Patents by Inventor Jae-eun Jang

Jae-eun Jang 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: 20080230853
    Abstract: In a transistor and a method of manufacturing the same, the transistor includes a channel layer arranged on a substrate, a source electrode and a drain electrode formed on the substrate so as to contact respective ends of the channel layer, a gate insulating layer surrounding the channel layer between the source electrode and the drain electrode, and a gate electrode surrounding the gate insulating layer.
    Type: Application
    Filed: November 28, 2007
    Publication date: September 25, 2008
    Inventors: Jae-Eun Jang, Seung-Nam Cha, Jae-Eun Jung, Yong-Wan Jin
  • Publication number: 20080150043
    Abstract: A transistor includes: a semiconductor substrate; a channel region arranged on the semiconductor substrate; a source and a drain respectively arranged on either side of the channel region; and a conductive nano tube gate arranged on the semiconductor substrate to transverse the channel region between the source and the drain. Its method of manufacture includes: arranging a conductive nano tube on a surface of a semiconductor substrate; defining source and drain regions having predetermined sizes and traversing the nano tube; forming a metal layer on the source and drain regions; removing a portion of the metal layer formed on the nano tube to respectively form source and drain electrodes separated from the metal layer on either side of the nano tube; and doping a channel region below the nano tube arranged between the source and drain electrodes by ion-implanting.
    Type: Application
    Filed: July 12, 2007
    Publication date: June 26, 2008
    Inventors: Seung-Nam Cha, Jae-Eun Jang, Jae-Eun Jung, Yong-Wan Jin, Byong-Gwon Song
  • Publication number: 20080061351
    Abstract: A nanowire electromechanical switching device is constructed with a source electrode and a drain electrode disposed on an insulating substrate and spaced apart from each other, a first nanowire vertically grown on the source electrode and to which a V1 voltage is applied, a second nanowire vertically grown on the drain electrode and to which a V2 voltage having an opposite polarity to that of the V1 voltage is applied, and a gate electrode spaced apart from the second nanowire, partially surrounding the second nanowire and having an opening that faces the first nanowire in order to avoid disturbing a mutual switching operation of the first nanowire and the second nanowire and to which a V3 voltage having the same polarity as that of the V2 voltage is applied.
    Type: Application
    Filed: August 14, 2007
    Publication date: March 13, 2008
    Inventors: Jae-Eun Jang, Seung-Nam Cha, Byong-Gwon Song, Yong-Wan Jin
  • Publication number: 20070138525
    Abstract: A memory device that performs writing and reading operations using a mechanical movement of a nanowire, and a method of manufacturing the memory device are provided. The memory device includes a source electrode, a drain electrode, and a gate electrode, each of which is formed on an insulating substrate. A nanowire capacitor is formed on the source electrode. The nanowire capacitor includes a first nanowire vertically grown from the source electrode, a dielectric layer formed on the outer surface of the first nanowire, and a floating electrode formed on the outer surface of the dielectric layer. A second nanowire is vertically grown on the drain electrode. The drain electrode is arranged between the source electrode and the gate electrode. The second nanowire is elastically deformed and contacts the nanowire capacitor when a drain voltage is applied to the drain electrode, and polarity of the drain voltage is opposite to polarity of a source voltage that is applied to the source electrode.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 21, 2007
    Inventors: Jae-Eun Jang, Seung-Nam Cha, Byong-Gwon Song, Yong-Wan Jin
  • Publication number: 20070051970
    Abstract: A nanowire electronmechanical device with an improved structure and a method of fabricating the same prevent burning of two nanowires which are switched due to contact with each other while providing stable on-off switching characteristics.
    Type: Application
    Filed: April 21, 2006
    Publication date: March 8, 2007
    Inventors: Jae-Eun Jang, Seung-nam Cha, Yong-Wan Jin, Byong-Gwon Song
  • Patent number: 7142199
    Abstract: A matrix type flat-panel display device having multi data lines and a method for driving the matrix type flat-panel display device are provided. The matrix type flat-panel display device in which a plurality of data lines are assigned to each of a plurality of columns consisting of pixels and each data line is arranged to correspond one-to-one with pixels to which each scanning line is connected, makes it possible to increase the number of the scanning lines which can be driven at the same time, thereby extending dwell time by multiplying it by the number of the data lines assigned to each of a plurality of columns consisting of pixels.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: November 28, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-eun Jang, Jung-woo Kim, Soo-joung Lee
  • Patent number: 6919683
    Abstract: A high-brightness phosphor screen and a method for forming the same are provided. The high-brightness phosphor screen having a low or middle working voltage, unlike a method of improving luminescent properties by use of a new synthetic phosphor, can be formed by simple deposition of a phosphor mixture that contains a proper ratio of a blue or green light-emitting phosphor for color image display and a bluish green light-emitting ZnO:Zn phosphor with high luminescent efficiency at low voltages.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: July 19, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jae-eun Jang
  • Patent number: 6911782
