Three Or More Electrode Discharge Device Patents (Class 313/581)
  • Patent number: 7368873
    Abstract: A plasma display panel, including a front substrate, a rear substrate facing the front substrate, barrier ribs formed of a dielectric material to define discharge cells between the front substrate and the rear substrate, front discharge electrodes and rear discharge electrodes located in the barrier ribs for inducing discharge in the discharge cells, phosphor layers located in a plurality of first grooves formed on the front substrate, discharge gas in the discharge cells, and black matrix layers in the barrier ribs interposed between discharge cells. Accordingly, the luminous efficiency and brightness increases, phosphor layer deterioration is reduced, and flickering due to light interference is prevented.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: May 6, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Joung Kweon
  • 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
  • Patent number: 7358671
    Abstract: A plasma display panel (PDP) includes first and second substrates opposing one another with a predetermined gap therebetween. The PDP also includes address electrodes formed on a surface of the first substrate opposing the second substrate, and barrier ribs formed in the gap between the first and second substrates. The barrier ribs define discharge cells, and a phosphor layer is formed in each of the discharge cells. Further, discharge sustain electrodes made of a metal material are formed on a surface of the second substrate opposing the first substrate. The discharge sustain electrodes include line sections, each pair of which is formed corresponding to each discharge cell, and extensions are formed extending from the line sections into each of the discharge cells to define openings. Also, indentations are formed in distal ends of each of the extensions such that discharge gaps of differing sizes are formed between each pair of the extensions.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: April 15, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Ik Kwon, Kyoung-Doo Kang
  • Publication number: 20080079363
    Abstract: In a plasma display panel having a discharge gas sealed in a gap between a front side substrate and a rear side substrate opposed to each other and having ribs partitioning a gas-sealed space into a discharge cell array arranged above an inner surface of one of the substrates, the rib includes an upper-layer rib and a lower-layer rib, and the upper-layer rib and the lower-layer rib are made of rib materials different from each other in resistance to etching, thereby allowing for formation of high ribs to enlarge the discharge space without affecting the upper-layer ribs when forming the lower-layer ribs.
    Type: Application
    Filed: April 24, 2007
    Publication date: April 3, 2008
    Inventors: Takashi Yoshinaga, Tatsuhiko Kawasaki
  • Publication number: 20080055302
    Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including first, second and third electrodes, a data driver supplying a data signal to the third electrode during an address period, and a sustain driver. The sustain driver consecutively supplies a first signal of a positive polarity direction, a second signal of a negative polarity direction, a third signal of a positive polarity direction, and a fourth signal of a negative polarity direction to the first electrode, and supplies a reference voltage to the second electrode during a sustain period. A duration of a bias period of the first signal is shorter than a duration of a bias period of the third signal.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Inventors: Janghwan Cho, Hyunil Park, Changjoon Park, Sunghwan Kim
  • Patent number: 7339318
    Abstract: Tile comprising a substrate coated with at least one array of electrodes which is itself coated with an array of barrier ribs made of a mineral material, the porosity of which is greater than 25%, comprising a porous base underlayer which is inserted between the array of electrodes and the array of barrier ribs and which is made of a mineral material, the porosity of which is greater than 25%. Reinforced porous barrier ribs are obtained; advantageously, this tile does not include a specific dielectric layer; the number of manufacturing steps is limited and the tile can be manufactured entirely at low temperature.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: March 4, 2008
    Assignee: Thomson Licensing
    Inventors: Armand Bettinelli, Jean-Claude Martinez
  • Patent number: 7321186
    Abstract: Disclosed is a plasma display apparatus having the same in which an electromagnetic wave is not only shielded, but also a transmission rate can be secured. The front filter including: an electromagnetic-wave shield film having a conductive powder decentralized therein, for shielding an electromagnetic wave. At this time, in order to form the electromagnetic-wave shield film, a mixture of the conductive powder and a predetermined synthetic resin is coated on a base film.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: January 22, 2008
    Assignee: LG Electronics Inc.
