Patents by Inventor Byoung Gon Yu

Byoung Gon Yu 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: 20150200382
    Abstract: Provided is an organic light-emitting diode (OLED) including: a substrate; a wide viewing-angle homogenization layer on the substrate; a first electrode layer on the wide viewing-angle homogenization layer; a hole transport layer on the first electrode layer; an organic emission layer disposed on the hole transport layer to emit a light; an electron transport layer on the organic emission layer; and a second electrode layer on the electron transport layer.
    Type: Application
    Filed: August 5, 2014
    Publication date: July 16, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jaehyun MOON, Seung Koo PARK, Doo-Hee CHO, Jonghee LEE, Jin Woo HUH, Jin Wook SHIN, Jun-Han HAN, Joo Hyun HWANG, Chul Woong JOO, Nam Sung CHO, Jong Tae LIM, Byoung Gon YU, Jeong Ik LEE
  • Publication number: 20150155340
    Abstract: Provided is a dual-mode display including a substrate and a plurality of sub-pixels on the substrate, in which each sub-pixel includes an emissive device, a color selection reflector disposed on one side of the emissive device, and an optical shutter disposed on another side of the emissive device, wherein the emissive device includes a cathode and an anode, and the cathode and the anode include a carbon-based material including graphene sheets, graphene flakes, and graphene platelets, and a binary or ternary transparent conductive oxide including indium oxide, tin oxide, and zinc oxide.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 4, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jong Tae LIM, Joon Tae AHN, Jeong Ik LEE, Hye Yong CHU, Byoung Gon YU, Jonghee LEE, Jun-Han HAN, Jaehyun MOON
  • Patent number: 9035688
    Abstract: Provided is a single input level shifter. The single input level shifter includes: an input unit applying a power voltage to a first node in response to an input signal and applying the input signal to a second node in response to a reference signal; a bootstrapping unit applying the power voltage to the second node according to a voltage level of the first node; and an output unit applying the input signal to an output terminal in response to the reference signal and applying the power voltage to the output terminal according to the voltage level of the first node, wherein the bootstrapping unit includes a capacitor between the first and second nodes, and when the input signal is shifted from a first voltage level to a second voltage level, the bootstrapping unit raises the voltage level of the first node to a level higher than the power voltage.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: May 19, 2015
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP.
    Inventors: Jae-Eun Pi, Kee-Chan Park, Sangyeon Kim, Joondong Kim, Yeon Kyung Kim, HongKyun Lym, Sang-Hee Park, Byoung Gon Yu, Chi-Sun Hwang, Jong Woo Kim, OhSang Kwon, Min Ki Ryu
  • Patent number: 8994059
    Abstract: The inventive concept provides organic light emitting diodes and methods of manufacturing an organic light emitting diode. The organic light emitting diode includes a substrate, a first electrode layer and a second electrode layer formed on the substrate, an organic light emitting layer disposed between the first electrode layer and the second electrode layer and generating light, and a scattering layer between the first electrode layer and the substrate or between the first electrode layer and the organic light emitting layer. The scattering layer scatters the light.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 31, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Huh, Jeong Ik Lee, Chul Woong Joo, Doo-Hee Cho, Jin Wook Shin, Jaehyun Moon, Jun-Han Han, Joo Hyun Hwang, Hye Yong Chu, Byoung Gon Yu
  • Publication number: 20150086761
    Abstract: Provided is a method of fabricating a light functional substrate. The method includes applying particles onto a surface of water contained in a container to form a monolayer constituted by the particles, immersing a substrate into the container, drawing the substrate out of the container to form patterns constituted by the particles on the substrate in a first direction, and forming a planarization film covering the patterns on the substrate.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 26, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jaehyun MOON, Seung Koo PARK, Doo-Hee CHO, Jin Wook SHIN, Jun-Han HAN, Jonghee LEE, Joo Hyun HWANG, Chul Woong JOO, Jin Woo HUH, Nam Sung CHO, Jong Tae LIM, Jeong Ik LEE, Byoung Gon YU
  • Patent number: 8901532
    Abstract: Provided is a non-volatile programmable device including a first terminal, a first threshold switching layer connected to part of the first terminal, a phase change layer connected to the first threshold switching layer, a second threshold switching layer connected to the phase change layer, a second terminal connected to the second threshold switching layer, and third and fourth terminals respectively connected to a side portion of the phase change layer and the other side portion opposite to the side portion of the phase change layer.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: December 2, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Yun Lee, Young Sam Park, Sung Min Yoon, Soonwon Jung, Sang Hoon Cheon, Byoung Gon Yu
  • Patent number: 8872146
