With Dielectric Member Patents (Class 313/586)
  • Patent number: 7423378
    Abstract: A plasma display panel is disclosed, which prevents luminance from being reduced, prevents error discharge from occurring due to crosstalk, and improves exhaust ability. Auxiliary barriers or projections are formed in a boundary portion between respective cells in a stripe type barrier structure. Alternatively, a predetermined groove is formed in a predetermined position of a dielectric layer in a lattice shaped barrier structure. In addition to these barriers, second barriers are formed at a greater width or at constant intervals. Thus, exhaust ability can be improved, and error discharge due to crosstalk can be prevented from occurring. Also, luminance in corner portions of the cell can be improved, and contrast can be improved even if a black matrix is not formed.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: September 9, 2008
    Assignee: LG Electronics Inc.
    Inventors: Hun Gun Park, Seok Cheon Ha
  • Patent number: 7422503
    Abstract: Disclosed here is a plasma display panel having stable addressing characteristics and a method of manufacturing a plasma display panel having such a reliable structure. According to the plasma display panel and the manufacturing method, on back plate (2) that confronts front plate (1) having scan electrodes (6) and sustain electrodes (7) thereon, data electrodes (10), first dielectric layer (17) disposed to cover the data electrodes, priming electrodes (15), and second dielectric layer (18) disposed to cover the priming electrodes are formed in the order named; at the same time, the softening temperatures of the materials forming the components disposed on the back plate are determined so as to become lower in the order named. The temperature setting protects first dielectric layer (17) from deterioration or deformation, improving dielectric voltage between data electrodes (10) and priming electrodes (15).
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: September 9, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Morio Fujitani, Keisuke Sumida, Tatsuo Mifune, Shinichiro Ishino, Hiroyuki Tachibana
  • Publication number: 20080211409
    Abstract: A plasma display panel is disclosed. The plasma display panel includes a first panel including address electrodes, a first dielectric layer, and a phosphor layer formed on a first substrate, and a second panel bonded with the first panel by interposing barrier ribs therebetween, the second panel including a plurality of transparent electrodes and bus electrodes, a second dielectric layer, a first protective layer containing magnesium oxide doped with a crystalline oxide, and a second protective layer containing crystalline magnesium oxide.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 4, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Deok Hai PARK, Min Soo PARK, Young Sung KIM, Bo Hyun KIM
  • Publication number: 20080211408
    Abstract: An object of the present invention is to provide a plasma display panel and a manufacturing method thereof that can prevent a dielectric layer and a protective layer from being deteriorated and give excellent image display performance, by performing a sealing process effectively. The object can be realized by a plasma display panel including a front panel 10 and a back panel 11 arranged in opposing to each other at a certain gap, the front panel and the back panel being sealed by a sealing layer 17 that is provided on entire peripheral portions of main surfaces of the front panel and the back panel, and the sealing layer is composed of at least one material selected from the group consisting of an organic resin material, an inorganic material, and a metal material (more specifically, a silica material as a main component and an epoxy resin material).
