Patents by Inventor Ji Youn

Ji Youn 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: 9893301
    Abstract: Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum-Woo Park, Yoon-Hyun Kwak, Sun-Young Lee, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee, Jin-Young Yun
  • Patent number: 9892701
    Abstract: A display apparatus including a display panel connected to a plurality of data lines, a data driver configured to generate a plurality of data voltages, and to apply the plurality of data voltages to the plurality of data lines, and a plurality of feedback lines disposed in a fan-out region between the display panel and the data driver, wherein the data driver is further configured to applies a first signal to each of the plurality of feedback lines, wherein delays by the fan-out region are obtained based on the first signal, the delays being associated with the plurality of data lines, and wherein the data driver is further configured to controls output times of the plurality of data voltages based on the delays.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Haw Park, Yong-Su Lim, Ji-Youn Seo, Ye-Seul Lee
  • Publication number: 20180012537
    Abstract: A display apparatus, a driving method of a display apparatus, and a computer readable recording are provided. The method includes displaying an image on an entire screen area of a display unit, and in response to a user or a user device approaching (e.g., being detected by) the display unit, controlling the display unit to reduce the image and display the reduced image in a first area of the screen area and to control a second area of the screen area other than the first area to operate as a mirror.
    Type: Application
    Filed: March 16, 2017
    Publication date: January 11, 2018
    Inventors: Ji-youn HAN, Sung-hyun JANG, Sang-min HYUN, Se-ran JEON, Ji-min HONG
  • Publication number: 20170310037
    Abstract: A joint connector is provided. The joint connector includes a housing, receptacle terminals configured to be inserted into the housing and a retainer configured to be slidably inserted into the housing and displace the receptacle terminals in an insertion direction to fix the position of the receptacle terminals. Accordingly, defects that include an insertion of the terminals during fastening of the retainer to the housing are detected and the receptacle terminals are compressed by the retainer. The shapes of a top surface and a bottom surface of the retainer are formed in an asymmetrical structure to prevent an inverse insertion of the retainer. Simultaneously, a quality problem due to delamination of the retainer is prevented.
    Type: Application
    Filed: November 16, 2016
    Publication date: October 26, 2017
    Inventors: Sung Kwan Choo, Hye Ji Youn, Kyu Taek Jung, Kun Sung Song
  • Publication number: 20170306330
    Abstract: The present disclosure provides a pharmaceutical composition for treating cancer comprising an RNA oligonucleotide having a particular sequence and structure. Specifically, when a cell line is treated with an RNA oligonucleotide having specific sequence and helical bend structure according to the present disclosure, the expression of ISG56 is increased and apoptosis of cancer cells is induced. Thus, a composition comprising the RNA oligonucleotide can be used as an anticancer agent.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 26, 2017
    Inventors: Byong-Seok CHOI, Suk-Jo KANG, Janghyun LEE, Ji Youn MIN
  • Publication number: 20170309795
    Abstract: A light emitting diode package includes: a housing; a light emitting diode chip arranged in the housing; a wavelength conversion unit arranged on the light emitting diode chip; a first fluorescent substance distributed inside the wavelength conversion unit and emitting light having a peak wavelength in the cyan wavelength band; and a second fluorescent substance distributed inside the wavelength conversion unit and emitting light having a peak wavelength in the red wavelength band, wherein the peak wavelength of light emitted from the light emitting diode chip is located within a range of 415 nm to 430 nm.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 26, 2017
    Inventors: Myung Jin KIM, Kwang Yong OH, Ki Bum NAM, Ji Youn OH, Sang Shin PARK, Michael LIM
  • Patent number: 9799839
    Abstract: An organometallic compound and an organic light-emitting diode (OLED) including the organometallic compound are provided. In exemplary embodiments, the organometallic compound is a platinum complex comprising one or two heterocyclic ligands, the heterocyclic ligands being the same or different if they are two in number, each heterocyclic ligand comprising two nitrogen heterocyclic rings connected by a single bond, one of the rings being six membered and comprising at least one nitrogen and the other ring being a 1,2-diazole or a 1,2,4-triazole ring. One or two other organic ligands may be attached to the central platinum atom in the complex. OLEDs including one of the subject platinum compounds in a light emission layer exhibit lower driving voltages, higher luminances, higher efficiencies and longer lifetimes than do comparative OLEDs built with established dopants incorporated into the light emitting layers.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: October 24, 2017
    Assignee: Samsung Diplay Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9791607
    Abstract: An optical element and a use of the optical element are provided. The exemplary optical element can be useful in realizing a smart blind having excellent transmission and blocking characteristics in front and lateral surfaces thereof without using a retardation film by employing a polarizing layer whose polarization characteristics are patterned using a guest/host-type dye layer including a polymerizable liquid crystal compound and a dichroic dye. Such an optical element may be applied to various light modulating devices such as smart blinds, smart windows, window protective films, flexible display elements, active retarders for displaying a 3D image, or viewing angle adjustment films.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 17, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sin Young Kim, Ji Youn Lee, Moon Soo Park, Hyuk Yoon
  • Patent number: 9793640
    Abstract: A joint connector is provided. The joint connector includes a housing, receptacle terminals configured to be inserted into the housing and a retainer configured to be slidably inserted into the housing and displace the receptacle terminals in an insertion direction to fix the position of the receptacle terminals. Accordingly, defects that include an insertion of the terminals during fastening of the retainer to the housing are detected and the receptacle terminals are compressed by the retainer. The shapes of a top surface and a bottom surface of the retainer are formed in an asymmetrical structure to prevent an inverse insertion of the retainer. Simultaneously, a quality problem due to delamination of the retainer is prevented.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 17, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Sung Kwan Choo, Hye Ji Youn, Kyu Taek Jung, Kun Sung Song
  • Publication number: 20170293058
    Abstract: The present application relates to a liquid crystal composition, a polarizing element and a use of the polarizing element. Since the polarizing element may be prepared by a simple coating process, the guest host type liquid crystal composition of the present application allows not only for reducing the manufacturing cost and lightweight thinning of the polarizing element, but also for manufacturing the polarizing element showing an excellent heat resistant stability without changes of absorption spectrum to transmission spectrum even in a severe condition such as high temperature environment. Such a polarizing element can be applied to various display devices such as liquid crystal display devices, EL display devices, field emission display devices, display devices using electronic papers, projection display devices or piezoelectric ceramic display devices.
