Patents by Inventor Chang Ho Lee

Chang Ho 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).

  • Organic light emitting diode and method for manufacturing the same
    Patent number: 9178001
    Abstract: The present invention provides an organic light emitting diode comprising a substrate comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; a first electrode disposed on the substrate; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode; and a first layer disposed between the first electrode and the second electrode and containing an ambipolar compound, and a method for manufacturing the organic light emitting diode.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: November 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Sun-Young Lee, Bum-Woo Park, Chang-Ho Lee, Se-Jin Cho, Jong-Hyuk Lee, Hee-Joo Ko
  • Multi-mode multi-band power amplifiers
    Patent number: 9160377
    Abstract: Exemplary embodiments are directed to an amplifier module which may comprise a transmit path including a first amplifier and a second amplifier. The exemplary amplifier module may further include a transformer coupled between the first amplifier and the second amplifier and switchably configured for coupling the first amplifier in series with the second amplifier in a first mode and coupling the first amplifier to bypass the second amplifier in a second mode.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 13, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chang-Ho Lee, Woonyun Kim, Minsik Ahn, Jeongwon Cha, Yunseo Park, Aristotele Hadjichristos
  • Organic light-emitting device
    Patent number: 9159947
    Abstract: An organic light-emitting device, including a first electrode, the first electrode having a smaller absolute value of a work function energy level than an absolute value of a work function energy level of ITO, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee-Joo Ko, Chang-Ho Lee, Il-Soo Oh, Se-Jin Cho, Hyung-Jun Song, Jin-Young Yun, Jong-Hyuk Lee
  • Electronic device and method for changing setting value
    Patent number: 9129546
    Abstract: A method and an apparatus for operating an electronic device for changing a setting value are provided. In the method, a touch input for a set region is detected, so that a mode is switched to a setting change mode for changing a stored setting value. At least one guide interface for receiving a change of at least one setting value among stored setting values is displayed. A predetermined gesture for an arbitrary region of the displayed at least one guide interface is detected, so that whether to store a changed at least one setting value is determined.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: September 8, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Ho Lee
  • Organic light emitting diode
    Patent number: 9105860
    Abstract: A full color organic light emitting diode having high efficiency and high color purity while having low manufacturing costs due to simple manufacturing processes.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: August 11, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Hee-Joo Ko, Jong-Hyuk Lee, Chang-Ho Lee
  • High power tunable capacitor
    Patent number: 9106198
    Abstract: A high power tunable capacitor is disclosed. In an exemplary embodiment, an apparatus includes a capacitor coupled to an input signal, a body contacted switch coupled to the capacitor, the body contacted switch coupled to a body bias signal, and a floating body switch coupled between the body contacted switch and a ground, the floating body switch configured to decouple the body bias signal from the ground.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: August 11, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Minsik Ahn, Kyu Hwan An, Chang-Ho Lee, Aristotele Hadjichristos
  • Multilayer ceramic electronic component
    Patent number: 9099245
    Abstract: A multilayer ceramic electronic component includes a ceramic main body having internal and floating electrode layers laminated therein and spaced apart from each other; and external electrodes formed on ends of the ceramic main body and including a first layer including a conductive metal and a second layer formed on the first layer and including a conductive resin. When Tc is thickness of a cover layer, G is gap between internal electrodes, L1 is length from either end of the ceramic main body in a length direction thereof to an end of the first layer formed on the upper or lower surface of the ceramic main body, Te is thickness of the internal electrode, Td is distance between internal and floating electrode layers, Lm is length of a margin part of the floating electrode layer, and L is length of the ceramic main body, Tc?80 ?m, (1.5)Lm?G?(L?2Lm), and L1<Lm+(Tc+Te+Td)×cot 50° are satisfied.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Chang Ho Lee
  • Organic light-emitting display and methods of manufacturing the same
    Patent number: 9093663
    Abstract: An organic light-emitting display including a conductive-organic small molecular filling material and methods of manufacturing the same are disclosed. The organic light-emitting display includes a substrate, a display unit disposed on the substrate, a sealing substrate disposed above the display unit, a sealing member that attaches the substrate to the sealing substrate and disposed outside the display unit; and a filling material filling a space between the substrate and the sealing substrate inwards from the sealing member, wherein the filling material is a conductive-organic small molecule.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: July 28, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hwan Yoon, Chang-Ho Lee, Sang-Woo Pyo
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9079903
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein X1 and X2, X1 and R1 to R10 are defined as in the specification.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum-Woo Park, Yoon-Hyun Kwak, Sun-Young Lee, Chang-Ho Lee, Se-Jin Cho
  • POLYOXYMETHYLENE RESIN COMPOSITION
    Publication number: 20150184110
    Abstract: A novel polyoxymethylene resin composition is provided, which may be availably used as engineered plastics in various industrial fields and products, such as vehicle parts. The poly resin includes polyoxymethylene, aramide fibers, and thermoplastic polyurethane, thereby providing the novel composition of polyoxymethylene resin and improving various physical properties thereof, such as thermal stability.