    Inventors: Young Sung Kim, Kyung Ku Kim, Hong Rae Cha, Myeong Soo Chang, Byung Gil Ryu, Eun Ho Yoo
  • Patent number: 7304430
    Abstract: A flat lamp is provided, including an upper plate and a lower plate arranged to face each other at a predetermined distance; a plurality of spacers installed between the upper plate and the lower plate to form discharge spaces; a first and second electrodes provided in a stripe form on the outer surface of the upper plate or the lower plate with the respective discharge spaces located thereon; a first and second inner electrodes provided within each of the spacers; and a fluorescent layer formed on each of inner surfaces of the upper and lower plates and each of the outer surfaces of the spacers.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: December 4, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun Jang, Hidekazu Hatanaka, Young-mo Kim, Seong-eui Lee, Xiaoqing Zeng, Seung-hyun Son, Gi-young Kim, Hyoung-bin Park
  • Patent number: 7288891
    Abstract: A plasma display panel is provided. The plasma display panel comprises a plurality of first electrodes and a plurality of second electrodes; wherein the first electrodes and the second electrodes cross at a discharge space; wherein prominent electrodes are formed at a portion of the first electrodes where the first electrodes cross with the second electrodes to extend the area of the address electrodes so that a stable address discharge may occur, and vertical centers of the prominent electrodes are asymmetrical with respect to vertical centers of the discharge spaces, which may be coated with red, green, and blue fluorescent layers.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: October 30, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Se-Jong Kim, Seok-Gyun Woo
  • Patent number: 7282857
    Abstract: A planar light source device includes a light source body having at least one partition member in a space formed by first and second substrates, and at least one plasma container. Plasma is generated in a plurality of discharge regions that are connected to one another through the plasma container. The plasma container is disposed at a position adjacent to the partition member to receive a portion of the plasma. According to this configuration, distribution of the plasma in the discharge regions is uniform and luminance of the light generated from the planar light source device is uniform. As a result, the planar light source device implements a good display quality of the LCD apparatus.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: October 16, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon-Yong Jang, Geun-Young Kim, Sang-Yu Lee
  • Patent number: 7282864
    Abstract: A discharge tube is driven by a multiple-phase drive circuit, and includes a discharge container having an internal discharge space and multiple electrodes that are secured to the discharge container and correspond to each phase of the multiple-phase drive circuit. The tips of the multiple electrodes protrude into the discharge space, and are oriented toward a predetermined single point of union. All of the electrodes located on one side of a virtual plane that includes the predetermined point of union. Furthermore, a discharge lamp having the discharge tube includes three electrodes, and electric discharge can take place between each pair of electrodes. When the discharge lamp is driven at maximum output, voltage is impressed to the three electrode terminals such that at least one of the voltages VeAB, VeBC, VeCA between the three electrode terminals will be in a discharge period.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 16, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Kesatoshi Takeuchi
  • Patent number: 7279829
    Abstract: A flat-type fluorescent lamp device includes a first substrate, a plurality of first and second electrodes arranged on the first substrate at fixed intervals, a first fluorescent layer on an entire surface of the first substrate including the first and second electrodes, a second substrate having a plurality of projection portions for maintaining a uniform gap between the first and second substrates, and a second fluorescent layer on the second substrate except at regions, of the projection portions that contact the first substrate.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: October 9, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae Bum Kim, Won Jong Lee, Sa Kyun Rha
  • Patent number: 7277067
    Abstract: A plasma display panel with an improved sustain electrode structure and capable of enhancing optical efficiency includes: a rear substrate; address electrodes arranged in a predetermined pattern on the rear substrate; a lower dielectric layer arranged to cover the address electrodes; barrier ribs arranged on the lower dielectric layer; phosphors arranged to be applied to internal sections of discharge cells defined by the barrier ribs; a front substrate arranged opposite the rear substrate; sustain electrodes including bus electrodes arranged in a predetermined pattern and transparent electrodes having relatively wider widths than that of the bus electrodes and arranged to extend toward the internal sections of the discharge cells from the bus electrodes, the transparent electrodes including lead-in parts each having a width equal to 0.5 to 1.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: October 2, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Ji-Sung Ko
