Patents by Inventor Si Kwang Kim

Si Kwang 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: 20240063239
    Abstract: A fingerprint sensor includes: a light sensing layer including a light sensing element; and an optical layer including a plurality of light transmitting areas, a light blocking area, a light transmitting member disposed in the plurality of light transmitting areas, a light blocking member disposed in the light blocking area, and a planarization member disposed on the light blocking member, wherein the light blocking area surrounds the plurality of light transmitting areas, wherein the light transmitting member includes a first organic material, wherein the light blocking member includes a second organic material, and wherein the planarization member includes a third organic material and a positive-type photosensitive material.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Inventor: Si Kwang KIM
  • Publication number: 20240032404
    Abstract: A display device includes a substrate, an emission material layer disposed on the substrate and including a pixel having a pixel electrode, an emissive layer and a common electrode, and a pixel-defining film defining the pixel, a thin-film encapsulation layer disposed on the emission material layer, a low-refractive pattern layer overlapping the pixel-defining film and disposed on the thin-film encapsulation layer, an etch stop layer disposed on the low-refractive pattern layer and formed of an inorganic material, and a high-refractive planarization layer formed on the etch stop layer, wherein the high-refractive planarization layer includes a recess aligned with the low-refractive pattern layer.
    Type: Application
    Filed: May 10, 2023
    Publication date: January 25, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Woong Sik KIM, Jin Su BYUN, Si Kwang KIM, Dong Hwan BAE
  • Publication number: 20240032329
    Abstract: A display device includes, a light emitting diode disposed on a substrate, and including an emission layer, an encapsulation layer disposed on the light emitting diode, a first layer disposed on the encapsulation layer and including an opening, a light blocking pattern disposed in the opening and extending in a first direction, and a second layer disposed on the first layer and the light blocking pattern. A refractive index of the first layer and a refractive index of the second layer are different from each other.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 25, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Woong Sik KIM, Si Kwang KIM, Jin-Su BYUN, Yu-Gwang JEONG
  • Publication number: 20240023419
    Abstract: According to embodiments, a light emitting display device includes a light emitting diode (LED) positioned on a substrate and including an emission layer, a pixel definition layer including an opening corresponding to the emission layer, and a plurality of light-shielding linear patterns positioned on the pixel definition layer and the emission layer and extending in a first direction. The plurality of light-shielding linear patterns include a recess portion of a concave shape.
    Type: Application
    Filed: April 20, 2023
    Publication date: January 18, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Si Kwang KIM, Woong Sik KIM, DONGHWAN BAE, Jin-Su BYUN
  • Patent number: 11855110
    Abstract: A fingerprint sensor includes: a light sensing layer including a light sensing element; and an optical layer including a plurality of light transmitting areas, a light blocking area, a light transmitting member disposed in the plurality of light transmitting areas, a light blocking member disposed in the light blocking area, and a planarization member disposed on the light blocking member, wherein the light blocking area surrounds the plurality of light transmitting areas, wherein the light transmitting member includes a first organic material, wherein the light blocking member includes a second organic material, and wherein the planarization member includes a third organic material and a positive-type photosensitive material.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Si Kwang Kim
  • Publication number: 20230317769
    Abstract: A display device and a method of fabricating the same are provided. The display device includes a substrate, a first electrode on the substrate, a second electrode on the substrate and spaced apart from the first electrode, a plurality of light emitting elements, at least a portion of each of which is between the first electrode and the second electrode, and contact electrodes on the first electrode, the second electrode and the light emitting elements, the contact electrodes including a conductive polymer, wherein the contact electrodes include a first contact electrode which contacts an end portion of a first portion of the light emitting elements and the first electrode and a second contact electrode which contacts an end portion of a second portion of the light emitting elements, and the second electrode and is spaced apart from the first contact electrode.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 5, 2023
    Inventors: Si Kwang KIM, Min Suk KO, Kab Jong SEO, Yong Hoon YANG
  • Patent number: 11705477
    Abstract: A display device and a method of fabricating the same are provided. The display device includes a substrate, a first electrode on the substrate, a second electrode on the substrate and spaced apart from the first electrode, a plurality of light emitting elements, at least a portion of each of which is between the first electrode and the second electrode, and contact electrodes on the first electrode, the second electrode and the light emitting elements, the contact electrodes including a conductive polymer, wherein the contact electrodes include a first contact electrode which contacts an end portion of a first portion of the light emitting elements and the first electrode and a second contact electrode which contacts an end portion of a second portion of the light emitting elements, and the second electrode and is spaced apart from the first contact electrode.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: July 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Kwang Kim, Min Suk Ko, Kab Jong Seo, Yong Hoon Yang
