apart from the first main portion, and first connection portions electrically connecting the first main portion to the first bypass portion.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 29, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, Chong Chul CHAI, Kyung Bae KIM
  • Publication number: 20230207770
    Abstract: A display device includes: a substrate including first areas and second areas alternately arranged in a first direction in a plane view; a first electrode and a second electrode on the substrate and spaced apart from each other in a second direction crossing the first direction; a first insulation layer on the substrate and covering the first electrode and the second electrode; and a light emitting element on the first insulation layer and electrically connected to the first electrode and the second electrode, the first insulation layer having a first thickness in the first area and a second thickness thicker than the first thickness in the second area, and the light emitting element being located in the first area.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Inventors: Kyung Bae KIM, Ji Eun LEE, Chong Chul CHAI
  • Publication number: 20230140325
    Abstract: A display device includes a first electrode and a second electrode on a substrate, a pixel unit including a light emitting element on the first electrode and the second electrode, a first signal line electrically connected to the first electrode, and a second signal line electrically connected to the second electrode, wherein first power is configured to be provided to the first electrode from the first signal line, wherein second power is configured to be provided to the second electrode from the second signal line, wherein at least a portion of the first signal line and at least a portion of the second signal line extend in a first direction, and wherein at least another portion of the first signal line extends in a second direction that is not parallel to the first direction.
    Type: Application
    Filed: October 10, 2022
    Publication date: May 4, 2023
    Inventors: Yong Hee LEE, Jin Seon KWAK, Kyung Bae KIM, Ji Hye LEE, Ki Hyun PYO
  • Publication number: 20230126321
    Abstract: A display device includes a substrate and pixels. The substrate includes: a display area including pixel areas, each including a first area and a second area; and a non-display area enclosing at least one side of the display area. The pixels are disposed on the pixel areas, each pixel including light emitting elements. Each pixel further includes: a pixel circuit part disposed on the first area and including at least one transistor and at least one capacitor; and a display element part disposed on the second area and including an emission area to emit light. Each of the pixel circuit part and the display element part has a multi-layer structure including one or more conductive layers and one or more insulating layers. At least one layer of the pixel circuit part and at least one layer of the display element part are disposed in a same layer.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 27, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyung Bae KIM, Mee Hye JUNG, Chong Chul CHAI
  • Patent number: 11626552
    Abstract: A display device includes a substrate including a plurality of pixels; an electrode part including a first electrode in each pixel of the plurality of pixels on the substrate and a second electrode spaced apart from the first electrode on a same plane; a plurality of light emitting devices spaced apart from each other between the first electrode and the second electrode; a power line part including a first power line between the substrate and the first electrode, the first power line to receive a first driving power source, and a second power line between the substrate and the second electrode, the second power line to receive a second driving power source; and a shielding electrode line between the power line part and the first electrode, the shielding electrode line to receive the first driving power source.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: April 11, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Bae Kim, Min Jae Jeong, Chong Chui Chai