  • Patent number: 7271541
    Abstract: A surface light source device includes a first substrate, a second substrate and a hollow electrode. The second substrate is combined with the first substrate to form a plurality of discharge spaces. The second substrate includes a plurality of recesses. The hollow electrode is disposed in each of the discharge spaces under the recesses of the second substrate, respectively. The surface light source device further includes an external electrode disposed on a lower surface of the first substrate corresponding to the hollow electrode. The external electrodes are on an outer surface of the lamp body, and are partially overlapped with the discharge spaces. The hollow electrode may have a rectangular tube or other suitable shape. As a result of the foregoing construction, the life span of the surface light source device may increase, and the light emitting efficiency may similarly increase.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-Il Park, Sang-Yu Lee
  • Patent number: 7271531
    Abstract: A surface light source device includes a light source body, a partition member, an isolating member and a voltage applying part. The light source body has an internal space into which discharge gas is injected. The partition wall divides the internal space into discharge spaces. The partition wall has a connection hole that connects the discharge spaces with each other. The isolating member is disposed such that the isolating member corresponds to the connection hole. The isolating member seals the connection hole to isolate the discharge spaces from each other. The voltage applying part induces discharge of the discharge gas in the discharge spaces. Thus, current drift is prevented.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 18, 2007
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Seok-Hyun Cho, Ki-Yeon Lee, Jae-Hyeon Ko, Dong-Woo Kim, Hae-Soo Ha
  • Patent number: 7247988
    Abstract: A plasma display panel for improving a color coordinates correction and a color temperature is disclosed. In the plasma display panel, a vertical barrier rib separates red, green and blue discharge cells from each other in a longitudinal direction. A horizontal barrier rib is provided between the vertical barrier ribs to separate the red, green and blue discharge cells from each other in a wide direction. The horizontal barrier rib has a first horizontal barrier rib provided between the red discharge cells, a second horizontal barrier rib provided between the green discharge cells, and a third horizontal barrier rib provided between the blue discharge cells and having a smaller width than the first and second horizontal barrier ribs.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: July 24, 2007
    Assignee: LG Electronics Inc.
    Inventors: Gi Bum Lee, Jin Young Kim
  • Patent number: 7239086
    Abstract: An AC type plasma display panel includes a plurality of pairs of display electrodes, a dielectric layer, a data electrode and a float electrode. A pair of the plurality of pairs of display electrodes are disposed parallel to each other on a front substrate and form a discharge gap for emitting light for display. The dielectric layer is formed on the front substrate and covers the plurality of pairs of display electrodes excluding at least a part of the discharge gap. The data electrode is disposed on a rear substrate, which is placed facing the front substrate across a discharge space, in a manner to cross under the display electrodes. The float electrode is disposed at the discharge gap on the front substrate.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: July 3, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Haruhiro Yuki, Yoshiyasu Honma
  • Patent number: 7215079
    Abstract: A flat fluorescent lamp has a uniform screen brightness even with a low discharge initiating voltage. A backlight unit using the flat fluorescent lamp is provided. The flat fluorescent lamp includes a front substrate, a back substrate having a continuous serpentine type discharge channel defined by a plurality of partitions extending alternately from both side ends of the back substrate. An inverter and a pair of electrodes provided on one of the front and the back substrates apply power to the electrodes. Each of the electrodes includes discharge electrodes mounted in strip configurations and a plurality of subsidiary electrodes that are mounted to extend perpendicularly from the discharge electrodes and to correspond to positions of the partitions. The plurality of subsidiary electrodes are alternately connected to inner edges of both the discharge electrodes so that neighboring subsidiary electrodes have different polarities.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: May 8, 2007
    Assignee: LS Tech Co., Ltd.
