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).

  • Publication number: 20050258739
    Abstract: A field emission device and a field emission display (FED) using the same and a method of making the field emission device. The FED includes a glass substrate, a layer of a material formed on the glass substrate and having a concave portion, a cathode electrode formed on the material layer and also having a concave portion, electron emitters formed on the concave portion of the cathode electrode, a gate insulating layer formed on the cathode electrode and having a cavity communicating with the concave portion, and a gate electrode formed on the gate insulating layer and having a gate aperture aligned with the cavity.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 24, 2005
    Inventors: Young-Jun Park, Yong-Wan Jin, In-Taek Han
  • Patent number: 6944496
    Abstract: An apparatus for positioning and marking a location of an electromyography (EMG) electrode includes a housing having a back surface, an EMG sensor for receiving the EMG signal, an amplifying circuit for amplifying the EMG signal to generate an amplified EMG signal and an audio output terminal for outputting the amplified EMG signal as the audio EMG signal. The examinee may directly position and mark the location of the EMG electrode and may easily detect the fatigue rate of the muscle or the abnormal condition of the muscle by using the sound of the audio equipment.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: September 13, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyuk Jeong, Hyun Bin Kim, Ki Ho Kim, Ki Hong Kim, Hong Kee Kim, Hyun Myung, Sang Won Ghyme, Ki Suk Lee, Yong Wan Kim, Jin Sung Choi
  • Publication number: 20050194035
    Abstract: A fibril solar cell includes: a fiber-shaped inner core having a porous fiber composed of first carbon nanotubes and a cathode material, in which pores of the porous fiber are filled with second carbon nanotubes, titanium dioxide, a photosensitive dye, and an electron transfer electrolyte; a photoconductive layer formed on a surface of the fiber-shaped inner core and composed of at least one photoconductive polymer; a transparent electrode layer formed on a surface of the photoconductive layer; and a transparent protective layer formed on a surface of the transparent electrode layer and composed of at least one transparent polymer. The fibril solar cell can be mass-produced inexpensively using a polymer. Also, the fibril solar cell has a high efficiency and can be converted into various shapes. The fibril solar cell can be attached to clothing, and be used as a portable power source for mobile electronics.
    Type: Application
    Filed: January 27, 2005
    Publication date: September 8, 2005
    Inventors: Yong-Wan Jin, Jong-Min Kim
  • Publication number: 20050166960
    Abstract: A particulate structure containing a carbon nanotube thus exhibiting improved electron-transferring property, a semiconductor electrode for a photoelectrochemical cell containing a carbon nanotube thus exhibiting improved electron-transferring property, an electrolytic solution for a photoelectrochemical cell containing a carbon nanotube thus exhibiting improved oxidation-reduction property, a reduction electrode for a photoelectrochemical cell containing a carbon nanotube thus exhibiting improved reduction property; and a photoelectrochemical cell applying at least one aspect above.
    Type: Application
    Filed: February 2, 2005
    Publication date: August 4, 2005
    Inventors: Yong-Wan Jin, Jong-Min Kim
  • Publication number: 20050152155
    Abstract: A field emission backlight unit for a liquid crystal display (LCD) includes: a lower substrate; first electrodes and second electrodes alternately formed in parallel lines on the lower substrate; emitters disposed on at least the first electrodes; an upper substrate spaced apart from the lower substrate by a predetermined distance such that the upper and lower substrates face each other; a third electrode formed on a bottom surface of the upper substrate; and a fluorescent layer formed on the third electrode. Since the backlight unit has a triode-type field emission structure, field emission is very stable. Since the first electrodes and the second electrodes are formed in the same plane, brightness uniformity is improved and manufacturing processes are simplified.
