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: 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
  • Patent number: 10557979
    Abstract: A wire grid polarizer substrate including a wire grid base layer having a first surface and a second surface opposing each other, and an engraved trench extending along a first direction and having a concave shape penetrating into the second surface from the first surface of the wire grid base layer.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Kwang Kim, Han Su Kim, Seung-Yeon Chae, Se Hee Han
  • Patent number: 9971180
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a roof layer facing the substrate and shaped so as to at least partially define a plurality of microcavities, a liquid crystal layer disposed in the plurality of microcavities, and a partition wall which partitions adjacent ones of the microcavities and which includes at least two regions having different heights from each other.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Kwang Kim, Seung-Yeon Chae
  • Publication number: 20180129094
    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: Application
    Filed: October 24, 2017
    Publication date: May 10, 2018
    Inventors: Si Kwang KIM, Joo Young YOON, Seung Yeon CHAE
  • Publication number: 20180088265
    Abstract: A wire grid polarizer substrate including a wire grid base layer having a first surface and a second surface opposing each other, and an engraved trench extending along a first direction and having a concave shape penetrating into the second surface from the first surface of the wire grid base layer.
    Type: Application
    Filed: July 20, 2017
    Publication date: March 29, 2018
    Inventors: Si Kwang KIM, Han Su Kim, Seung-Yeon Chae, Se Hee Han
  • Publication number: 20170199437
    Abstract: A display device includes: a substrate; a thin film transistor on the substrate; a pixel electrode connected to the thin film transistor; a common electrode overlapping the pixel electrode; an insulating layer between the pixel electrode and the common electrode; a roof layer spaced apart from the pixel electrode; a microcavity provided in plurality each defined between the roof layer and the pixel electrode spaced apart from each other; a first alignment layer between the microcavity and the pixel electrode and defining an upper surface thereof adjacent to the microcavity which defines a first groove of the first alignment layer; a second alignment layer between the microcavity and the roof layer and defining an upper surface thereof opposing the microcavity which defines a second groove of the second alignment layer; and an optical medium layer disposed in the plurality of microcavities.
    Type: Application
    Filed: August 19, 2016
    Publication date: July 13, 2017
    Inventors: Seung-Yeon CHAE, Si Kwang KIM, Joo Young YOON, Gug Rae JO
  • Publication number: 20170146845
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a roof layer facing the substrate and shaped so as to at least partially define a plurality of microcavities, a liquid crystal layer disposed in the plurality of microcavities, and a partition wall which partitions adjacent ones of the microcavities and which includes at least two regions having different heights from each other.
    Type: Application
    Filed: September 21, 2016
    Publication date: May 25, 2017
    Inventors: Si Kwang KIM, Seung-Yeon CHAE
  • Patent number: 9557610
    Abstract: Provided is a display device capable of preventing a liquid crystal from being left outside a microcavity. The display device includes: a substrate; a pixel electrode formed on the substrate; a roof layer formed on the pixel electrode so as to be spaced apart from the pixel electrode with a plurality of microcavities therebetween; a light blocking member positioned between two microcavities of the plurality of microcavities, overlapping with a first edge of one microcavity of the two microcavities, and not overlapping with a second edge of the other microcavity; an injection hole exposing a part of the microcavity; a liquid crystal layer filling the microcavity; and an encapsulation layer formed on the roof layer so as to cover the injection hole to seal the microcavity.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Kwang Kim, Tae Gyun Kim, Hyoung Sub Lee, Woo Yong Sung, Tae Woon Cha, Sang Gun Choi
  • Patent number: 9436041
    Abstract: A display includes a plurality of pixel columns and a plurality of pixel rows including a first pair of pixel rows and a second pair of pixel rows adjacent to each other. The LCD also includes a first gate line and a second gate line positioned between the first pair of pixel rows and the second pair of pixel rows, a microcavity layer including a plurality of liquid crystal injection holes, and a common electrode positioned on the microcavity layer. The LCD also includes a supporting member positioned on a common electrode and a capping layer positioned on a supporting member to cover the liquid crystal injection holes. The plurality of liquid crystal injection holes may be positioned between the first pair of pixel rows and the second pair of pixel rows.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hwan Kim, Si Kwang Kim, Ha-Young Park, Tae Woon Cha, Se Hee Han
  • Patent number: 9429796
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor comprising one or more terminals and disposed on the substrate; a pixel electrode connected to one of the terminals of the thin film transistor; and a roof layer disposed to face the pixel electrode, wherein a microcavity is formed between the pixel electrode and the roof layer, the microcavity including a liquid crystal material, wherein a plurality of microcavities are disposed along a first row and a second row adjacent to each other, a trench is formed between the first row and the second row, and at least one bridge connecting the first row and the second row is disposed at the trench.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung Sub Lee, Tae Gyun Kim, Woo Yong Sung, Nak Cho Choi, Sang Gun Choi, Si Kwang Kim, Tae Woon Cha
  • Publication number: 20160216546
    Abstract: Provided is a display device including: a substrate; a plurality of thin film transistors positioned on the substrate; a plurality of pixel electrodes connected with one terminal of the thin film transistor; a plurality of partition walls formed between the plurality of pixel electrodes; a liquid crystal material positioned in a microcavity between adjacent partition walls; a common electrode positioned on the partition wall and the liquid crystal material; and a color filter layer formed on the common electrode, in which the partition wall is a photoresist.
    Type: Application
    Filed: December 11, 2015
    Publication date: July 28, 2016
    Inventors: Min Su KIM, Si Kwang KIM, Tae Woon CHA, Seung-Yeon CHAE
  • Publication number: 20160209693
    Abstract: A display device may include a substrate, a roof layer, a pixel electrode, a liquid crystal layer, and a support member. The roof layer may overlap the substrate. The pixel electrode may be positioned between the roof layer and the substrate. The liquid crystal layer may be positioned between the roof layer and the pixel electrode and may include a first liquid crystal portion and a second liquid crystal portion. The first liquid crystal portion may be smaller than the second liquid crystal portion. The support member may be positioned between the roof layer and the substrate and may be positioned between the first liquid crystal portion and the second liquid crystal portion.
    Type: Application
    Filed: October 12, 2015
    Publication date: July 21, 2016
    Inventors: Si Kwang KIM, Tae Woon CHA, Seung-Yeon CHAE
  • Publication number: 20160161794
    Abstract: According to an exemplary embodiment of the present system and method, a display device includes: a substrate including a plurality of pixel areas and a thin film transistor region; a plurality of thin film transistors formed on the substrate; a pixel electrode formed in each of the pixel areas and connected to a corresponding thin film transistor; a color filter layer formed on the pixel electrode to be spaced apart from the pixel electrode by a microcavity disposed in between; a plurality of connection microcavities formed in the thin film transistor region and connecting microcavities in a column; and a liquid crystal material filling the microcavities and the connection microcavities.
    Type: Application
    Filed: October 29, 2015
    Publication date: June 9, 2016
    Inventors: Si Kwang KIM, Tae Woon CHA