Phosphor On Anode Segments Patents (Class 313/496)
  • Patent number: 7986084
    Abstract: A field emission lamp includes a transparent glass tube, a cathode, and an anode. The anode and cathode are both disposed in the transparent glass tube. The cathode includes an electron emission layer. The anode includes a carbon nanotube transparent conductive film located on an inner wall of the transparent glass tube and a fluorescent layer located on the carbon nanotube transparent conductive film.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: July 26, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Liang Liu, Shou-Shan Fan
  • Patent number: 7985114
    Abstract: A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, wherein the carbon nanotube transparent conductive film and the fluorescent layer are both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough, a second glass feedthrough, and a nickel pipe, wherein the first glass feedthrough has an anode down-lead pad and an anode down-lead pole connected to the anode down-lead pad, and the second glass feedthrough has a cathode down-lead pole; (d) securing the nickel pipe to one end of the cathode emitter and securing the other end of the cathode emitter to one end of the cathode down-lead pole of the second glass feedthrough; and (e) melting and assembling the first and second glass feedthroughs to ends of the transparent glass tube respectively.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: July 26, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Lin Xiao, Feng Zhu, Liang Liu, Shou-Shan Fan
  • 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
  • Publication number: 20110148310
    Abstract: Provided is a field emission lamp (FEL), which includes a plurality of cathode electrodes formed above a first substrate, an anode electrode formed under a second substrate to face the cathode electrode, a fluorescent layer composed of red, green and blue (RGB) patterns formed alternately on the anode electrode in an oblique direction, and a plurality of emitters formed on the cathode electrodes to correspond to the RGB patterns. According to the present invention, as an FEL having a fast response time is used as a backlight unit, a color breaking phenomenon can be prevented in a color sequential driving method.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 23, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo JEONG, Yoon Ho Song, Dong II Kim, Jae Woo Kim, Jun Tae Kang
  • 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: 7952266
    Abstract: A white phosphor, and a light emission device including the white phosphor, and a display device including the white phosphor, the white phosphor including 40 to 45 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and combinations thereof; 30 to 40 parts by weight of a green phosphor selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and combinations thereof; and 20 to 25 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor shows a color temperature of from 12,000K and 14,000K.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: May 31, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Chan You, Jae-Woo Bae, Gyeong-Jae Heo, Sang-Hyuk Lee, Kyu-Chan Park, Sun-Hwa Kwon, Ji-Hyun Kim, Young-Suk Cho, Ui-Song Do, Hui-Young Ku, Yoo-Jung Lee, Byung-Kyun Kim
  • 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: 7939996
    Abstract: A display device (100) comprising a plurality of lighting units (101), each lighting unit comprising at least one light emitting diode (202) being provided with a fluorescent element (203) arranged to absorb at least part of the light emitted by said light emitting diode and emit light of a wavelength range different from that of the absorbed light is provided. The fluorescent element (203) comprises at least one phosphor being an europium(II)-activated halogeno-oxonitridosilicate of the general formula EaxSiyN2/3x+4/3y:EuzOaXb.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: May 10, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Klemens Brunner, Aldegonda Lucia Weijers, Hans-Peter Stormberg, Guido Henri Maria Van Tartwijk, Jean Paul Jacobs, Hans-Helmut Bechtel, Egbert Lenderink, Lingli Wang, Marco Van As, Erik Boonekamp, Martinus Petrus Joseph Peeters, Oscar Arturo Chao Pujol, Martijn Henri Richard Lankhorst, Teunis Willem Tukker, Cornelis Jojakim Jalink, Peter Alexander Duine
  • 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
  • Publication number: 20110095674
    Abstract: A cold cathode lighting device is a fluorescent tube replacement and has a transparent tube, a cold cathode formed as a wire or rod with an electron emissive surface and passing through a center of the transparent tube. An extraction grid is formed around and spaced apart from the cold cathode and has an external diameter smaller than an inner diameter of the transparent tube. A phosphor material and a conductive material form an anode on an inner surface of the transparent tube. A vacuum is maintained within the transparent tube and a power conversion circuit in an end unit converts electrical power into a first potential applied to the cold cathode, a second potential applied to the extraction grid and a third potential applied to the anode. Electrons emitted from the cold cathode accelerate towards the anode and light is emitted from the fluorescent tube replacement light emitting device.