    Type: Application
    Filed: November 4, 2004
    Publication date: July 14, 2005
    Inventors: Ho-Suk Kang, In-Taek Han, Yong-Wan Jin, Min-Jong Bae, Young-Jun Park
  • Publication number: 20050141761
    Abstract: An apparatus and method for measuring a dimension of a pattern on a semiconductor device are provided. The method may include at least overlapping a reference pattern with an actual pattern that may be formed on a substrate, comparing the actual pattern with the reference pattern to determine whether the actual pattern may be aligned with the reference pattern, moving the actual pattern or the reference pattern in accordance with the results of the comparison to align the actual pattern with the reference pattern, and measuring a dimension of the actual pattern.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 30, 2005
    Inventors: Jin-Woo Lee, Sang-Kil Lee, Byung-Am Lee, Yong-Wan Kim, Hyo-Sang Cho, Byung-Seol Ahn
  • Publication number: 20050129858
    Abstract: A method of forming a carbon nanotube emitter includes: forming a carbon nanotube composite on a substrate with a predetermined shape, coating surface treating material in a liquid phase on the carbon nanotube composite and drying the surface treating material, and peeling the dried surface treating material off of the carbon nanotube composite.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 16, 2005
    Inventors: Yong-Wan Jin, Hyun-Jung Lee, Jong-Woon Moon, Deuk-Seok Chung, Jun-Hee Choi, Sung-Hee Cho
  • Patent number: 6906760
    Abstract: A liquid crystal display device includes a substrate, a thin film transistor disposed on the substrate, the thin film transistor including a gate electrode, a source electrode and a drain electrode, a gate line arranged in a first direction on the substrate, the gate line connected with the gate electrode of the thin film transistor, a gate insulation layer disposed on the substrate and covering the gate line and the gate electrode of the thin film transistor, an intrinsic semiconductor layer disposed on the gate insulation layer, an extrinsic semiconductor layer disposed on the intrinsic semiconductor layer, a data line arranged in a second direction substantially perpendicular to the first direction disposed on the extrinsic semiconductor layer, the data line connected to the source electrode of the thin film transistor, first and second dummy metal layers formed over the gate line and arranged on opposite sides of the data line, a passivation layer covering the data line, the source electrode, the drain el
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: June 14, 2005
    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: 6906772
    Abstract: A liquid crystal display device including a first and second substrates coupled to each other having a dummy region and a panel region, at least one first seal in the dummy region, a second seal along a peripheral portion of the panel region, wherein the second seal has a liquid crystal injection port and a liquid crystal layer between the first and second substrates, wherein a cell gap-determining thickness of the first seal is substantially same as a cell gap-determining thickness of the second seal.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: June 14, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Yong-Wan Kim
  • Patent number: 6882376
    Abstract: An array panel for a liquid crystal display device includes a substrate, a gate line and a gate electrode on the substrate, wherein the gate line is connected to the gate electrode, a gate insulating layer on the gate line and the gate electrode, an active layer on the gate insulating layer, an ohmic contact layer on the active layer, a data line, a source electrode, and a drain electrode on the ohmic contact layer, wherein the data line, the source electrode, and the drain electrode are formed of molybdenum, a passivation layer on the data line, the source and drain electrodes, and a pixel electrode on the passivation layer, wherein the ohmic contact layer has the same shape as the data line, the source, and drain electrodes, and the active layer has the same shape as the data line, and the source electrode, and the drain electrode except for a channel area between the source electrode and the drain electrode, and the channel area has a ā€œUā€ shape.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: April 19, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Yong Wan Kim, Dong-Jin Park
  • Patent number: 6864928
    Abstract: A method of fabricating a liquid crystal display device includes the steps of forming a gate electrode on a transparent substrate; forming a gate insulating film, an active layer and an ohmic contact layer on the transparent substrate to cover the gate electrode; forming a source electrode and a drain electrode on the ohmic contact layer and patterning the drain electrode to form an L-shaped portion and a plurality of protrusions; forming a protective layer on the source and drain electrodes such that side surfaces of the protective layer, the drain electrode, the ohmic contact layer and the active layer are exposed; and forming a pixel electrode on the protective layer to electrically contact the side surface of the drain electrode.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: March 8, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon Sung Yoo, Dong Yeung Kwak, Hu Sung Kim, Yong Wan Kim, Dug Jin Park, Yu Ho Jung, Woo Chae Lee
  • Patent number: 6862069
