With Accelerating Or Control Electrode Patents (Class 313/497)
  • Patent number: 8022611
    Abstract: There is provided a light emitter substrate which can suppress halation by forming a rib between adjacent light-emitting members of respectively different light emitting colors, and at the same time can withdraw a potential difference when a discharge occurs between adjacent metal backs, thereby achieving a desired discharging current suppressing capability. For that purpose, the plural parallel ribs protruding from a substrate are formed, a phosphor is provided between the adjacent ribs, plural divided metal backs are disposed respectively on the phosphors in the direction along the ribs, the metal back is connected to a feeding resistor on the rib by means of a connection conductor, and the feeding resistor is covered by a high-resistance cover member.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: September 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Yamazaki
  • Patent number: 8022608
    Abstract: By applying a drive voltage Vf [V] between first and second conductive films, when electrons are emitted by the first conductive film, an equipotential line of 0.5 Vf [V] is inclined toward the first conductive film, rather than toward the second conductive film, in the vicinity of the electron emitting portion of the first conductive film, in a cross section extending across the electron emitting portion and the portion of the second conductive film located nearest the electron emitting portion. The present invention improves electron emission efficiency.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koki Nukanobu, Keisuke Yamamoto, Tamaki Kobayashi, Takuto Moriguchi
  • Patent number: 8018169
    Abstract: Disclosed is a field emission device. The field emission device includes: an anode substrate including an anode electrode formed on a surface thereof and a fluorescent layer formed on the anode electrode; a cathode substrate disposed opposite to and spaced apart from the anode substrate, and including at least one cathode electrode formed toward the anode substrate and a field emitter formed on each cathode electrode; and a gate substrate having one surface in contact with the cathode substrate, wherein the gate substrate include gate insulators surrounding the field emitters and having a plurality of openings exposing the field emitters, and a plurality of gate electrodes formed on the gate insulators around the openings and electrically isolated from one another.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: September 13, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Jeong, Yoon Ho Song, Dae Jun Kim
  • Patent number: 8018133
    Abstract: A display apparatus according to the present invention has a plurality of electroconductive layers outside of an image display area. Mutually adjacent ones of the electroconductive layers are electrically connected by a resistor. The resistor has a first region, and a second region which is more separated from the image display area than the first region. The area of the second region per unit length in the direction separating from the image display area is smaller than the area of the first region.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 13, 2011
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Ibuki, Masahiro Yokota, Keiji Suzuki, Yoshiyuki Kitahara
  • Patent number: 8011990
    Abstract: This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: September 6, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Joseph Bouchard, Lap-Tak Andrew Cheng, David Herbert Roach
  • Patent number: 8013511
    Abstract: An electron-emitting device has a pair of device electrodes formed on a substrate and an electroconductive film connected to the device electrodes. The electroconductive film has a first gap between the device electrodes and has a carbon film having a second gap at least in the first gap. The substrate is formed by stacking a nitrogen-contained activation suppressing layer and an activation accelerating layer having a nitrogen containing ratio smaller than that of the activation suppressing layer onto a base and has nitrogen containing ratio distribution in the activation suppressing layer in a film thickness direction. The nitrogen containing ratio of the activation suppressing layer at the activation accelerating layer side is smaller than that at the base side.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: September 6, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiji Takeuchi, Takeo Tsukamoto
  • Patent number: 8013512
    Abstract: A flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a conductive frame on the passivating layer; and, a plurality of nanostructures on the conductive frame; wherein, exciting the conductive frame and addressing one of the pixels using the associated driver circuit causes the nanostructures to emit electrons that induce the one of the pixels to emit light.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: September 6, 2011
    Assignee: Copytele, Inc.
