With Shield Or Additional Electrode Patents (Class 313/492)
  • Patent number: 6858878
    Abstract: A light shield film is provided adjacent to an anode of an EL element that consists of the anode, an EL layer, and a cathode. The anode and the cathode are transparent or semitransparent to visible light and hence transmit EL light. With this structure, ambient light is absorbed by the light shield film and does not reach an observer. This prevents an external view from appearing on the observation surface.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: February 22, 2005
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Patent number: 6853126
    Abstract: Disclosed is an electron-emitting device, an electron source, and an image-forming apparatus that have uniform electron-emitting characteristics, emit electron beams whose diameters are small, have simple constructions, and are easy to be manufactured. The electron-emitting device comprising: a first electrode arranged on a surface of a substrate; an insulating layer arranged on the first electrode; a second electrode arranged on the insulating layer; and an electron-emitting film arranged on the second electrode, where the second electrode has two side surfaces that oppose each other in a direction parallel to the surface of the substrate, and the electron-emitting film is arranged so as to be shifted toward one of the two side surfaces.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: February 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazushi Nomura
  • Publication number: 20040251811
    Abstract: For absorbing a high voltage when an abnormal discharge is generated between an anode and another electrode, between an anode ADE and a control electrode G1, a surge current absorbing electrode G2 which has a plurality of electron beam passing holes AHL which allow electron beams to pass therethrough is arranged, and a DC bias power source DCG and a spark gap SG are connected in parallel between the surge current absorbing electrode G2 and a ground surface.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 16, 2004
    Inventors: Tomoki Nakamura, Yoshiyuki Kaneko
  • Patent number: 6821009
    Abstract: A light source device is provided which can output a plurality of lights by using a plurality of light transmitting media, and which can supply light of a sufficient intensity to the respective light transmitting media. An organic EL element, which is formed by successively layering a transparent electrode layer serving as an anode, an organic compound layer including a light-emitting layer, and a metal electrode layer serving as a cathode, is provided on the side surface of a fiber which propagates, in an axial direction, light from the organic EL element which has been introduced into an interior of the fiber. A plurality of the fibers are arranged in an array form and fixed by a conductive binder, and then sandwiched between two common electrode plates. Common voltage can be applied collectively to the organic EL elements of the plural fibers. Further, a transparent electrode exposed portion is provided at a light input side end portion of each fiber.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: November 23, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Ohkubo
  • Publication number: 20040160182
    Abstract: A low-pressure discharge lamp is described having a base housing (10), a discharge vessel (2), whose end sections are fixed to an end section of the base housing, and a contact-making system for making electrical contact with the lamp, which is located on the end section of the base housing (10) which is remote from the discharge vessel, a conductive section (5) being provided, which is electrically connected to the contact-making system and is arranged adjacent to the discharge vessel (2) in the base housing (10) in such a way that an electrical short circuit is formed around the discharge vessel (2). This makes it possible to reduce the starting voltage of the lamp. As an alternative, or in addition, to this, the cross section of the web attachments is increased, which also increases the rate of the luminous-flux run-up.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Inventors: Achim Hilscher, Thomas Noll
  • Publication number: 20040130257
    Abstract: Low-pressure mercury vapor discharge lamp comprising a discharge vessel (10) having a first and a second end portion (12a, 12b), the discharge vessel (10) containing mercury and a rare gas, wherein the end portions (12a, 12b) each support an electrode (20a,20b) arranged in the discharge vessel (10) for initiating and maintaining a discharge in the discharge vessel (10), wherein an electrode shield (22a,22b) substantially encompasses at least one of the electrodes (20a,20b), and wherein said electrode shield (22a,22b) comprises an inner wall (23a) and an outer wall (24a), said walls (23a,24a) being spaced apart.