    Type: Application
    Filed: August 11, 2005
    Publication date: September 4, 2008
    Inventors: Hiroyuki Yamakita, Masatoshi Kitagawa, Mikihiko Nishitani, Noriyasu Echigo, Tomohiro Okumura, Hiroaki Ishio, Hikaru Nishitani
  • Patent number: 7420330
    Abstract: Embodiments of the present invention offer an improved PDP that offers a lowered discharge initiation voltage as well as improved efficiency of discharge. The PDP may satisfy the equation 180?(A+B)+P×0.1?240 in which A is a distance between opposite recessed portion of a pair of a first electrode and a second electrode; it is a distance between opposite projection portions of the pair of the first electrode and the second electrode, and P is a gas pressure of a discharge gas contained in the discharge space. In another embodiment a gas pressure of a gas trapped in a discharge space (e.g., “cell” or “discharge cell”) may be over 450 Torr. Additionally, each opposing end of the first electrode and the second electrode may include a recessed portion and a projection portion such that a gap interposed between the opposing end portions varies in width.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: September 2, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-Gyun Woo, Se-Jong Kim
  • Patent number: 7420328
    Abstract: A plasma display panel capable of preventing faulty discharge and non-uniform discharge by applying a uniform address voltage to all subpixels. This is done by neutralizing the negative surface potential of a zinc silicate green fluorescent material using YBO3:Tb as a positive surface potential material on the partition walls between the electrodes. Also, the thickness of this YBO3:Tb material and a lateral spacing between a scan electrode and the positive surface potential material are carefully selected to arrive at a design resulting in no faulty pixels. Grooves can also be formed in the tops of the partition walls so that the positive surface potential material filled therein does not mix with the neighboring flourescent material.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: September 2, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Kyoung Kang
  • Publication number: 20080203915
    Abstract: A material for preparing a protective layer for a PDP, which reduces discharge delay time, improves temperature dependency, and has enhanced ion strength; a method of preparing the same; a protective layer formed of the material; and a PDP including the protective layer. More particularly, a material for a protective layer that includes monocrystalline magnesium oxide doped with a rare earth element at an amount of 2.0×10?5?1.0×10?2 parts by weight per 1 part by weight of magnesium oxide (MgO), a method of preparing the monocrystalline magnesium oxide by crystallizing it at about 2,800° C., a protective layer formed of the same, and PDP including the protective layer.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 28, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Min-Suk Lee, Yury Matulevich, Suk-ki Kim, Jong-Seo Choi, Young-Su Kim, Hee-Young Chu, Deok-Hyun Kim, Soon-Sung Suh
  • Patent number: 7414597
    Abstract: A PDP driving circuit for a stable operation of a ramp pulse. A capacitor having a temperature characteristic opposite to a temperature characteristic of a part coupled to a switch that operates as a constant current source for generation of a ramp pulse is arranged in the driving circuit for generating a ramp pulse. The ramp pulse linearly increases or decreases a panel voltage of the PDP with respect to time. Parts having opposite temperature characteristics are coupled in parallel to control variation of a gradient of the ramp pulse so that values of the parts may not be varied depending on the temperature changes. Thus, stable operation of the ramp pulse is obtained.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: August 19, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hak-Ki Choi, Sang-Chul Kim, Seung-Pil Mun, Kwang-Ho Jin, Sun-Kyung Ahn
  • Patent number: 7411348
    Abstract: Disclosed is a plasma display panel. A plasma display panel according to an embodiment of the present invention comprises a front substrate and a rear substrate attached to each other with a predetermined distance therebetween, a plurality of barrier ribs disposed between the front and rear substrates creating a plurality of discharge cells, and a plurality of scan electrodes and a plurality of sustain electrodes which are alternately arranged in each discharge cell. The plasma display panel has the enhanced discharge efficiency and emission efficiency. Further, the plasma display panel can be manufacture at low cost.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: August 12, 2008
    Assignee: LG Electronics Inc.
    Inventor: Min Soo Park
  • Publication number: 20080185962
    Abstract: Lead-free acid-resistant glass composition includes 5-25% of SiO2, 4-30% of B2O3, 7-30% of ZnO, 15-70% of Bi2O3, 0-15% of Al2O3, 5-20% of BaO in weight percentage, and being substantially lead-free.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Applicant: NORITAKE CO., LIMITED
    Inventors: Yuko Kato, Makiko Imai
  • Patent number: 7407902
    Abstract: A Bismuth glass composition including 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3 and 4 wt % or less of Al2O3, and further including 5 wt % or less of an oxide of Group A, 12 wt % or less of an oxide of Group B and 0.1 to 10 wt % of an oxide of Group C, wherein the oxide of Group A is at least one selected from the group consisting of Li2O, Na2O and K2O, the oxide of Group B is at least one selected from the group consisting of MgO, CaO, SrO and BaO, and the oxide of Group C is at least one selected from the group consisting of Sc2O3, Y2O3, La2O3, CeO2, Pr2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 5, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Hasegawa, Hiroshi Onishi, Mikie Kanai, Tetsuya Kamimoto