    Inventors: Deuk Il Park, Choong Yop Rhew
  • Patent number: 7205720
    Abstract: A plasma display panel (PDP) has a structure which extends a discharge space, increases a visible light emission area, enables a low driving voltage, and improves light emission efficiency. The PDP comprises: a pair of substrates including a first substrate and a second substrate facing each other; a barrier rib located between the first substrate and the second substrate, and defining discharge, together with the first and second substrates, cells where gas discharge is generated; a plurality of discharge electrodes comprising first discharge electrodes and second discharge electrodes, surrounding the discharge cell vertically spaced in the barrier rib, for generating a gas discharge by mutual actions; and a first phosphor layer and a second phosphor layer located in the discharge cell formed in the first substrate and in the discharge cell formed in the second substrate, respectively.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: April 17, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Se-Jong Kim
  • Patent number: 7180241
    Abstract: A plasma display apparatus minimizing the occupying area of the driving boards in the chassis base by using an integrated driving board capable of driving scan electrodes sustain electrodes. A plasma display panel includes: a plurality of first electrodes (sustain electrodes or X electrodes), a plurality of second electrodes (scan electrodes or Y electrodes), a plurality of third electrodes (address electrodes) extending in a direction crossing the plurality of the first and the second electrodes, and a chassis base to which the plasma display panel is fixed. Driving boards are attached on a second side of the chassis base, the driving boards generating a driving voltage and applying the driving voltage to the electrodes. The first electrodes are grounded to the chassis base.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: February 20, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kazuhiro Ito
  • Patent number: 7161296
    Abstract: A plasma display device includes a plasma display panel (PDP). A chassis base supports the PDP from a surface of the same opposite a surface that displays images, and a plurality of driving circuit boards are mounted on the chassis base. A front cabinet is positioned adjacent to the surface of the plasma display panel that displays images. Also, a back cover is positioned adjacent to a surface of the chassis base opposite the surface adjacent to the PDP and is integrally assembled to the front cabinet with the chassis base and the plasma display panel interposed therebetween. The plasma display device also includes thermoelectric semiconductor devices that are mounted within the back cover. The thermoelectric semiconductor devices act to discharge heat generated by the PDP and the driving circuit boards to outside the back cover.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: January 9, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ki-Jung Kim, Tae-Kyoung Kang
  • Patent number: 7141928
    Abstract: A flat lamp and a method of driving the same are provided. The flat lamp includes a front panel and a rear panel, which are spaced a predetermined distance apart from each other and hermetically sealed, and a spacer, which is provided between the front panel and the rear panel to maintain the front and rear panels separated by the predetermined distance and secure a discharge space. A predetermined discharge gas exists in the discharge space, and a fluorescent layer is formed on an inner surface of at least one of the front and rear panels. In the flat lamp, a plurality of electrode groups, each of which includes at least three electrodes, are provided in the rear panel.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: November 28, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gi-young Kim, Hyoung-bin Park, Seung-hyun Son
  • Patent number: 7132794
    Abstract: A plasma display panel for improving a color coordinates correction and a color temperature is disclosed. In the plasma display panel, a vertical barrier rib separates red, green and blue discharge cells from each other in a longitudinal direction. A horizontal barrier rib is provided between the vertical barrier ribs to separate the red, green and blue discharge cells from each other in a wide direction. The horizontal barrier rib has a first horizontal barrier rib provided between the red discharge cells, a second horizontal barrier rib provided between the green discharge cells, and a third horizontal barrier rib provided between the blue discharge cells and having a smaller width than the first and second horizontal barrier ribs.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: November 7, 2006
    Assignee: LG Electronics Inc.
    Inventors: Gi Bum Lee, Jin Young Kim
  • Patent number: 7122951
    Abstract: The invention proposes a dielectric barrier discharge lamp having a phosphor mixture and improved color rendering. The phosphor mixture comprises at least the phosphor components A: cerium-activated yttrium aluminate (Y3Al5O12:Ce) and B: europium-activated barium magnesium aluminate (BaMgAl10O17:Eu). To further improve the color rendering and to match the emission spectrum to the spectral sensitivity of film, the phosphor mixture optionally also comprises the phosphor component C: cerium- and manganese-activated gadolinium magnesium zinc pentaborate (Gd(Zn,Mg)B5O10:(Ce, Mn)) and/or the phosphor component D: europium-activated strontium aluminate (Sr4Al14O25:Eu).