    Type: Application
    Filed: November 4, 2003
    Publication date: July 8, 2004
    Inventors: Peter Arend Seinen, Josephus Theodorus Van Der Eyden
  • Patent number: 6756723
    Abstract: A fluorescent lamp having a stem provided with first and second lead wires for energization of an electrode and an electrically-insulating member provided therein with a first hole and a second hole larger in cross-sectional area than said second lead wire. The first and second lead wires are inserted in the first and second holes of the electrically-insulating member, respectively, and an outer diameter of a glass envelope of the fluorescent lamp is not smaller than 13 mm and not larger than 29 mm.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: June 29, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Mamoru Fukushima, Yasuo Kobayashi, Soichiro Ogawa
  • Patent number: 6744202
    Abstract: In order to provide an AC type plasma display panel having improved luminous efficiency, small power consumption and high luminance, sustaining electrodes (14a, 14b) of the AC type plasma display panel take in the form of mesh electrodes each having a plurality of openings (13). Each opening (13) is a strip-shaped opening having a size included in a rectangular area having one of sides thereof smaller than 30 &mgr;m or having a width smaller than 30 &mgr;m.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: June 1, 2004
    Assignee: NEC Corporation
    Inventors: Akifumi Okigawa, Tetsuji Okajima
  • Patent number: 6741023
    Abstract: An electrode shield for a fluorescent tanning lamp comprising an open cup encircling a filament or electrode increasing the service life of the fluorescent tanning lamp. The cup having an open end acts as a shield reducing the sputtering of impurities onto the glass tube and contaminating the phosphor surface. In one embodiment, the cup is electrically and thermally coupled to an electrode support. The life of the fluorescent tanning lamp is greatly increased despite the use of relatively high currents and large number of on and off cycles.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: May 25, 2004
    Assignee: Light Sources, Inc.
    Inventor: Arpad Pirovic
  • Patent number: 6677620
    Abstract: An organic EL element includes a light-transmitting glass substrate, an organic electroluminescence (EL) layer, a frame, a sealing cap, and an adhesive. The organic EL layer is formed on an element formation region of the substrate. The frame is formed on the substrate to surround the element formation region. The frame has a flat upper surface that has absorbed a three-dimensional shape on a surface of the substrate. The sealing cap is to be fixed to an upper surface of the frame. The adhesive adheres the frame and the sealing cap to each other. The adhesive is set at a temperature lower than a heat resistant temperature of the organic EL layer. A method of manufacturing the organic EL element is also disclosed.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: January 13, 2004
    Assignee: NEC Corporation
    Inventors: Ikuko Ishii, Yuji Kondo
  • Patent number: 6650042
    Abstract: A low-wattage fluorescent lamp is provided. The lamp has at least one mercury cold spot region effective to maintain the mercury in the lamp at less than 30° C., preferably 25° C., in an enclosed lamp fixture. The lamp also features a reduced distance between electrodes resulting in less power being required to sustain an electric arc discharge during operation of the lamp. The lower power electric arc generates less heat to raise the temperature of mercury vapor within the lamp.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: November 18, 2003
    Assignee: General Electric Company
    Inventor: Edward E. Hammer
  • Patent number: 6650041
    Abstract: An amalgam assembly for a fluorescent lamp includes a glass exhaust tubulation extending toward a base portion of the lamp, the tubulation being closed at an end thereof adjacent the lamp base portion, and a retaining structure disposed in the tubulation and retained by a pinched portion of the tubulation. A mercury amalgam body is disposed in the tubulation between the retaining structure and the tubulation closed end. The amalgam body includes lithium for wetting internal surfaces of the glass tubulation to cause the amalgam to adhere to the tubulation internal surfaces when the amalgam body is liquidized, and to thereby prevent the amalgam from flowing past the retaining structure and into the lamp envelope.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 18, 2003
    Assignee: Osram Sylvania Inc.
    Inventors: Richard S. Speer, Joseph E. Lester
  • Patent number: 6646365
    Abstract: A low-pressure mercury-vapor discharge lamp has a discharge vessel with a filling of mercury and an inert gas. Electrodes in the discharge space have electrode shields, which operate at temperatures above 450° C. An inner surface of the electrode shield may have a heat-absorbing coating, for example a carbon film. The electrode shield may be supported by a support wire, at least a part of which is made from stainless steel. A lamp according to the invention has comparatively low mercury consumption.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: November 11, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Cornelis Johannes Maria Denissen, Cornelis Reinder Ronda, Volker Ulrich Weiler, Klaus Gawron
  • Patent number: 6630787
    Abstract: A low-pressure mercury-vapor discharge lamp is provided with a discharge vessel and a first and a second end portion (12a). The discharge vessel encloses a discharge space provided with a filling of mercury and an inert gas in a gastight manner. Each end portion (12a) supports an electrode (20a) arranged in the discharge space. An electrode shield (22a) encompasses the electrodes (20a) and, according to the invention, carries an electric current during operation, and is at a temperature ≧250° C., preferably ≧450° C., during nominal operation of the discharge lamp. Preferably, a first current supply conductor (30a) electrically contacts a first current divider (23a), which is electrically connected to a second current divider (23a′) via a shell-shaped body (24a).
