Flat Tube Type Patents (Class 313/422)
  • Patent number: 10176960
    Abstract: The present disclosure relates to devices and methods for enhancing the collection of charge carriers, such as electrons. Methods of manufacturing the devices are also disclosed. An electronic device can include a cathode, an anode, a gate electrode, and a focus electrode. The cathode can include a cathode substrate and an emitting region that is configured to emit an electron flow. The anode can include an anode substrate and a collection region that is configured to receive and/or absorb the electron flow. The gate electrode can be receptive to a first power source to produce a voltage in the gate electrode that is positively-biased with respect to the cathode. The focus electrode can be receptive to a second power source to produce a voltage in the focus electrode that is negatively-biased with respect to the gate electrode and/or the cathode.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: January 8, 2019
    Assignee: Elwha LLC
    Inventors: Heinz Hermann Busta, Richard M. Gorski, Max N. Mankin, Tony S. Pan
  • Patent number: 9412551
    Abstract: A cathode obtaining method includes producing a plurality of cathodes each including an electron emission member and a cover part, provided with a gap, which covers a side surface of the electron emission member, measuring an outer dimension of the upper surface of the electron emission member, for each of a plurality of cathodes, measuring an outer dimension of the gap at the same surface as the upper surface of the electron emission member, for each of a plurality of cathodes, calculating an area ratio by dividing the area of the gap, for each of a plurality of cathodes, obtaining an upper limit of the area ratio corresponding to a desired brightness by using a correlation between brightness and the area ratio, and selecting a cathode having the area ratio less than or equal to the upper limit from a plurality of cathodes that have been produced.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 9, 2016
    Assignee: NuFlare Technology, Inc.
    Inventors: Kenichi Saito, Ryoei Kobayashi
  • Patent number: 9408270
    Abstract: Provided is a lighting-on/off control circuit that can increase number of LEDs that can go on/off, without increasing number of control signal lines. It includes a control circuit outputting plural first and second signals, a first push-pull circuit receiving plural first signals, a second push-pull circuit receiving plural second signals, and an LED group capable of being connected in between one of outputs of first push-pull circuit and one of outputs of second one. When first signal has a first value and second signal has a second value, a first current flows from first to second push-pull circuit; when second signal has a first value and first signal has a second value, a second current flows from second to first push-pull circuit.
    Type: Grant
    Filed: October 31, 2015
    Date of Patent: August 2, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Minoru Shinba
  • Patent number: 9361318
    Abstract: The specification relates to the creation of an image space by receiving an initial image query. A plurality of search queries related to the initial search query are determined. Image results for the initial search query and the plurality of related search queries are obtained. A panel of images representing a number of images from the initial search query and panels of images representing a number of images from the plurality of related search queries are generated. These panels are used to provide an image space. The image space can be centered on the panel representing the resultant images related to the initial search query and can be surrounded by panels representing the resultant images related to the plurality of related search queries.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 7, 2016
    Assignee: Google Inc.