    Abstract: Provided are a Phase-change Random Access Memory (PRAM) device and a method of manufacturing the same. In particular, a PRAM device including a heating layer, wherein the heating layer comprises first and second heating layers having different physical properties from each other and a method of manufacturing the same are provided. Since the PRAM device according to the present invention includes a heating layer having optimal heating characteristics, a PRAM device having high reliability and excellent operating characteristics can be manufactured.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: October 28, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung-Yun Lee, Young Sam Park, Sung Min Yoon, Kyu-Jeong Choi, Nam-Yeal Lee, Byoung-Gon Yu
  • Publication number: 20140167022
    Abstract: The inventive concept provides organic light emitting diodes and methods of manufacturing an organic light emitting diode. The organic light emitting diode includes a substrate, a first electrode layer and a second electrode layer formed on the substrate, an organic light emitting layer disposed between the first electrode layer and the second electrode layer and generating light, and a scattering layer between the first electrode layer and the substrate or between the first electrode layer and the organic light emitting layer. The scattering layer scatters the light.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo HUH, Jeong Ik LEE, Chul Woong JOO, Doo-Hee CHO, Jin Wook SHIN, Jaehyun MOON, Jun-Han HAN, Joo Hyun HWANG, Hye Yong CHU, Byoung Gon YU
  • Patent number: 8749300
    Abstract: Disclosed is a DC voltage conversion circuit of a liquid crystal display apparatus, including: a main pumping circuit including a plurality of thin film transistors and configured to output voltage for driving a liquid crystal display apparatus when the plurality of thin film transistors are alternately turned on or off; and a switch control signal generator configured to control voltages applied to gates of the plurality of thin film transistors by inversion of a clock signal, in which each thin film transistor is turned on when positive gate-source voltage is applied thereto, and turned off when negative gate-source voltage is applied thereto.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: June 10, 2014
    Assignees: Electronics and Telecommunications Research Institute, Konkuk University Industrial Cooperation Corp.
    Inventors: Jae Eun Pi, Kee Chan Park, Hong Kyun Leem, Joon Dong Kim, Youn Kyung Kim, Ji Sun Kim, Byoung Gon Yu, Sang Hee Park, Him Chan Oh, Min Ki Ryu, Chi Sun Hwang
  • Publication number: 20140145160
    Abstract: Provided is a method of fabricating an organic scattering layer. The method may include providing a deposition apparatus with a reaction chamber and a source chamber, loading a substrate in the reaction chamber, supplying carrier gas into the source chamber that may be configured to supply an evaporated organic source material into the reaction chamber, a temperature of the carrier gas ranging from 25° C. to 50° C., and spraying the carrier gas and the evaporated organic source material into the reaction chamber through a showerhead to deposit an organic scattering layer on the substrate, the organic scattering layer including organic particles, which may be provided in a molecularized form of the evaporated organic source material, and thereby having an uneven surface.
    Type: Application
    Filed: September 6, 2013
    Publication date: May 29, 2014
    Applicants: UNITEX Co., LTD, Electronics and Telecommunications Research Institute
    Inventors: Nam Sung Cho, Jeong Ik Lee, Joo Hyun Hwang, Chul Woong Joo, Jun-Han Han, Seung Koo Park, Jaehyun Moon, Doo-Hee Cho, Jin Wook Shin, Hye Yong Chu, Seongdeok Ahn, Jin Woo Huh, Myung Gi Lee, Kyung Soo Suh, Byoung Gon Yu
  • Patent number: 8716035
    Abstract: Provided are a nonvolatile memory cell and a method of manufacturing the same. The nonvolatile memory cell includes a memory transistor and a driver transistor. The memory transistor includes a semiconductor layer, a buffer layer, an organic ferroelectric layer, and a gate electrode, which are disposed on a substrate. The driver transistor includes the semiconductor layer, the buffer layer, a gate insulating layer, and the gate electrode, which are disposed on the substrate. The memory transistor and the driver transistor are disposed on the same substrate. The nonvolatile memory cell is transparent in a visible light region.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: May 6, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Min Yoon, Chun Won Byun, Shin Hyuk Yang, Sang Hee Park, Soon Won Jung, Seung Youl Kang, Chi Sun Hwang, Byoung Gon Yu
  • Patent number: 8710496
    Abstract: Disclosed are an organic light emitting diode device and a method of fabricating the organic light emitting diode device capable of achieving high light extraction efficiency even without a high-cost and complicated process. The organic light emitting diode device according to an exemplary embodiment of the present disclosure includes a substrate; a phase change thin film layer formed on the substrate and formed of a phase change material changeable from an amorphous state to a crystalline state or from a crystalline state to an amorphous state; and an anode electrode layer, an organic light emitting layer and a cathode electrode layer which are sequentially formed on the phase change thin film layer.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 29, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Byoung Gon Yu, Jeong Ik Lee, Doo-Hee Cho
  • Patent number: 8710866
    Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: April 29, 2014
    Assignees: Electronics and Telecomunications Research Institute, Konkuk University Industrial Cooperation Corp.