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: October 17, 2006
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrisch Gluehlampen mbH
    Inventors: Jürgen Heider, Renate Hirrle, Regine Krämer, Ulrich Müller, Martin Zachau
  • Patent number: 7119482
    Abstract: A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: October 10, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
  • Patent number: 7098593
    Abstract: The present invention relates to a stationary ion cold cathode fluorescent lighting system comprising a cold cathode fluorescent lamp with a radial D. C. electric field established therein so as to sufficiently energize electrons ionized therein through a process of chain collision and reduce the radial velocity of mercury ions (Hg+2) and argon ions (Ar+2) ionized therein to a virtual zero when touching a phosphor layer on the inside surface of the lamp, preventing the phosphors from being bombarded by the ions and forming an amorphous layer thereon, and preventing mercury from embedding in the phosphor layer, and with an axial anti-equivalent D. C. electric field established between electrodes of the lamp so as to prevent mercury from accumulating on the electrodes and to maximize the life of the phosphor layer as well as the lamp.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 29, 2006
    Inventor: Ming-Ching Teng
  • Patent number: 7084567
    Abstract: The present invention relates to a plasma display panel with improved Luminance and luminous efficiency. The panel includes barrier ribs configured to form a plurality of closed cells, with each closed cell having a discharge region filled with a xenon gas of at least 15% by volume, and another gas of 85% or less by volume.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: August 1, 2006
    Assignee: .AU Optronics Corporation
    Inventors: Po-Cheng Chen, Jiun-Han Wu, Chen-Kwang Pan, Jin-Yuh Lu
  • Patent number: 7078857
    Abstract: A flat luminescent lamp includes first and second substrates attached to each other at a plurality of adhesive portions, a plurality of discharge spaces in regions other than the plurality of adhesive portions between the first and second substrates, first and second electrodes arranged in the discharge spaces to be separated from each other, first and second phosphor layers formed in the discharge spaces, and first and second frames sealing the first and second substrates.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 18, 2006
    Assignees: LG.Philips LCD Co., Ltd., Sangnong Enterprise Co., Ltd.
    Inventor: Hong Bae Park
  • Patent number: 7053551
    Abstract: At least one kind of a rear earth element or an alkaline earth metal element is activated together with manganese in a zinc silicate system phosphor, and a mean particle size of the phosphor is between 0.01 and 1.0 ?m.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: May 30, 2006
    Assignee: Konica Corporation
    Inventors: Hideki Hoshino, Satoshi Ito, Naoko Furusawa, Hisatake Okada
  • Patent number: 6972527
    Abstract: An alternating current plasma display panel is provided. The alternating current plasma display panel includes a plurality of first sub-pixels, a plurality of second sub-pixels, a plurality of third sub-pixels, a plurality of common data electrodes and a plurality of row electrodes. The first sub-pixels, the second sub-pixels and the third sub-pixels are disposed in a delta configuration. The common data electrodes are disposed below the sub-pixels, and the row electrodes are disposed above the sub-pixels. The amount of the first sub-pixels, the second sub-pixels and the third sub-pixels passed through by each of the common data electrodes are the same. The alternating current plasma display panel can reduce the number of data driving chips and effectively improve the quality of image.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: December 6, 2005
    Assignee: Au Optronics Corporation
    Inventors: Yao-Ching Su, Chen-Kwang Pan
  • Patent number: 6927543
    Abstract: A plasma display panel has row electrode pairs regularly arranged on a front glass substrate, a plurality of column electrodes regularly arranged in a row direction on a back glass substrate and each extending in a column direction to form discharge cells at the intersections with the row electrode pairs in a discharge space, and a partition wall positioned between the front glass substrate and the back glass substrate to define the discharge cells. The partition wall is constituted of a metallic base and a dielectric insulation layer covering the metallic base. An electrode for applying a direct-current potential is connected to the metallic base of the partition wall.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: August 9, 2005
    Assignee: Pioneer Corporation
    Inventor: Masaki Yoshinari
  • Patent number: 6903711
    Abstract: In a driving method for driving a plasma display panel, achieving improvements on luminous efficiency, brightness and contrast, as well as, low voltage and low power consumption, and also high-speed addressing and sustain therewith, wherein onto a second display electrode is applied pulse voltage in reverse polarity with sustain pulse voltage, nearly in synchronism with the sustain pulse voltage to be applied onto a first display electrode, thereby shifting initial discharge (or, pre-charge) caused between the first display electrode and a metal electrode of a partition portion after the generation thereof into display discharge, thereby forming wall charge and wall voltage on the second display electrode.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: June 7, 2005
    Assignee: Hitachi, Ltd.