    Inventors: Denis A. Krusos, Frank J. DiSanto
  • Patent number: 8013510
    Abstract: An electron emission device includes a cathode device and a gate electrode. The gate electrode is separated and insulted from the cathode device. The gate electrode includes a carbon nanotube layer having a plurality of spaces. A display device includes a cathode device, an anode device spaced from the cathode electrode and a gate electrode. The gate electrode is disposed between the cathode device and the anode device. The cathode device, the anode device and the gate electrode are separated and insulted from each other. The gate electrode comprises a carbon nanotube layer having a plurality of spaces.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 6, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Lin Xiao, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 8008849
    Abstract: A flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a conductive frame on the passivating layer; and, a plurality of nanostructures on the conductive frame; wherein, exciting the conductive frame and addressing one of the pixels using the associated driver circuit causes the nanostructures to emit electrons that induce the one of the pixels to emit light.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 30, 2011
    Assignee: Copytele, Inc.
    Inventors: Frank J. DiSanto, Denis A. Krusos
  • Patent number: 8004171
    Abstract: A plasma display panel including a front panel having a first substrate, a first electrode, a first dielectric layer and a protective layer wherein the first electrode is formed on the first substrate, the first dielectric layer is formed over the first substrate so as to cover the first electrode, and the protective layer is formed on the first dielectric layer, and a rear panel having a second substrate, a second electrode, a second dielectric layer and a phosphor layer wherein the second electrode is formed on the second substrate, the second dielectric layer is formed over the second substrate so as to cover the second electrode, the phosphor layer is formed on the second dielectric layer.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: August 23, 2011
    Assignee: Panasonic Corporation
    Inventors: Hideki Yamashita, Hironobu Inoue, Motoi Hatanaka, Tomohiro Okumura
  • Patent number: 8004167
    Abstract: A field effect electron emitting apparatus using nano-wire electron emitters is disclosed where each nano-wire electron emitter may be grown in a pore of an insulating layer and/or may have at least a portion exposed from the pore. A method of manufacturing a field effect electron emitting apparatus is also disclosed. The field effect electron emitting apparatus may be used in a display.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 23, 2011
    Assignee: Sony Corporation
    Inventors: Takehisa Ishida, Wei Beng Ng
  • Patent number: 7999453
    Abstract: A field effect electron emitting apparatus comprising an insulating layer having an array of pores is disclosed, each pore has at least one nano-wire electron emitter which is shorter than the pore, and/or each pore may have a plurality of nano-wire electron emitters. A method of manufacturing a electron emitting array is also disclosed. The field effect electron emitting apparatus may be used in a display.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 16, 2011
    Assignee: Sony Corporation
    Inventor: Takehisa Ishida
  • Patent number: 7994696
    Abstract: An electron emission device includes a base substrate, at least one isolation layer on the base substrate, the isolation layer having a first lateral side and a second lateral side opposite the first lateral side, first and second electrodes on the base substrate along the first and second lateral sides of the isolation layer, respectively, a first electron emission layer between the first electrode and the first lateral side of the isolation layer, and a second electron emission layer between the second electrode and the second lateral side of the isolation layer.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 9, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-Ki Park, Hee-Sung Moon, Yoon-Jin Kim, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee
  • Patent number: 7994701
    Abstract: An electron-emitting device according to this invention has a cathode electrode, a first electrode, a second electrode, an insulating layer, a gate electrode, and an electron-emitting member. The gate electrode, the insulating layer, and the first electrode respectively have an opening communicating with each other. The electron-emitting member is provided on the cathode electrode, and at least a portion of the electron-emitting member is exposed in the opening. The second electrode is provided in the opening of the first electrode and electrically connected to the cathode electrode.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 9, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoji Teramoto, Ryoji Fujiwara, Michiyo Nishimura, Kazushi Nomura, Shunsuke Murakami
  • Patent number: 7990043
