Patents by Inventor Jeong Ik Lee

Jeong Ik Lee 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: 20160159686
    Abstract: A composition for forming film having wrinkle structure and a method of forming the film are disclosed. The composition includes photo-curable agent and photoinitiator dissolved in the photo-curable agent. The cut off wavelength of light transmittance of the photo-curable agent is greater than the cut off wavelength of light absorbance of the photoinitiator. Photo-cured thin film is formed at the upper portion of composition layer at an initial time period of irradiation. By subsequent contraction, the photo-cured thin film forms wrinkles. The wrinkle structure is controlled by the relation of the cut off wavelength of light transmittance of the photo-curable agent and the cut off wavelength of light absorbance of the photoinitiator, the photo-curing rate of the composition and the thickness of the composition layer, and the photoinitiator concentration, etc., before photo-curing. The film may increase the emission efficiency of LED and OLED and the sensing effect of sensor.
    Type: Application
    Filed: August 10, 2015
    Publication date: June 9, 2016
    Inventors: Seung Koo PARK, Jaehyun MOON, JEONG IK LEE, Byoung Gon YU, Jonghee LEE, Chul Woong JOO, Doo-Hee CHO, Jun-Han HAN
  • Publication number: 20160155994
    Abstract: Provided is a method of manufacturing an organic light-emitting diode including forming an anode on a substrate, forming an organic light-emitting layer on the anode, forming a cathode on the organic light-emitting layer, and forming a light scattering film on the cathode. The light scattering film is a polycrystalline dielectric material composed of anisotropic crystals, and a surface roughness Ra of a top surface of the light scattering film is greater than or equal to about 50 nm by an anisotropic crystal growth of particles of the dielectric material.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Doo-Hee CHO, JEONG IK LEE, Jin Wook SHIN, Jin Woo HUH, Nam Sung CHO, Jonghee LEE, Seung Koo PARK, Jaehyun MOON
  • Patent number: 9356261
    Abstract: The inventive concept provides light emitting devices and methods of manufacturing a light emitting device. The light emitting device may include a transparent substrate including a first region and a second region, a first transparent electrode disposed on a first surface of the transparent substrate, a second transparent electrode facing and spaced apart from the first transparent electrode, an organic light emitting layer disposed between the first and second transparent electrodes, an assistant electrode disposed between the first and second transparent electrodes and selectively masking the second region, and a light path changing structure disposed on a second surface of the transparent substrate and selectively masking the second region.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 31, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong Ik Lee, Jin Woo Huh, Hye Yong Chu, Doo-Hee Cho, Jun-Han Han, Jin Wook Shin, Jaehyun Moon, Joo Hyun Hwang, Chul Woong Joo
  • Patent number: 9349992
    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: Grant
    Filed: September 21, 2015
    Date of Patent: May 24, 2016
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, UNITEX CO., LTD
    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: 9343486
    Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a thin film transistor, a first electrode electrically connected to the thin film transistor, a self-light emitting pixel layer disposed on the first electrode, a second electrode disposed on the self-light emitting pixel layer, a substrate in which an auxiliary wire is buried, the substrate being disposed on the second electrode, and a reflective pixel layer disposed on the substrate.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 17, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jonghee Lee, Jeong Ik Lee, Doo-Hee Cho, Jong Tae Lim, Ji-Young Oh, Joo Yeon Kim, Byoung Gon Yu, Hyunkoo Lee, Jun-Han Han, Hye Yong Chu
  • Publication number: 20160079319
    Abstract: A dual-mode display including a substrate and a plurality of sub-pixels on the substrate, in which each sub-pixel includes, a reflective device having an optical filter function which reflects different color according to electrical signals applied from outside the display, and an emissive device disposed on the reflective 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: November 4, 2015
    Publication date: March 17, 2016
    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
  • Publication number: 20160064693
    Abstract: Provided is a method of fabricating a light scattering layer. The method includes: coating a first surface of a substrate with a nano structure; and etching the substrate exposed to the nano structure by using the nano structure as an etching mask to allow the first surface of the substrate to have a recess to form first partitions protruding from the first surface of the substrate.
    Type: Application
    Filed: June 11, 2015
    Publication date: March 3, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jaehyun MOON, Jin Wook SHIN, Jonghee LEE, Seung Koo PARK, JEONG IK LEE, Doo-Hee CHO, Chul Woong JOO, Jun-Han HAN
  • Publication number: 20160056216
    Abstract: A dual-mode display including a substrate and a multiple sub-pixels on the substrate, in which each sub-pixel includes, a color selection reflector, and an optical shutter disposed on the color selection reflector, and an emissive devised disposed on the shutter, 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: November 3, 2015
    Publication date: February 25, 2016
    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
  • Publication number: 20160013448
    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 21, 2015
    Publication date: January 14, 2016
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, UNITEX Co., LTD
    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: 9236577
    Abstract: Provided are a dual-mode display device and a method of manufacturing the same. The device includes a lower substrate, an upper substrate facing the lower substrate, a thin-film transistor portion between the upper substrate and the lower substrate, a first anode on one side of the thin-film transistor portion, a first cathode between the first anode and the upper substrate, an organic light-emitting layer between the first cathode and the first anode, a second anode on the other side of the thin-film transistor portion, a second cathode between the second anode and the upper substrate, or the second anode and the lower substrate, and a optical switching layer between the second cathode and the second anode.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 12, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Bon Koo, Jeong Ik Lee, Chi-Sun Hwang, Hojun Ryu, Hye Yong Chu
  • Patent number: 9209232
    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: Grant
    Filed: July 18, 2014
    Date of Patent: December 8, 2015
    Assignee: 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
  • Publication number: 20150340659
    Abstract: Provided is an organic light emitting diodes (OLED) and method of manufacturing the OLED. The OLED includes: a substrate; a light scattering layer having an uneven shape on the substrate; a transparent electrode film provided directly on and in contact with the light scattering layer; an organic light emitting layer on the transparent electrode film; and an electrode on the organic light emitting layer. The method of manufacturing the OLED includes: disposing a light scattering layer on a substrate; providing a transparent electrode film on the light scattering layer; and transferring the transparent electrode film to be directly on and in contact with the light scattering layer.