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: October 7, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Adrianus Johannes Hendricus Petrus Van Der Pol, Peter Arend Seinen
  • Patent number: 6621232
    Abstract: A field emission display includes a first substrate; a plurality of gate electrodes formed on the first substrate in a predetermined pattern; an insulation layer formed covering the gate electrodes over an entire surface of the first substrate; a plurality of cathode electrodes formed on the insulation layer in a predetermined pattern, a plurality of emitters formed on the cathode electrodes; a plurality of counter electrodes formed on the insulation layer at a predetermined distance from the emitters and in a state of electrical connection to the gate electrodes, the counter electrodes forming an electric field directed toward the emitters; a second substrate provided at a predetermined distance from the first substrate and sealed in a vacuum state with the first substrate; an anode electrode formed on a surface of the second substrate opposing the first substrate; and a plurality of phosphor layers formed over the anode electrode in a predetermined pattern.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: September 16, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Ho Jo, You-Jong Kim, Sang-Jo Lee, Jae-Cheol Cha, Jong-Min Kim
  • Patent number: 6608333
    Abstract: An organic light emitting diode (OLED) device. The OLED device comprises a transparent substrate, a plurality of anodes, an organic functional layer, a black layer and a plurality of cathodes. The anodes are positioned over a transparent substrate. The organic function layer is positioned over the transparent substrate covering the anodes. The black layer is positioned over the organic functional layer and the cathodes are positioned over the black layer. Through the black layer, the amount of back reflection of external light is reduced and the contrast of the display device is increased.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: August 19, 2003
    Assignee: RiTdisplay Corporation
    Inventors: Yung-Chih Lee, Chi-Chih Liao, Jiun-Haw Lee, Mei-Ying Chang
  • Patent number: 6583554
    Abstract: A flat luminescent lamp and a method for manufacturing the same are disclosed, in which light weight and high luminance can be obtained and discharge efficiency can be maximized. The flat luminescent lamp includes first and second substrates each having a plurality of concave and convex portions on an opposing surface, first and second electrodes alternately formed in the convex portions on the first substrate at constant intervals, a dielectric layer formed on the first substrate including the first and second electrodes, and first and second phosphor layers respectively formed on the dielectric layer and the second substrate.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 24, 2003
    Assignees: LG. Philips LCD Co., Ltd., Sang Nong Enterprise Co., Ltd.
    Inventor: Jae Man Lee
  • Patent number: 6566817
    Abstract: A high intensity discharge (HID) lamp includes a starting gas, a vaporizable fill, and only one electrode sealed within a light transmissive envelope. The one electrode produces a high intensity discharge during operation of the lamp and is connected to an inlead that extends outside the sealed envelope. A ground for electric field lines emanating from the electrode during operation of the lamp is outside the envelope. The ground may be a reflector for the lamp that has an electrically conductive surface. The high intensity discharge is initiated by applying high frequency power to the inlead.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 20, 2003
    Assignee: Osram Sylvania Inc.