    Inventor: David Kogan
  • Patent number: 8542493
    Abstract: A flat display apparatus has a flat display panel; a frame that is installed on a rear face side of the display panel; a cover that covers at least a rear face side of the frame; and a high-voltage power supply that applies high voltage to the display panel. The high-voltage power supply has a plurality of cases, each of which encloses one or more transformers and rectifier circuits, and obtains high voltage by connecting the plurality of cases in series, and the plurality of cases are arranged in a space created between the frame and the cover so as to be disposed on a plane in parallel with a screen of the display panel.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Abe, Eisaku Tatsumi, Tatsuya Nakajima
  • Patent number: 8541961
    Abstract: The present invention is directed to an electron beam crossbar switch for interconnection between communication units. The crossbar switch includes an array of electrically charged particle emitter source devices with an input connected to a slow wave structure coupled to the emitter source. An array of detectors is positioned relative to the array of emitter devices for receiving charged particles from various of the emitter devices. X and y deflection means are positioned adjacent each of the emitters for directing the charged particles from each of the emitters to at least one of the detectors to provide more signal output and a reduction in deflection accuracy.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: September 24, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Thomas C. Hogan
  • Patent number: 7777196
    Abstract: An electron emitter for a display provides an electron source, an electron accelerator, an electron collector disposed between the electron source and the electron accelerator, and one or more electron deflectors to selectively deflect electrons in an electron beam or electron plane towards the electron collector phosphorous coating on a display screen, within a non-metallic vacuum chamber having an adjustable vacuum. Pinhead electrode electron deflectors may each control one color of a pixel, and each set of three adjacent pinhead electrodes may comprise a complete pixel on the display screen.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: August 17, 2010
    Inventor: Wesam Khalil
  • Patent number: 7772754
    Abstract: An electron emission display is provided to prevent electron beams around the spacers from being distorted and to prevent arc discharging due to the spacers. The electron emission display includes first and second substrates facing each other to form a vacuum vessel, an electron emission unit provided on the first substrate, a light emission unit provided on the second substrate, and a plurality of spacers disposed between the first and the second substrates. Each spacer has a spacer body with a surface roughness, a resistance layer placed on a lateral side of the spacer body, and a flattening layer covering the resistance layer. The flattening layer has a thickness larger than the thickness of the resistance layer and a surface roughness smaller than the surface roughness of the spacer body.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: August 10, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Hoon Lee, Hyeong-Rae Seon, Cheol-Hyeon Chang
  • Patent number: 7626325
    Abstract: An image display apparatus includes a front substrate, and a rear substrate opposed to the front substrate. The front substrate has phosphor layers, resistor layers provided between the phosphor layers, a metal-back layer divided into metal-back segments covering the phosphor layers and resistor layers at least in part, and spaced apart by gaps Gx in a first direction intersecting at right angles with a scanning direction and by gaps Gy in a second direction identical to the scanning direction, and a voltage-applying portion which applies a voltage on the metal-back segments. Rx(100)/Rx(1)<Ry(100)/Ry(1) is satisfied, where Rx(V) is a resistance between any two metal-back segments on the sides of a gap Gx, respectively, which is the function of voltage V [V], and Rx(V) is a resistance between any two metal-back segments on the sides of a gap Gy, respectively, which is the function of the voltage V [V].
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: December 1, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirotaka Murata, Keiji Suzuki
  • Patent number: 7619354
    Abstract: An image display apparatus includes a display panel with an aperture, an anode terminal for applying a voltage to the display panel through the aperture, and an anode cap, attached on an external surface of the display panel, for holding an electroconductive wire applying a voltage to the anode terminal. In addition, a fixing member has a through hole in which the anode terminal is inserted for fixing the anode cap at an inside portion of the anode cap. The anode cap includes a fastening portion detachably fastened to the fixing member within the anode cap.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: November 17, 2009
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Kinya Kamiguchi, Kazuhiro Ota
  • Patent number: 7553428
    Abstract: A method of fabricating spacers for use in a flat panel device includes: preparing a core glass having a low solubility in a chemical etching solution and a tube glass having a high solubility in the chemical etching solution and having a larger inner diameter than an outer diameter of the core glass; inserting the core glass into the tube glass to obtain a cylindrical glass; drawing the cylindrical glass at a predetermined temperature until the core glass has a predetermined diameter; cutting the drawn cylindrical glass to a predetermined length; and removing the tube glass in the cylindrical glass using the chemical etching solution.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: June 30, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Hee Lee, Tae-Won Jeong, Jeong-Na Heo
