Patents by Inventor Yong Wan

Yong Wan 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: 7242022
    Abstract: An array substrate of a liquid crystal display device includes a substrate; an elongated gate line having a gate electrode on said substrate, said gate line extending in a first direction; a gate extension line on said substrate and that connects to said gate line, said gate extension line extending substantially perpendicularly to said gate line; a first insulating layer over said substrate, said gate line, and said gate extension line; a storage capacitor comprising a portion of said gate line, a conductive capacitor electrode that overlaps a portion of said gate line, an ohmic contact layer and a dielectric layer that includes said first insulating layer and a semiconductor layer; a passivation layer on said capacitor electrode; and a pixel electrode on said passivation layer, said pixel electrode contacting said capacitor electrode through a hole in said passivation layer.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: July 10, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Byung-chul Ahn, Byoung-ho Lim, Soon-sung Yoo, Yong-wan Kim
  • 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
  • Patent number: 7205543
    Abstract: An auto focusing method and apparatus for determining a focusing evaluation value, comparing the focusing evaluation value with an acceptance level of a preset focusing evaluation value, and iteratively focusing, while widening the depth of focus, when the focusing evaluation value is lower than the acceptance level.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: April 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Wan Kim, Sang-Kil Lee, Byung-Am Lee, Jin-Woo Lee, Hyo-Sang Cho
  • Publication number: 20070081265
    Abstract: A color wheel unit and a fabrication method thereof are disclosed. The color wheel unit comprises a color wheel positioned on a light path and having RGB segments, which are rotated to be inserted in order into the light path, and a driving apparatus for providing rotational force to the color wheel, where the color wheel is secured to the driving apparatus by laser welding. This allows a simplified process for joining the color wheel to the driving apparatus.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 12, 2007
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji-Hyung Jung, Nak-Yun Sung, Ju-Dong Oh, Kye-Woong Cho, Yong-Wan Cho
  • Publication number: 20070080625
    Abstract: A display device includes: a first substrate and a second substrate, a plurality of first electrodes, a light emitting layer, and a plurality of second electrodes. The first and second substrates are spaced apart to face each other, and the plurality of first electrodes are formed on an inner surface of the first substrate. The light emitting layer is arranged on the plurality of first electrodes and includes phosphor bodies and light emitting sources mixed therein. The plurality of second electrodes are arranged on an inner surface of the second substrate.
    Type: Application
    Filed: June 9, 2006
    Publication date: April 12, 2007
    Inventors: Shang-Hyeun Park, Jeong-Hee Lee, Yong-Wan Jin, In-Taek Han, Jeong-Na Heo, Tae-Won Jeong
  • Publication number: 20070082426
    Abstract: A Carbon NanoTube (CNT) structure includes a substrate, a CNT support layer, and a plurality of CNTs. The CNT support layer is stacked on the substrate and has pores therein. One end of each of the CNTs is attached to portions of the substrate exposed through the pores and each of the CNTs has its lateral sides supported by the CNT support layer. A method of vertically aligning CNTs includes: forming a first conductive substrate; stacking a CNT support layer having pores on the first conductive substrate; and attaching one end of the each of the CNTs to portions of the first conductive substrate exposed through the pores.