  • Publication number: 20230215980
    Abstract: A display device may include: a substrate including a plurality of pixel areas each including an emission area and a non-emission area; and a pixel located in each of the pixel areas. The pixel may include: a light emitting element including a first end and a second end that face each other; a first electrode located on the first end of the light emitting element and electrically connected to the first end; and a second electrode located on the second end of the light emitting element and electrically connected to the second end. The first electrode and the second electrode may include different conductive materials, and have different thicknesses.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 6, 2023
    Inventors: Si Kwang KIM, Tae Wook KANG, Dong Min LEE
  • Patent number: 11670737
    Abstract: A display device includes 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, a first light-emitting element disposed in a first area between the first electrode and the second electrode, a second light-emitting element disposed in a second area outside of the first area, a first contact electrode disposed on the first electrode and electrically connected with a first end of the first light-emitting element, a second contact electrode disposed on the second electrode and electrically connected with a second end of the first light-emitting element and a first end of the second light-emitting element, and a third contact electrode disposed on the first electrode and electrically connected with a second end of the second light-emitting element.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 6, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Hoon Yang, Min Suk Ko, Si Kwang Kim, Kab Jong Seo
  • Publication number: 20230121816
    Abstract: A display device includes a pixel disposed in a display area of a substrate and including an emission area and a non-emission area. The pixel includes a light emitting element disposed in the emission area and including a first end and a second end facing each other in an extending direction, a first pixel electrode electrically connected to the first end of the light emitting element, a second pixel electrode electrically connected to the second end of the light emitting element, an insulating pattern disposed on the light emitting element to expose the first and second ends and including a first surface contacting the light emitting element, and a second surface facing the first surface in a thickness direction of the substrate, and a coating layer disposed on the first and second pixel electrodes and including a flat surface. The coating layer does not contact the insulating pattern.
    Type: Application
    Filed: June 30, 2022
    Publication date: April 20, 2023
    Applicant: Samsung Display Co., LTD.
    Inventor: Si Kwang KIM
  • Publication number: 20220123036
    Abstract: A fingerprint sensor includes: a light sensing layer including a light sensing element; and an optical layer including a plurality of light transmitting areas, a light blocking area, a light transmitting member disposed in the plurality of light transmitting areas, a light blocking member disposed in the light blocking area, and a planarization member disposed on the light blocking member, wherein the light blocking area surrounds the plurality of light transmitting areas, wherein the light transmitting member includes a first organic material, wherein the light blocking member includes a second organic material, and wherein the planarization member includes a third organic material and a positive-type photosensitive material.
    Type: Application
    Filed: August 24, 2021
    Publication date: April 21, 2022
    Inventor: Si Kwang KIM
  • Publication number: 20220115565
    Abstract: An ink includes a solvent, light-emitting elements included in the solvent, and polymer resins included in the solvent. Each of the light-emitting elements includes semiconductor layers, and an insulating film at least partially surrounding outer surfaces of the semiconductor layers.
    Type: Application
    Filed: August 20, 2021
    Publication date: April 14, 2022
    Applicant: Samsung Display Co., LTD.
    Inventor: Si Kwang KIM
  • Publication number: 20210357612
    Abstract: A fingerprint for a display device includes: a light sensor including a light sensing element through which a sensing current flows according to the intensity of incident light; and a light guide disposed on the light sensor. The light guide includes: a first light blocking member having a first opening; a first light transmitting member disposed on the first light blocking member; and a second light blocking member disposed on the first light transmitting member and having a second opening overlapping the first opening.
    Type: Application
    Filed: January 25, 2021
    Publication date: November 18, 2021
    Inventors: Yong Hoon YANG, Si Kwang Kim
  • Publication number: 20210288104
    Abstract: A display device includes a substrate, a first bank pattern and a second bank pattern on the substrate and spaced apart from each other, a first electrode on the first bank pattern, and a second electrode on the second bank pattern, a light emitting element between the first bank pattern and the second bank pattern, an insulation pattern on the light emitting element, and exposing a first end and a second end of the light emitting element respectively adjacent to the first bank pattern and the second bank pattern, a third electrode contacting the first electrode and the first end of the light emitting element, and a fourth electrode contacting the second electrode and the second end of the light emitting element, wherein a thickness of the insulation pattern is within a range of about 50% to about 150% of a thickness of the first bank pattern.