  • Patent number: 7402942
    Abstract: An electron emission device, and an electron emission display using the electron emission device, includes a substrate, electron emission regions formed on the substrate, driving electrodes formed on the substrate to control electron emissions of the electron emission regions, and a focusing electrode disposed above the driving electrodes and insulated from the driving electrodes, the focusing electrode having openings through which electron beams pass. The focusing electrode includes at least two focusing parts electrically separated from each other and the focusing parts focus the electron beams in different directions.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: July 22, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Hyun Lee, Seong-Yeon Hwang
  • Patent number: 7192327
    Abstract: An image display device includes a first substrate which has a phosphor surface, and a second substrate which is opposed to the first substrate with a gap and has a plurality of electron sources. A plurality of spacers are arranged between the first substrate and the second substrate and support an atmospheric load acting on the first and second substrates. Each of the spacers has distal end portions at the first and second substrates, respectively. The distal end portions of each spacer are impregnated with electrically conductive material and constitute conductivity-imparting portions.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: March 20, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shigeo Takenaka, Masaru Nikaido, Satoshi Ishikawa, Satoko Oyaizu
  • Patent number: 7176613
    Abstract: A fluorescent display tube is disclosed. In the fluorescent display tube, linear members, such as, for example, wire grids and filament are sustained in a predetermined height, while both ends of each linear member are welded on a metal layer by ultrasonic. The fluorescent display tube includes a metal spacer for fixing the linear member and holding the linear members in an elevated position so that the dead space within the fluorescent display is reduced. The linear members are bonded on an aluminum thin films formed on the glass substrate 111 by way of the aluminum spacer. The aluminum spacer sustains the linear members in a predetermined height. Aluminum spacer acts as a member for fixing the linear member and as a height level holding member.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: February 13, 2007
    Assignee: Futaba Corporation
    Inventors: Yoshihisa Yonezawa, Yukio Ogawa, Yasuhiro Nohara
  • Patent number: 7157849
    Abstract: A field emission display device includes: a first substrate; an electron emission assembly arranged on the first substrate; a second substrate arranged a predetermined distance from the first substrate, the first and second substrates forming a vacuum space; an illumination assembly arranged on the second substrate, the illumination assembly being illuminated by electrons emitted from the electron emission assembly; and a mesh grid and above the electron emission assembly.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: January 2, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyeong-Rae Seon, Cheol-Hyeon Chang, Dong-Su Chang, Dong-Wook Kim, Jae-Sang Ha
  • Patent number: 7154216
    Abstract: In order to ensure hermeticity of a hermetic container and to suppress occurrence of electrical leakage, a display device is provided with a faceplate including an anode to be supplied with an externally-supplied electric potential, a rear plate arranged facing the faceplate at a predetermined spacing therefrom, a metal pin for supplying the electric potential to the anode from outside of the rear plate through a penetration hole in the rear plate, wherein the penetration hole includes the metal pin by insertion. The metal pin includes an axis portion disposed in the penetration hole and a flange portion which is integral with this axis portion and which is located adjacent an opening end of the penetration hole. The flange portion is joined to the rear plate for hermetically sealing the penetration hole.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: December 26, 2006
    Assignee: Canon Kanushiki Kaisha
    Inventor: Kinya Kamiguchi
  • Patent number: 7145528
    Abstract: In a display device and a driving and controlling method therefor, in order to restrain the occurrence of an unsatisfactory display state or unsatisfactory luminescence in the case where an anode potential is made to transition from a supply state to a cut-off state in response to the generation of a display completing signal, when a display signal DS is generated at time t0, an anode potential Va is raised at time t1, and at time t2 until which a predetermined time Td2 passes after the anode potential Va decreases below a threshold potential Vth with a cut-off voltage applied between cathodes and an anode, the application of the cut-off voltage is completed.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: December 5, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeki Yabu, Takeo Tsukamoto
  • Patent number: 7129626
    Abstract: A pixel structure and an edge-emitter field-emission display device having a first substrate or backplate including a cathode disposed thereon and a second substrate or faceplate including an anode disposed thereon, wherein the anode on the second substrate or faceplate has a light emitting film. The cathode may define a first bus of an X-Y bus array and the anode may define a second bus of the X-Y bus array. Alternatively, the first substrate may further include a control gate disposed thereon, wherein the cathode defines a first bus of an X-Y bus array and the control gate defines a second bus of the X-Y bus array.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 31, 2006
    Assignee: Copytele, Inc.
