Patents by Inventor Won-Ju Yi

Won-Ju Yi 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: 20090091236
    Abstract: A display panel includes a first substrate and a second substrate, the first and second substrates having inner surfaces facing each other, a plurality of electrodes disposed between the first substrate and the second substrate, a partitioning green sheet disposed between the first substrate and the second substrate, and a plurality of alignment structures on an inner surface of at least one of the first and second substrates, the alignment structures providing an alignment reference for aligning the partitioning green sheet with the inner surface, wherein at least one of the alignment structures contacts an edge of the partitioning green sheet.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 9, 2009
    Inventors: Yu-Jeong Cho, Sang-Hyuck Ahn, Kyoung-Doo Kang, Won-Ju Yi
  • Patent number: 7508135
    Abstract: A plasma display panel (PDP) that has a front substrate, a rear substrate arranged opposite to the front substrate, closed-type front barrier ribs arranged between the front substrate and the rear substrate and formed of a dielectric material, the front barrier ribs defining discharge cells together with the front and rear substrates, front and rear discharge electrodes arranged within the front barrier ribs and surrounding the discharge cells and spaced apart from each other, phosphor layers arranged within the discharge cells and a discharge gas injected into discharge cells.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: March 24, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Doo Kang, Won-Ju Yi, Jae-Ik Kwon
  • Publication number: 20090072702
    Abstract: A plasma display panel includes a first substrate and a second substrate. The first and the second substrates are flexible and face each other. A discharge electrode sheet is disposed between the first and second substrates to configure a plurality of discharge cells and includes a plurality of patterned discharge electrodes. A phosphor layer is formed in each of the discharge cells. An exhaust gas pathway is formed in the discharge electrode sheet and connects the discharge cells. The exhaust gas pathway that connects adjacent discharge cells is formed in the film shape discharge electrode sheet between the first and second substrates.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 19, 2009
    Inventors: Jae-Ik Kwon, Won-Ju Yi, Kyoung-Doo Kang, Seok-Gyun Woo
  • Patent number: 7504775
    Abstract: A Plasma Display Panel (PDP) has a high aperture ratio of a discharge cell, a high light transmittance, and a high luminous efficiency and a stable and efficient discharge occurs uniformly at a low driving voltage on inner sidewalls of the discharge cell and concentrates in the center of the discharge cell.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: March 17, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Su-Bin Song, Kyoung-Doo Kang, Jun-Yong Park, Won-Ju Yi
  • Publication number: 20090039782
    Abstract: A plasma display panel having a structure for reducing manufacturing costs and the failure rate of terminal portions of discharge electrodes. The PDP includes: a substrate and a barrier rib structure configuring a plurality of discharge cells. Discharge electrodes include discharge portions, terminal portions, and connection portions connecting the discharge portions with the terminal portions. A sealing member seals the discharge cells. A frit seals the substrate and the sealing member. At least one frit guide restricts the spreading of the frit. A phosphor layer is inside each of the discharge cells. A discharge gas is sealed in the discharge cells.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 12, 2009
    Inventors: Kyoung-Doo Kang, Won-Ju Yi, Ho-Young Ahn, Dong-Young Lee, Soo-Ho Park, Seok-Gyun Woo, Jae-Ik Kwon
  • Publication number: 20090039783
    Abstract: A display panel including a first substrate; a second substrate separated from the first substrate; a barrier rib structure disposed between the first and second substrates defining a plurality of discharge cells; a plurality of first electrodes extending in a first direction, the first electrodes in the barrier rib structure; a plurality of second electrodes separated from the first electrodes in a second direction from the first substrate towards the second substrate, the second electrodes in the barrier rib structure; a plurality of third electrodes extending in a third direction crossing the first direction, the third electrodes on a surface of the first substrate facing the discharge cells; and a plurality of phosphor layers on surfaces of the third electrodes facing the discharge cells.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Inventors: Tae-Seung Cho, Won-Ju Yi, Kyoung-Doo Kang, Young-Do Choi, Jae-Ik Kwon, Seok-Gyun Woo, Yong-Shik Hwang, Byoung-Min Chun, Jong-Woo Choi
  • Patent number: 7486022
    Abstract: A Plasma Display Panel (PDP) includes: a first substrate; a second substrate facing the first substrate; first barrier ribs, formed of a dielectric material and arranged between the first and second substrates, the first barrier ribs defining discharge cells with the first and second substrates; a phosphor layer arranged in the discharge cells; upper discharge electrodes arranged in the first barrier ribs and extending to surround the discharge cells; and lower discharge electrodes arranged in the first barrier ribs to be separated from the upper discharge electrodes, and extending to surround the discharge cells; wherein at least one of the upper and lower discharge electrodes includes discharge units that are respectively divided into plural pieces separated from each other to surround the discharge cells, and connection units electrically connecting the discharge units that respectively surround the neighboring discharge cells.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: February 3, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Doo Kang, Won-Ju Yi
  • Publication number: 20080303441
    Abstract: A plasma display panel including: a first substrate and a second substrate utilized to display images; a dielectric wall disposed between the first and second substrates and defining a plurality of discharge cells; a first discharge electrode disposed in the dielectric wall; a second discharge electrode disposed on the second substrate to cross the first discharge electrode; and a phosphor layer formed on the first substrate. Accordingly, plasma can efficiently arrive at the phosphor layer, thereby increasing discharge efficiency.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventors: Yong-Shik Hwang, Kyoung-Doo Kang, Won-Ju Yi, Jae-Ik Kwon
  • Publication number: 20080238827
    Abstract: A plasma display panel, and a method for manufacturing the same. The plasma display panel includes a first electrode sheet between a first substrate and a second substrate facing the first substrate; and a second electrode sheet between the second substrate and the first electrode sheet. The first electrode sheet includes a plurality of first inner lines, each of the first inner lines including a first discharge electrode and a first dielectric layer enclosing the first discharge electrode and composed of an anodized material of the first discharge electrode, the second electrode sheet includes a plurality of second inner lines, each of the second inner lines including a second discharge electrode and a second dielectric layer enclosing the second discharge electrode and composed of an anodized material of the second discharge electrode.
