Patents by Inventor Jin-Woo Choi

Jin-Woo Choi 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).

  • DISPLAY DEVICE
    Publication number: 20220352419
    Abstract: A display device includes a first electrode disposed on a substrate; a light emitting element disposed on the first electrode, the light emitting element being electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode being electrically connected to the light emitting element; a meta structure disposed on the second electrode, the meta structure overlapping the light emitting element; and a bank pattern disposed on the substrate, the bank pattern being spaced apart from the light emitting element.
    Type: Application
    Filed: December 22, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Byung Choon YANG, Sung Kook PARK, Dae Ho SONG, Hyung Il JEON, Joo Woan CHO, Jin Woo CHOI
  • DISPLAY DEVICE
    Publication number: 20220352246
    Abstract: A display device includes a first substrate, a plurality of light-emitting elements on the first substrate and spaced from each other, wherein each of the plurality of light-emitting elements extends in a thickness direction of the first substrate, a common electrode on the first substrate and the plurality of light-emitting elements, a first insulating layer on the common electrode and the plurality of light-emitting elements, and a first reflective layer on side surfaces of the plurality of light-emitting elements with the first insulating layer therebetween, wherein the common electrode is in contact with a portion of the side surface of each of the plurality of light-emitting elements.
    Type: Application
    Filed: February 11, 2022
    Publication date: November 3, 2022
    Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Jin Taek PARK, Sung Eun BAEK, Dae Ho SONG, Hyung Il JEON
  • DISPLAY DEVICE
    Publication number: 20220352236
    Abstract: A display device includes a pixel, the pixel includes at least one light emitting element including a first end and a second end; a first electrode overlapping the at least one light emitting element and electrically connected to the first end of the at least one light emitting element; and a second electrode overlapping the at least one light emitting element and the first electrode and electrically connected to the second end of the at least one light emitting element, and the first electrode includes area electrodes divided according to a number and a position of area electrodes overlapping the at least one light emitting element.
    Type: Application
    Filed: December 9, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hae Yun CHOI, Sung Kook PARK, Sung Eun BAEK, Jin Woo CHOI
  • DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220352251
    Abstract: The disclosure relates to a display device and a method of manufacturing the same. A display device includes a pixel including a first electrode, a light emitting element disposed on the first electrode, and a second electrode disposed on the light emitting element. The light emitting element includes: an emission layer that generates light of a first color; a first light conversion layer disposed between the emission layer and the first electrode to convert the light of the first color into light of a second color; a second light conversion layer disposed between the first light conversion layer and the first electrode to convert the light of the first color or the light of the second color into light of a third color; and a first semiconductor layer disposed between the emission layer and the second electrode and including a first conductivity type dopant.
    Type: Application
    Filed: March 25, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Geun LEE, Min Woo KIM, Byung Ju LEE, Dae Ho SONG, Jin Woo CHOI
  • DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220352425
    Abstract: A display device includes pixels including a first pixel and a second pixel; a first electrode disposed in a light-emitting area of the first pixel; a first light-emitting element disposed on the first electrode and electrically connected to the first electrode, the first light-emitting element including a first light-emitting layer emitting light of a first color; a second electrode disposed in a light-emitting area of the second pixel; a second light-emitting element disposed on the second electrode and electrically connected to the second electrode, the second light-emitting element including a second light-emitting layer emitting light of a second color; and a bank disposed around the pixels to surround the light-emitting area of the first pixel and the light-emitting area of the second pixel, and including an inactive light-emitting layer of a same material as the first light-emitting layer.
    Type: Application
    Filed: March 29, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Wan KIM, Dae Ho SONG, Byung Ju LEE, Seung Geun LEE, Jin Woo CHOI
  • DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220352268
    Abstract: A display device includes a substrate, a pixel electrode disposed on the substrate, a bank covering an edge of the pixel electrode and defining a light-emitting area, a first organic layer disposed on the bank and non-overlapping the light-emitting area, a plurality of light-emitting elements arranged on the pixel electrode, where each of the plurality of light-emitting elements extends perpendicular to the pixel electrode, a planarization layer disposed on the pixel electrode, the bank and the first organic layer, where the planarization layer is filled between the plurality of light-emitting elements, and a common electrode disposed on the planarization layer and the plurality of light-emitting elements, where the first organic layer is disposed between the bank and the planarization layer, and overlaps the bank.
    Type: Application
    Filed: January 6, 2022
    Publication date: November 3, 2022
    Inventors: Ki Seong SEO, Jin Woo CHOI, Sung Eun BAEK
  • DISPLAY DEVICE
    Publication number: 20220352432
    Abstract: According to some embodiments of the present disclosure, there is provided a display device including a substrate, a light emitting element on the substrate and emitting first light, a wavelength conversion layer on the light emitting element and including wavelength conversion particles for converting the first light into second light, a first selective transmission film between the light emitting element and the wavelength conversion layer and reflecting the first light and the second light, which are incident from the wavelength conversion layer, and a second selective transmission film on the wavelength conversion layer and reflecting the first light incident from the wavelength conversion layer and transmitting the second light.
