Patents by Inventor Kwang Je Woo

Kwang Je Woo 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).

  • Patent number: 11691909
    Abstract: A textured glass substrate along with articles comprising a textured glass substrate and methods of making are provided. The substrates retain the mechanical and optical properties of the untextured glass, while the process provides a reliable and low cost, easy scale up method. The resulting glass substrates are of particular use for light extraction in organic light emitting diode structures.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 4, 2023
    Assignee: Corning Incorporated
    Inventors: Xinyu Cao, Haixing Chen, Ling Chen, Chenglong Dai, Kwang je Woo, Jianqiang Zhu
  • Patent number: 11276841
    Abstract: The present invention relates to a light extraction substrate for an organic light emitting element and, more specifically, to a light extraction substrate for an organic light emitting element that can enhance the light extraction efficiency of the organic light emitting element by optimizing a stack structure that can maximize scattering efficiency, and an organic light emitting element comprising the same.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: March 15, 2022
    Inventors: Hong Yoon, Joo Young Lee, Hyun Hee Lee, Dong Hyun Kim, Min Seok Kim, Seo Hyun Kim, Kwang Je Woo
  • Publication number: 20190345056
    Abstract: A textured glass substrate along with articles comprising a textured glass substrate and methods of making are provided. The substrates retain the mechanical and optical properties of the untextured glass, while the process provides a reliable and low cost, easy scale up method. The resulting glass substrates are of particular use for light extraction in organic light emitting diode structures.
    Type: Application
    Filed: November 30, 2017
    Publication date: November 14, 2019
    Inventors: Xinyu Cao, Haixing Chen, Ling Chen, Chenglong Dai, Kwang je Woo, Jianqiang Zhu
  • Patent number: 10256439
    Abstract: The present invention relates to a tandem organic light-emitting element, more particularly to a tandem organic light-emitting element which may decrease a driving voltage in a driving region of a charge generation layer by sequentially laminating an electronics layer, which is doped with a metal dopant, and an electronics layer, which is doped with an organic dopant, on one side of the charge generation layer, thereby having increased power efficiency and life span.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: April 9, 2019
    Assignees: Corning Precision Materials Co., Ltd., University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hyung Seok Lee, Kwang Je Woo, Jang Dae Youn, Jang Hyuk Kwon, Young Hoon Son
  • Publication number: 20180166644
    Abstract: The present invention relates to a tandem type organic light emitting device and, more specifically, to a tandem type organic light emitting device which exhibits low operation voltage, high power efficiency and an excellent color rendering index (CRI). To this end, the present invention provides a tandem type organic light emitting device, the device comprising: a base substrate; a first electrode formed on the base substrate; a second electrode formed to oppose the first electrode; and first to third organic light emitting layers formed in sequence from the first electrode, between the first electrode and the second electrode. The first organic light emitting layer comprises a first light emitting layer for emitting blue light, the second organic light emitting layer comprises a second light emitting layer for emitting yellow light, and the third organic light emitting layer comprises a third light emitting layer for emitting red light.
    Type: Application
    Filed: January 5, 2016
    Publication date: June 14, 2018
    Applicants: Corning Precision Materials Co., Ltd., UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jang Dae Youn, Kwang Je Woo, Hyung Seok Lee, Jang Hyuk Kwon, Young Hoon Son
  • Publication number: 20170331075
    Abstract: The present invention relates to a tandem organic light-emitting element, more particularly to a tandem organic light-emitting element which may decrease a driving voltage in a driving region of a charge generation layer by sequentially laminating an electronics layer, which is doped with a metal dopant, and an electronics layer, which is doped with an organic dopant, on one side of the charge generation layer, thereby having increased power efficiency and life span.
    Type: Application
    Filed: January 5, 2016
    Publication date: November 16, 2017
    Applicants: Corning Precision Materials Co., Ltd., UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hyung Seok Lee, Kwang Je Woo, Jang Dae Youn, Jang Hyuk Kwon, Young Hoon Son
  • Publication number: 20170279083
    Abstract: The present invention relates to a light extraction substrate for an organic light emitting element and, more specifically, to a light extraction substrate for an organic light emitting element that can enhance the light extraction efficiency of the organic light emitting element by optimizing a stack structure that can maximize scattering efficiency, and an organic light emitting element comprising the same.
