Patents by Inventor Chang-woong Chu

Chang-woong Chu 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).

  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160308138
    Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport region between the second electrode and the emission layer, wherein the emission layer includes a first host and a second host, the first host includes a first compound represented by Formula 1, the second host includes at least one selected from a second compound represented by Formula 2 and a third compound represented by Formula 3, and the hole transport region includes an amine-based compound represented by Formula 40:
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
  • ORGANIC LIGHT EMITTING DIODE DISPLAY
    Publication number: 20160300893
    Abstract: An organic light emitting diode display including a substrate, a thin film transistor on the substrate, a first electrode connected to the thin film transistor, a first layer on the first electrode, an emission layer on the first layer, a second layer on the emission layer, and a second electrode on the second layer.
    Type: Application
    Filed: October 5, 2015
    Publication date: October 13, 2016
    Inventors: Sang Hoon Yim, Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Jong Hyuk Lee, Da Hea Im, Yoon Hyeung Cho, Chang Woong Chu
  • Organic light-emitting device
    Patent number: 9466808
    Abstract: An organic light-emitting device includes a first electrode, a second electrode disposed opposite to the first electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer. The emission layer includes at least one first light-emitting material represented by Formula 1 and at least one second light-emitting material represented by Formula 2: X1 to X12, Ar1, M, X21 to X24, A, B, R1 to R12, R21, R22, a1, a2, n, L, M in Formulae 1 and 2 are defined as in the specification.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 11, 2016
    Assignees: Samsung Display Co., Ltd., Duk San Neolux Co., Ltd.
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Kwan-Hee Lee, Se-Hun Kim, Hwan-Hee Cho, Dae-Yup Shin, Jung-Hwan Park, Bum-Sung Lee
  • Organic light-emitting device and organic light-emitting display apparatus including the same
    Patent number: 9466801
    Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, a phosphorescent emission layer between the first electrode and the second electrode, and an electron transport layer between the phosphorescent emission layer and the second electrode. The phosphorescent emission layer includes a compound represented by one of Formulae 1a to 1c, and the electron transport layer includes a metal-containing compound and a compound represented by Formula 2.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: October 11, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Cho, Moon-Jae Lee, Ji-Hyun Seo, Jae-Hyun Kwak, Young-Ho Park, Chang-Woong Chu, Mi-Kyung Kim, Kwan-Hee Lee
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160276595
    Abstract: Provided is an organic light-emitting device with a blue emission layer. The blue emission layer is an emission layer that emits blue light by a fluorescent emission mechanism.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Inventors: Mi-Kyung Kim, Kwan-Hee Lee, Sam-Il Kho, Chang-Woong Chu
  • ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20160268508
    Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a first compound represented by Formula 1-1 or Formula 1-2, and wherein the electron transport region includes a second compound represented by Formula 2:
    Type: Application
    Filed: October 8, 2015
    Publication date: September 15, 2016
    Inventors: Myeong-Suk KIM, Tae-Kyung KIM, Sung-Wook KIM, Hwan-Hee CHO, Chang-Woong CHU
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160260901
    Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, an emission layer between the first electrode and the second electrode, a hole transport region between the first electrode and the emission layer, and an electron transport region between the second electrode and the emission layer.
    Type: Application
    Filed: October 27, 2015
    Publication date: September 8, 2016
    Inventors: Myeong-Suk KIM, Tae-Kyung KIM, Sung-Wook KIM, Hwan-Hee CHO, Chang-Woong CHU
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160226000
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode opposite the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron control layer, wherein the hole transport region includes at least one compound selected from a first compound represented by Formula 1 and a second compound represented by Formula 2, and the electron control layer includes a third compound represented by Formula 3:
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Sang-Woo Lee, Chang-Woong Chu, Tae-Hyung Kim, Ho-Cheol Park, Chang-Jun Lee, Young-Bae Kim, Hoe-Moon Kim
  • ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20160190501
    Abstract: An organic light emitting diode and an organic light emitting display device, the organic light emitting diode including a first electrode and a second electrode facing each other; an emission layer between the first electrode and the second electrode; and a hole transport layer between the first electrode and the emission layer, wherein the hole transport layer includes an organic material and a dipole material, the dipole material including a first component and a second component, the first component having a polarity different from that of the second component and the first component and the second component being combined with each other.