    Inventor: Yutaka Akiba
  • Patent number: 6876139
    Abstract: A lamp includes an enclosure with partitions defining a channel having channel segments and/or providing multiple paths for an electrical arc to travel. The channel segments can be implemented by adding additional electrodes in the channel formed by the partitions, by forming a channel where the arc may travel in multiple directions, or by a combination of these methods. The channel segments and multiple directions of arc travel tend to reduce the voltage required to start the lamp.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: April 5, 2005
    Assignee: Honeywell International Inc.
    Inventor: Alan Stuart Feldman
  • Patent number: 6870317
    Abstract: In a gas discharge tube 1 of the present invention, a focusing electrode portion 14 and a discharge limiting portion 30 are electrically insulated, and the discharge limiting portion 30 comprises a discharge limiting opening 31 which opposes an arc ball shaping concave portion 16. Thus the formation of a discharge path from a cathode portion 20 to the concave portion 16 is ensured and a starting discharge can be reliably generated. Further, by means of the discharge limiting opening 31 which opposes the concave portion 16, an arc ball S can be continuously maintained in an appropriate shape even when a lamp is illuminated, and thus the arc ball S can be shaped with stability, thereby stabilizing the luminance and light quantity.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 22, 2005
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Koji Kawai, Tsuyoshi Minamizawa
  • Patent number: 6825606
    Abstract: A plasma flat-panel display has a glass substrate having a first pair of parallel sustainer electrodes deposited thereon that includes a first sustainer electrode and a second sustainer electrode. A second pair of parallel sustainer electrodes also is deposited upon the substrate that also includes a first sustainer electrode and a second sustainer electrode. A single common electrode pad is electrically connected to the first sustainer electrode in the first sustainer electrode pair and the first sustainer electrode in the second sustainer electrode pair. The electrode pad is adapted to be connected to a first sustainer voltage waveform supply so that a single supply provides a voltage waveform to both of the first sustainer electrodes.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: November 30, 2004
    Assignee: LG Electronics Inc.
    Inventors: Jerry D. Schermerhorn, Oleksandr Shvydky
  • Patent number: 6822627
    Abstract: There are provided a plasma display panel and an imaging device which realize a high luminous efficiency, guaranteed long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an address electrode is 2 &mgr;s or less.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: November 23, 2004
    Assignees: Hitachi, Ltd., Fujitsu Hitachi Plasma Display Ltd.
    Inventors: Norihiro Uemura, Keizo Suzuki, Hiroshi Kajiyama, Yusuke Yajima, Masayuki Shibata, Yoshimi Kawanami, Koji Ohira, Ikuo Ozaki
  • Patent number: 6809476
    Abstract: A plasma display panel and a method for fabricating the same are disclosed, in which the fabricating process time of the plasma display panel can be reduced, characteristic and performance of the panel can be prevented from being reduced, and the panel can be prevented from being damaged. Also, a panel structure is not changed by external pressure variation.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: October 26, 2004
    Assignee: LG Electronics Inc.
    Inventors: Mi Kyoung Lee, Kui Sung Shin
  • Publication number: 20040207323
    Abstract: Light-emitting devices, and related components, systems and methods are disclosed.