  • 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
  • Patent number: 7408299
    Abstract: A plasma display panel includes a red phosphor layer, a green phosphor layer, and a blue phosphor layer. The thickness of the red phosphor layer comprises Y(V,P)O4:Eu and (Y,Gd)BO3:Eu coated on a barrier rib and is satisfied by the following condition: when Dr is (S?2L)/S, Dr?0.64, S being a distance between barrier ribs at half the height of the barrier rib; and L being a side thickness at half the height of the barrier rib of the phosphor layer coated on the barrier rib.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 5, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seo-Young Choi, Hye-Kyong Kwon
  • Patent number: 7408300
    Abstract: An alternating current driven type plasma display device which does not increase a driving voltage (discharge voltage) and does not increase a time delay of discharge is provided. The alternating current driven type plasma display device contains a first panel having a plurality of first electrodes formed on a first substrate and a dielectric layer formed on the first substrate and the first electrodes and a second panel, in which the first panel and the second panel are bonded to each other in circumferential portions thereof, the dielectric layer is constituted by SiOX, and bonding density of H2O contained in SiOX is 3.0×1020 Bonds/cm3 or more.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: August 5, 2008
    Assignee: Sony Corporation
    Inventor: Arata Kobayashi
  • Patent number: 7408302
    Abstract: A plasma display panel is disclosed. The plasma display panel includes first barrier ribs partitioning a plurality of sub pixels, and second barrier ribs partitioning neighboring unit pixels wherein the plurality of sub pixels form one unit pixel. A width of each of the second barrier ribs partitioning the unit pixels is wider than that of each of the first barrier ribs partitioning the plurality of sub pixels. A sub pixel located at the center of the plurality of sub pixels is a blue sub pixel.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: August 5, 2008
    Assignee: LG Electronics Inc.
    Inventor: Woong-Kee Min
  • Patent number: 7405518
    Abstract: MgO pellets are provided for use as a protective layer for a plasma display panel providing improved physical properties. The plasma display panel includes first and second substrates facing each other. A plurality of first and second electrodes are internally formed on the first and the second substrates. Dielectric layers cover the first and the second electrodes and a MgO protective layer covers one of the dielectric layer. The MgO protective layer has 400 columnar crystals per ?m2.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 29, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Ki-Dong Kim
  • Publication number: 20080164815
    Abstract: A plasma display panel (PDP) is made of front panel (2) and a rear panel. The front panel includes display electrodes (6), dielectric layer (8), and protective layer (8) that are formed on glass substrate (3). The rear panel includes electrodes, barrier ribs, and phosphor layers that are formed on a substrate. The front panel and the rear panel are faced with each other, and the peripheries thereof are sealed to form a discharge space therebetween. Each of display electrodes (6) contains at least silver. Dielectric layer (8) is made of first dielectric layer (81) that contains bismuth oxide and calcium oxide and covers display electrodes (6), and second dielectric layer (82) that contains bismuth oxide and barium oxide and covers first dielectric layer (81).
    Type: Application
    Filed: September 27, 2006
    Publication date: July 10, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL., LTD.
    Inventors: Akira Kawase, Kazuhiro Morioka, Kazuhiro Yokota, Yui Saitou, Tatsuo Mifune
  • Publication number: 20080157671
    Abstract: Row electrode pairs and column electrodes are provided between the front glass substrate and the back glass substrate. Magnesium oxide single-crystal particles, which are doped with aluminum and have characteristics of causing cathode luminescence having a peak within a wavelength range of 200 nm to 300 nm upon excitation by application of electron beams, are disposed in a position facing the discharge cells, and form part of a protective layer for a dielectric layer overlying the row electrodes and/or phosphor layers.
    Type: Application
    Filed: October 16, 2007
    Publication date: July 3, 2008
    Inventors: Taro Naoi, Hai Lin
  • Publication number: 20080157670
    Abstract: A plasma display panel and a method of manufacturing the plasma display panel are disclosed. The plasma display panel includes a scan electrode, a sustain electrode, and a barrier rib formed on a glass, and an upper dielectric layer having a differential thickness formed on the glass. The upper dielectric layer covers the scan electrode and the sustain electrode. As the upper dielectric layer is far away from a discharge region portion between the scan electrode and sustain electrode, the width of the upper dielectric layer gradually increases. A distance between the scan electrode and the sustain electrode positioned within a discharge cell partitioned by the barrier rib is more than a height of the barrier rib.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Applicant: LG ELECTRONICS INC.