    Type: Application
    Filed: June 19, 2006
    Publication date: April 12, 2007
    Inventors: Yong-Wan Jin, Jong-Min Kim, Hee-Tae Jung, Tae-Won Jeong, Young-Koan Ko
  • 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: 7173684
    Abstract: A liquid crystal display device, and a fabricating method thereof, that is capable of providing uniform liquid cell gaps. A main seal defines a liquid crystal injection area. A first step coverage-compensating layer is provided between a substrate on which the main seal has been coated and the main seal. A plurality of dummy seals is arranged external to the main seal. A second step coverage-compensating layer having the same thickness as the first step coverage-compensating layer is provided between the substrate on which the dummy seals are arranged and the dummy seals. Accordingly, a main seal and dummy seals having the same thickness produce uniform liquid crystal cell gaps. The liquid crystal display device is beneficially made by a fabrication process employing four or five masks.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 6, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon Sung Yoo, Dong Yeung Kwak, Yu Ho Jung, Yong Wan Kim, Woo Chae Lee, Dug Jin Park, Hoo Sung Kim
  • Publication number: 20060284543
    Abstract: A ferroelectric cold cathode and a ferroelectric field emission device including the ferroelectric cold cathode includes: a substrate; a lower electrode layer arranged on a upper surface of the substrate, the lower electrode layer including a conductive material; a ferroelectric layer arranged on a upper surface of the lower electrode, the ferroelectric layer including a ferroelectric material; and an upper electrode including an ultrafine linear material net arranged on the ferroelectric layer and exposing a portion of the upper surface of the ferroelectric layer through a plurality of net holes of conductive ultrafine linear material particles distributed in a net structure.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 21, 2006
    Inventors: Deuk-Seok Chung, Yong-Wan Jin, In-Taek Han, Jun-Hee Choi
  • Publication number: 20060257565
    Abstract: A method of making a catalyst layer for synthesis of carbon nanotubes is provided. The method includes: coating a thin film formed of copolymer on a substrate; heat treating the thin film coated on the substrate to form a regular structure; removing a part of block copolymers that form the copolymer; depositing a catalyst base on the thin film from which a part of the block copolymers are removed; and removing the thin film to form a catalyst layer formed of a plurality of metal catalyst dots.
    Type: Application
    Filed: February 17, 2006
    Publication date: November 16, 2006
    Inventors: Yong-Wan Jin, In-Taek Han, Deuk-Seok Chung
  • Publication number: 20060218853
    Abstract: A fuel additive composition comprising hydrogen peroxide, an amine-based stabilizer, borax, and sodium hydroxide is disclosed. The composition is added to such fuel as coal, oil, and gas to facilitate combustion and remove impurities in a combustion apparatus, thereby improving thermal efficiency, and it reduces discharge of noxious gases such as SOx, NOx, and CO.
    Type: Application
    Filed: May 10, 2004
    Publication date: October 5, 2006
    Inventors: Mi-Hye Oh, Hwan-Woo Ryu, Yong-Wan Kim
  • Publication number: 20060192475
    Abstract: A carbon nanotube emitter and its fabrication method, a Field Emission Device (FED) using the carbon nanotube emitter and its fabrication method include a carbon nanotube emitter having a plurality of first carbon nanotubes arranged on a substrate and in parallel with the substrate, and a plurality of the second carbon nanotubes arranged on a surface of the first carbon nanotubes.
    Type: Application
    Filed: October 6, 2005
    Publication date: August 31, 2006
    Inventors: Hang-Woo Lee, Yong-Wan Jin, In-Taek Han, Ha-Jin Kim, Min-Jong Bae
  • Patent number: 7078007
    Abstract: A carbon nanotube manufacturing method is provided. In the carbon nanotube manufacturing method, carbon nanoparticles are dispersed in a strong acid solution and heated at a predetermined temperature under reflux to form carbon nanotubes from the carbon nanoparticles. The carbon nanotubes can be simply produced on a mass-scale at low costs by using the strong acid solution.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: July 18, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-gi Yu, Whi-kun Yi, Jeong-hee Lee, Yong-wan Jin, Tae-won Jeong
  • Publication number: 20060131172
    Abstract: A method of vertically aligning carbon nanotubes, whereby carbon nanotubes are grown on a substrate on which a catalyst metallic layer is formed, the grown carbon nanotubes are separated from the substrate in a bundle shape, the separated carbon nanotube bundles is put in an electrolyte having a charger, the carbon nanotube bundles are mixed with the charger to charge the carbon nanotube bundles, and the charged carbon nanotube bundles are vertically attached onto a surface of an electrode, using electrophoresis.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 22, 2006