    Abstract: A field emission display with a separated upper electrode structure is provided. The field emission display includes: a lower substrate; lower electrodes arranged as stripes on the lower substrate; a field emitter array including a plurality of emitters arranged at a predetermined interval on each of the lower electrodes; an upper substrate which faces the lower substrate; upper electrodes arranged as stripes on the upper substrate to intersect the lower electrodes; and a phosphor array including a plurality of phosphors arranged on the upper electrodes, each phosphor pair of different colors being aligned with a respective one of the emitters, wherein an upper electrode aligned with each emitter is comprised of first and second upper electrodes connected to a respective phosphor pair of different colors. Such an upper electrode arrangement can be achieved through simple processes. In addition, a cross-talk phenomenon is prevented with the upper electrode structure and image quality is enhanced.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: June 28, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-eun Jang, Jae-eun Jung
  • Patent number: 6778234
    Abstract: A liquid crystal display including a liquid crystal panel and a backlight. The liquid crystal panel has a front plate and a rear plate between which liquid crystal is interposed, wherein electrodes for driving the liquid crystal on a pixel-by-pixel basis, pixel electrodes corresponding to the common electrodes, and thin film transistors (TFTs) for driving the pixel electrodes are installed on the inner surface of each of the front and rear plates. The backlight has a front plate and a rear plate, wherein a plurality of R, G and B anode electrodes, on which fluorescent layers are formed, are formed in parallel on the front plate, cathode electrodes corresponding to the anode electrodes are formed on the rear plate, and light emitting units for colors according to the anode electrodes and the cathode electrodes are installed to provide light of each of R, G and B colors to each pixel of the liquid crystal panel.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: August 17, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kwan-sun Park, Jae-eun Jang
  • Publication number: 20040032201
    Abstract: A field emission display with a separated upper electrode structure is provided. The field emission display includes: a lower substrate; lower electrodes arranged as stripes on the lower substrate; a field emitter array including a plurality of emitters arranged at a predetermined interval on each of the lower electrodes; an upper substrate which faces the lower substrate; upper electrodes arranged as stripes on the upper substrate to intersect the lower electrodes; and a phosphor array including a plurality of phosphors arranged on the upper electrodes, each phosphor pair of different colors being aligned with a respective one of the emitters, wherein an upper electrode aligned with each emitter is comprised of first and second upper electrodes connected to a respective phosphor pair of different colors. Such an upper electrode arrangement can be achieved through simple processes. In addition, a cross-talk phenomenon is prevented with the upper electrode structure and image quality is enhanced.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 19, 2004
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jae-Eun Jang, Jae-Eun Jung
  • Patent number: 6641756
    Abstract: A method for preparing a zinc sulfide phosphor having effective emission at low voltages. In the method for synthesizing a green-light emitting zinc sulfide based phosphor, ZnS:Cu, Al, which is applicable to a device operated with a low voltage, novel raw materials are employed. CuI is used as an activator, wherein monovalent copper (Cu1+) is complexed with ammonia and the ammonia complex is incorporated so as to uniformly distribute the activator in the mixture of raw materials. AlF3 is used as a co-activator, and, ZnI2 and NaI are added as iodide series fluxes. Thus, the color display characteristics are improved with a relatively high color purity and luminance.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: November 4, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soo-joung Lee, Jae-eun Jang
  • Publication number: 20020043648
    Abstract: A method for preparing a zinc sulfide phosphor having effective emission at low voltages. In the method for synthesizing a green-light emitting zinc sulfide based phosphor, ZnS:Cu, Al, which is applicable to a device operated with a low voltage, novel raw materials are employed. Cul is used as an activator, wherein monovalent copper (Cu1+) is complexed with ammonia and the ammonia complex is incorporated so as to uniformly distribute the activator in the mixture of raw materials. AlF3 is used as a co-activator, and, Znl2 and Nal are added as iodide series fluxes. Thus, the color display characteristics are improved with a relatively high color purity and luminance.
    Type: Application
    Filed: May 10, 2001
    Publication date: April 18, 2002
    Inventors: Soo-joung Lee, Jae-eun Jang
  • Publication number: 20020033807
    Abstract: A matrix type flat-panel display device having multi data lines and a method for driving the matrix type flat-panel display device are provided. The matrix type flat-panel display device in which a plurality of data lines are assigned to each of a plurality of columns consisting of pixels and each data line is arranged to correspond one-to-one with pixels to which each scanning line is connected, makes it possible to increase the number of the scanning lines which can be driven at the same time, thereby extending dwell time by multiplying it by the number of the data lines assigned to each of a plurality of columns consisting of pixels.
    Type: Application
    Filed: June 11, 2001
    Publication date: March 21, 2002
    Inventors: Jae-Eun Jang, Jung-Woo Kim, Soo-Joung Lee
  • Publication number: 20010035922
    Abstract: A liquid crystal display including a liquid crystal panel and a backlight. The liquid crystal panel has a front plate and a rear plate between which liquid crystal sandwiches, wherein common electrodes for driving the liquid crystal on a pixel-by-pixel basis, pixel electrodes corresponding to the common electrodes, and thin film transistors (TFTs) for driving the pixel electrodes are installed on the inner surface of each of the front and rear plates. The backlight has a front plate and a rear plate, wherein a plurality of R, G and B anode electrodes on which fluorescent layers are formed are formed in parallel on the front plate, cathode electrodes corresponding to the anode electrodes are formed on the rear plate, and light emitting units for colors according to the anode electrodes and the cathode electrodes are installed to provide light of R, G and B colors to each pixel of the liquid crystal panel.
    Type: Application
    Filed: April 5, 2001
    Publication date: November 1, 2001
    Inventors: Kwan-sun Park, Jae-eun Jang