    Type: Application
    Filed: December 23, 2021
    Publication date: November 3, 2022
    Inventors: Joo Woan CHO, Jin Woo CHOI, Byung Choon YANG, Tae Hee LEE, Hae Yun CHOI
  • DISPLAY DEVICE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20220352424
    Abstract: A display device includes a substrate, a partition wall on the substrate, a pixel electrode located at each of a plurality of light emitting areas partitioned by the partition wall on the substrate, a light emitting element on the pixel electrode in each of the plurality of light emitting areas and extending in a thickness direction of the substrate, a common electrode on the light emitting element and the partition wall, and a common connection electrode located between the substrate and the partition wall. The common electrode may be in contact with an upper surface of the common connection electrode that is not covered by the partition wall.
    Type: Application
    Filed: March 17, 2022
    Publication date: November 3, 2022
    Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Jin Taek PARK, Sung Eun BAEK, Dae Ho SONG, Hyung Il JEON
  • DISPLAY DEVICE
    Publication number: 20220352447
    Abstract: There is provided a display device including a display panel including first panel pads arranged along a plurality of rows, each of the rows extending in a first direction in a plan view, wires extending in a second direction crossing the first direction, each of the wires including a first bonding portion attached to a corresponding one of the first panel pads, and a first circuit board including first pads connected to the wires. The first panel pads in a first row of the plurality of rows in a plan view are exposed in the second direction crossing the first direction between the first panel pads in a second row neighboring to the first row of the plurality of rows.
    Type: Application
    Filed: April 22, 2022
    Publication date: November 3, 2022
    Inventors: Tae Hee LEE, Sung Kook PARK, Joo Woan CHO, Jin Woo CHOI, Hae Yun CHOI
  • DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20220352238
    Abstract: A display device includes light-emitting elements disposed on a substrate, wherein each of the light-emitting elements includes a first semiconductor layer, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, and a porous layer disposed on the second semiconductor layer.
    Type: Application
    Filed: December 22, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Su Jeong KIM, Young Jin SONG, Jin Wan KIM, Dae Ho SONG, Jin Woo CHOI, Sang Jo KIM, Hoo Keun PARK, Byung Ju LEE, Seung Geun LEE
  • DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220352422
    Abstract: A display device includes a base substrate, a partitioning wall on the base substrate, wherein the partitioning wall includes a first partitioning wall, and a second partitioning wall on the first partitioning wall, and a light emitting element spaced from the partitioning wall and located in a space surrounded by the partitioning wall in a plan view. The first partitioning wall and the light emitting element include a same material. The second partitioning wall includes a transparent conductive oxide.
    Type: Application
    Filed: January 25, 2022
    Publication date: November 3, 2022
    Inventors: Byung Ju LEE, Dae Ho SONG, Jin Woo CHOI, Jin wan KIM, Seung Geun LEE
  • DISPLAY DEVICE
    Publication number: 20220352420
    Abstract: A display device may include light emitting elements, a first electrode and a second electrode electrically connected to each of the light emitting elements, a pixel circuit electrically connected to at least one of the light emitting elements. The pixel circuit may be disposed in each of a plurality of pixel circuit areas that are disposed in a matrix form defined by a first direction and a second direction intersecting the first direction, a first contact portion and a second contact portion may be disposed in each of the plurality of pixel circuit areas, wherein the first contact portion electrically connects the pixel circuit and the first electrode, and the second contact portion electrically connects a common power line and the second electrode, and in a plan view, the first contact portion and the second contact portion may be alternately disposed along the first direction.
    Type: Application
    Filed: December 23, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Sung Kook PARK, Min Woo KIM, Ja Eun LEE, Jin Woo CHOI
  • DISPLAY DEVICE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20220352241
    Abstract: A display device includes a substrate, pixel electrodes on the substrate, light emitting elements on corresponding ones of the pixel electrodes, a first partition wall around sides of each of the light emitting elements, a common electrode on an upper surface of each of the light emitting elements, wavelength conversion layers on the common electrode, and a second partition wall around sides of each of the wavelength conversion layers. The first partition wall has conductivity.