    Abstract: A field emission cathode structure includes a dielectric layer, a field emission unit, a grid electrode, and a conductive layer. The dielectric layer is positioned on the insulating substrate and defines a cavity. A field emission unit is attached on the cathode electrode and received in the cavity of the dielectric layer. The field emission unit is electrically attached to the cathode electrode. The grid electrode is located on the dielectric layer, and electrons emitted from the field emission unit emit through the grid electrode. The conductive layer is electrically attached to the grid electrode and insulated from the field emission unit. A field emission display device using the above-mentioned field emission cathode structure is also provided.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: August 2, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Jie Tang, Hai-Yan Hao, Qi Cai, Xing Zhang, Shuai Liu, Bing-Chu Du, Liang Liu, Shou-Shan Fan
  • Patent number: 7986083
    Abstract: An electron emission device includes a cathode electrode and a gate electrode, the gate electrode is separated and insulated from the cathode, the gate electrode is a CNT layer, and the CNT layer includes at least a carbon nanotube film and a plurality of carbon nanotube reinforcement structures. A display that includes the electron emission device is also disclosed.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: July 26, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Lin Xiao, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 7982381
    Abstract: An electron source including: a plurality of electron-emitting devices connected to a matrix wiring of scan lines and modulation lines on a substrate, wherein each of the electron-emitting devices includes a cathode electrode connected to the scan line, a gate electrode connected to the modulation line and a plurality of electron-emitting members, the cathode electrode is configured in a first comb-like structure for applying an electric potential of the cathode to the plurality of electron-emitting members, the gate electrode is configured in a second comb-like structure for applying an electric potential of the gate to the plurality of electron-emitting members, and each of the first and second comb-like structures is provided with a plurality of comb-teeth, and a connecting electrode electrically connected to the plurality of teeth in at least one of the first and second comb-like structures.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: July 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobumasa Suzuki
  • Patent number: 7977859
    Abstract: Degradation of an electron emission element by irradiation of the positive ion generated inside a panel is suppressed. A deflection electrode is periodically disposed, and the electron emission region of an electron emission element is disposed so as not to include a center line between adjacent deflection electrodes, so that an electron beam trajectory is deflected and bombardment or irradiation of the generated positive ion to the electron emission region is prevented.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: July 12, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Mutsumi Suzuki, Toshiaki Kusunoki
  • Patent number: 7969084
    Abstract: A display device is provided including a display panel for displaying an image and a backlight panel for providing light to the display panel. The backlight panel includes a vacuum chamber including a first substrate, a second substrate, and a sealing member. Cathode electrodes are on a side of the first substrate along a first direction with a gap between each other. Gate electrodes are between the cathode electrodes. Electron emission regions are at either sides of the cathode electrodes facing the gate electrodes. A diffusion electrode is above the cathode electrodes and the gate electrodes. An insulator is between the diffusion electrode and the cathode electrodes and between the diffusion electrode and the gate electrodes. Openings are in the diffusion electrode for exposing the electron emission regions. A light emitting unit is on the second substrate.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: June 28, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Il-Hwan Kim, Young-Churl Kim
  • Patent number: 7965027
    Abstract: To suppress discharge around an anode electrode. Provided is a light-emitting substrate, including a light-emitting member for emitting light by irradiation with an electron, a first electroconductive film stacked on the light-emitting member, a second electroconductive film which is distant from an outer periphery of the first electroconductive film and surrounds the outer periphery of the first electroconductive film, and a dielectric film for covering an end portion of the second electroconductive film which is opposed to the outer periphery of the first electroconductive film.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: June 21, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoya Onishi
  • Patent number: 7960907
    Abstract: Provided herein is a light-emitting apparatus which is capable of causing the light emitted at the entire face of a fluorescent material to be exteriorly emitted with no interference and with enhanced light emission efficiency, thereby attaining an exteriorly radiated high brightness light. A cathode electrode 10 is mounted on a periphery of a transmission member 30, the anode electrode 15 is also mounted on a domain opposite to a light transmission member 30, and the surface 16a of the fluorescent material 16 to be mounted on a top layer of the anode electrode 15 is formed with a concave face.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 14, 2011
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hisaya Takahashi, Toshiya Arakawa, Atsushi Namba, Mikio Ono