    Inventors: Alexander Kastalsky, Sergey Shokhor, Frank J. DiSanto, Denis A. Krusos, Boris Gorfinkel, Nikolai Abanshin
  • Patent number: 7064478
    Abstract: The invention is a color cathode-ray tube having a rectangular front face connected to a funnel shaped rear part, a neck connected to the rear part and having an electron gun therein, the gun is used to generate beams intended to scan the front face under the influence of a deflection device placed on the neck of the tube. The deflection device comprising correction magnets placed on the periphery of the device in locations closest to the front face and a magnetic screen within the tube having an opening for passage of the electron beams, wherein the opening has notches in its periphery. The notches are arranged so as to face at least one pair of correction magnets.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: June 20, 2006
    Assignee: Thomson Licensing
    Inventors: Nacerdine Azzi, Céline Cossu, Mohamed Massaoudi, Sébastien Volatier
  • Patent number: 7012360
    Abstract: A CRT apparatus is composed of a CRT, a deflection yoke, a velocity modulation coil, and a magnetic member. The CRT includes a glass bulb made up of a panel and a funnel connected together and an electron gun housed within the glass bulb, and emits an electron beam from the electron gun toward a phosphor screen formed on an inner surface of the panel. The deflection yoke includes a horizontal deflection coil and a vertical deflection coil, and scans the electron beam over the phosphor screen. The velocity modulation coil is arranged outside the CRT, and modulates a velocity at which the electron beam is scanned horizontally. The magnetic member is arranged to surround an outer circumference of the CRT with the velocity modulation coil positioned therebetween, so as to cover a position corresponding to a space between axially aligned electrodes of the electron gun.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: March 14, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuyo Iwasaki, Kenichiro Taniwa
  • Patent number: 7005787
    Abstract: This invention is an improved processing method and structure for the packaging technique of a large size field emission display. A large size field emission display includes an indium-tin oxides (ITO) conducting glass substrate, which is covered by the first screen mask and the second screen mask defined to a BM layer area, a multi-phosphor layer area and a hollow area. Each area was coated to form an Al layer, which was formed an AlOx layer through a phosphor sintering process. The spacer was fixed in a hollow area of an AlOx layer through an anodic assembling technique. The next plate was fixed on the spacer to accomplish an aligner process.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: February 28, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Chun Hsiao, Cheng-Chung Lee, Yu-Yang Chang
  • Patent number: 7005085
    Abstract: Phosphor powders and a method for making phosphor powders. The powders are oxygen-containing, such as metal oxides, silicates, borates or titanates and have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the continuous production of such powders. The invention also relates to improved devices, such as display devices, incorporating the phosphor powders.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: February 28, 2006
    Assignee: Cabot Corporation
    Inventors: Mark J. Hampden-Smith, Toivo T. Kodas, James Caruso, Daniel J. Skamser, Quint H. Powell
  • Patent number: 6991507
    Abstract: A spacer on which static electricity is restricted and an electron beam apparatus in which the spacer is provided. In the electron beam apparatus comprising an electron source provided with electron emission devices, a face plate provided with anodes and spacers installed between the electron source and the face plate, unevenness is formed on the surface of the spacer substrate, and further a thin film which has a smaller thickness than a roughness. This makes possible the restriction of incident angle multiplication coefficient for the primary electrons whose energy is lower than the second cross-point energy of a resistive film. The electron beam apparatus provided with the above spacer is excellent in display definition and long-term reliability since the display of light emission points and the creeping discharge accompanying the static electricity can be restricted due to the spacer.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Hideaki Mitsutake
  • Patent number: 6992431
    Abstract: An image display device having a vacuum envelope which has a light transmissible panel, a funnel and a neck, its inside held vacuum, a phosphor layer is formed on the inside surface of the light transmissible panel, an electron gun is disposed within the neck. An antistatic film which contains high-resistance fine particles having a specific resistivity of 106 to 109 ?·cm is formed on inside wall of the neck. The image display device is free from deterioration of display characteristics caused by a change of the track of electrons emitted by the application of voltage, a spark in a tube, or a leakage current.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: January 31, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeo Ito, Tsuyoshi Oyaizu, Akira Mikami, Hitoshi Tabata
  • Patent number: 6967434