    Type: Application
    Filed: December 29, 2021
    Publication date: November 3, 2022
    Inventors: Hyung Il JEON, Sung Kook PARK, Ki Seong SEO, Dae Ho SONG, So Yeon YOON, Ok Yi LEE, Jin Woo CHOI
  • METHOD AND SYSTEM OF MANUFACTURING DISPLAY DEVICE
    Publication number: 20220352042
    Abstract: In a method of manufacturing a display device, first and second panels are aligned by using an alignment apparatus. The first panel includes pixel driving circuits arranged on a first substrate, each of the pixel driving circuits includes a transistor and a pixel electrode connected to the transistor, and the second panel includes light emitting elements arranged on a second substrate. An end portion of at least one of the light emitting elements is bonded to the pixel electrode by using a bonding apparatus, and a lighting test is performed on a mother panel by using a test apparatus. The mother panel includes the first panel and the second panel, and is divided into a plurality of display panels in plan view. A defect management map for the plurality of display panels is generated based on a result of the lighting test.
    Type: Application
    Filed: March 30, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Tae Hee LEE, Sung Kook PARK, Joo Woan CHO, Jin Woo CHOI, Hae Yun CHOI
  • APPARATUS AND METHOD FOR MANUFACTURING DISPLAY DEVICE
    Publication number: 20220352411
    Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.
    Type: Application
    Filed: December 16, 2021
    Publication date: November 3, 2022
    Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Dae Ho SONG, So Yeon YOON, Joo Woan CHO
  • DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220352248
    Abstract: A display device includes bank patterns disposed on a substrate, light emitting elements disposed between side surfaces of the bank patterns on the substrate, and a color filter layer disposed between the side surfaces of the bank patterns and disposed on the light emitting elements. The light emitting elements and the bank patterns include a same material.
    Type: Application
    Filed: March 2, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Soo Chul KIM, Jin Taek PARK, Ki Seong SEO, Dae Ho SONG, So Yeon YOON, Jin Woo CHOI
  • DISPLAY DEVICE
    Publication number: 20220352140
    Abstract: A display device includes: a first substrate; a plurality of light-emitting elements on the first substrate; a second substrate opposite to the first substrate, and including one face facing the first substrate, and an opposite face to the one face; a plurality of grooves at the opposite face of the second substrate; a plurality of wavelength conversion layers, each of the wavelength conversion layers being located in a corresponding groove of the plurality of grooves to convert a wavelength of light emitted from a corresponding light-emitting element of the plurality of light-emitting elements; and a plurality of color filters on the wavelength conversion layers, respectively.
    Type: Application
    Filed: March 31, 2022
    Publication date: November 3, 2022
    Inventors: Jin Taek PARK, Soo Chul KIM, Dae Ho SONG, So Young YEO, Ok Yi LEE, Joo Woan CHO, Jin Woo CHOI
  • DISPLAY DEVICE
    Publication number: 20220352444
    Abstract: A display device includes a first substrate, light emitting elements and a connection electrode on a first surface of the first substrate, and electrically connected to the light emitting elements, first pads spaced from the connection electrode in a direction, second pads spaced from the connection electrode in another direction, a circuit board including a first circuit board pad and a second circuit board pad, a first pad connection electrode connected to the first pads and the first circuit board pad, and including a first connection part in a first via hole passing through the first substrate, and a first electrode part on the first substrate, and a second pad connection electrode connected to the second pads and the second circuit board pad, and including a second connection part in a second via hole passing through the first substrate, and a second electrode part on the first substrate.
    Type: Application
    Filed: January 7, 2022
    Publication date: November 3, 2022
    Inventors: Joo Woan CHO, Sung Kook PARK, Dae Ho SONG, Byung Choon YANG, Hyung Il JEON, Jin Woo CHOI
  • DISPLAY DEVICE
    Publication number: 20220352267
    Abstract: A display device includes a pixel, the pixel includes a first electrode; at least one light emitting element disposed on the first electrode; and a second electrode including at least one overlapping part overlapping the at least one light emitting element and including at least one opening not overlapping the at least one light emitting element, and a shape, a size, and a position of the overlapping part of the second electrode vary according to a position of the at least one light emitting element and a number of light emitting elements.
    Type: Application
    Filed: December 7, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Sung Eun BAEK, Jin Woo CHOI, Sung Kook PARK, Dae Ho SONG
  • DISPLAY DEVICE
    Publication number: 20220352131
    Abstract: A display device may include a plurality of light emitting elements on a substrate and arranged in a matrix form along a first arrangement direction and a second arrangement direction crossing the first arrangement direction, and a first sub pixel area and a second sub pixel area each overlapping at least a portion of the plurality of light emitting elements, spaced from each other in a first direction, and extending in a second direction crossing the first direction. The second direction and the first arrangement direction may be non-parallel to each other.
    Type: Application
    Filed: December 16, 2021
    Publication date: November 3, 2022
    Inventors: Jin Woo CHOI, Byung Choon YANG, Min Woo KIM, Sung Kook PARK, Hyung Il JEON