  • Patent number: 7942714
    Abstract: A method of manufacturing a field emission display includes: sequentially forming a cathode electrode, an insulating layer, and a gate material layer on a substrate; forming a metal sacrificial layer on an upper surface of the gate material layer; forming a through hole to expose the insulating layer in the metal sacrificial layer and the gate material layer; forming an emitter hole to expose the cathode electrode in the insulating layer exposed through the through hole; forming a gate electrode by etching the gate material layer constituting an upper wall of the emitter hole; and forming an emitter of Carbon NanoTubes (CNTs) on an upper surface of the cathode electrode located below the through hole.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-Suk Kang, Yong-Wan Jin, Sun-Il Kim, Deuk-Seok Chung, Byong-Gwon Song, Shang-Hyeun Park
  • Patent number: 7939997
    Abstract: To simultaneously suppress halation and discharging current flowing in the unlikely event of discharge, and easily perform potential regulating for a spacer, an image displaying apparatus comprises: a rear plate having electron-emitting devices arranged in matrix; a face plate having a substrate, light-emitting members arranged in matrix on the substrate, metal backs each covering at least one member and mutually arranged in matrix at gaps, ribs having first striped portions respectively positioned among the members and protruding toward the rear plate, and a resistive wiring including a resistor between the substrate and the ribs and electrically connecting the metal backs, and positioned oppositely to the rear plate; and a spacer positioned between the rear plate and the ribs to mutually support the rear and face plates, wherein the rib has a spacer connection wiring abutting against the spacer, and the spacer connection wiring is electrically connected to the resistive wiring.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 10, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Yamazaki
  • Patent number: 7928645
    Abstract: An airtight container includes a first substrate and a second substrate facing the first substrate and joined thereto using joint members. The first substrate has a groove extending on a surface of the first substrate and a wiring provided along a direction of the extended groove. The wiring includes a section inside and along the groove and a section outside the groove and extending from the section inside the groove, and the first substrate includes joint members provided on and across the section of the wiring outside the groove. In addition, a frame is joined on the second substrate by second joint members and is interposed between the first substrate and the second substrate. The frame is joined to the first substrate by the first joint members.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: April 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshio Suzuki, Kazuya Ishiwata
  • Patent number: 7923912
    Abstract: A light emission having: a first substrate; a second substrate opposite the first substrate; a sealing member between the first and second substrates and forming a vacuum envelope with the first and second substrates. The device also includes an electron emission unit on the first substrate, the electron emission unit having a plurality of pixel regions, each of the plurality of pixel regions having an independently controlled electron emission; a light emission unit on the second substrate, the light emission unit having a phosphor layer and an anode electrode on the phosphor layer; at least one anode button penetrating the second substrate at a region enclosed by the sealing member and spaced apart from the light emission unit; and a conductive layer on the second substrate and electrically coupling the anode button to the anode electrode.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: April 12, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Gun Won, Sang-Jin Lee, Hun-Soo Kim, Hyeong-Rae Seon
  • Patent number: 7915800
    Abstract: Field emission devices (FEDs) are provided. In one embodiment, an FED includes an electron emitter, a tube spaced apart from the electron emitter and having a first opening and a second opening, and a gate electrode disposed on an outer surface of the tube. The first opening is disposed at one end of the tube adjacent to the electron emitter, and the second opening is disposed at the other end of the tube. The FED further includes an anode that is spaced apart from the second opening and collects secondary electrons emitted from the second opening.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: March 29, 2011
    Assignee: SNU R&DB Foundation
    Inventors: Yong Hyup Kim, Wal Jun Kim
  • Patent number: 7911125
    Abstract: An electron emission device having a high electron emitting rate and a display including the device are provided. The electron emission device using abrupt metal-insulator transition, the device including: a board; a metal-insulator transition (MIT) material layer disposed on the board and divided by a predetermined gap with portions of the divided MIT material layer facing one another; and electrodes connected to each of the portions of the divided metal-insulator transition material layer for emitting electrons to the gap between the portions of the divided metal-insulator transition material layer.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: March 22, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun-Tak Kim, Byung Gyu Chae, Kwang-Yong Kang, Yoon Ho Song