    Inventors: Dongki PAIK, Kwang Yeol Choi, Jongrae Lim, Wootae Kim, Sung Chun Choi
  • Publication number: 20080157672
    Abstract: Disclosed is a PDP and a manufacturing method therefor having improved display performance even if the PDP is of a fine-cell structure. A protective layer of the PDP is composed of an MgO film layer and an MgO particle layer that is made of MgO particles. The MgO particles are formed by burning an MgO precursor and satisfy that a/b?1, where a denotes a spectrum integral value in a wavelength region of a CL spectrum from 200 nm to 300 nm, exclusive of 300 nm, and b denotes a spectrum integral value in a wavelength region of the CL spectrum from 300 nm to 550 nm, exclusive of 550 nm. With provision of the MgO particle layer, the discharge characteristics of the protective layer improve (shorter discharge delay and less temperature dependence of the discharge delay). Consequently, the PDP is ensured to exhibit excellent display performance.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Inventors: Takuji Tsujita, Yusuke Fukui, Masaharu Terauchi, Mikihiko Nishitani, Michiko Okafuji, Shinichiro Ishino, Kaname Mizokami
  • Publication number: 20080150428
    Abstract: A plasma display panel (PDP) is made of front panel (2) and a rear panel. The front panel includes display electrodes (6), dielectric layer (8), and protective layer (8) that are formed on front glass substrate (3). The rear panel includes electrodes, barrier ribs, and phosphor layers that are formed on a rear glass substrate. The front panel and the rear panel are faced with each other, and the peripheries thereof are sealed to form a discharge space therebetween. Display electrodes (6) includes metal electrodes (4b, 5b) each containing at least silver and binding glass. The binding glass of black electrodes (41b, 51b) and white electrodes (42b, 52b) constituting metal bus electrodes (4b, 5b) contains at least bismuth oxide and has a softening point exceeding 550° C.
    Type: Application
    Filed: September 28, 2006
    Publication date: June 26, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Eiichi Uriu, Hatsumi Komaki, Shingo Takagi, Akira Kawase, Tatsuo Mifune
  • Patent number: 7391155
    Abstract: A plasma display panel having barrier ribs designed to prevent phosphor material from forming on a top surface thereof. The barrier ribs include a plurality of parallel first barrier rib members and a plurality of parallel second barrier rib members formed substantially perpendicularly intersecting the first barrier rib members. The first barrier rib members have a cross-sectional apex width and the second barrier rib members have a cross-sectional apex. The apex width of the first barrier rib members is less than the apex width of the second barrier rib members, so that when the phosphor material is deposited thereon, the phosphor accumulates on the sidewalls of the barrier ribs and between the barrier ribs, and not on top of the barrier ribs, thus improving image quality.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: June 24, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byung-Soo Jeon
  • Patent number: 7391157
    Abstract: A plasma display device includes: a plasma display panel; a chassis base supporting the plasma display panel, the chassis base being parallel to the plasma display panel; a thermally conductive layer arranged between the plasma display panel and the chassis base, the thermally conductive layer being adjacent to the plasma display panel; and a thermally non-conductive layer arranged between the thermally conductive layer and the chassis base.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: June 24, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Won Bae, Myoung-Kon Kim, Tae-Kyoung Kang, Ki-Jung Kim
  • Patent number: 7391156
    Abstract: A plasma display panel includes a first substrate and a second substrate facing each other to provide a discharge space between the first substrate and the second substrate, a scan electrode and a sustain electrode both provided on the first substrate, a dielectric layer for covering the scan electrode and the sustain electrode, and a protective layer provided on the dielectric layer. The protective layer includes MgO, at least one element of Si, Ge, C and Sn, and at least one element of fourth, fifth, sixth and seventh group elements of a periodic table. This plasma display panel performs stable discharge characteristics, such as a driving voltage, thereby displaying an image stably.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: June 24, 2008
    Assignee: Matsushita Electrical Industrial Co., Ltd.