    Abstract: In order to ensure hermeticity of a hermetic container and to suppress occurrence of electrical leakage, a display device is provided with a faceplate including an anode to be supplied with an externally-supplied electric potential, a rear plate arranged facing the faceplate at a predetermined spacing therefrom, a metal pin for supplying the electric potential to the anode from outside of the rear plate through a penetration hole in the rear plate, wherein the penetration hole includes the metal pin by insertion. The metal pin includes an axis portion disposed in the penetration hole and a flange portion which is integral with this axis portion and which is located adjacent an opening end of the penetration hole. The flange portion is joined to the rear plate for hermetically sealing the penetration hole.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: November 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kinya Kamiguchi
  • Patent number: 6954027
    Abstract: The present invention relates to a flat panel display, and more particularly, to a flat panel display in which the main skeletal structure of a horizontal deflecting electrode is arranged in a horizontal direction to enhance structural strength and the structure of an electrode to which voltage is applied is shaped symmetric to eliminate over-converging of electron beam.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: October 11, 2005
    Assignee: LG. Philips Displays Korea Co., LTD
    Inventors: Sung Woo Ko, Nam Jae Koh, In Jue Kim
  • Patent number: 6927533
    Abstract: An electron beam apparatus including a hermetic container provided with an electron source, in which, when a first member is arranged in the hermetic container, at least part of the first member is coated with a film, and the film is configured in such a manner that it includes two regions, a first region and a second region different in electron density from the first region and the second region forms a network in the first region. This three-dimensional network structure allows a member being charged to be preferably controlled. Thereby, it is possible to control the effects of a member being charged which is used in an electron beam apparatus.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: August 9, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Hideaki Mitsutake
  • Patent number: 6900581
    Abstract: An electron-emitting device having favorable electron emitting characteristic stable for a long time, which is manufactured by a method comprising the steps of disposing an electrically conductive member having a second gap on a substrate, and applying a voltage to the electrically conductive member while irradiating at least the second gap with an electron beam from electron emitting means disposed apart from the electrically conductive member in an atmosphere comprising a carbon compound.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: May 31, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masafumi Kyogaku, Hironobu Mizuno, Takeo Tsukamoto, Hiroyuki Hashimoto, Koki Nukanobu
  • Patent number: 6900585
    Abstract: Disclosed is a color flat panel display comprising a rear glass, a rear electrode, a filament cathode for emitting electrons, a control electrode, a signal modulation electrode, a focus electrode, a horizontal deflection electrode, a vertical deflection electrode, a front glass on which a phosphor screen is formed, and a spacer for maintaining an interval between the electrodes, wherein the spacer is plate-shaped and has a space part through which electron beams pass at an inside of thereof.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: May 31, 2005
    Assignee: LG. Philips Displays Korea Co., Ltd.
    Inventors: Byoung Nam Kim, Tae Yong Kim, Jong Ho Lim, Nam Je Koh
  • Patent number: 6879096
    Abstract: An image formation apparatus is disclosed which includes, within an enclosure configured by a pair of substrates placed face to face and an external frame placed between the substrates, an electron source placed on one of the pair of substrates, an image formation material placed on the other substrate, and spacers placed between the substrates, characterized in that the spacers and the external frame is conductive and device is provided for electrically connecting the spacers and the external frame so that the equipotential surfaces between the spacers and the external frame are quasi-parallel when driven.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: April 12, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Miyazaki, Takeo Ono, Hideaki Mitsutake, Mitsutoshi Hasegawa, Eiji Yamaguchi, Shuji Yamada, Yasuyuki Todokoro
  • Patent number: 6861798
    Abstract: The present invention provides a spacer assembly which is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly when the spacer assembly is subjected to flat panel display operating voltages. The present invention further provides a spacer assembly which accomplishes the above achievement and which does not degrade severely when subjected to electron bombardment. The present invention further provides a spacer assembly which accomplishes both of the above-listed achievements and which does not significantly contribute to contamination of the vacuum environment of the flat panel display or be susceptible to contamination that may evolve within the tube. Specifically, in one embodiment, the present invention is comprised of a spacer structure which has a specific secondary electron emission coefficient function associated therewith.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: March 1, 2005
    Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.