    Type: Application
    Filed: November 19, 2020
    Publication date: September 16, 2021
    Inventors: Yong Hoon YANG, Min Suk KO, Si Kwang KIM, Kab Jong SEO
  • Publication number: 20210280632
    Abstract: A display device and a method of fabricating the same are provided. The display device includes a substrate, a first electrode on the substrate, a second electrode on the substrate and spaced apart from the first electrode, a plurality of light emitting elements, at least a portion of each of which is between the first electrode and the second electrode, and contact electrodes on the first electrode, the second electrode and the light emitting elements, the contact electrodes including a conductive polymer, wherein the contact electrodes include a first contact electrode which contacts an end portion of a first portion of the light emitting elements and the first electrode and a second contact electrode which contacts an end portion of a second portion of the light emitting elements, and the second electrode and is spaced apart from the first contact electrode.
    Type: Application
    Filed: October 29, 2020
    Publication date: September 9, 2021
    Inventors: Si Kwang KIM, Min Suk KO, Kab Jong SEO, Yong Hoon YANG
  • Publication number: 20210257349
    Abstract: A display device includes: a substrate; a first bank on the substrate, at least portions of the first bank being spaced apart from each other; a plurality of first electrodes on the substrate, at least portions of the first electrodes being on portions of the first bank; a second electrode on the substrate, the second electrode being spaced apart from and between adjacent ones of the first electrodes; and a plurality of light emitting elements on the first electrodes and the second electrode.
    Type: Application
    Filed: September 3, 2020
    Publication date: August 19, 2021
    Inventors: Yong Hoon YANG, Min Suk KO, Si Kwang KIM, Kab Jong SEO
  • Publication number: 20210057610
    Abstract: A display device includes 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, a first light-emitting element disposed in a first area between the first electrode and the second electrode, a second light-emitting element disposed in a second area outside of the first area, a first contact electrode disposed on the first electrode and electrically connected with a first end of the first light-emitting element, a second contact electrode disposed on the second electrode and electrically connected with a second end of the first light-emitting element and a first end of the second light-emitting element, and a third contact electrode disposed on the first electrode and electrically connected with a second end of the second light-emitting element.
    Type: Application
    Filed: June 30, 2020
    Publication date: February 25, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Yong Hoon YANG, Min Suk KO, Si Kwang KIM, Kab Jong SEO
  • Publication number: 20210033985
    Abstract: An exposure device may include an exposure head that may radiate an exposure beam onto a substrate on a stage, a support that may be provided on the stage to support the exposure head, a chamber that may accommodate the stage, the exposure head, and the support. The exposure device may include first protrusions that may be disposed on an outer circumference of the support adjacent to an inner wall of the chamber, and second protrusions that may be disposed on the inner wall of the chamber surrounding the outer circumference of the support. The first and second protrusions may overlap each other in a plan view.
    Type: Application
    Filed: May 26, 2020
    Publication date: February 4, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Kab Jong SEO, Min Suk KO, Si Kwang KIM, Yong Hoon YANG
  • Patent number: 10890853
    Abstract: An exposure device may include an exposure head that may radiate an exposure beam onto a substrate on a stage, a support that may be provided on the stage to support the exposure head, a chamber that may accommodate the stage, the exposure head, and the support. The exposure device may include first protrusions that may be disposed on an outer circumference of the support adjacent to an inner wall of the chamber, and second protrusions that may be disposed on the inner wall of the chamber surrounding the outer circumference of the support. The first and second protrusions may overlap each other in a plan view.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kab Jong Seo, Min Suk Ko, Si Kwang Kim, Yong Hoon Yang
  • Patent number: 10663781
    Abstract: According to an embodiment of the present disclosure, a display device includes a light source, a first substrate on the light source, a liquid crystal layer on the first substrate, and a second substrate on the liquid crystal layer, wherein the first substrate or the second substrate includes a base substrate, an insulating layer on the base substrate, and partially defining a first cavity and a second cavity having openings facing different directions, a first quantum dot in the first cavity, a second quantum dot in the second cavity, and a cover layer covering the openings of the first and second cavities.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Kwang Kim, Joo Young Yoon, Seung Yeon Chae