    Inventors: Sang Hee Park, Chi Sun Hwang, Sung Min Yoon, Him Chan Oh, Kee Chan Park, Tao Ren, Hong Kyun Leem, Min Woo Oh, Ji Sun Kim, Jae Eun Pi, Byeong Hoon Kim, Byoung Gon Yu
  • Patent number: 8685768
    Abstract: The inventive concept provides organic light emitting diodes and methods of manufacturing an organic light emitting diode. The organic light emitting diode includes a substrate, a first electrode layer and a second electrode layer formed on the substrate, an organic light emitting layer disposed between the first electrode layer and the second electrode layer and generating light, and a scattering layer between the first electrode layer and the substrate or between the first electrode layer and the organic light emitting layer. The scattering layer scatters the light.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 1, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Huh, Jeong Ik Lee, Chul Woong Joo, Doo-Hee Cho, Jin Wook Shin, Jaehyun Moon, Jun-Han Han, Joo Hyun Hwang, Hye Yong Chu, Byoung Gon Yu
  • Publication number: 20140062572
    Abstract: Provided is a single input level shifter. The single input level shifter includes: an input unit applying a power voltage to a first node in response to an input signal and applying the input signal to a second node in response to a reference signal; a bootstrapping unit applying the power voltage to the second node according to a voltage level of the first node; and an output unit applying the input signal to an output terminal in response to the reference signal and applying the power voltage to the output terminal according to the voltage level of the first node, wherein the bootstrapping unit includes a capacitor between the first and second nodes, and when the input signal is shifted from a first voltage level to a second voltage level, the bootstrapping unit raises the voltage level of the first node to a level higher than the power voltage.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicants: Electronics and Telecommunications Research Institute, Konkuk University Industrial Cooperation Corp.
    Inventors: Jae-Eun PI, Kee-Chan PARK, Sangyeon KIM, Joondong KIM, Yeon Kyung KIM, HongKyun LYM, Sang-Hee PARK, Byoung Gon YU, Chi-Sun HWANG, Jong Woo KIM, OhSang KWON, Min Ki RYU
  • Publication number: 20140035621
    Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicants: Konkuk University Industrial Cooperation Corp, ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang Hee PARK, Chi Sun HWANG, Sung MIN Yoon, Him Chan OH, Kee Chan PARK, Tao REN, Hong Kyun LEEM, Min Woo OH, Ji Sun KIM, Jae Eun PI, Byeong Hoon KIM, Byoung Gon YU
  • Publication number: 20140035622
    Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicants: Konkuk University Industrial Cooperation Corp, ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang Hee PARK, Chi Sun Hwang, Sung Min Yoon, Him Chan Oh, Kee Chan Park, Tao Ren, Hong Kyun Leem, Min Woo Oh, Ji Sun Kim, Jae Eun Pi, Byeong Hoon Kim, Byoung Gon Yu
  • Publication number: 20140029267
    Abstract: Provided are a random wrinkle structure-formable compound, a composition including the same, a film including a random wrinkle structure, a method of forming the film, and an organic light emitting device including the film. A compound according to the present invention is coated and then, a film having a surface structure of random wrinkles may be simply formed through simple ultraviolet (UV) curing or thermosetting. When the film thus formed is used in an organic light emitting device, light generated from the organic light emitting device is scattered on surfaces of the random wrinkles to prevent light guide or total reflection, and thus, light is extracted to the outside. That is, a random structure disposed at the outside of the device performs a light extraction function and consequently, light efficiency of the organic light emitting device may be increased.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 30, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jaehyun MOON, Seung Koo Park, Jeong Ik Lee, Jin Wook Shin, Doo-Hee Cho, Joo Hyun Hwang, Chul Woong Joo, Jun-Han Han, Jin Woo Huh, Joon Tae Ahn, Nam Sung Cho, Hye Yong Chu, Byoung Gon Yu
  • Publication number: 20140011297
    Abstract: Provided are a nonvolatile memory cell and a method of manufacturing the same. The nonvolatile memory cell includes a memory transistor and a driver transistor. The memory transistor includes a semiconductor layer, a buffer layer, an organic ferroelectric layer, and a gate electrode, which are disposed on a substrate. The driver transistor includes the semiconductor layer, the buffer layer, a gate insulating layer, and the gate electrode, which are disposed on the substrate. The memory transistor and the driver transistor are disposed on the same substrate. The nonvolatile memory cell is transparent in a visible light region.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATION RESEARCH INSTITUTE
    Inventors: Sung Min YOON, Chun Won BYUN, Shin Hyuk YANG, Sang Hee PARK, Soon Won JUNG, Seung Youl KANG, Chi Sun HWANG, Byoung Gon YU
  • Patent number: RE45356
    Abstract: Provided are a phase-change memory device using a phase-change material having a low melting point and a high crystallization speed, and a method of fabricating the same. The phase-change memory device includes an antimony (Sb)-selenium (Se) chalcogenide SbxSe100-x phase-change material layer contacting a heat-generating electrode layer exposed through a pore and filling the pore. Due to the use of SbxSe100-x in the phase-change material layer, a higher-speed, lower-power consumption phase-change memory device than a GST memory device can be manufactured.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 3, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Min Yoon, Nam Yeal Lee, Sang Ouk Ryu, Seung Yun Lee, Young Sam Park, Kyu Jeong Choi, Byoung Gon Yu