    Type: Application
    Filed: April 23, 2010
    Publication date: April 28, 2011
    Inventors: Richard N. Herring, Andras Kuthi
  • Publication number: 20110084596
    Abstract: A device includes a substrate, an insulating member disposed on a surface of the substrate, a gate, and a cathode. The insulating member has an upper surface apart from the surface of the substrate, and a side surface rising from the surface of the substrate between the upper surface and the surface of the substrate. The gate is disposed on the upper surface of the insulating member. The cathode is disposed on the side surface of the insulating member and has a portion opposing the gate. The side surface of the insulating member on which the cathode is disposed has a protruding portion protruding from an imaginary line connecting a position where the portion opposing the gate lies and a position where the insulating member rises from the surface of the substrate.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yohei Hashizume
  • Publication number: 20110084597
    Abstract: There is provided a new electron beam apparatus which improves the instability of an electron emission characteristic and provides a high efficient electron emission characteristic. The electron beam apparatus includes: an insulating member having a recess on its surface; a cathode having a protruding portion extending over the outer surface of the insulating member and the inner surface of the recess; a gate positioned at the outer surface of the insulating member in opposition to the protruding portion; and an anode positioned in opposition to the protruding portion through the gate.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 14, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeo Tsukamoto, Ouichi Kubota
  • Patent number: 7923913
    Abstract: An image display apparatus includes first and second light-emitting regions which are arranged in a first direction, a first electron-emitting device corresponding to the first light-emitting region which is located further from the second light-emitting region than the first light-emitting region with respect to the first direction, a second electron-emitting device corresponding to the second light-emitting region which is located further from the first light-emitting region than the second light-emitting region with respect to the first direction, a first black member which is located on the opposite side of the first light-emitting region from the second light-emitting region, and a second black member which is located between the first and second light-emitting regions. A width of the second black member with respect to the first direction is smaller than a width of the first black member.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: April 12, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Iba, Tomoko Narusawa
  • 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: 7923915
    Abstract: A pixel structure of display apparatus includes a first substrate and a second substrate. Several cathode structure layers are disposed on the first substrate. The second substrate is a light-transmissive material. Several anode structure layers are disposed on the second substrate, and are light-transmissive conductive materials. The first substrate faces to the second substrate, so that the cathode structure layers are respectively aligned with the anode structure layers. A separation structure is disposed between the first substrate and the second substrate, for respective partitioning the anode structure layers and the cathode structure layers to form several spaces. Several fluorescent layers are respectively disposed between the anode structure layers and the cathode structure layers. A low-pressure gas is respectively filled into the spaces.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: April 12, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Jung-Yu Li, Shih-Pu Chen, Yi-Ping Lin, Wei-Chih Lin, Lian-Yi Cho
  • Patent number: 7915799
    Abstract: A field emission lamp generally includes a bulb having an open end, a lamp head disposed at the open end of the bulb, an anode, and a cathode. The anode includes an anode conductive layer formed on an inner surface of the bulb, a fluorescent layer deposited on the anode conductive layer, and an anode electrode electrically connected with the anode conductive layer and the lamp head. The cathode includes an electron emission element and a cathode electrode electrically connected with the electron emission element and the lamp head. The electron emission element has an electron emission layer. The electron emission layer includes getter powders therein to exhaust unwanted gas in the field emission lamp, thereby ensuring the field emission lamp with a high degree of vacuum during operation thereof. A method for making such field emission lamp is also provided.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: March 29, 2011
    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: 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: 7902753
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • 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
  • Publication number: 20110050088
    Abstract: A field emitting device includes a base substrate and at least three light emitting units and configured to respectively emit at least three lights having different wavelengths from each other. Each light emitting unit includes a first electrode arranged on the base substrate, a field emitter arranged on the base substrate, an insulating layer arranged on the first electrode and including an opening to expose the field emitter, a second electrode arranged on the insulating later to control an operation of the field emitter, a third electrode facing the first electrode, and a fluorescent layer arranged on a surface of the third electrode facing the first electrode. A transmissive area is located between the florescent layers of two adjacent light emitting units.