    Inventor: Walter P. Lapatovich
  • Patent number: 6538383
    Abstract: A high-pressure mercury lamp includes an arc tube, and a pair of electrodes is provided in a discharge space of the arc tube. In the discharge space, mercury and xenon gas are sealed. The amount of mercury per unit volume that is to be sealed in the discharge space is within a range of 0.12 mg/mm3 to 0.35 mg/mm3. A pressure of the xenon gas in the discharge space is within a range of 2.0×105 Pa to 2.0×106 Pa.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: March 25, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Nobuyoshi Takeuchi
  • Publication number: 20030011297
    Abstract: An electrode shield for a fluorescent tanning lamp comprising an open cup encircling a filament or electrode increasing the service life of the fluorescent tanning lamp. The cup having an open end acts as a shield reducing the sputtering of impurities onto the glass tube and contaminating the phosphor surface. In one embodiment, the cup is electrically and thermally coupled to an electrode support. The life of the fluorescent tanning lamp is greatly increased despite the use of relatively high currents and large number of on and off cycles.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 16, 2003
    Inventor: Arpad Pirovic
  • Patent number: 6476554
    Abstract: A plasma display comprises a front panel, a rear panel, and, arranged therebetween, a number of gas-containing plasma cells separated from each other by partitions. The plasma cells each comprise a plasma region between two discharge electrodes and means arranged between the discharge electrodes for locally substantially narrowing the plasma region.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: November 5, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Rob Snijkers, Markus Klein
  • Publication number: 20020158567
    Abstract: A self-ballasted electrodeless discharge lamp includes a discharge vessel having a cavity, an induction coil that is inserted into the cavity, a ballast for supplying power to the induction coil, a case for covering the ballast, and a lamp base provided in the case. The discharge vessel is secured to the case via a holder. A part of the discharge vessel and a first portion of the holder are engaged with each other to constitute a combination structure. A second portion of the holder and a part of the case are engaged with each other to constitute a combination structure.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 31, 2002
    Inventors: Takeshi Arakawa, Mitsuharu Kawasaki, Kiyoshi Hashimotodani, Kenichiro Takahashi, Koji Miyazaki, Katsushi Seki, Toshiaki Kurachi, Kenji Itaya
  • Patent number: 6472815
    Abstract: A fluorescent luminous device which is capable of eliminating arrangement of independently controllable control electrodes and a power supply for applying a negative potential to the control electrodes. A plurality of anode chains and a plurality of filamentary cathodes are arranged in a manner to correspond to each other. A potential across the cathodes is changed over between a zero or negative potential and a positive potential to control the anode dots.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: October 29, 2002
    Assignee: Futaba Corporation
    Inventors: Kinya Ueda, Yukihiko Shimizu, Masao Saito, Satoshi Yamaguchi, Yoichi Kobori, Hiroshi Yamaguchi
  • Patent number: 6445118
    Abstract: A fluorescent lamp of the present invention includes: a first electrode section having a first filament; a second electrode section having a second filament; a fluorescent tube in which a fluorescent substance Is applied on an inner wall of the fluorescent tube; a first structure of a nonconductor provided in the fluorescent tube: and a second structure of a conductor provided in the fluorescent tube. The first structure and the second structure are provided between the first filament and the second filament.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: September 3, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masanori Shimizu, Kazuaki Ohkubo, Takeshi Arakawa, Yoshinori Tanabe, Kenjiro Hashimoto, Yoko Shimomura
  • Patent number: 6445121
    Abstract: The discharge vessel encloses a discharge space provided with a filling of mercury and a rare gas in a gastight manner. Each end portion (12a) of the lamp supports an electrode (20a) arranged in the discharge space. An electrode shield (22a) encompasses at least one of the electrodes (20a) and has a substantially spiral-shaped cross-section. Preferably, the electrode shield (22a) is made from a ceramic material and is covered with a material which reacts with or forms an alloy with alkaline earth metals released by the electrode (20a).
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: September 3, 2002
    Assignee: Koninkl√ľke Phillips Electronics NY
    Inventors: Johannes H. Roes, Adrianus J. H. P. Van Der Pol
  • Patent number: 6429832
    Abstract: A plasma display panel (PDP) has a plurality of scanning electrodes and a plurality of common electrodes extending in a row direction, a plurality of data electrodes extending in a column direction, and a ground electrode disposed adjacent to the data electrodes for canceling the electromagnetic radiation from the data electrodes during a write period of the PDP.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: August 6, 2002
    Assignee: NEC Corporation
    Inventors: Takashi Harada, Toshihide Kuriyama, Yoshizumi Sekii
  • Patent number: 6407503
    Abstract: A three-electrode AC type plasma display panel has an array of display cells each including therein pair of scanning electrode and common electrode extending in perpendicular to a data electrode. The capacitance of the insulating film disposed between the scanning electrode and the data electrode is higher than the capacitance of the insulating film disposed between the common electrode and the data electrode, whereby stable discharge can be obtained between the scanning electrode and the data electrode while suppressing discharge between the common electrode and the data electrode. The difference in the capacitance is obtained by a configuration of a dielectric film, fluorescent film or the data electrode.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: June 18, 2002
    Assignee: NEC Corporation
    Inventor: Eishi Mizobata
  • Patent number: 6369504
    Abstract: A low pressure mercury vapor discharge lamp including a discharge tube filled with rare gas and mercury, a base provided at the both ends of the discharge tube and surrounding an electrode sealing portion, and a caulking terminal planted in the base and having a tip inside the base, wherein the base includes electric wiring and at least one of the electric wiring is connected to the caulking terminal to provide an electric connection inside the base. Thus, the position of the caulking terminal is fixed and the automation in the caulking connecting process is realized. Furthermore, after caulking connection, adhesives for adhering the caulking terminal to the inside of the base are not required, thus improving the operation property and productivity by reducing the number of steps and the material cost.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: April 9, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Itaya, Takeshi Matsumura
  • Publication number: 20020008463
    Abstract: A number of light-emitting fibers in side-by-side array comprise a display which may be employed alone or with other like displays. Each fiber includes a number of light-emitting elements disposed along an optical fiber, such as an electroluminescent material, e.g., an OLED material, disposed between hole injecting and electron injecting electrodes. Contacts to both the hole injecting and electron injecting electrodes are on the same surface of the fiber. A printed circuit board has plural parallel conductors that connect to respective contacts for the hole injecting and electron injecting electrodes on the light-emitting fibers, such as by solder, conductive adhesive and the like.