    Type: Application
    Filed: August 13, 2015
    Publication date: June 30, 2016
    Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Da Hea IM, Sang Hoon YIM, Chang Woong CHU
  • Organic light-emitting device
    Patent number: 9379334
    Abstract: Provided is an organic light-emitting device with a blue emission layer. The blue emission layer is an emission layer that emits blue light by a fluorescent emission mechanism.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 28, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi-Kyung Kim, Kwan-Hee Lee, Sam-Il Kho, Chang-Woong Chu
  • ORGANIC LIGHT EMITTING DIODE DISPLAY
    Publication number: 20160155979
    Abstract: An organic light emitting diode display, including a substrate; a thin film transistor on the substrate; a first electrode on the thin film transistor and electrically connected to the thin film transistor; an organic emission layer on the first electrode; a second electrode on the organic emission layer; and a first capping layer on the second electrode and a second capping layer on the first capping layer, the second capping layer being thicker than the first capping layer.
    Type: Application
    Filed: October 8, 2015
    Publication date: June 2, 2016
    Inventors: Sang Hoon YIM, Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Jong Hyuk LEE, Da Hea IM, Yoon Hyeung CHO, Chang Woong CHU
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160133853
    Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; wherein the emission layer includes a first host represented by the following Formula 1, and a second host represented by the following Formula 2:
    Type: Application
    Filed: May 8, 2015
    Publication date: May 12, 2016
    Inventors: Hwan-Hee CHO, Myeong-Suk KIM, Sung-Wook KIM, Jae-Yong LEE, Chang-Woong CHU
  • Stereoscopic image display device
    Patent number: 9329398
    Abstract: A stereoscopic image display device, including: an image displaying unit including a plurality of pixels, the plurality of pixels displaying a left-eye image and a right-eye image, a first light blocking unit having a lattice structure including a plurality of openings corresponding to the plurality of pixels, and a second light blocking unit extending from the first light blocking unit into horizontal center portions of the plurality of openings; and a parallax barrier opposed to the image displaying unit, the parallax barrier including transmitting regions and blocking regions, the transmitting regions and the blocking regions extending in a vertical direction and being alternately disposed to spatially divide the left-eye image and the right-eye image displayed by the image displaying unit.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: May 3, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Chang-Woong Chu
  • Condensed-cyclic compounds and organic light-emitting diodes comprising the same
    Patent number: 9324953
    Abstract: Condensed-cyclic organic compounds, synthetic methods for preparing the same and an organic light-emitting diode including the same are presented. The subject polycyclic triarylamines are prepared via a series of substitution and cyclization reactions.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: April 26, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Hun Kim, Mi-Kyung Kim, Chang-Woong Chu, Kwan-Hee Lee
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160111663
    Abstract: An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer. The emission layer includes an organometallic compound represented by Formula 1, and the hole transport region includes a first compound represented by Formula 2.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu, Youn-Sun Kim, Naoyuki Ito
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160111644
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer, wherein the emission layer includes an organometallic compound represented by Formula 1, and the hole transport region includes an amine-based compound represented by Formula 2:
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Chang-Woong Chu, Youn-Sun Kim, Naoyuki Ito
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160111664
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7: Ar11?(L11)a11-(R11)b11]n11??Formula 1 Ar21?(L21)a21-(R21)b21]n21??Formula 2 M(L1)n71(L2)n72.??Formula 7 The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Naoyuki Ito, Myeong-Suk Kim, Youn-Sun Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20160111665
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer, wherein the emission layer includes an organometallic compound of Formula 1 as described in the specification, and the hole transport region includes a first compound of Formula 2A or Formula 2B as described in the specification.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Hwan-Hee Cho, Chang-Woong Chu, Youn-Sun Kim, Naoyuki Ito
  • ORGANIC LIGHT EMITTING DIODE
    Publication number: 20160056400
    Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 25, 2016
    Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Da Hea IM, Sang Hoon YIM, Chang Woong CHU
  • ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20160056403
    Abstract: An organic light emitting diode, including a first electrode and a second electrode facing each other; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a metal having a work function of 4.0 eV or less and a dipole material including a first component and a second component having different polarities.
    Type: Application
    Filed: June 10, 2015
    Publication date: February 25, 2016
    Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Da Hea IM, Sang Hoon YIM, Chang Woong CHU