Patents Examined by Hana A. Sanei
  • Patent number: 7531962
    Abstract: To maximize the efficiency of utilization of mother substrates used as material for the substrates in the flat display panel to form a display screen, the flat display panel includes a display screen formed by tetragonal first and second substrates. Four sides or opposite two sides forming a tetragonal peripheral edge of the first substrate are rendered to be substantially equal to those of the second substrate, and the first and second substrate are sandwiched together with one of the first and second substrates protruding in part outwardly from the peripheral edge of the other of the first and second substrates.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: May 12, 2009
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yasuhiko Kunii, Hiroyuki Nakahara, Tomohiko Murase, Fumihiro Namiki
  • Patent number: 7521869
    Abstract: An electric discharge lamp comprising: a light-transmissive ceramic discharge vessel (1); a first and a second current conductor (2,3) entering the discharge vessel (1)and each supporting an electrode (4,5) in the discharge vessel (1); an ionizable filling comprising a rare gas and a metal halide in the discharge vessel (1); at least the first current conductor (2) within the discharge vessel (1) being halide-resistant, characterized in that the first current conductor (2) at least substantially comprises a material with an at least substantially isotropic coefficient of thermal expansion, said material preferably being chosen from the group of YpSi3Xq, wherein Y is chosen from Mo, W and Ta and X is B, Al, N or C with 4<p:5 5 and 0<q<1. More preferably, said material is of the composition Mo6(Six, Moi-X)4(Cy, Si1-y)6 with 0.10:5 x<0.55 and 0.15<y:S 0.40.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 21, 2009
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Govert Nieuwland, Johannes Franciscus Maria Cillessen, Henricus Albertus Maria Van Hal
  • Patent number: 7518302
    Abstract: Each pixel of a field emission device includes a resistor with at least one emitter tip thereover and at least one substantially vertically oriented conductive element positioned adjacent the resistor. In a field emission array, a conductive element may contact each resistor of a line of pixels. A method for fabricating the field emission array includes forming a plurality of substantially parallel conductive lines, depositing at least one layer of semiconductive or conductive material over and laterally adjacent each conductive line, and forming a hard mask in recesses of the surface of the uppermost material layer. The underlying material layer or layers are patterned through the hard mask, exposing substantially longitudinal center portions of the conductive lines. The remaining semiconductive or conductive material is patterned to form the emitter tips and resistors. At least the substantially central longitudinal portions of the conductive traces are removed to form the conductive elements.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: April 14, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Ammar Derraa
  • Patent number: 7518304
    Abstract: A flat panel display device includes a first substrate; an electron emission region formed on the first substrate; a second substrate located at a predetermined distance facing the first substrate and forming a vacuum vessel with the first substrate; and a light emitting region which emits light derived by electrons emitted from the electron emission source. The light emitting region includes an anode in a predetermined pattern that formed on the second substrate and a phosphor screen layered on the anode. A proportion, k between a screen weight of the phosphor screen and an average diameter of phosphor particles on the phosphor screen satisfies: k=S/(D·n) where, k ranges from 0.16 to 0.23, S is the screen weight (mg/cm2), D is the average diameter of the phosphor particles, and n is the number of accumulation layers of the phosphor powder particles on the phosphor screen.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: April 14, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Zin-Min Park, Soo-Joung Lee
  • Patent number: 7514874
    Abstract: A ceramic metal halide lamp wherein the halide dose includes the following component ranges in mol/cm3: Nal: 1.84×10-5 to 2.33×10-5, Lnl3: 5.20×10-6 to 6.60×10-6, Tl: 1.76×10-7 to 2.23×10-7, wherein Ln are lanthanide elements, and further includes a halide dosage weight of between 0.40 to 0.77.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: April 7, 2009
    Assignee: General Electric Company
    Inventors: Stuart Albert Mucklejohn, Zoltan Koltai
  • Patent number: 7508132
    Abstract: A device including a substrate, a getter structure coupled to the substrate, and a photomask disposed over the getter structure. The photomask has a substantially transmissive and a substantially non-transmissive region. The substantially transmissive region substantially aligns with the getter structure.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: March 24, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chien-Hua Chen, James C. McKinnell, John Liebeskind
  • Patent number: 7508134
    Abstract: A low-pressure mercury discharge lamp includes: an arc tube made by winding a glass tube into double spiral configuration; a holding member that is in a form of a cylinder with a closed bottom and is for holding the arc tube; an electronic ballast for lighting the arc tube; a case in a cone form for covering the electronic ballast by being fit to a circumferential wall of the holding member; and a globe covering the arc tube. When an inner diameter of the arc tube is represented as Di mm, and tube wall loading of the arc tube is represented as L W/cm2, rectangular coordinates (Di, L) are confined within a range defined by points of: (2.5, 0.31), (4.0, 0.35), (5.5, 0.30), (6.5, 0.19), and (2.5, 0.01).