    Type: Application
    Filed: June 7, 2001
    Publication date: January 24, 2002
    Inventor: William R. Roach
  • Publication number: 20010028214
    Abstract: There is provided a cold cathode fluorescent lamp including a transparent tube including first and second light-emitting areas defined by partitioning an inner space of the transparent tube, a first terminal electrode positioned in the first light-emitting area and at a longitudinal end of the first light-emitting area located closer to an end of the tube, a second terminal electrode positioned in the second light-emitting area and at a longitudinal end of the second light-emitting area located closer to the other end of the tube, a first intermediate electrode positioned in the first light-emitting area and at the other longitudinal end of the first light-emitting area, a second intermediate electrode positioned in the second light-emitting area and at the other longitudinal end of the second light-emitting area, a first lead-in wire connected to the first terminal electrode through the longitudinal end of the first light-emitting area, a second lead-in wire connected to the second terminal electrode through
    Type: Application
    Filed: June 7, 2001
    Publication date: October 11, 2001
    Applicant: NEC CORPORATION
    Inventor: Kazushi Fujimoto
  • Patent number: 6297591
    Abstract: An arc lamp comprising a hollowed-anode electrode with an arc-face having a central hole extending to an internal chimney. An opposing cathode electrode faces the hollowed anode electrode for providing a short electric arc around the central hole in the arc-face of the hollowed anode electrode. The anode and cathode electrodes are disposed in an inert gas, such as xenon. The internal gas is subject to an “arc wind” for transporting metal deposits downstream of the short electric arc and flowing from the short electric arc down the chimney. Such operation provides for an improvement in arc lamp life because the reflector blackens far less rapidly. A magnetic z-pinch pumping mode can be used to move the arc wind away from the reflector.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: October 2, 2001
    Assignee: ILC Technology, Inc.
    Inventor: Roy D. Roberts
  • Patent number: 6274981
    Abstract: A low-pressure mercury vapor discharge lamp is provided with a discharge vessel and a first and a second end portion (12a). The discharge vessel encloses a discharge space provided with a filling of mercury and a rare gas in a gastight manner. Each end portion (12a) supports an electrode (20a) arranged in the discharge space. An electrode shield (22a) encompasses the electrodes (20a) and is covered with a material which reacts with or forms an alloy with alkaline earth metals, which material is released by the electrode (20a).
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: August 14, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Cornelis R. Ronda, Cornelis J. M. Denissen, Volker U. Weiler, Wilhelm A. Groen, Wilhelmus M. P. Van Kemenade, Bennie J. De Maagt
  • Patent number: 6268694
    Abstract: There is provided a cold cathode fluorescent lamp including a transparent tube including first and second light-emitting areas defined by partitioning an inner space of the transparent tube, a first terminal electrode positioned in the first light-emitting area and at a longitudinal end of the first light-emitting area located closer to an end of the tube, a second terminal electrode positioned in the second light-emitting area and at a longitudinal end of the second light-emitting area located closer to the other end of the tube, a first intermediate electrode positioned in the first light-emitting area and at the other longitudinal end of the first light-emitting area, a second intermediate electrode positioned in the second light-emitting area and at the other longitudinal end of the second light-emitting area, a first lead-in wire connected to the first terminal electrode through the longitudinal end of the first light-emitting area, a second lead-in wire connected to the second terminal electrode through
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: July 31, 2001
    Assignee: NEC Corporation
    Inventor: Kazushi Fujimoto
  • Patent number: 6266033
    Abstract: A plasma display device includes a plurality of discharge cells each having substrates, and at least two electrodes formed on the substrates, for generating a discharge therebetween, and a shielding electrode formed between the electrodes respectively positioned in the neighboring cells, for shielding crosstalk generated between the electrodes of the neighboring cells.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: July 24, 2001
    Assignee: Samsung Display Device Co., Ltd.