  • Patent number: 7911124
    Abstract: An electron emission display, including an electron emission unit on a first substrate, a light emission unit on a second substrate, the second substrate affixed to the first substrate and having the electron emission unit and the light emission unit positioned therebetween, and a plurality of spacers disposed between the first and second substrates, wherein each spacer of the plurality of spacers includes a spacer body and at least one coating layer disposed on the spacer body, and wherein each spacer of the plurality of spacers satisfies the proviso that 0.02<?2/?1<100, where ?1 is a specific resistivity of an outer-most coating layer disposed on the spacer body and ?2 is a specific resistivity of an element in direct contact with the outer-most coating layer.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: March 22, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sung-Hwan Jin
  • Patent number: 7911123
    Abstract: An electron emission device includes a substrate, cathode electrodes formed on the substrate, electron emission regions electrically coupled to the cathode electrodes, an insulation layer formed on the substrate while covering the cathode electrodes, and gate electrodes formed on the insulation layer and crossing the cathode electrodes. One or more gate holes are formed at each of crossing regions of the gate electrodes and the cathode electrodes through the insulation layer and the gate electrodes. At least one of the cathode electrodes includes at least two openings divided by a bridge. The at least two openings divided by the bridge are formed on each exposed region of the cathode electrodes through the gate holes. A corresponding one of the electron emission regions contacts the bridge and extends toward the walls of at least one of the openings but is spaced away from the cathode electrodes.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: March 22, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyung-Sun Ryu, Kyu-Won Jung, Il-Hwan Kim, Si-Myeong Kim, Ho-Su Han
  • Patent number: 7902760
    Abstract: Provided is a method of driving an electron emission apparatus that drives the apparatus including a plurality of electron emission devices each having an electron supply layer formed of silicon, a silicon-based mixture or a compound thereof, an insulator layer formed on the electron supply layer and a thin film metal electrode formed on the insulator layer. The plurality of electron emission devices are sealed and the method includes: a driving step for supplying power between the electron supply layer and the thin film metal electrode to cause electrons to be emitted from the electron emission device and a reactivating step for applying a reactivating voltage at a level equal to or higher than an applied voltage value which causes discontinuity in differential value of the device current flowing between the electron supply layer and the thin film metal electrode with respect to the applied voltage.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: March 8, 2011
    Assignee: Pioneer Corporation
    Inventors: Nobuyasu Negishi, Kazuto Sakemura, Takamasa Yoshikawa, Kiyohide Ogasawara
  • Patent number: 7902737
    Abstract: A light emission device and a display having the light emission device are provided. The light emission device includes first and second substrates arranged opposite to each other, an electron emission unit provided on the first substrate, a light emission unit provided on the second substrate, and spacers that are supportably disposed between the first and second substrates. The spacers are formed in a pillar configuration and each side of the spacers is arranged at an acute angle with respect to an edge of driving electrodes of the electron emission unit.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: March 8, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byong-Gon Lee
  • Patent number: 7884536
    Abstract: A light emission device and a display having the light emission device are provided. The light emission device includes a light emission panel for emitting light, a diffuser plate facing the light emission panel to diffuse the light emitted from the light emission panel, and a heat dissipation plate disposed between the light emission panel and the diffuser plate.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: February 8, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Jin Lee, Kyung-Sun Ryu
  • Publication number: 20110025188
    Abstract: A field emission lamp and method of fabricating the same are disclosed, the field emission lamp of the present invention comprising a lamp tube, an anode, at least one auxiliary electrode, a cathode, and an emitter layer. The anode comprises a transparent conductive layer and a phosphor layer, and the transparent conductive layer is made of ITO, IZO, AZO, GZO, zinc oxide, or the combination thereof. The auxiliary electrode of the field emission lamp of the present invention can shorten the electron transportation path length, increase the electron transportation efficiency, reduce the phenomenon of micro-discharges caused by electron charging, reduce the voltage loss, reduce the temperature increase of the phosphor layer and elongate the lifetime of the field emission lamp.