    Inventors: Kazuyuki Hasegawa, Kaname Mizokami, Yoshinao Oe, Masaki Aoki
  • Publication number: 20080143256
    Abstract: A plasma display panel is disclosed. The plasma display panel includes a front substrate, a rear substrate facing the front substrate, a barrier rib that is positioned between the front substrate and the rear substrate to partition a discharge cell, a first electrode and a second electrode that face each other to be spaced apart from each other at the discharge cell therebetween, and a dielectric layer that covers the first electrode and the second electrode. At least one of the first electrode and the second electrode includes a depression formed on a facing surface of the first electrode and the second electrode. The dielectric layer includes a groove formed between the first electrode and the second electrode.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 19, 2008
    Inventor: Byungjoon RHEE
  • Publication number: 20080143257
    Abstract: A plasma display panel (PDP) includes front and rear substrates spaced apart and facing each other, barrier ribs between the front and rear substrates to define a plurality of discharge cells, a plurality of electrodes between the front and rear substrates to generate a discharge, a light transmitting layer including a blue pigment, and at least one blue phosphor layer in the discharge cells, the phosphor layer including a phosphor material represented by Ba1-x-ySryMgpAlqOr:Eux, where 0.001?x?0.1, 0.021?y?0.3, p=1, q=10 or 14, and r=17 or 23.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 19, 2008
    Inventors: Young-Gil Yoo, Sang-Hyun Kim
  • Patent number: 7385352
    Abstract: A Plasma Display Panel (PDP) includes: a rear substrate; address electrodes arranged in predetermined intervals over the rear substrate; a rear dielectric layer arranged to cover the address electrodes; barrier ribs arranged to partition discharge spaces on the rear dielectric layer; phosphor layers arranged in the discharge spaces; a front substrate arranged over and facing the rear substrate; and sustain electrodes arranged orthogonal to the address electrodes under the front substrate.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: June 10, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sung-Hune Yoo
  • Publication number: 20080129201
    Abstract: A plasma display panel includes a front substrate providing an image display surface, a rear substrate facing the front substrate, barrier ribs arranged between the front and rear substrates to defining a plurality of discharge cells, a plurality of discharge electrodes extending across the discharge cells to generate a discharge, a front dielectric layer on the front substrate to bury the discharge electrodes, first phosphors coated within the discharge cells, second phosphors on upper surfaces of the barrier ribs and extending from the first phosphors, and a discharge gas filled into the discharge cells, wherein one or more of the front substrate, the front dielectric layer, and/or the barrier ribs is colored with a first color, and the first and second phosphors are colored with a second color.
    Type: Application
    Filed: November 6, 2007
    Publication date: June 5, 2008
    Inventor: Chong-Gi Hong
  • Publication number: 20080129200
    Abstract: A plasma display panel and a method of making thereof such that the plasma display panel includes a first substrate and a second substrate arranged opposite to each other; a plurality of address electrodes disposed on the first substrate; a dielectric layer disposed to cover the address electrodes disposed on the first substrate; a plurality of display electrodes disposed to cross the address electrodes on a second substrate; an inorganic oxide layer disposed to cover the display electrodes; an MgO protective layer disposed to cover the inorganic oxide layer; barrier ribs disposed between the first substrate and the second substrate to define a plurality of discharge cells; and phosphor layers disposed in the discharge cells.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 5, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Dong-Hyun Kang, Jong-Seo Choi, Yong-Seog Kim, Min-Su Co
  • Patent number: 7382095
    Abstract: A PDP includes a barrier rib formed between an upper substrate and a lower substrate to define discharge regions, and a phosphor layer including red, green, and blue phosphor layers corresponding to the discharge regions. A height of the green phosphor layer is lower than a height of the barrier rib.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: June 3, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Kyoung Kang, Jae-Ik Kwon
  • Patent number: 7378796
    Abstract: A plasma display panel has a stable addressing characteristic, no dielectric breakdown, and high reliability. Data electrodes (10), first dielectric layer (17) for covering the data electrodes (10), priming electrodes (15), and second dielectric layer (18) for covering the priming electrodes (15) are sequentially formed on back substrate (2). Slotted parts (10a) are formed in a part of each data electrode (10). Thus, data electrodes (10) are prevented from deforming during the manufacturing, and dielectric voltage between data electrodes (10) and priming electrodes (15) is improved.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: May 27, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Morio Fujitani, Keisuke Sumida, Tatsuo Mifune, Shinichiro Ishino, Hiroyuki Tachibana
  • Publication number: 20080116805
    Abstract: A Plasma Display Panel (PDP) having reduced manufacturing costs and simultaneously displaying an image having a uniform luminance supplies a sustain pulse only to scan electrodes among scan electrodes and sustain electrodes arranged on a top substrate during a sustain period of each of a plurality of subfields. The PDP includes: a top dielectric layer arranged on the scan and sustain electrodes; a passivation layer arranged on the top dielectric layer; address electrodes arranged on a bottom substrate facing the top substrate, the address electrodes crossing the scan and sustain electrodes; a bottom dielectric layer arranged on the address electrodes. The top dielectric layer includes a region overlapping the scan electrodes and a region overlapping the sustain electrodes, the region overlapping the scan electrodes having a different thickness than the region overlapping the sustain electrodes.