    Type: Application
    Filed: November 26, 2003
    Publication date: October 21, 2004
    Inventors: Alexei A. Erchak, Udi E. Meirav, Michael Gregory Brown
  • Patent number: 6791278
    Abstract: An electron emitting structure, for example, for use as a cathode plate of a field emission display (FED). The structure comprises a substrate, base electrodes formed on the substrate and gate electrodes crossing over the base electrodes. An insulating material is formed on the substrate and the base electrodes that separates the gate electrodes from the base electrodes, the gate electrodes formed on the insulating material. And an electron emitting material is deposited on active regions of the base electrodes, each active region defined as a portion of each base electrode between a respective pair of gate electrodes. In one implementation, the FED produces a substantially uniform electric field in the active region in order to produce a substantially straight electron emission little dispersion.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 14, 2004
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Benjamin Edward Russ, Jack Barger
  • Patent number: 6784615
    Abstract: A plasma display panel having a plurality of surface discharge electrode pairs formed in a column direction at predetermined intervals, each surface discharge electrode pair having a pair of sustaining electrodes extending in a row direction so that a discharge gap is put between the sustaining electrodes. Each sustaining electrode is made up of a transparent conductive thin film, is provided with a main electrode portion formed in stripe shapes so as to face the discharge gap and a metal film of which a width is narrower than a width of the main electrode portion, and a sub-electrode portion formed at a side opposite to the discharge gap side of the main electrode portion which corresponds. With this configuration, a high image quality and a low power consumption can be obtained.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 31, 2004
    Assignee: NEC Corporation
    Inventors: Akifumi Okigawa, Toshihiro Yoshioka
  • Patent number: 6768261
    Abstract: A color plasma display panel which includes front and back substrates bonded together to form an integrated body and separated from each other at a predetermined distance, the front substrate being an image displaying surface, the back substrate including a plurality of sustain discharge electrodes forming a pair of plural electrodes in a cell, a dielectric layer for insulating the sustain discharge electrodes, and a protective layer; and the front substrate including a plurality of address electrodes arranged in crossing with the sustain discharge electrodes, and a fluorescent layer for generating visible rays.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 27, 2004
    Assignee: LG Electronics Inc.
    Inventors: Hong-Ju Ha, Hun-Gun Park
  • Patent number: 6747414
    Abstract: A plasma display panel is provided which is capable of improving efficiency of light emission and of achieving a stable operation with a driving margin being kept wide by keeping a discharge initiating voltage low and by maintaining an erroneous discharge voltage high. Each of first electrode portions of transparent electrodes formed on a first substrate forms a clearance being smaller than a width of each of partition walls on each of the partition walls formed between discharge cells being adjacent to each other in a row direction on a screen. Each of second electrode portions is formed apart from each of the partition walls. Each of third electrode portions is so constructed that its width in the row direction on the screen is smaller than that of each of second electrode portions.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: June 8, 2004
    Assignee: NEC Plasma Display Corporation
    Inventor: Kunio Yoshida
  • Patent number: 6747407
    Abstract: A plasma display device including a back surface glass plate equipped with discharge electrodes and having electronics connected to the back surface thereof, a front surface glass plate mounted on and opposing to the back surface glass plate via separation walls and having discharge electrodes, and luminescent pixels defined by the back surface glass plate the separation wall and the front surface glass plate. The back surface glass plate of the luminescent pixel opposite the display surface is formed as a reflection surface, and a fluorescent layer is formed on said reflection surface.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: June 8, 2004
    Assignee: Jamco Corporation
    Inventors: Takashi Saito, Katsuhiko Umeda
  • Patent number: 6744208
    Abstract: A discharge light-emitting device includes a gas-filled discharge spaces (30) to use electric discharge in the gas. The gas contains at least 0.01-1% water vapor by volume. The specified amount of water vapor decreases discharge voltage markedly. Water vapor is introduced between a sealing step and an evacuation step so that the gas-filled discharge spaces can finally contain a desired amount of water vapor.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: June 1, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kado, Kanako Miyashita