    Inventor: Dae-il Kim
  • Publication number: 20010008361
    Abstract: In a simple and slim double-faced vacuum fluorescent display device having no grid with low power consumption and low fabrication cost, in order to turn on fluorescent layers P111 to P141 of segments D11 to D14 in an anode electrode set D1 on a back plate S2, 12V, 0V, 0V and −12V are applied to the segments D11 to D14 in the anode electrode set D1 on the back plate S2, the other segments on the back plate S1, segments C11 to C15 in an anode electrode set C1 on a front plate S2 and the other segments on the front plate S1, respectively. In order to turn on segments C12 and C16 in the anode electrode set C1 on the front plate S1, 12V, 0V, 0V and −12V are applied to the segments C12 and C16 in the anode electrode set C1 on the front plate S1, the other segments on the front plate S1, the segments D1 to D14 on the back S2 and the other segments on the back plate S2, respectively.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 19, 2001
    Applicant: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Yukio Ogawa, Kazuyoshi Ishikawa, Katsutoshi Kougo, Yoshikazu Iidaka, Hiroaki Kawasaki
  • Patent number: 6262532
    Abstract: A plasma display device includes a rear substrate (21); first electrodes (22) on an upper surface of the rear substrate (21) in a pattern; second and third electrodes (24, 25) spaced from the first electrodes (22) by a distance, parallel to each other and perpendicular to the direction of the first electrodes (22); auxiliary electrodes (26), parallel to each other and between the second and third electrodes (24, 25), which are electrically floated; a dielectric layer (23) on the upper surface of the rear substrate (21) covering the first electrodes (22), and in which the second electrodes (24), the third electrodes (25), and the auxiliary electrodes (26) are embedded and electrically insulated from one another; and a front substrate (30) supported by the rear substrate (21) and defining a discharge space.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: July 17, 2001
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Deuk-il Park, Jong-seo Choi, Kyu-nam Joo
  • Patent number: 6252348
    Abstract: In one aspect, the invention encompasses a field emission display device. The device comprises a base plate and a face plate which is over and spaced from the base plate. The device further comprises emitters associated with the base plate and phosphor associated with the face plate. Additionally, the device comprises a reflector associated with the base plate and having an upper reflective surface. In another aspect, the invention encompasses a method of forming a field emission display device. A base plate is provided, and a pair of spaced emitter-containing regions are provided over the base plate. A reflector is formed over the base plate and between the spaced emitter-containing regions. A face plate is provided, and a pair of spaced phosphor-containing masses are formed in association with the face plate. The face plate and base plate are joined to one another with the face plate being aligned over the base plate and spaced from the base plate.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 26, 2001
    Assignee: Micron Technology, Inc.