    Type: Application
    Filed: November 12, 2009
    Publication date: February 3, 2011
    Applicant: Tatung Company
    Inventors: Tzung-Han Yang, Bing-Da Dai
  • Patent number: 7880375
    Abstract: A triode type cathode structure of an FED screen arranged in rows and columns, including a first lower metallization level forming cathodes, an electrical insulating layer, a second higher metallization level forming extraction grids, openings formed in the second metallization level and in the electrical insulating layer, and lines of electron emission arranged in the openings, which lines are parallel to the direction of the rows of the screen.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 1, 2011
    Assignee: Commissariat A l'Energie Atomique
    Inventors: Jean Dijon, Robert Meyer, Francois Levy
  • Patent number: 7872408
    Abstract: A field-emission-based flat light source includes the following: a light-permeable substrate; a plurality of line-shaped cathodes; an anode; a light-reflecting layer; and a fluorescent layer. The light-permeable substrate has a surface, and the line-shaped cathodes, with a plurality of carbon nanotubes formed and/or deposited thereon, are located on the surface of the light-permeable substrate. The anode faces the cathodes and is spaced from the cathodes to form a vacuum chamber. The light-reflecting layer is formed on the anode and faces the cathode. The fluorescent layer is formed on the light-reflecting layer.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 18, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Jie Tang, Zhi Zheng, Li Qian, Shou-Shan Fan
  • Patent number: 7863806
    Abstract: A color field emission display includes a sealed container having a light permeable portion and at least one color element enclosed in the sealed container. The color element includes a cathode, at least two anodes, at least two phosphor layers and at least two CNT strings. The phosphor layers are formed on the end surfaces of the anode. The CNT strings are electrically connected to and in contact with the cathode with the emission portion thereof suspending. The phosphor layers are opposite to the light permeable portion, and one emission portion is corresponding to one phosphor layer. The luminance of the color FED is enhanced at a relatively low voltage.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 4, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Liang Liu, Shou-Shan Fan
  • Patent number: 7855500
    Abstract: An electron emission display that can mitigate or prevent problems of an arc discharge and a wire disconnection due to increases in resistance at portions where a sealing member contacts electrodes includes: an electron emission device on which upper surfaces of electrodes are exposed, a front panel that is disposed in front of the electron emission device, the front panel being of a phosphor material, and a sealing member that seals a space formed by the electron emission device and the front panel by being disposed on the edges of the space in contact with the electrodes. The electrodes are formed on an entire surface of the electron emission device with a narrow width at an end portion of the electron emission device where the electrodes are connected to an external power source, and the sealing member contacts the electrodes closer to the space than end portions of the electrodes where the width of the electrodes is narrowed.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: December 21, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jae-Sang Ha
  • Patent number: 7847474
    Abstract: A vacuum envelope and an electron emission display having the vacuum envelope. The vacuum envelope includes a first substrate and a second substrate facing the first substrate. A plurality of frames is arranged between the first substrate and the second substrate to form an inner vacuum space. An absorbing member is arranged between at least two of the frames.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: December 7, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hyeong-Rae Seon
  • Patent number: 7843119
    Abstract: The spacer comprises an insulating member and a plurality of electroconductive members each including a portion enveloped with the insulating member within a region sandwiched between a region on which the anode is disposed and the first substrate, and the plurality of electroconductive members are arranged such that the portions of the electroconductive members enveloped with the insulating member are spaced apart from each other in a direction along which the first and second substrates are opposed.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: November 30, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoya Onishi
  • Patent number: 7843121