    Type: Application
    Filed: September 18, 2015
    Publication date: September 28, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Hong Yoon, Joo Young Lee, Hyun Hee Lee, Dong Hyun Kim, Min Seok Kim, Seo Hyun Kim, Kwang Je Woo
  • Publication number: 20170256746
    Abstract: The present invention relates to a light extraction substrate for an organic light-emitting diode, a manufacturing method therefor, and an organic light-emitting diode including the same and, more specifically, to: a light extraction substrate for an organic light-emitting diode, which can improve light extraction efficiency of an organic light-emitting diode by reducing a distance between an organic light-emitting layer and a light extraction layer of the organic light-emitting diode more than a conventional distance therebetween; a manufacturing method therefor; and an organic light-emitting diode including the same.
    Type: Application
    Filed: September 7, 2015
    Publication date: September 7, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventor: Kwang Je Woo
  • Publication number: 20130323906
    Abstract: A method of manufacturing a thin-film bonded substrate used for semiconductor devices. The method includes the steps of epitaxially growing an epitaxial growth layer on a first substrate of a bulk crystal, cleaving the first substrate, thereby leaving a crystal thin film on the epitaxial growth layer, the crystal thin film being separated out of the first substrate, and bonding a second substrate to the crystal thin film, the chemical composition of the second substrate being different from the chemical composition of the first substrate. It is possible to preclude a conductive barrier layer of the related art, prevent a reflective layer from malfunctioning due to high-temperature processing, and essentially prevent cracks due to the difference in the coefficients of thermal expansion between heterogeneous materials that are bonded to each other.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Donghyun Kim, Dong-Woon Kim, Mikyoung Kim, MinJu Kim, A-Ra Kim, Hyunjoon Kim, Joong Won Shur, Kwang-Je Woo, Bohyun Lee, JongPil Jeon, Kyungsub Jung
  • Publication number: 20130029472
    Abstract: A gallium nitride (GaN) bonded substrate and a method of manufacturing a GaN bonded substrate in which a polycrystalline nitride-based substrate is used. The method includes loading a single crystalline GaN substrate and a polycrystalline nitride substrate into a bonder; raising the temperature in the bonder; bonding the single crystalline GaN substrate and the polycrystalline nitride substrate together by pressing the single crystalline GaN substrate and the polycrystalline nitride substrate against each other after the step of raising the temperature; and cooling the resultant bonded substrate.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Inventors: BONGMO PARK, Kwang Je Woo, Jun Sung Choi, Bo Hyun Lee, Seung Yong Park
  • Publication number: 20080268209
    Abstract: Disclosed are an optical member for a display apparatus and a filter for a display apparatus having the same. The optical member for the display apparatus includes a transparent resin material, and a first optical pattern formed on a surface of the transparent resin material and including a plurality of first shielding parts filled with a light absorbing substance and a conductive substance.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 30, 2008
    Inventors: Kwang Je Woo, Moon Ki Han, Sung Nim Cho, Eui Soo Kim, Seng Cheol Jung
  • Patent number: 6159065
    Abstract: The present invention relates to a method for manufacturing a spacer used in a flat panel display. At the first printing process, a printing mask produces a primary spacer on a substrate. After removing the printing mask, a supporting plate having a hole to excess the primary spacer is placed on the substrate and then the printing mask is rearranged on the supporting plate. A subsequent printing process is applied repeatedly to the printing mask with the supporting plate to extend the height of the primary spacer to the amount of the thickness of the supporting plate, thereby producing an elongated finished spacer.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: December 12, 2000
    Assignee: Orion Electric Co., Ltd.
    Inventors: Sung Jae Jung, Kwang Je Woo, Kwan Soo Kim, Gwon Jin Moon