    Type: Application
    Filed: September 12, 2007
    Publication date: May 22, 2008
    Inventor: Jung-Suk Song
  • Publication number: 20080116803
    Abstract: A plasma display panel (PDP) is made of front panel (2) and a rear panel. The front panel includes display electrodes (6), dielectric layer (8), and protective layer (9) that are formed on front glass substrate (3). The rear panel includes electrodes, barrier ribs, and phosphor layers that are formed on a substrate. The front panel and the rear panel are faced with each other, and the peripheries thereof are sealed to form a discharge space therebetween. Each of display electrodes (6) contains at least silver. Dielectric layer (8) is made of first dielectric layer (81) that contains bismuth oxide covering display electrodes (6), and second dielectric layer (82) that contains bismuth oxide covering first dielectric layer (81). The content of bismuth oxide in second dielectric layer (82) is smaller than the content of bismuth oxide in first dielectric layer (81).
    Type: Application
    Filed: September 27, 2006
    Publication date: May 22, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akira Kawase, Kazuhiro Morioka, Kazuhiro Yokota, Yui Saitou, Tatsuo Mifune
  • Publication number: 20080116804
    Abstract: A plasma display panel (PDP) includes a front substrate, a rear substrate facing the front substrate, barrier ribs between the front and rear substrates to define a plurality of discharge cells, photoluminescent material in the discharge cells, first electrodes on the front substrate along a first direction, second electrodes on the rear substrate and extending in a second direction crossing the first direction, at least one dielectric layer on the rear substrate, and a white pigment layer on the substrate.
    Type: Application
    Filed: September 11, 2007
    Publication date: May 22, 2008
    Inventor: Jong-Won Kim
  • Patent number: 7375468
    Abstract: A plasma display panel comprising a first panel having a plurality of discharge sustaining electrode pairs, and a second panel having a plurality of address electrodes and facing the first panel. A discharge sustaining electrode pair includes a scan electrode and a sustain electrode having discharge surfaces facing each other, and the scan electrode is closer to the address electrode than the sustain electrode. The plasma display panel requires a reduced address voltage and discharge voltage.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: May 20, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Ji-Sung Ko
  • Patent number: 7375466
    Abstract: A plasma display panel where the address electrodes are designed to have perforated portions in the vicinity of display electrodes to prevent the build up of unwanted wall charges in the vicinity of the display electrodes to thus prevent mis-discharge in the plasma display panel. The perforations can be quadrilateral in shape, and can be made to different sizes depending on the color of the phosphor in the vicinity of the perforation. As a result, drive voltage margin quality between the different colors can be improved to produce a more reliable display.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: May 20, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Ik Kwon, Tae-Kyoung Kang, Eun-Gi Heo
  • Patent number: 7375465
    Abstract: A plasma display panel includes a first and a second substrate, a plurality of first sustain electrodes and second sustain electrodes formed in parallel on the first substrate, a plurality of address electrodes formed on the second substrate, and a flexible printed circuit (FPC) having a plurality of bonding pads formed at one side of the FPC. The first sustain electrodes and second sustain electrodes form a plurality of sustain electrode pairs. The first sustain electrodes have a plurality of first electrode terminals and the second sustain electrodes have a plurality of second electrode terminals formed on one end of the first substrate. The address electrodes extend in a direction intersecting the plurality of first sustain electrodes and second sustain electrodes. The plurality of bonding pads formed at one side of the FPC are coupled to the plurality of first electrode terminals and second electrode terminals.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 20, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Bi-Hsien Chen
  • 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
  • Publication number: 20080111487
    Abstract: A Plasma Display Panel (PDP) includes: a first substrate and a second substrate that are arranged in parallel with each other with a predetermined distance therebetween; a plurality of address electrodes arranged on the first substrate; a first dielectric layer arranged to cover the address electrodes; a plurality of barrier ribs having a predetermined height from the first dielectric layer to define discharge cells; red, blue, and green phosphor layers respectively arranged in the discharge cells; a plurality of display electrodes arranged on one side of the second substrate facing the first substrate in a direction crossing the address electrodes; a second dielectric layer arranged to cover the display electrodes; and a protective layer arranged to cover the second dielectric layer. The second dielectric layer satisfies values of CIE L*a*b* where 70.0<L*<74.5, 0.0<a*<1.0, and ?5.0<b*<?8.0.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Inventor: Seong-Hun Choo