    Inventor: John Kichul Lee
  • Patent number: 6246171
    Abstract: A gas discharge lamp having a discharge vessel (202) which is at least partially transparent and filled with a gas filling, a number of essentially strip-shaped anodes (205, 206) and cathodes (203, 204) which extend on the walls of the discharge vessel and essentially parallel to each other, and a dielectric layer (215) between at least the anodes and the gas filling for a dielectrically impeded discharge in the discharge vessel between neighboring anodes and cathodes, characterized in that at least one anode pair (205) is arranged between two cathodes (203, 204) respectively adjacent to one anode pair.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: June 12, 2001
    Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke, Jens Muecke, Rolf Siebauer, Simon Jerebic
  • Patent number: 6121728
    Abstract: A fluorescent lamp includes a bulb, a fluorescent material coated on an internal surface of the bulb, a stem, a discharge chamber filled with gas and mercury, a thermal cathode filament coated with electron emitting material, an anode, a pair of lead wires passing air-tightly through the stem and supporting the thermal cathode filament, and a lead wire supporting the anode. The anode is a substantially rectangular plate, and is substantially parallel to the thermal cathode filament in a cross sectional view taken along a bulb axis Z. The thermal cathode filament and the rectangular anode plate can be configured of an angle range of 30-60 degrees in a cross sectional view perpendicular to the lamp axis Z. The rectangular anode plate and the lead wire supporting the anode can be attached to each other in a substantially flag-shaped configuration. The invention produces a smaller discharge spot to improve thermal electron emission efficiency such that efficiency of the fluorescent lamp is improved.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: September 19, 2000
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Kouji Kikuchihara, Hisataka Kondo, Tsuneyoshi Shibasaki
  • Patent number: 6097152
    Abstract: A composite glow discharge lamp having an elongated glass tube, in which an electrode assembly is located in said elongated glass tube at each of opposite ends thereof, the electrode assembly comprising a center electrode for emitting electrons and a glow electrode surrounding the center electrode, and the glow electrode being formed of an enclosure having an opening and a closed bottom and laid so that the opening faces the opposite end of the glass tube which is near thereto, and the closed bottom faces the longitudinally middle part of the glass tube, thereby it is possible to prevent blackening of the glass tube, and to prolong the use life of the composite discharge lamp.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 1, 2000
    Assignee: Tokyo Densoku Kabushiki Kaisha
    Inventor: Yoriyuki Nieda
  • Patent number: 6049164
    Abstract: A discharge vessel (10) encloses a discharge space (12) in a gastight manner, electrodes (21a, 21b) being arranged in the space and having a first (22a, 22b) and a second fastening (22a', 22b'). At least one of the electrodes (21a) is surrounded by a screen (23) which has a smallest width W, in a plane transverse to the tube axis (11) and transverse to the direction from the first (22a) to the second fastening (22a'), which width is smaller than the distance D between the fastenings (22a, 22a'). The screen (23a) has a length L in the direction of the tube axis (11) which lies between once and three times the smallest width W. The lamp consumes comparatively little mercury in the case of cold ignition.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: April 11, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Wilhelmus M. P. Van Kemenade, Pieter J. C. Van Der Wel
  • Patent number: 6045721
    Abstract: A barium magnesium aluminate phosphor having improved maintenance and efficiency is provided. The novel phosphor is suitable for use in conventional fluorescent lamp applications and applications utilizing VUV excitation, including Xe excimer lamps and plasma display panels.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: April 4, 2000
    Assignee: Patent-Treuhand-Gesellschaft fur Elekrische Gluhlampen mbH
    Inventors: Martin Zachau, Dieter Schmidt, Ulrich Mueller, Charles F. Chenot
  • Patent number: 5990620
    Abstract: A miniature high resolution plasma display suitable for integration on a semiconductor chip in combination with other circuitry is comprised of two crossed sets of conductors which are arranged on a first substrate to form an array of crosspoints. The two conductors at each crosspoint are a preselected distance apart and separated by a hollow cavity. An array of vertical tubes in a second substrate is spaced so as to correspond to the array of crosspoints. The second substrate is supported in alignment with the first so that the open end of the tubes oppose the cavity at each crosspoint. The tubes and cavities are filled with a pressurized gas and the assembly is sealed with a transparent, electrically conducting coverplate. When a voltage greater than or equal to the Paschen minimum firing voltage is applied across the cavity at a crosspoint, a plasma is created. Ions in the plasma spread from the cavity into the tube in response to a voltage that is applied to the cover plate.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: November 23, 1999
    Inventor: Martin P. Lepselter
  • Patent number: 5977702
    Abstract: A tubular glow discharge electrode is formed therein with a slot in which front end parts of support leads are inserted. The slot has a widened center part which defines an opening. The tube-like glow discharge tube is welded at its one end part to one of the support lead so as to be electrical conductive to the same, and is caulked at it's the other end part to the other one of the support leads through the intermediary of an insulator. A filament electrode (ark discharge electrode) carrying an electron-emissive substance is supported to the free end parts of the support leads within the tube-like glow discharge electrode which therefore surrounds the arc discharge electrode with a small gap defined between the glow discharge electrode and the filament electrode.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 2, 1999
    Assignee: Technett Co., Ltd.