    Type: Application
    Filed: July 16, 2010
    Publication date: March 3, 2011
    Inventors: Haeil PARK, Jae Byung Park, Donchan Cho, Jinseob Byun, Sung-Jin Hong, Yu-Kwan Kim, Seon-Tae Yoon, Gunwoo Kim, Seul Lee
  • Publication number: 20110043097
    Abstract: A field emission lamp, capable of preventing the degradation and the non-uniformly distribution of the light intensity of the emitted light, even after long-term usage of the field emission lamp, is disclosed. The anode of the disclosed field emission lamp is not required to be transparent. The disclosed field emission lamp comprises: a transparent shell; an anode unit set inside the transparent shell; a cathode unit set between the anode unit and the transparent shell; and a phosphor layer set above the anode unit. The cathode unit is apart from the phosphor layer with a certain distance. The phosphor layer and the anode unit are both surrounded by the cathode unit.
    Type: Application
    Filed: December 8, 2009
    Publication date: February 24, 2011
    Applicant: Tatung Company
    Inventors: Wen-Hsien Cheng, Tzung-Han Yang, Yung-Chih Yu, Ching-Hsuang Cheng
  • Patent number: 7883788
    Abstract: It is an object of the present invention to provide a functional layer for protecting a light emitting element from being deteriorated by a physical or chemical influence when the light emitting element is manufactured or driven, and to attain extension of lifetime of an element and improvement of element characteristics without increasing a drive voltage and degrading transmittance and color purity by providing such a functional layer. One feature of the present invention is to provide a buffer layer made of a composite material for a light emitting element including aromatic hydrocarbon containing at least one vinyl skeleton and metal oxide in part of a light emitting substance containing layer, in the light emitting element fowled by interposing the light emitting substance containing layer between a pair of electrodes. The composite material for a light emitting element for forming the buffer layer of the present invention has high conductivity and is superior in transparency.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: February 8, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Kawakami, Tomoya Aoyama, Junichiro Sakata, Hisao Ikeda, Satoshi Seo, Yuji Iwaki
  • 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: 20110018428
    Abstract: An image display apparatus includes a rear plate including an electron-emitting device; and a luminescent screen including a plurality of light-emitting members, a plurality of anode electrodes positioned so as to overlap the light-emitting members, a partition wall member positioned between the light-emitting members adjacent to each other, a stripe-shaped resistance member electrically connecting the anode electrodes adjacent to each other and being positioned on the partition wall member, and a feeding electrode electrically connecting the resistance member to a power supply, wherein the feeding electrode is, on a mesh-shaped base adjacent to the partition wall member, in contact with the resistance member and a terminal of the power supply circuit.