    Abstract: A field emission double-plane light source includes a first anode, a second anode, and a cathode separately arranged between the first and second anodes. Each of the first and second anodes includes an anode substrate, an anode conductive layer formed on a surface of the anode substrate, and a fluorescent layer formed on the anode conductive layer. The cathode has a metallic based network with two opposite surfaces, each facing a respective one of the first and second anodes. Each of the surfaces of the network has a respective electron emission layer thereon facing a corresponding fluorescent layer of one of the first and second anodes. Each of the electron emission layers includes a glass matrix, and a plurality of carbon nanotubes, metallic conductive particles, and getter powders dispersed in the glass matrix. A method for making such field emission double-plane light source is also provided.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: November 30, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Li Qian, Liang Liu, Peng Liu, Jie Tang, Yang Wei, Shou-Shan Fan
  • Patent number: 7839063
    Abstract: To provide a display panel having such a structure that a color filter is unlikely to suffer damage due to a heat treatment in a reducing atmosphere in the fabrication process for display device. A display panel (anode panel AP) includes a fluorescent region formed on a substrate, and an electrode (anode electrode), formed on the fluorescent region, wherein electrons emitted from an electron source penetrate the electrode and collide with the fluorescent region to allow the fluorescent region to emit light to obtain a desired image, wherein a color filter and a color filter protective film are formed in this order from the side of the substrate between the substrate and the fluorescent region.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 23, 2010
    Assignee: Sony Corporation
    Inventors: Akemi Matsuo, Kunio Goto, Yasushi Ito, Shinjiro Kida, Takahide Ishii
  • Patent number: 7834536
    Abstract: A light-emitting apparatus of the present invention maintains an anode electrode 5 at a higher positive electric potential than a cathode electrode 15, applies an electric field to a cold-cathode electron emission source 16 by controlling a gate voltage applied to the cathode electrode 15 with a gate electrode 10, and emits excitation light from a phosphor 6 irradiated by an electron beam released from the cold-cathode electron emission source 16. The light-emitting apparatus of this invention emits the excitation light not only from the opposite side of the electron beam-irradiated surface of the phosphor 6 through a glass substrate 2, but also from the electron bean-irradiated surface of the phosphor 6 by reflecting the excitation light with a gate reflection surface 12 on the gate electrode 10 and emitting it through an unobstructed area Ro of the glass substrate 2.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: November 16, 2010
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hisaya Takahashi, Atsushi Namba
  • Patent number: 7833075
    Abstract: In a method for forming a metal line, a first metal layer and a second metal layer are deposited on a substrate. The first metal layer includes aluminum, and the second metal layer includes molybdenum. A photoresist pattern having a line-shape is formed on the second metal layer. The second metal layer is etched with a chlorine-containing etching gas using the photoresist pattern as a mask. The first metal layer is then etched with a mixture of a chlorine-containing gas and nitrogen gas and/or a mixture of a chlorine-containing gas and argon gas as an etching gas. Impurities such as chlorine ions are removed from the base substrate after etching the first metal layer with a fluorine-containing gas, hydrogen gas, or water vapor. A method for manufacturing a display substrate is disclosed using the method for forming a metal line to form source, drain, and gate electrodes and gate lines.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Seok Oh, Sang-Gab Kim, Shin-Il Choi, Hong-Kee Chin, Yu-Gwang Jeong, Seung-Ha Choi
  • Publication number: 20100283380
    Abstract: In an electron beam apparatus including an electron emission element and an anode, the electron emission element includes a gate 5 and a cathode 6 having a projection portion. The gate 5 and the cathode 6 are located in a surface of an insulating member 3 including a recess 7. The projection portion of the cathode 6 has a height distribution, and an average value day (m) of a shortest distance between the gate 5 and the projection portion of the cathode 6 and a difference h (m) between the average value day and a shortest distance dmin (m) from the gate 5 to a maximum convex portion of the projection portion of the cathode 6 satisfy a relationship of h/day<0.39.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hirotomo Taniguchi, Toshiharu Sumiya, Hisanobu Azuma, Takanori Suwa