    Inventors: Lawrence S. Pan, Donald R. Schropp, Jr., Vasil M. Chakarov, John K. O'Reilly, George B. Hopple, Christopher J. Spindt, Roger W. Barton, Michael J. Nystrom, Ramamoorthy Ramesh, James C. Dunphy, Shiyou Pei, Kollengode S. Narayanan
  • Patent number: 6858978
    Abstract: A method is provided for manufacturing a support frame of a rectangular display panel within a short working time. The method includes a process of taking out L-shaped component members each having convex portions and concave portions arranged alternately at an end portion in a manner that each of the convex portions and concave portions is bilaterally symmetrical, while a shear droop and a burr are formed on an end portion and process of fitting and coupling end portions of L-shaped component members by placing the convex portions and the concave portions in such a manner that the shear droop of each of the convex portions faces the burr of each of the concave portions and the burr of each of the convex portions faces the shear droop of each of the concave portions and that that the convex portions and the concave portions are pushed towards each other and by pressing the convex portions and the concave portions using a pair of metal molds.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: February 22, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Fumihiko Fujishiro, Hirokazu Fukuyoshi
  • Patent number: 6858980
    Abstract: In order to ensure hermeticity of a hermetic container and to suppress occurrence of electrical leakage, a display device is provided with a faceplate including an anode to be supplied with an externally-supplied electric potential, a rear plate arranged facing the faceplate at a predetermined spacing therefrom, a metal pin for supplying the electric potential to the anode from outside of the rear plate through a penetration hole in the rear plate, wherein the penetration hole includes the metal pin by insertion. The metal pin includes an axis portion disposed in the penetration hole and a flange portion which is integral with this axis portion and which is located adjacent an opening end of the penetration hole. The flange portion is joined to the rear plate for hermetically sealing the penetration hole.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: February 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kinya Kamiguchi
  • Patent number: 6853135
    Abstract: An apparatus for removing contaminants from a display device is disclosed. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. A getter is disposed in the auxiliary chamber. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In other embodiments, the getter is disposed in the border region surrounding the active area of the display.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: February 8, 2005
    Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.
    Inventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple, Christopher J. Curtin, Colin D. Stanners, Petre H. Vatahov, Christopher J. Spindt, Ronald L. Hansen
  • Patent number: 6844666
    Abstract: Disclosed is a color flat-panel display, which includes a rear glass, a rear electrode, a filament cathode for emitting electrons, a control electrode, a signal modulation electrode, a focus electrode, a horizontal deflection electrode, a vertical deflection electrode, a front glass on which a phosphor screen is formed, and spacers for maintaining an interval between the electrodes. Each electrode member of the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode includes an insulator and a conductive layer formed on a surface of the insulator and acting as an electrode.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: January 18, 2005
    Assignee: LG. Philips Displays Korea Co., Ltd.
    Inventors: Hyun Tae Chun, Nam Je Koh, Sung Woo Ko, Dae Soo Kim
  • Patent number: 6838810
    Abstract: A flat-panel display with fixtures in its sidewalls to enable support by lateral mounting members is disclosed. The advantage of this approach, in which the fixtures are essentially rotated around to the sides of the flat-panel display, is the reduction in the portion of the portable computer's top cover that is not the active display. In practice, this results in an increase in the size of the display that may be housed in the same-sized top cover. In order to accommodate the lateral mounting of the flat-panel display, metal brackets are used. These brackets extend from the base unit hinges and cradle the display. This adds torsional rigidity, but also removes the requirement that the back must be structural. Further reductions in the inactive portions of the top cover may be achieved by extending the ends of the display's fluorescent back-light beyond or through the metal rim that surrounds the display.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: January 4, 2005
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Michele Bovio, Robert C. Frame
  • Patent number: 6822387
    Abstract: A vacuum fluorescent display (VFD) capable of reducing the absorption of electrons by a control grid to enhance the functional efficiency of electrons is disclosed. The VFD has an evacuated envelope surrounded by a face glass, a base substrate and side glasses; a plurality of filamentary cathodes for emitting electrons when a negative potential is applied; an anode having a phosphor layer that responds to electrons emitted from the cathodes, and having a positive potential applied thereto; and electron control unit for generating a repulsive electric field that allows the acceleration of electrons emitted from the cathodes in the direction of the anode. The electron control unit may be a plurality of grids behind the cathodes, or a layer of transparent conductive material deposited on the inner surface of the face glass.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: November 23, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kyung-Su Park
  • Patent number: 6809469
    Abstract: A spacer on which static electricity is restricted and an electron beam apparatus in which the spacer is provided. In the electron beam apparatus comprising an electron source provided with electron emission devices, a face plate provided with anodes and spacers installed between the electron source and the face plate, unevenness is formed on the surface of the spacer substrate, and further a thin film which has a smaller thickness than a roughness. This makes possible the restriction of incident angle multiplication coefficient for the primary electrons whose energy is lower than the second cross-point energy of a resistive film. The electron beam apparatus provided with the above spacer is excellent in display definition and long-term reliability since the displacement of light emission points and the creeping discharge accompanying the static electricity can be restricted due to the spacer.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 26, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Hideaki Mitsutake
  • Patent number: 6806636
    Abstract: A CRT display including a display panel having a substantially flat outside surface, and an inside surface with a substantially fixed curvature includes a film coating with a non-uniform transmissivity. The film coating's transmissivity is varied, as a function of position, to compensate for variations in transmissivity exhibited by the display panel, thus resulting in substantially uniform image brightness across the surface of the CRT.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: October 19, 2004
    Assignee: LG Electronics, Inc.