    Type: Application
    Filed: August 4, 2010
    Publication date: January 27, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Ginjirou Toyoguchi
  • Patent number: 7876035
    Abstract: A pixel tube for a field-emission illumination/display device includes a sealed container, an anode electrode, a cathode electrode and a shielding electrode. The sealed container has a light permeable portion. The anode electrode is disposed in the sealed container and adjacent to the light permeable portion. The cathode electrode is arranged in the sealed container facing the anode electrode and includes a cathode supporter and a carbon nanotube yarn, the carbon nanotube yarn attached to the cathode supporter and extending toward the anode electrode for emitting electrons therefrom. The shielding electrode is disposed on a surface of the sealed container and surrounds/encircles the carbon nanotube yarn.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 25, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yuan-Chao Yang, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • 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
  • Publication number: 20110006666
    Abstract: In an electron beam apparatus including a lamination electron emitting device, it is an object to enhance electron emission efficiency by controlling an electron emission point at which electrons are emitted. In the device, an insulating member and a gate are formed on a substrate, a recess portion is formed in the insulating member, a protruding portion protruding from an edge of the recess portion toward the gate is provided at an end in opposition to the gate, of a cathode 6 arranged on a side surface of the insulating member, and convex portions at a distance of not less than 1 nm and not more than 5 nm from the gate in a width direction of the protruding portion are included in a density of 10% or less in a width direction of the cathode.
    Type: Application
    Filed: June 3, 2010
    Publication date: January 13, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiharu Sumiya, Hisanobu Azuma, Takanori Suwa, Hirotomo Taniguchi
  • Patent number: 7869117
    Abstract: Provided is an electrophoretic display device. The electrophoretic display device includes a first substrate and a second substrate forming a space receiving electrophoretic particles, and a first electrode and a second electrode formed on the first substrate and the second substrate respectively. The electrophoretic particles include reflective particles having a first electric polarity and reflecting a first light in visible wavelength bands, and light emission particles having a second electric polarity and emitting a second light by an optical stimulation. The first and second lights are in a substantially same color range of wavelength in a same pixel region.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-young Choi, Jai-yong Han
  • Patent number: 7868533
    Abstract: An electron emission display includes a first substrate, an electron emission unit formed at the first substrate to emit electrons, a second substrate facing the first substrate, and a light emission unit formed at the second substrate to emit visible light using electrons emitted from the electron emission unit. The light emission unit includes a phosphor layer formed on the second substrate and an anode electrode formed on the phosphor layer. The anode electrode includes a first metal layer and a second metal layer formed on the first metal layer and having a single- or multi-layered structure.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 11, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sang-Ho Jeon
  • Patent number: 7855499
    Abstract: A back light unit may include an electron emitter substrate adapted to emit electrons from a front surface and a rear surface thereof, a first anode substrate arranged opposite to the front surface of the electron emitter substrate, the first anode substrate adapted to receive electrons emitted from the electron emitter substrate, to emit light in response to the electrons, and to output the light from a front surface of the first anode substrate, and a second anode substrate arranged opposite to the rear surface of the electron emitter substrate, the second anode substrate adapted to receive electrons emitted from the electron emitter substrate, to emit light in response to the electrons, and to reflect light to the first anode substrate.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: December 21, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jin-woo Park
  • Patent number: 7855498
    Abstract: The invention relates to light-emitting diodes (O-LED). In particular, it relates to the driver electronics needed for these devices. An organic electroluminescent device is provided, which has a hermetically closed very flat housing. To improve the functionality of an O-LED, considerably reduce the height of an O-LED module and allow a cost-effective mass production, the driver circuit and the electronic driver elements or the printed circuit board (PCH) with the electronic driver elements are incorporated into the cover plate of the device.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: December 21, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Eberhard Waffenschmidt, Edward Willem Albert Young, Dirk Hente
  • 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: 7847478