    Abstract: A liquid crystal display device includes dummy patterns formed between gate links and between data links. The gate links and data links are coated with a sealant to obtain the same height as a liquid crystal area at the opposite side thereof through the dummy patterns, providing a uniform cell gap.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 1, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Dong Yeung Kwak, Soon Sung Yoo, Yu Ho Jung, Hu Sung Kim, Dug Jin Park, Yong Wan Kim, Woo Chae Lee
  • Patent number: 6862051
    Abstract: A liquid crystal display, and a method of manufacturing thereof, includes providing a substrate; depositing sequentially a first metal layer and a first insulating layer on the substrate; patterning the first metal layer and the first insulating layer using a first mask to form a gate line and a first gate insulating layer; depositing sequentially a second gate insulating layer, a pure semiconductor layer, a doped semiconductor layer and a second metal layer over the whole substrate; patterning the second metal layer using a second mask to form a data line, source and drain electrodes, a capacitor electrode, the capacitor electrode overlapping a portion of the gae line; etching the doped semiconductor layer between the source and drain electrodes to form a channel region; depositing a third insulating layer over the whole substrate; patterning the third insulating layer using a third mask to form a passivation film, the passivation film having a smaller width than the data line and covering the source and dra
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: March 1, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Byung-Chul Ahn, Soon-Sung Yoo, Yong-Wan Kim
  • Patent number: 6842199
    Abstract: The present invention discloses an array substrate for an active-matrix LCD device and a method of fabricating the same. The array substrate reduces the number of masks used in the fabrication process so that reliability is enhanced and the cost is reduced over the conventional device and method.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: January 11, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Byung-chul Ahn, Soon-sung Yoo, Yong-wan Kim, Keuk-sang Kwon
  • Patent number: 6825595
    Abstract: Provided are a composite for paste including carbon nanotubes (CNTs), an electron emitting device using the same, and a manufacturing method thereof. The provided composite for paste includes 5 to 40 parts by weight of CNTs, 5 to 50 parts by weight of alkali metal silicate, and 1 to 20 parts by weight of a binder. The provided electron emitting device includes electron emitting tips, which are located on cathode electrodes in wells and formed of the composite for paste including 5 to 40 parts by weight of CNTs, 5 to 50 parts by weight of alkali metal silicate, and 1 to 20 parts by weight of a binder. The electron emitting device has excellent stability and durability and uniformly emits electrons from a large area, thereby improving the overall performance of an apparatus using the electron emitting device.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: November 30, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-wan Jin, Jae-eun Jung
  • Patent number: 6798477
    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: August 1, 2001
    Date of Patent: September 28, 2004
    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
  • Publication number: 20040183420
    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: Application
    Filed: December 10, 2003
    Publication date: September 23, 2004
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Yong-wan Jin, Jung-woo Kim, Jae-eun Jung, Young-Jun Park
  • Publication number: 20040179143
    Abstract: The present invention discloses an array substrate for an active-matrix LCD device and a method of fabricating the same. The array substrate reduces the number of masks typically used in the fabrication process so that reliability is enhanced and the cost is reduced over the conventional device and method. Electric shorts caused by hillocks can be prevented or reduced by incorporating short-preventing sections between the gate line and an overlapping pixel electrode.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 16, 2004
    Inventors: Soon-Sung Yoo, Yong-Wan Kim, Yu-Ho Jung, Woo-Chae Lee
  • Patent number: 6787270
    Abstract: A photo mask for patterning a lightning rod includes a shorting bar pattern and a plurality of pad patterns, an outer lightning rod pattern connected to the shorting bar pattern, an inner lightning rod pattern connected to the pad pattern, projections from each of the outer and inner lightning rod patterns, and a fine pattern in a “” shape connected between the projections, or a redundancy fine pattern connected between the pad patterns, or a plurality of the lightning rod patterns connected in series, thereby protecting the photo mask for patterning a lightning rod from damage from static electricity, and permitting patterning of an accurate lightning rod.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: September 7, 2004
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon Sung Yoo, Seong Su Lee, Dong Yeung Kwak, Yong Wan Kim
  • Publication number: 20040145686
    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: Application
    Filed: January 9, 2004
    Publication date: July 29, 2004
    Applicant: 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