Patents by Inventor Yong-wan Kim

Yong-wan Kim 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: 7262827
    Abstract: A liquid crystal display has a pad structure. The pad structure includes at least one pad formed on a substrate, an insulating film formed on the pad, and at least one conductive layer connected to the pad through contact holes defined through the insulating film. The insulating film covers side surfaces of the pad and a portion of the substrate adjacent to the side surfaces of the pad.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: August 28, 2007
    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
  • Publication number: 20070190438
    Abstract: In an embodiment, a method of controlling a light intensity includes measuring a critical dimension distribution of a pattern on a substrate. The critical dimension distribution is formed using a first illumination having a first intensity distribution, which is irradiated onto the substrate through a photo mask. A second intensity distribution of the first illumination by regions of the photo mask, which is used for forming a pattern having uniform dimensions on the substrate, is then obtained based on a relation between the first intensity distribution and the critical dimension distribution. The first illumination having the first intensity distribution is converted into a second illumination having the second intensity distribution as by interposing an array of light controlling elements (e.g., LCD pixels, or motorized polarizing elements) within the light path.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 16, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kye-Weon KIM, Yu-Sin YANG, Chung-Sam JUN, Yong-Wan KIM
  • 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
  • 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
  • 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: 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
  • 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: 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
  • 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: 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
  • 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: 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: 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: 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