    Type: Application
    Filed: March 19, 2015
    Publication date: November 26, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Wook SHIN, Jeong Ik LEE, HongKyw CHOI, Jaehyun MOON, Jonghee LEE, Nam Sung CHO, Doo-Hee CHO, Chul Woong JOO, Jun-Han HAN
  • Patent number: 9147856
    Abstract: An organic light emitting device is provided that includes a substrate; an embossing layer provided on the substrate; a planarization layer provided on the embossing layer; a first electrode provided on the planarization layer; an organic light emitting layer provided on the first electrode; and a second electrode provided on the organic light emitting layer. The planarization layer may include a first planarization layer provided on the embossing layer; and a second planarization layer provided on the first planarization layer. The embossing layer may have a refractive index ranging from about 1.3 to about 1.5. The planarization layer may include a first planarization layer having a surface roughness of about 10 nm to about 50 nm and a refractive index that ranges from about 1.8 to about 2.5; and a second planarization layer provided on the first planarization layer and having a surface roughness of less than about 10 nm.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: September 29, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Doo-Hee Cho, Jin Wook Shin, Jeong Ik Lee, Hye Yong Chu, Jun-Han Han, Joo Hyun Hwang, Seung Koo Park, Jaehyun Moon, Nam Sung Cho, Jin Woo Huh, Chul Woong Joo
  • Patent number: 9123914
    Abstract: Provided are an electronic device and a fabrication method thereof. The electronic device according to the concept of the present invention includes auxiliary interconnections disposed on a substrate, a light extraction layer that is provided on the substrate and fills between the auxiliary interconnection, and a first electrode provided on the auxiliary interconnections and the light extraction layer, wherein the light extraction layer may have a first surface facing the substrate and a second surface opposite to the first surface, the first surface may have protrusions, and the auxiliary interconnections may include a material having a lower resistance than the first electrode. Since electrical properties of the electronic device are improved, uniform light emission characteristics may be realized.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: September 1, 2015
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE, KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jeong Ik Lee, Jonghee Lee, Doo-Hee Cho, Jun-Han Han, Geon-Woong Lee, Joong-Tak Han, Do-Geun Kim, Sunghoon Jung
  • Publication number: 20150214452
    Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a thin film transistor, a first electrode electrically connected to the thin film transistor, a self-light emitting pixel layer disposed on the first electrode, a second electrode disposed on the self-light emitting pixel layer, a substrate in which an auxiliary wire is buried, the substrate being disposed on the second electrode, and a reflective pixel layer disposed on the substrate.
    Type: Application
    Filed: August 1, 2014
    Publication date: July 30, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jonghee LEE, Jeong Ik LEE, Doo-Hee CHO, Jong Tae LIM, Ji-Young OH, Joo Yeon KIM, Byoung Gon YU, Hyunkoo LEE, Jun-Han HAN, Hye Yong CHU
  • Publication number: 20150214485
    Abstract: Provided is a method of manufacturing an organic light-emitting device including a graphene layer. The method of manufacturing an organic light-emitting device according to the present invention may include providing a graphene donor unit including a patterned graphene layer, providing a device unit, and attaching the graphene layer of the graphene donor unit to an organic part. The device unit may include a substrate, a lower electrode, and the organic part which are sequentially stacked, and the organic part may include a dopant. The graphene donor unit may include the graphene layer, a release layer, and an elastic stamp layer which are sequentially stacked.
    Type: Application
    Filed: August 1, 2014
    Publication date: July 30, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jong Tae LIM, Jeong Ik LEE, Hye Yong CHU, Joon Tae AHN, Jonghee LEE, Jun-Han HAN, Ji-Young OH, Byoung Gon YU, Jaehyun MOON, Nam Sung CHO
  • 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: 20150160511
    Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a reflective display part including a first cathode electrode and a first anode electrode and a liquid crystal layer, a light emitting display part including a second cathode electrode and a second anode electrode and a light emission film, and a thin film transistor part being electrically connected to the first and second anode electrodes. The light emitting display part further includes a bank disposed on one side of the second anode electrode between the second anode electrode and the light emission film.
    Type: Application
    Filed: May 23, 2014
    Publication date: June 11, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Hae KIM, Gi Heon KIM, Hojun RYU, Chi-Sun HWANG, Jong-Heon YANG, Sang Chul LIM, Jae Bon KOO, Jonghee LEE, 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: 9040963
    Abstract: Provided is an organic light emitting device. The organic light emitting device comprising a first light emitting part on a substrate, emitting a first light of a first wavelength, wherein the first light emitting part includes a transparent first electrode, a first organic light emitting layer, and a transparent second electrode sequentially stacked on the substrate, a second light emitting part on the first light emitting part, emitting a second light of a second wavelength, wherein the second light emitting part includes a transparent third electrode, a second organic light emitting layer, and a reflective fourth electrode sequentially stacked on the first light emitting part, and a fluorescent material disposed at least one between the substrate and the first light emitting part, and between the first light emitting part and second light emitting part.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 26, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong Ik Lee, Chul Woong Joo, Jun-Han Han, Joo Hyun Hwang, Nam Sung Cho, Jin Woo Huh, Jaehyun Moon, Seung Koo Park, Jin Wook Shin, Doo-Hee Cho, Hye Yong Chu