    Type: Application
    Filed: July 4, 2016
    Publication date: October 12, 2017
    Inventors: Ji Youn LEE, Sin Young KIM, Moon Soo PARK, Dae Hee LEE
  • Patent number: 9761808
    Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9722182
    Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting device including the heterocyclic compound:
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: August 1, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Publication number: 20170211178
    Abstract: Provided is a surface treatment method, including: preparing a composite comprising chromium (Cr) of about 95 to 98 atomic percents and copper (Cu) of about 2 to 5 atomic percents with respect to the total number of atoms in the composite; and forming a coating layer comprising Cr of about 30 to 40 atomic, Cu of about 2 to 5 atomic percents, with respect to the total number of atoms of the coating layer, and N constituting the balance of the atoms of the coating layer, by sputtering from the composite in a nitrogen-containing atmospheric gas. Further, provided is a vehicle part, surface of which is treated with the same method.
    Type: Application
    Filed: October 19, 2015
    Publication date: July 27, 2017
    Inventors: Woong Pyo Hong, Jung Yeon Park, Kwang Hoon Choi, Bo Kyung Kim, In Woong Lyo, Ji Youn Seo
  • Patent number: 9691992
    Abstract: An organic light-emitting diode includes a substrate, a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, and the emission layer includes a first compound represented by Formula 1 and a second compound represented by Formula 100.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: June 27, 2017
    Assignee: Samsung Displey Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9666731
    Abstract: A composition for solar cell electrodes, an electrode fabricated using the same, and a solar cell including the electrode, the composition including a conductive powder; a glass frit; and an organic vehicle, wherein the conductive powder includes silver powder and aluminum powder, the silver powder includes silver particles having an average particle size D50 of 1.5 ?m or more in an amount of 50 wt % or more, based on a total weight of the silver powder.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 30, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Young Wook Choi, Eun Kyung Kim, Ji Youn Lee
  • Patent number: 9653525
    Abstract: A light emitting display device includes a substrate, a first electrode, a pixel defining layer, a light emitting layer, a second electrode, and a reflective pattern. The substrate includes a plurality of pixels, each including a top emission pixel in a first area and a bottom emission pixel in a second area. The first electrode is in the first area and the second area. The pixel defining layer includes pixel openings to expose the first electrode and reflective pattern openings between adjacent pixels. The light emitting layer is on the first electrode, and the second electrode is on the light emitting layer. The reflective pattern is in the reflective pattern opening and spaced from the second electrode in the first area.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hun Park, Yong Duck Son, Jae Hwan Oh, Ji Youn Lee, Young Jin Chang, Jae Beom Choi
  • Patent number: 9652120
    Abstract: The present disclosure relates to an electronic device and a method of controlling a screen. The method of controlling a screen of an electronic device includes transmitting a request comprising at least one keyword to a server. Thumbnails are arranged into an image. The thumbnails are associated with digital content corresponding most with at least one keyword in the request. The image is rendered on a screen.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 16, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jung Kwon, Sung-Wang Kim, Ji-Youn Kim
  • Patent number: 9634074
    Abstract: A transparent display substrate including a base substrate having a pixel area and a transmission area, a thickness of the base substrate at the transmission area being less than a thickness of the base substrate at the pixel area, a pixel circuit at the pixel area of the base substrate, an insulation structure covering the pixel circuit, the insulation structure having an opening or a concave portion at the transmission area of the base substrate, and a pixel electrode at the pixel area of the base substrate and extending at least partially through the insulation structure to be electrically connected to the pixel circuit.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: April 25, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Duck Son, Ji-Youn Lee, Dae-Woo Lee, Jae Beom Choi
  • Patent number: 9635130
    Abstract: Methods and apparatuses for setting communication with devices included in a group are provided. The method includes receiving, from a host device included in the group, a communication initiation request for setting communication between the host device and the first client device, determining whether to set communication with the host device based on a communication state of the first client device, receiving, from a second client device, a communication extension request for setting communication between the second client device and the first client device, determining whether the second client device is included in the group, and in response to the second client device being included in the group, determining whether to set communication with the second client device based on whether communication with the host device and the first client device is set.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-youn Jung, Bae-eun Jung
  • Patent number: 9635432
    Abstract: A method of setting a function and a display apparatus applying the same are provided. The method of setting a function of the display apparatus includes displaying a set item list, which includes one or more set items, on a screen of the display apparatus; and in response to a set item on the set item list being selected, providing a menu for accessing one or more other set items associated with the selected set item.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-youn Han, Chang-seog Ko, Won-il Kim, Kyeong-a Han