  • Publication number: 20080111485
    Abstract: A plasma display panel includes first and second substrates facing and spaced apart from each other, barrier ribs disposed between the first and second substrates to define discharge cells, address electrodes formed on the first substrate and extending in a first direction to correspond to the discharge cells, first and second electrodes formed on the second substrate and extending in a second direction crossing the first direction to correspond to the discharge cells, and a dielectric layer formed on the second substrate to cover the first and second electrodes. The first and second electrodes each include a plurality of bus lines of which some of the bus lines form discharge gaps at a central portion of the respective discharge cells. The dielectric layer is provided with grooves formed within the discharge gaps to decrease the requisite firing voltage and improve the light emission efficiency of the panel.
    Type: Application
    Filed: June 1, 2007
    Publication date: May 15, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Chong-Gi HONG, Tae-Kyoung Kang
  • Patent number: 7372205
    Abstract: Panel comprising an array of barrier ribs each having a base resting on a plate and a top in contact with another plate that includes at least two arrays of coplanar electrodes each preferably having a constant width. According to the invention, these barrier ribs have, at their top, a low-permittivity region of thickness greater than 3 ?m and less than or equal to one fifth of their total height, which has a mean dielectric permittivity at least three times smaller than the dielectric permittivity of these barrier ribs measured at their base. Thanks to the invention, the confinement of the plasma discharges far from the barrier ribs is substantially improved.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: May 13, 2008
    Assignee: Thomson Licensing
    Inventor: Laurent Tessier
  • Patent number: 7372206
    Abstract: The present invention provides that a gas discharge panel substrate assembly comprising: electrodes formed on a substrate, a dielectric layer covering the electrodes, and a protective layer covering the dielectric layer and in contact with a discharge space, wherein the protective layer includes MgO and at least one compound selected from the group consisting of an Al compound, a Ti compound, a Y compound, a Zn compound, a Zr compound, a Ta compound and SiC.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: May 13, 2008
    Assignees: Fujitsu Limited, Fujitsu Hitachi Plasma Display Limited
    Inventors: Kazunori Inoue, Shigeo Kasahara, Koichi Sakita, Osamu Toyoda, Minoru Hasegawa, Hideki Harada, Keiichi Betsui
  • Publication number: 20080106201
    Abstract: A plasma display panel including: a front substrate; a rear substrate; address electrodes extending in a first direction on the rear substrate; barrier ribs between the front and rear substrates defining discharge cells; display electrodes extending in a second direction crossing the first direction and corresponding to the discharge cells, wherein the display electrodes include bus electrodes colored a third chromatic color; a dielectric layer on the front substrate, the dielectric layer covering the display electrodes and colored a first chromatic color that is in a subtractive color mixture relationship with the third chromatic color; and a filter disposed on an outer surface of the front substrate, the filter including: a plurality of light guides; and a plurality of non-glare members that are adjacent to the light guides and colored a second chromatic color.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 8, 2008
    Inventors: Chong-Gi Hong, Tae-Kyoung Kang
  • Patent number: 7368871
    Abstract: A plasma display apparatus includes a plasma display panel having a first substrate, a second substrate facing the first substrate and sealed thereto, and a plasma discharge structure disposed between the first and second substrates. A chassis base is positioned close to the plasma display panel at one surface side and in parallel with the panel. A driving circuit is mounted on the opposite surface side of the chassis base and electrically connected to the plasma display panel to drive the panel. The first and second substrates of the plasma display panel have chamfered portions formed along the edges of the first and second substrate surfaces that face away from each other.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: May 6, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jin-Sub Kim