  • Patent number: 6707251
    Abstract: A flash discharge lamp includes a pair of electrodes i.e. an anode and a cathode, oppositely disposed in at both ends of the glass bulb. An electro-conductive member is provided on the outer surface of the glass tube. A triggering electrode is mounted on the cathode and electrically connected to the electro-conductive member. Xenon gas is sealed in the glass tube. The flash discharge lamp further includes at least one High Temperature Resistant electrode mounted on the cathode and at least one Getter electrode mounted on the cathode and/or the anode. Not only can the above design increase the discharge output power and the discharge frequency, but it also extends the life expectancy of the flash discharge lamp.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 16, 2004
    Inventors: Shing Cheung Chow, Lap Lee Chow
  • Patent number: 6703784
    Abstract: A microcavity plasma discharge device comprising a micro-cavity device structure which includes N dielectric material structures wherein N is a whole number greater than or equal to one, each N dielectric material structure including a dielectric spacer region with a first opening wherein the dielectric spacer region is sandwiched therebetween a first dielectric material region with a second opening and a second dielectric material region with a third opening wherein the second opening and the third opening are positioned adjacent to the first opening to form a trench with a width and wherein a first conductive material layer is sandwiched between the dielectric spacer region and the first dielectric material region and a second conductive material layer is sandwiched between the dielectric spacer region and the second dielectric material region.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: March 9, 2004
    Assignee: Motorola, Inc.
    Inventor: Paul A. Vonallmen
  • Patent number: 6696781
    Abstract: A silent discharge lamp which comprises a discharge vessel filled with a gas fill, a plurality of electrodes divided into separately operable groups, a dielectric layer between at least one anode part of the electrodes and the gas fill, and a luminescent layer which has elementary luminescent surfaces of at least two respective luminescent colors. Each elementary luminescent surface is assigned to a different electrode group. The electrode groups and the elementary luminescent surfaces are in each case two-dimensionally interleaved relative to one another so that the light emission surface of the gas discharge lamp can essentially be lit using each electrode group on its own, and the gas discharge lamp is designed so that it is possible to control the color of the light emission by controlling simultaneous operation of the electrode groups.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: February 24, 2004
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Udo Custodis, Angela Eberhardt
  • Publication number: 20040027068
    Abstract: An electrode pair structure of a plasma display panel (PDP). The electrode pair structure includes a first metal electrode, and a second metal electrode in parallel with the first metal electrode, installed on a front substrate. The first metal electrode and the second metal electrode are both composed of a series of hollow and hexagonal metal structures.
    Type: Application
    Filed: April 14, 2003
    Publication date: February 12, 2004
    Inventors: Yu-Ting Chien, Jih-Fon Huang
  • Patent number: 6686897
    Abstract: A plasma display panel having scanning electrodes (Y) and sustaining electrodes (X) arranged in the form of XX-YY-XX-YY . . . , a rib structure vertically crossing the scanning electrodes (Y) and sustaining electrodes (X). The priming discharges during reset period does not occur in the display areas of the plasma display panel, the picture quality is assured from avoiding the emission of over-brightness in the reset period which enables the sequential gaseous discharge operations to proceed with smaller driving voltage.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: February 3, 2004
    Assignee: AU Optronics Corp.
    Inventors: Jih Fon Huang, Shin-Tai Lo
  • Patent number: 6686698
    Abstract: A PDP apparatus in which degradation in image quality such as display missing points does not occur, even if the peak luminance is increased, has been disclosed. In the PDP apparatus, the display load ratio of each subfield is detected and a sustain pulse cycle is changed according to the display load ratio of each subfield. Moreover, an adaptive sustain pulse number change means is provided, which calculates the total amount of variations in time by summing the variations in time in a display field caused by the changes in the sustain pulse cycles and increases/decreases the number of sustain pulses of each subfield according to the total amount of variations in time.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: February 3, 2004
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Masanori Takeuchi, Toshio Ueda, Shigeharu Asao