    Inventors: Ha-Jin Kim, Yong-Wan Jin, In-Taek Han, Hang-Woo Lee
  • Patent number: 7049739
    Abstract: A field emission device using carbon nanotubes (CNTs) is provided. The field emission device includes a cathode on which a plurality of CNT emitters are arranged, a gate insulating layer having a through hole through which electrons emitted from the CNT emitters pass, and a gate electrode which corresponds to the through hole of the gate insulating layer and has an enlongated gate hole that forms an electric field having different strengths in a first direction and in a second direction orthogonal to the first direction.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: May 23, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-wan Jin, Jung-woo Kim, Jae-eun Jung, Young-jun Park
  • Patent number: 7027120
    Abstract: A liquid crystal display device and a method of fabricating the same are disclosed in the present invention. More specifically, the method includes the steps forming a gate line on the first substrate sequentially forming a first insulating layer, an amorphous silicon layer, and a metal layer on the first substrate, patterning the metal layer to form a data line, forming a second insulating layer on the data line, patterning the second insulating layer and the amorphous silicon layer to form a passivation layer and an active layer, respectively, forming a pixel electrode at a pixel region defined by the gate and data lines, assembling the first substrate and the second substrate having a black matrix thereon, wherein the black matrix vertically overlaps at least one boundary line defined by different exposures during step-and-repeat exposure processes; and forming a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: April 11, 2006
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Soon-Sung Yoo, Dong-Yeung Kwak, Hu-Sung Kim, Yu-Ho Jung, Yong-Wan Kim, Duk-Jin Park, Woo-Chae Lee
  • Patent number: 7023501
    Abstract: A liquid crystal display device and a method of fabricating the same are disclosed. The device, as disclosed, reduces the number of masks required to fabricate. Thus, cost is reduced and yield is increased. The device includes a plurality of gate lines, a plurality of data lines crossing the gate lines such that active regions are defined near the crossover points, thin film transistors are formed near the active regions, and a plurality of pixel electrodes are formed within regions defined by the adjacent gate and data lines. Also, pixel electrodes overlap gate lines and the two electrodes function as a storage capacitor.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: April 4, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Byung Chul Ahn, Byung Ho Lim, Soon Sung Yoo, Yong Wan Kim, Young Hun Ha
  • Patent number: 6992364
    Abstract: A TFT array substrate has a PAI pattern, and the PAI pattern has an over-etched portion of the pure amorphous silicon layer. This over-etched portion prevents a short between the pixel electrode and the pure amorphous silicon layer (i.e., the active layer).
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: January 31, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon-Sung Yoo, Dong-Yeung Kwak, Hu-Sung Kim, Yu-Ho Jung, Yong-Wan Kim, Duk-Jin Park, Woo-Chae Lee
  • Patent number: 6976897
    Abstract: A field emission array adopting carbon nanotubes as an electron emitter source, wherein the array includes a rear substrate assembly including cathodes formed as stripes over a rear substrate and carbon nanotubes; a front substrate assembly including anodes formed as stripes over a front substrate with phosphors being deposited on the anodes, a plurality of openings separated by a distance corresponding to the distance between the anodes in a nonconductive plate, and gates formed as stripes perpendicular to the stripes of anodes on the nonconductive plate with a plurality of emitter openings corresponding to the plurality of openings. The nonconductive plate is supported and separated from the front substrate using spacers. The rear substrate assembly is combined with the front substrate assembly such that the carbon nanotubes on the cathodes project through the emitter openings.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: December 20, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Won-bong Choi, Min-jae Yun, Yong-wan Jin
  • Patent number: 6972825
    Abstract: A method of removing pattern defects in a liquid crystal display more particularly, a liquid crystal display having an IOP structure where a transparent conductive layer is formed on a passivation layer, removes pattern defects in active layers or data wires of an LCD simultaneously and quickly, without causing any damage on other parts of the LCD, by exposing pattern defects in the air, then carrying out an etching process in use of pixel electrodes and an etch-stop layer as an etch mask.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: December 6, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Yong Wan Kim