    Abstract: An organic light emitting display capable of preventing the generation of screen distortion caused by a thick film phenomenon that occurs when the internal surface of a panel is coated with an absorbing member and a method of fabricating the same. The organic light emitting display includes a substrate on which an image display unit including at least one organic light emitting diode is formed. A panel is formed on the substrate to seal the image display unit. A first absorbing member is formed on the internal surface of the panel on the image display unit that faces the organic light emitting diode. A second absorbing member is formed on the circumference of the image display unit between the first absorbing member and the internal surface of the panel to overlap the circumference of the first absorbing member.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: December 7, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Pil Geun Chun, Tae Wook Kang
  • Patent number: 7847476
    Abstract: A light emission device, a method of manufacturing the same, and a display device using the same as a backlight unit. In one embodiment, a light emission device includes first and second substrates facing each other, a first electrode arranged on the first substrate in a first direction, a second electrode in a second direction crossing the first direction with an insulation layer interposed between the first and second electrodes, an electron emission region electrically connected to one of the first and second electrodes, and a phosphor layer formed on the second substrate, and an anode electrode formed on the phosphor layer. At least one of the first and second electrodes is divided into a plurality of sub-electrodes, first ends of which are for electrical interconnecting. A driving error electrode among the sub-electrodes is separated from the first ends of other normal electrodes.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: December 7, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Su-Joung Kang, Sang-Jin Lee
  • 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: 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: 7843130
    Abstract: Provided is an organic light-emitting apparatus which can allow each of a plurality of organic light-emitting elements of different emission colors to emit light under optimum conditions. The organic light-emitting apparatus includes: a substrate; a plurality of organic light-emitting elements of different emission colors disposed on the substrate and each having formed sequentially on the substrate, a first electrode formed independently for each of the plurality of organic light-emitting elements, an organic functional layer, and a light-transmissive second electrode continuously formed extending over the plurality of organic light-emitting elements; a conductive layer formed between the substrate and the first electrode and electrically connected to the second electrode; and an insulating layer formed between the conductive layer and the first electrode, in which the insulating layer is different in at least one of thickness and material for each of the different emission colors.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: November 30, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichiro Shimizu, Hideo Mori
  • Patent number: 7843120
    Abstract: A screen structure has a transparent substrate and a color filter on the transparent substrate, and light from a source of luminescence transmits the color filter and the transparent substrate. The transparent substrate has a height difference specified by a refractive index of the transparent substrate, a refractive index of the color filter, and a wavelength of the light which transmits the color filter in an interface with the color filter.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 30, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akemi Watanabe, Osamu Takamatsu
  • Publication number: 20100295440
    Abstract: A light emitting device capable of simplifying its manufacturing process and/or suppress vacuum leakage by improving its terminal structure and a display device having the same. The light emitting device includes a first substrate assembly, a second substrate assembly, and a sealing member for bonding the first substrate assembly with the second substrate assembly. The first substrate assembly includes a first substrate main body having recess portions, first electrodes within the recess portions, electron emission regions on the first electrodes, and second electrodes at a distance away from the electron emission regions and fixed to a surface of the first substrate assembly. Here, a first portion of the second electrode including a first end portion of the second electrode is exposed out of a region surrounded by the seal member and out of the seal member and is used as a terminal connected to an external circuit.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 25, 2010
    Inventors: Hyeong-Rae Seon, Jae-Young Lee, Dong-Su Chang
  • Patent number: 7839070
    Abstract: A field emission device has pixels with cathode and anode provided on the same plane, so that electrons directly penetrate an independently provided fluorescent powder layer to produce light, giving the display the advantages of easy focusing, no dark spots, high brightness, and enhanced light emitting performance. Since the light produced by the fluorescent powder layer is not blocked by the anode, the problem of charge accumulation on the fluorescent powder layer is avoided, and it is not necessary to use expensive light-transmittable conducting glass as the anode. With the cathode and the anode located at the same plane, it is not necessary to use a high precision spacer to maintain a fixed distance between the cathode and the anode, enabling the device to be manufactured at reduced cost and high good yield.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: November 23, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Jung-Yu Li, Shih-Pu Chen, Yi-Ping Lin, Wei-Chih Lin
  • 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: 7834535