    Inventor: Yoriyuki Nieda
  • Patent number: 5973449
    Abstract: A cold-cathode discharge display device which includes a fluorescent tube and electrodes containing R.sub.2 O.sub.3-z, where R is an atom or an atom group of rare earth elements, O is oxygen, and z is 0.0 to 1.0, to perform field emission of electrons and emission of secondary electrons. The electrodes are generated with an electron emitting film containing rare earth elements.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: October 26, 1999
    Assignees: Casio Computer Co., Ltd., Stanley Electric Co., Ltd.
    Inventors: Osamu Nakamura, Shigemi Suzuki
  • Patent number: 5962972
    Abstract: The electric incandescent lamp has a lamp vessel (1) in which a filament (3) is disposed substantially concentric with the longitudinal axis (2) of the lamp vessel (1). Current conductors (4) extend from the lamp vessel (1), an internal conductor (10) part of which is substantially concentrically with the axis (2) and has an end portion (11) having unround cross-sections (12). An end portion (6) of the filament (3) is wound onto the unround cross-sections (12) of a respective internal conductor (10) to constitute clamping windings (5). The lamp is of a simple construction to obtain reliably a concentrically mounted filament.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: October 5, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Gilbert Engels, Gregorius W. A. J. Brabers
  • Patent number: 5962973
    Abstract: A dual-filament reflective infrared bulb has high and low beam filaments in spaced adjacency along a longitudinal bulb axis. A longitudinal envelope structure encloses each filament in a separate substantially ellipsoidal chamber. The outer surface of the envelope structure is coated with dichroic layers and provides focused reflectance of infrared radiation back onto the filaments. The common ground lead of the assembly passes through one of the chambers substantially off of the longitudinal axis and thereby off of the focal axis of the infrared radiation. A lead emanates out of one longitudinal end of the envelope structure and is formed to return in spaced adjacency toward the opposite longitudinal end. A bulb shield is fastened to the return portion of the lead and intermediate one of the chambers and the leads.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: October 5, 1999
    Assignee: Guide Corporation
    Inventor: Lawrence Marion Rice
  • Patent number: 5955840
    Abstract: A method and an apparatus for phototherapy or tanning of the human body utilizes energy most efficiently by generating incoherent excimer radiation in the wavelength bands of between 300 and 310 nm, preferably about 308 nm, and from 315 to 350 nm. A discharge space (4) is defined by a discharge vessel (3) of radiation transmissive dielectric material. A first electrode (5), preferably a mesh or a net jacket, surrounds the wall of the discharge vessel; a second electrode (7) covered by a second dielectric (8) is coaxially located within the discharge vessel. A fill of xenon halide, preferably xenon chloride with a cold-fill pressure of about 500 to 1,500 mbar is located within a discharge space (4). A voltage source (15) is connected to said first and second electrodes.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: September 21, 1999
    Assignee: Heraeus Noblelight GmbH
    Inventors: Erich Arnold, Friedel Maul, Alexander Dohn
  • Patent number: 5949180
    Abstract: A lamp apparatus for producing a beam of light that can be used as a part of a source for a projection system. The lamp apparatus of the present invention produces a beam of light originating from a small aperture. The apparatus includes an electrodeless lamp body in the form of elongated outer tube having a hollow interior. An inner sleeve fits or is deposited inside the outer tube, the inner sleeve having a fill containing generally cylindrically or spherical shaped bore. The sleeve provides temperature resistant and reflection properties. Electrodes positioned either internally or externally of the lamp body are provided for producing radio frequency energy that excite the fill contained in the bore of the inner sleeve to form a plasma light source of intense heat. The light thus generated by the plasma in a relatively large volume is constrained to exit through a small aperture at either one, or both, ends of the apparatus.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: September 7, 1999
    Assignee: Fusion Lighting, Inc.
    Inventor: Dale S. Walker
  • Patent number: 5907349
    Abstract: A fluorescent printer head capable of being subject to dynamic driving to reduce the number of ICs required. A shield electrode is provided between anode arrays having anode dots arranged in an offset manner and control electrodes are respectively arranged for the anode arrays. The anode arrays are subject to dynamic driving and selected by the control electrodes. Such construction of the fluorescent printer head ensures smooth selection of the anode arrays during the dynamic driving. Also, it eliminates non-uniformity in luminance of the anode dots of the anode arrays and accomplishes downsizing of the printer head and a reduction in manufacturing cost thereof due to a reduction in the number of ICs required.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: May 25, 1999
    Assignee: Futaba Denshi Kogyo K.K.
    Inventors: Yukihiko Shimizu, Masao Saito, Kinya Ueda