    Type: Application
    Filed: January 14, 2008
    Publication date: October 2, 2008
    Inventors: Jong-woo Choi, Won-ju Yi, Kyoung-doo Kang, Yong-shik Hwang, Jae-ik Kwon, Tae-seung Cho, Hyun-min Son, Byoung-min Chun, Young-do Choi
  • Publication number: 20080231187
    Abstract: A plasma display panel including: a first substrate; a second substrate separated from the first substrate; and two or more electrode sheets facing each other and between the first and second substrates, each of the two or more electrode sheets including opening patterns to form discharge spaces, wherein each of the two or more electrode sheets includes: a plurality of discharge electrodes extending in a direction and surrounding at least a part of the discharge spaces, and having corners with round curved portions contacting the discharge spaces or adjacent to the discharge spaces; and an insulating member integrally formed between the discharge electrodes for supporting the discharge electrodes and for insulating the discharge electrodes from each other, and including an oxide of a metal used to form the discharge electrodes.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Yong-Shik Hwang, Won-Ju Yi, Kyoung-Doo Kang, Tae-Seung Cho, Byoung-Min Chun, Jong-Woo Choi
  • Publication number: 20080231188
    Abstract: A plasma display panel includes a first electrode sheet and a second electrode sheet. Each sheet includes inside lines extending in one direction, each inside line having a discharge electrode forming a closed curve discharge unit and being separated from and electrically connected to an adjacent closed curve discharge unit by a first connection unit. The discharge electrode is of a material subject to an anodization such that anodization forms a dielectric layer having an anodization thickness to an outside of the closed curve discharge unit larger than an anodization thickness to an inside of the closed curve discharge unit, the inside of the closed curve discharge unit forming a sheet discharge hole.
    Type: Application
    Filed: January 14, 2008
    Publication date: September 25, 2008
    Inventors: Jong-woo Choi, Won-ju Yi, Yong-shik Hwang, Jae-ik Kwon, Tae-seung Cho, Kyoung-doo Kang, Byoung-min Chun, Seok-gyun Woo, Young-do Choi, Seong-gi Choo, Hyun-min Son
  • Publication number: 20080224611
    Abstract: An electrode sheet, a method of manufacturing the electrode sheet, and a plasma display panel having the electrode sheet. The electrode sheet includes: a plurality of electrodes arranged at substantially constant distances apart, each of the electrodes having a discharge space in its central region; an electrode line for connecting the electrodes along a first direction; and a dielectric enclosing the electrodes and the electrode line and connecting the electrodes along a second direction, wherein the electrodes and the electrode line are composed of magnesium (Mg), and the dielectric is composed of magnesium oxide (MgO).
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Inventors: Yong-shik Hwang, Won-ju Yi, Kyoung-doo Kang, Jong-woo Choi, Byoung-min Chun, Jae-ik Kwon
  • Publication number: 20080218441
    Abstract: A plasma display panel is provided in discharge spaces in which phosphor layers are disposed between first and second electrodes which are spaced apart from each other. The cross-sectional area of each discharge space in two regions where the first and second electrodes are respectively arranged has a different structure.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 11, 2008
    Inventors: Tae-Seung Cho, Won-Ju Yi, Kyoung-Doo Kang, Young-Do Choi, Jae-Ik Kwon, Seok-Gyun Woo, Yong-Shik Hwang, Byoung-Min Chun, Jong-Woo Choi
  • Publication number: 20080211739
    Abstract: A PDP with improved durability is provided. The PDP includes a first substrate and a second substrate facing the first substrate. An electrode sheet is between the first substrate and the second substrate. The electrode sheet includes barrier ribs, a plurality of discharge cells, discharge electrodes for generating discharge in the discharge cells, and one or more through-holes. A sealant is disposed in the one or more through-holes for sealing the first substrate and the second substrate.