    Type: Application
    Filed: October 27, 2014
    Publication date: July 2, 2015
    Inventors: Duck Hyoung Hwang, Gyung Seob Byun, Seung Chin Park, Chang Ho Lee, Hyo Je Seong
  • STEREOPSIS IMAGE DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
    Publication number: 20150189259
    Abstract: A stereopsis image display device is provided that prevents 3D crosstalk from being generated and enables a lenticular film to be freely bent. The stereopsis image display device comprises a plurality of data lines arranged in a first direction; a plurality of gate lines arranged in a second direction; a plurality of sub pixels defined by crossing between the plurality of gate lines and the plurality of data lines; and a lenticular film provided on the plurality of sub pixels, wherein the plurality of sub pixels are provided in a horizontal 2-domain structure.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Chung Hwan An, Jae Woo Lee, Chang Ho Lee, Bo Gyun Chung, Yoon Sung Tak
  • Organic light emitting diode display
    Patent number: 9070645
    Abstract: An organic light emitting diode (OLED) display including a substrate main body; a thin film transistor on the substrate main body; and an organic light emitting diode including a transparent electrode connected with the thin film transistor and being capable of injecting electrons, an organic emission layer on the transparent electrode, and a reflective electrode on the organic emission layer and being capable of injecting holes, wherein the organic emission layer includes an electron injection unit on the transparent electrode, the electron injection unit including an electron injection metal layer, an electron injection layer, and an electron injection dipole layer, and a light emitting unit on the electron injection unit.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: June 30, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee-Joo Ko, Chang-Ho Lee, Il Soo Oh, Se-Jin Cho, Hyung-Jun Song, Jin-Young Yun, Jong-Hyuk Lee
  • SWITCHABLE TYPE TOUCH DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    Publication number: 20150177549
    Abstract: A switchable type touch display device includes: a display panel displaying an image; a touch polarization control panel over the display panel, wherein the touch polarization control panel includes: first and second touch polarization control substrates; a first electrode on an inner surface of the first touch polarization control substrate; a second electrode on an inner surface of the second touch polarization control substrate; a third electrode on an outer surface of the second touch polarization control substrate; and a polarization control liquid crystal layer between the first and second touch polarization control substrates; and a lens panel over the touch polarization control panel.