    Inventors: Cheon Su Kang, Sung Ho Park
  • Patent number: 6803717
    Abstract: An image displaying apparatus capable of suppressing abnormal discharges includes the following components. That is, the image displaying apparatus includes a rear plate 1005 provided with electron beam sources; a face plate 1007 having an anode 1014 that includes an imaging area equipped with phosphor membrane 1008 emitting light by the irradiation of an electron beam and is regulated at an electric potential higher than those of the electron beam sources, and a potential regulating electrode 1015 that is situated at the outside of the anode 1014 for regulating the outside at a predetermined electric potential lower than that of the anode 1014; and spacers 1012 provided between the rear plate 1005 and the face plate 1007, wherein the image displaying apparatus has a structure such that the spacers 1012 contact both of the anode 1014 and the potential regulating electrode 1015 and electrodes are formed at the contacting portions.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: October 12, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoya Ohnishi
  • Publication number: 20040183429
    Abstract: An electron tube includes a vessel, a primary linear member installed in the vessel, an electrode disposed in the vessel, a first auxiliary linear member and a second auxiliary linear member disposed at different heights to interpose the primary linear member therebetween, and a plurality of fixing members. The fixing members are formed at a single substrate for constituting a part of the vessel, for fixing end portions of the first auxiliary and the second auxiliary linear member thereto.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 23, 2004
    Applicant: FUTABA CORPORATION
    Inventors: Yoshihisa Yonezawa, Yasuhiro Nohara, Hiroaki Kawasaki
  • Publication number: 20040174111
    Abstract: A side projection type cathode ray tube includes a front panel and at least two electron beam emission units. The front panel has a face portion for displaying an image thereon and a skirt portion backwardly extended from a periphery of the face portion. The electron beam emission units are prepared along the circumference of the skirt portion of the front panel. Each electron beam emission unit has an electron gun for emitting an electron beam and a deflection yoke for deflecting the electron beam emitted from the electron gun. By configuring the cathode ray tube in the above-described manner, the thickness of the cathode ray tube can be greatly reduced.