    Type: Application
    Filed: January 9, 2008
    Publication date: September 4, 2008
    Inventors: Byoung-Min Chun, Kyoung-Doo Kang, Yong-Shik Hwang, Jae-Ik Kwon, Won-Ju Yi, Tae-Seung Cho, Young-Do Choi, Seok-Gyun Woo
  • Patent number: 7408301
    Abstract: A plasma display panel includes first and second substrates that face each other, a barrier rib structure that is disposed between the first and second substrates to divide a plurality of discharge cells, first and second electrodes that are formed to surround the discharge cells and that extend in a first direction. The first and second electrodes are buried in the barrier rib structure. Address electrodes are formed in a second direction crossing the first direction to correspond to the respective discharge cells, and phosphor layers are formed in the respective discharge cells, such that the discharge cells are divided into red, green, blue, and white discharge cells.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: August 5, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Ik Kwon, Won-Ju Yi, Kyoung-Doo Kang
  • Publication number: 20080157674
    Abstract: A plasma display panel (PDP) which can reduce the cost and time of manufacturing a plasma display device, and which can improve heat transfer efficiency of a plasma display device, comprises: a transparent front substrate; a rear substrate disposed parallel to the front substrate; an electromagnetic wave shielding layer fixed on the front substrate; a plurality of discharge cells defined by barrier ribs disposed between the front substrate and the rear substrate; a plurality of address electrodes extending over the discharge cells and disposed in a given direction; a rear dielectric layer covering the address electrodes; a plurality of fluorescent layers disposed in the discharge cells; a plurality of sustaining electrode pairs extending in a direction which crosses the given direction of the address electrodes; a front dielectric layer covering the sustaining electrode pairs; and a discharge gas filling the discharge cells.
    Type: Application
    Filed: February 26, 2008
    Publication date: July 3, 2008
    Inventors: Jae-Ik Kwon, Won-Ju Yi, Kyoung-Doo Kang
  • Publication number: 20080158105
    Abstract: A plasma display panel including: a first substrate; a plurality of first electrodes and a plurality of second electrodes, the first and second electrodes being disposed in parallel on the first substrate; a first dielectric surrounding the first electrodes and the second electrodes and connecting the first electrodes and the second electrodes; a passivation layer on the first dielectric and on the first electrodes and the second electrodes; a second substrate facing the first substrate; a plurality of third electrodes on the second substrate and crossing the first electrodes and the second electrodes; and a second dielectric on the third electrodes.
    Type: Application
    Filed: September 20, 2007
    Publication date: July 3, 2008
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Byoung-min Chun, Kwang-sik Lee, Won-ju Yi, Kyoung-doo Kang, Yong-shik Hwang, Tae-seung Cho, Seok-gyun Woo, Jong-woo Choi, Seong-gi Choo, Young-do Choi, Jae-ik Kwon, Hyun-min Son
  • Publication number: 20080122358
    Abstract: Example embodiments relate to a plasma display panel including a first flexible substrate and a second flexible substrate opposing each other, a flexible electrode sheet having a plurality of electrodes to define a plurality of discharge spaces, the flexible electrode sheet may be between the first flexible substrate and the second flexible substrate, an exhaustion hole engaged with the second flexible substrate and may connect the discharge spaces to an outside, and a supporting unit installed between the first flexible substrate and the second flexible substrate adjacent to the exhaustion hole may be mounted, so as to connect the discharge spaces to the exhaustion hole.
    Type: Application
    Filed: June 20, 2007
    Publication date: May 29, 2008
    Inventors: Jae-Ik Kwon, Won-Ju Yi, Kyoung-Doo Kang, Seok-Gyun Woo
  • Publication number: 20080116799
    Abstract: A plasma display panel includes a pair of substrates having a first substrate where an image is displayed and a second substrate. A barrier rib structure separates the substrates and has discharge cells within the barrier rib structure. Discharge electrode pairs are in the barrier rib structure, at least one of the discharge electrode pairs surrounding a discharge cell. A ferroelectric layer is on surfaces of the barrier rib structure forming the discharge cells. A phosphor layer is in each of the discharge cells.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 22, 2008
    Inventors: Tae-Seung Cho, Won-Ju Yi, Kyoung-Doo Kang, Young-Do Choi, Jae-Ik Kwon, Yong-Shik Hwang, Byoung-Min Chun, Seok-Gyun Woo, Hyea-Jin Park
  • Publication number: 20080111486
    Abstract: A plasma display panel includes a front substrate and a rear substrate facing each other, two or more electrode sheets having apertures or openings arranged in a uniform pattern for forming discharge spaces between the front substrate and the rear substrate, and including discharge electrodes surrounding at least a part of each of the discharge spaces and extending in one direction. Phosphor layers are located on the front substrate or the rear substrate to correspond to the discharge spaces. and a discharge gas filled in the discharge spaces, wherein projection portions are formed on side surfaces of the discharge electrodes and project into the discharge spaces.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 15, 2008
    Inventors: Byoung-Min Chun, Won-Ju Yi, Kyoung-Doo Kang, Yong-Shik Hwang, Tae-Seung Cho, Jong-Woo Choi, Seok-Gyun Woo, Jae-Ik Kwon, Young-Do Choi