    Abstract: A flat panel type display apparatus, which includes: a front substrate having a plurality of phosphor layers, an anode covering at least the plurality of phosphor layers, an electrode for applying a voltage to the anode, and a resistor member connecting the anode to the electrode; and a rear substrate having a plurality of electron-emitting devices corresponding to the plurality of phosphor layers, is characterized by including an insulating layer, and in that the insulating layer overlaps with the resistor member in an area, and isolates the anode formed in the area from the resistor member.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 16, 2010
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Ibuki, Masahiro Yokota, Keiji Suzuki
  • 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: 7834532
    Abstract: An electron beam display, in which light extracting efficiency from phosphor and a bright-portion contrast are improved is provided, has: an electron-emitting device, a metal back, and a phosphor dot which is disposed in opposition to the electron-emitting device through the metal back and emits light responsive to an irradiation with an electron beam emitted from the electron-emitting device; and further has a face plate having a black member which is disposed in opposition to the electron source through the phosphor dot and has an aperture in a region in which the phosphor dot is formed. A region irradiated with the electron beam emitted from the electron-emitting device is not larger than the phosphor dot, a part of the black member is disposed in the region irradiated with the electron beam, and at least a part of the aperture is disposed outside of the region irradiated with the electron beam.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: November 16, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoya Onishi
  • Patent number: 7834534
    Abstract: An illuminant substrate includes a substrate, first and second light emitting members provided on the substrate, a first anode covering the first light emitting member, a second anode covering the second light emitting member, a resistor located between the first and second light emitting members and electrically connecting the first and second anodes, and a rib laminated on the resistor. A side face of the resistor facing the first light emitting member projects toward the first light emitting member further than a side face of the rib facing the first light emitting member, and a side face of the resistor facing the second light emitting member projects toward the second light emitting member further than a side face of the rib facing the second light emitting member.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: November 16, 2010
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Ibuki, Masahiro Yokota, Masaaki Suzuki, Keiji Suzuki
  • Patent number: 7830078
    Abstract: A field emission backlight module has a field emission structure with cathode and anode provided on the same plane, so that electrons directly penetrate an independently provided fluorescent powder layer to produce light. The light is emitted uniformly without the need of the conventional optical membrane. Since the light produced by the fluorescent powder layer is not blocked by the anode, the problem of charge accumulation on the fluorescent powder layer is avoided, and it is not necessary to use expensive light-transmittable conducting glass as the anode. With the cathode and the anode located at the same plane, it is not necessary to use a precision spacer to adjust the distance between the cathode and the anode, enabling the module to be manufactured at reduced cost and high good yield. When the color sequential displaying method is adopted, expensive color filters required in the conventional LCD may be omitted.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: November 9, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Ping Lin, Shih-Pu Chen, Jung-Yu Li, Wei-Chih Lin
  • Patent number: 7821192
    Abstract: A field emission light source includes a substrate, a cathode conductive layer, a plurality of electron emitters, a transparent substrate, an anode layer and a fluorescent layer. The cathode conductive layer is formed on the substrate. The electron emitters are disposed on the cathode conductive layer. The transparent substrate is spaced from the cathode conductive layer. The anode layer is formed on the transparent substrate facing the electron emitters and includes a carbon nanotube film structure having carbon nanotubes arranged in a preferred orientation. The fluorescent layer is formed on the anode layer facing the electron emitters.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: October 26, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Peng Liu, Shou-Shan Fan
  • 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: 7821193
    Abstract: A color pixel element for field emission display includes a sealed container having a light permeable portion, at least two anodes, a cathode, at least two phosphor layers formed on the end surfaces of the anodes, and at least two CNT strings electrically connected to and in contact with the cathode with the emission portions of the CNT strings suspending. The phosphor layers are opposite to the light permeable portion, and one emission portion is corresponding to one phosphor layer. In each CNT string, some of CNT bundles are taller than and project over the adjacent CNT bundles, and each of projecting CNT bundles functions as an electron emitter. The anodes, the cathode, the phosphor layers and the CNT strings are enclosed in the sealed container. The luminance of the color pixel element is enhanced at a relatively low voltage.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: October 26, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Liang Liu, Shou-Shan Fan