  • Publication number: 20080100219
    Abstract: Provided is a green phosphor for a plasma display panel (PDP) represented by Formula 1. (Cax,Mgy,Zn2-x-y)SiO4:MnFormula 1 Here, 0<x, y<1. The green phosphor is used alone or in combination with BaMgAlqOz:Mn (7<q<15 and 12<z<28) to prepare a phosphor layer, and a PDP including a phosphor layer formed of the green phosphor may have improved luminance deterioration property.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Inventors: Young-Kwan Kim, Teruo Kurai
  • Patent number: 7365490
    Abstract: A plasma display device enhances a shield structure for shielding electromagnetic interference (EMI) and/or noise arising in a circuit board. The plasma display device includes a plasma display panel (PDP) for displaying a predetermined image thereon. In addition, the plasma display device includes a chassis base for supporting the PDP, a circuit board installed on the chassis base, and a shield member for covering at least a portion of the circuit boards. The shield member has a conducting layer on at least one side of an insulating substrate. Using the structure described, EMI and/or noise arising from the circuit board is shielded.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: April 29, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Chun-Soo Kim
  • Patent number: 7365491
    Abstract: A plasma display panel includes a back substrate having back barrier ribs partitioning a plurality of discharge cells; a front substrate arranged to be opposite to the back substrate and having front barrier ribs partitioning the discharge cells in cooperation with the back barrier ribs; back discharge electrodes arranged within the back barrier ribs to enclose the discharge cells; front discharge electrodes arranged within the front barrier ribs to enclose the discharge cells; phosphor layers arranged within the discharge cells; and discharge gas arranged within the discharge cells.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 29, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Doo Kang, Won-Ju Yi
  • Patent number: 7365492
    Abstract: Plasma display panels (PDPs) that can be readily manufactured and that have increased bright room contrast ratios are provided. One PDP includes a front substrate adapted to allow visible light to pass, a rear substrate facing the front substrate, and a plurality of barrier ribs disposed between the front substrate and the rear substrate defining a plurality of discharge cells. At least a portion of the barrier ribs is colored with a first color. The PDP further comprises a plurality of sustain electrodes disposed on the front substrate facing the rear substrate, each of which has a plurality of electrode parts. The PDP also includes a front dielectric layer disposed on the front substrate covering the sustain electrodes. The front dielectric layer is colored with a second color. Brightness and chroma of both of the first and second colors are reduced when the first and second colors are subtractively mixed.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 29, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Gun-Young Hong, Sung-Hune Yoo
  • Patent number: 7362051
    Abstract: A plasma display panel structure and a method of manufacturing the same. The plasma display panel has a front portion having a substrate having sustain electrodes. The plasma display panel has a front dielectric layer that attaches to the front portion. The front dielectric layer has colored dielectric layers made of a different material for each discharging spaces of red, green, and blue color and, colored dielectric layers being disposed corresponding to discharging spaces of red, green, and blue colors. Lattice dielectric layers are also formed to improve contrast. The colored and the lattice dielectric layers being fine pitch or high density patterned formed by a compression tool. The plasma display panel also has a rear substrate on which address electrodes are formed in a direction orthogonal to the sustain electrodes.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: April 22, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Joung Kweon
  • Patent number: 7361072
    Abstract: A plasma display panel and the manufacturing method thereof. Forming partition wall structures on the back substrate of the paste display panel and forming the column-shaped protrusions at the positions corresponding to the cuts on the rib on the front substrate of the plasma display panel. The manufacturing process is simple and the alignment of the front and back substrate is easy. In addition, the size of the opening of the rib and the size of the cut can be easily adjusted according to the needs of the application during the manufacturing process.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: April 22, 2008
    Assignee: AU Optronics Corporation
    Inventors: Chu-Shan Lin, Bing-Ming Ho, Tzu-Pang Chiang