  • Patent number: 7821189
    Abstract: This invention provides a method for maintaining vacuum of a panel module and a structure of the panel module. A sealing material is suspended inside the panel module right above an exhaust opening of the panel module connecting with an exhaust tube. After exhausting the inside of the panel module, the sealing material is heated and molten so as to drop down to seal the exhaust tube. As such, the panel module becomes vacuum-tight. During a subsequent annealing process to heat the exhaust tube to its melting temperature, ambient air is prohibited from flowing into the panel module.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: October 26, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Ping Peng, Yun-Jiau Shiau
  • Patent number: 7816851
    Abstract: A planar light source device includes a lower substrate, a cathode electrode a carbon nanotube, an upper substrate, a fluorescent layer, and an anode electrode. The cathode electrode is on the lower substrate. The carbon nanotube is electrically connected to the cathode electrode. The upper substrate faces the lower substrate. The fluorescent layer and the anode electrode are formed on the upper substrate. Therefore, the planar light source device generates light without using mercury.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: October 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-Suk Yoo, Seung-Ki Joo, Myong-Hi Rhee, In-Sun Hwang, Hae-Il Park, Sung-Lak Choi
  • Patent number: 7816854
    Abstract: A light emission device and a display device having the light emission device are provided. A light emission device includes first and second substrates facing each other to form a vacuum envelope. An electron emission unit is provided on the first substrate. A light emission unit is provided on the second substrate to emit light using electrons emitted from the electron emission unit. A spacer uniformly maintains a gap between the first and second substrates. The spacer has a surface resistivity within a range of 1012-1014 ?cm.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: October 19, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyung-Sun Ryu, Pil-Goo Jun, Su-Joung Kang, Jong-Hoon Shin, Kyu-Won Jung, Sang-Jin Lee, Jin-Ho Lee
  • Patent number: 7804236
    Abstract: A flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a conductive frame on the passivating layer; and, a plurality of nanostructures on the conductive frame; wherein, exciting the conductive frame and addressing one of the pixels using the associated driver circuit causes the nanostructures to emit electrons that induce the one of the pixels to emit light.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: September 28, 2010
    Assignee: Copytele, Inc.
    Inventors: Frank J. DiSanto, Denis A. Krusos
  • Patent number: 7795795
    Abstract: The invention provides an electron beam apparatus having: a rear plate having a plurality of electron-emitting devices each provided with a device electrode, and a plurality of wirings connected to the device electrodes; and a face plate being provided with an anode electrode, and being arranged in opposition to the rear plate so as to be irradiated with an electron emitted from the electron-emitting device, wherein the device electrode is electrically connected to the wiring through an additional electrode, and the additional electrode is formed from an electroconductive material of which phase transition from a solid phase directly into a vapor phase is caused at a temperature not lower than a melting point of the device electrode within an evacuated atmosphere.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: September 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Iba, Hisanobu Azuma
  • Patent number: 7795793
    Abstract: A surface light source includes a body, an electrode, a transparent electrode, an electron-emitting member, a conductive grid member, a fluorescent layer and a supporting part. The body includes first and second body parts spaced apart from each other. The electrode and the transparent electrode are disposed on the first and second body parts, respectively. The electron-emitting member is disposed on the electrode to emit an electron toward the transparent electrode. The conductive grid member is disposed between the electrode and the transparent electrode to accelerate the electron. The fluorescent layer is disposed on the transparent electrode to convert the electron into visible light. The supporting part is integrally formed with the body to support the first and second body parts.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: September 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Sun Hwang, Hae-II Park, Sang-Yu Lee