    Type: Application
    Filed: October 6, 2014
    Publication date: June 25, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Chung-Hwan AN, Chang-Ho LEE, Keong-Jin LEE, Joo-Ah KIM, Tae-Young HEO
  • METHOD AND APPARATUS FOR OUTPUTTING DIGITAL CONTENT
    Publication number: 20150178253
    Abstract: A method is provided comprising: retrieving a markup language file associated with a document, the markup language file including an identifier for retrieving a content item that is part of the document; parsing the markup language file into a first plurality of objects, the first plurality of objects including a first object associated with the content item; assigning a respective layout level to each one of the first plurality of objects; and outputting the document in accordance with a first layout level by: (i) retrieving the content item from a remote source in response to the layout level of the first object matching the first layout level, and (ii) rendering one or more objects from the first plurality based the one or more objects' respective layout levels matching the first layout level.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventors: Kyung-Tae KIM, Yang-Wook KIM, Hye-Rim BAE, Sun-Key LEE, Chang-Hyup JWA, Doo-Suk KANG, Chang-Ho LEE, Sae-Mee YIM, Yong-Joon JEON
  • PRODUCTION METHOD FOR BIOMEDICAL AND INDUSTRIAL MATERIAL USING CERAMIC DERIVED FROM BIRDS' BEAKS
    Publication number: 20150165090
    Abstract: The present invention relates to a method for preparing a ceramic powder from a bone of a bird's beak, a method for preparing biomedical or industrial ceramic materials by using the ceramic powder derived from a bone of a bird's beak, and a biomedical or industrial ceramic material prepared by the method thereof. The use of the present ceramic powder for manufacturing biomedical or industrial ceramic materials is safer than the use of the ceramic powder derived from allogenic bone or xenogeneic bone. In addition, the ceramic powder of the present invention can be prepared on a mass production basis. Furthermore, the ceramic material prepared using the ceramic powder of the present invention is more biocompatible than that prepared using artificially synthetic ceramic.
    Type: Application
    Filed: November 23, 2012
    Publication date: June 18, 2015
    Inventors: Seok Hwa Choi, Jun Sik Son, Seong Soo Kang, Chang Ho Lee
  • CHIP RESISTOR
    Publication number: 20150170804
    Abstract: A chip resistor may include: a body having a plurality of substrates stacked therein; a plurality of resistors formed in the body with respective substrates interposed therebetween and exposed through both end surfaces of the body; and first and second electrodes covering both end surfaces of the body, respectively, and connected to both end portions of the exposed resistors, respectively.
    Type: Application
    Filed: March 21, 2014
    Publication date: June 18, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hun CHO, Young Key Joo Kim, Chang Ho Lee, Byung Sung Kang
  • ORGANIC LIGHT EMITTING DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20150155342
    Abstract: An organic light emitting display device and a method for manufacturing the organic light emitting display device, which includes a light emitting region and a non-light emitting region, and having an organic light emitting element including first and second electrodes disposed in the light emitting region and an organic emission layer formed between the two electrodes, a driving voltage supply line disposed in the non-light emitting region and providing a driving voltage to the first and second electrodes, and a contact part disposed in the non-light emitting region and disposed to be in contact with the first electrode to supply the driving voltage provided from the driving voltage supply line to the first electrode, wherein the contact part is formed as multiple layers patterned such that a second conductive layer covers a first conductive layer.
    Type: Application
    Filed: November 6, 2014
    Publication date: June 4, 2015
    Inventors: Jeong-Hwan Kim, Seong-Kweon Heo, Jong-Hyun Park, Chang-ho Lee
  • Display apparatus including bi-directional gate drive circuit
    Patent number: 9047803
    Abstract: A gate drive circuit includes a plurality of driving stages. An n-th (‘n’ is a natural number) driving stage includes a pull-up part, a carry part, a first pull-down part, a first pull-up/down control part and a second pull-up/down control part. The first pull-up/down control part applies a first power signal of an ON voltage to a control terminal of the pull-up part in a forward direction mode, and applies the first power signal of a second OFF voltage to a control terminal of the pull-up part in a reverse direction mode. The second pull-up/down control part applies a second power signal of the second OFF voltage to the control terminal of the pull-up part in the forward direction mode, and applies the second power signal of the ON voltage to the control terminal of the pull-up part in the reverse direction mode.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: June 2, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hoon Lee, Chang-Ho Lee, Jun-Yong Song, Yu-Han Bae
  • MICROWAVE RANGE
    Publication number: 20150129585
    Abstract: A microwave range includes a main body having a cooking chamber therein; and a tray unit in the cooking chamber, in which the tray unit is configured to rotate food on a first plane and a second plane, the second plane being is orthogonal to the first plane.
    Type: Application
    Filed: December 18, 2013
    Publication date: May 14, 2015
    Applicant: Dongbu Daewoo Electronics Corporation
    Inventor: Chang Ho LEE
  • Speaker for mobile communication terminal
    Patent number: D733094
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: June 30, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Ho Lee, Won-Suk Chung