    Type: Application
    Filed: December 24, 2003
    Publication date: September 9, 2004
    Inventors: Sung Bee Choi, Kyoung Mun Choo
  • Patent number: 6787983
    Abstract: An image-forming apparatus includes an envelope, an electron source and an image-forming member arranged within the envelope, as well as an electron source drive circuit. An electroconductive member is arranged on the inner wall surface of the envelope between the electron source and the image-forming member. An electric current flow path A is formed as extending between the electroconductive member and the ground without passing through any of the electron source and the drive circuit. The electric current flow path A has a resistance lower than the resistance of another electric current flow path B extending between the electroconductive member and the ground by way of the electron source or the drive circuit.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: September 7, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Yamanobe, Fumio Kishi
  • Patent number: 6734617
    Abstract: Tiled flat-panel displays have increased mechanical stability due to the addition of stiffening straps affixed across seams between individual display modules. The stiffening straps may increase mechanical strength of the display by redistributing stress placed on the display from the front of the display to the straps.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: May 11, 2004
    Assignee: Intel Corporation
    Inventor: Robert C. Sundahl
  • Patent number: 6705909
    Abstract: An image-forming device having, in an envelope, an electron-emitting element, an image-forming member for forming an image by irradiation of an electron beam emitted from the electron-emitting element, and an electroconductive supporting member for supporting the envelope. The potential of the supporting member is controlled to not be higher than the maximum potential applied to the electron-emitting element. The electron-emitting element and the image-forming member can be placed in juxtaposition on the same substrate, an electro-conductive substrate can be additionally provided in opposition to the face of the substrate, and the supporting member can be connected electrically to one of the electrodes and also to the electro-conductive substrate.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: March 16, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Nomura, Hidetoshi Suzuki, Tetsuya Kaneko, Shinya Mishina, Naoto Nakamura
  • Patent number: 6700321
    Abstract: The image forming apparatus comprises an electron source having a substrate on which a plurality of electron emitting devices are arranged, a face plate provided with fluorescent substances for emitting light of different colors and serving to form a color image upon irradiation of electrons by the electron emitting devices. Rectangular spacers are arrange between the substrate and the face plate and are fixed to the face plate and contacted to the substrate via soft members.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: March 2, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideaki Mitsutake, Hiroshi Takagi, Yoichi Ohsato, Noriaki Ohguri, Masahiro Fushimi, Kazuo Kuroda, Yoshimasa Okamura
  • Patent number: 6686690
    Abstract: A process for fabricating a flat panel display having a faceplate and a baseplate comprises creating an electric field between the faceplate and the baseplate to temporarily attract the faceplate to the baseplate and attaching the baseplate and faceplate to each other while the electric field is present. Capacitor(s) are formed on the faceplate and/or baseplate of a flat panel display such that a portion of the capacitor(s) is formed on the faceplate and is aligned with the pixel matrix and/or a portion of the capacitor(s) is formed on the baseplate and is aligned with the cathode member. The first and second portions of the capacitor(s) are energized to opposite polarity voltages, and an electric field is generated which attracts and aligns the two portions of the capacitor(s) to each other. When the two portions of the capacitor(s) are aligned and attracted to each other, the pixel matrix and cathode assembly are inherently aligned with each other.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: February 3, 2004
    Assignee: Micron Technology, INC
    Inventor: James J. Alwan
  • Patent number: 6686678
    Abstract: A flat panel display having a mesh grid assembly which includes upper and lower spacers integral therein. The flat panel display includes a faceplate and a backplate provided opposing one another with a predetermined gap therebetween to define an exterior of the display. An illuminating assembly is provided in the display, the illuminating assembly realizing predetermined images. A mesh grid is provided between the backplate and the faceplate. A lower spacer is connected to a surface of the mesh grid opposing the backplate to be supported by the backplate. Upper spacers are connected to a surface of the mesh grid opposing the faceplate to be supported by the faceplate. The mesh grid, the lower spacer, and the upper spacers thereby integrally forming a single structural assembly.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 3, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Bong-Kyung Suk, Cheol-Hyeon Chang, Dong-Su Chang
  • Patent number: 6674230
    Abstract: A cathode ray tube includes an electron gun directing electrons away from a faceplate having an electrode biased at screen potential. One or more electromagnets located on or near the rear wall of the tube envelope are biased with dc currents so that the electron beam (three beams in a color tube) is deflected by the magnetic field produced thereby to impinge upon the faceplate. The electron beam is magnetically deflected over a relatively small angle as it exits the electron gun to scan across the faceplate to impinge upon phosphors thereon to produce light depicting an image or information. The electromagnet closest the electron gun is typically biased to produce a strong magnetic field to deflect electrons to the faceplate near to the electron gun. The electromagnets more distant the electron gun produce magnetic fields to direct electrons towards the faceplate, with the electromagnet most distant the electron gun deflecting the electrons to tend to increase the landing angle thereof on the faceplate.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: January 6, 2004
    Assignee: Sarnoff Corporation
    Inventors: Joseph Michael Carpinelli, Dennis John Bechis, George Herbert Needham Riddle
  • Patent number: 6664729
    Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: December 16, 2003
    Assignee: Micron Technology, Inc.
    Inventor: Jason B. Elledge