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: March 24, 2009
    Assignee: Panasonic Corporation
    Inventor: Shiro Iida
  • Patent number: 7503822
    Abstract: In an electron-emitting device manufacturing apparatus for forming a surface conduction electron-emitting element by a conductive thin film, a discharge head of a piezo-jet type using a piezoelectric element has a diameter being equal to or less than ?25 ?m and jets a solution that includes metal micro-particle material for forming the conductive thin film, on the area between the electrodes, which are formed on a substrate of the electron-emitting device, as a droplet. A volatile component in a solution dot pattern is vaporized after the droplet is jetted on the substrate so that a solid content is remained on the substrate. The solution having micro-particle dispersed in liquid satisfies a relationship of 0.0002?Dp/Do?01 where Dp denotes a diameter of the metal micro-particle and Do denotes a diameter of the discharge opening.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: March 17, 2009
    Assignee: Ricoh Company, Ltd.
    Inventor: Takuro Sekiya
  • Patent number: 7501756
    Abstract: An organic light emitting display which is constructed with a TFT substrate having an insulating substrate and a TFT that has at least a source electrode and a drain electrode, a lower electrode formed on the TFT substrate and connected to one of source/drain electrodes, an insulating layer having an opening that exposes a portion of the lower electrode, an organic thin film layer formed on the exposed portion of the lower electrode and the insulating layer, and an upper electrode formed on the organic thin film layer, wherein the insulating layer has a taper angle less than 40° at an edge of the opening, and a step less than or equal to 3,000 ? is formed between the lower electrode and the organic thin film layer. The organic light emitting display can prevent device failure.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: March 10, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Mu-Hyun Kim, Myung-Won Song, Tae-Min Kang, Seong-Taek Lee, Yu-Sung Cho
  • Patent number: 7498744
    Abstract: A plasma display panel and a method of fabricating the same are disclosed. In one embodiment, the plasma display panel includes i) a front substrate, ii) a rear substrate disposed to face the front substrate, iii) a dielectric wall disposed between the front and rear substrates to define discharge cells with the front and rear substrates, and having portions of different heights from each other, iv) a pair of sustain discharge electrodes including an X electrode and a Y electrode, embedded in the dielectric wall, and disposed to surround a discharge corner of the discharge cell, v) an address electrode embedded in the dielectric wall and disposed in a direction of crossing the Y electrode, and vi) red, green, and blue phosphor layers applied in the discharge cells. In one embodiment, a predetermined gap is formed between the front substrate and the dielectric wall due to a height difference between the portions of the dielectric wall where the address electrode is formed and is not formed, respectively.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 3, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jung-Suk Song
  • Patent number: 7497755
    Abstract: An apparatus for improving testability of electroluminescent displays (ELDs) comprises at least two sets of electrodes, one set for connecting rows of pixels, and a second set for connecting columns of pixels, wherein at least one electrode set is interleaved in two subsets. The first subset has electrode extensions of a first length, and the second subset has electrode extensions of a second, shorter, length. A first connector is disposed generally in a direction perpendicular to the electrode extensions of both subsets and in electrical contact with the electrode extensions of the second subset. A second connector is disposed generally in a direction perpendicular to the electrode extensions of the first subset, and in electrical contact with the electrode extensions of only the first subset. A set of insulating patches separate the electrode extensions of the first subset from the first connector.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: March 3, 2009
    Assignees: Ifire IP Corporation, Sanyo Electric Co., Ltd.
    Inventors: Hisashi Abe, Derek Luke
  • Patent number: 7498743
    Abstract: A very large area plasma display for indoor and outdoor application ranging in size to several feet in diagonal, incorporating plurality of ‘tiles’ of plasma pixels comprising plasma sustain electrodes and dielectric barrier on one substrate and address electrode on other substrate, the substrates being kept in alignment to oppose each other and orient plasma sustain electrodes, with dielectric barrier, orthogonal to address electrodes. The presence of the dielectric barrier enhances the path length of Hg-inert gas plasma resulting in increased UV generation and hence increased visible light that enhances the luminous efficiency of the large area plasma display. Plurality of plasma pixels are fabricated in a single panel called ‘tile’ and hermetically sealed. The ‘tiles’ are assembled to generate a large area plasma display thus eliminating the need for expensive process equipments and tedious procedures to handle large area substrates.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: March 3, 2009
    Inventor: Munisamy Anandan
  • Patent number: 7498739
    Abstract: An organic polarized light source is provided that includes a substrate, a striated layer, and an anode formed on the substrate. The organic polarized light source further includes an organic hole transport layer formed on the anode, an organic electron transport layer formed on the hole transport layer, and a cathode formed on the electron transport layer.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 3, 2009
    Assignee: Rockwell Collins, Inc.
    Inventors: Martin J. Steffensmeier, Thomas A. Seder
  • Patent number: 7492083
    Abstract: An alkaline earth aluminate phosphor for a cold cathode fluorescent lamp, which is represented by the compositional formula a (P1-xEux)O.(Q1-yMny)O.bAl2O3 and which is characterized by emitting light when irradiated with ultraviolet rays having a wavelength of from 180 to 300 nm (provided that in the above formula, P represents at least one alkaline earth metal element selected from Ba, Sr and Ca, Q represents at least one bivalent metal element selected from Mg and Zn, and a, b, x and y represent numbers which satisfy 0.8?a?1.2, 4.5?b?5.5, 0.05?x?0.25 and 0.2?y?0.4, respectively).
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 17, 2009
    Assignee: Kasei Optonix, Ltd.
    Inventor: Reiji Otsuka
  • Patent number: 7486023
    Abstract: A plasma display panel having discharge electrodes of a particular arrangement and structure is disclosed. In one aspect, the plasma display panel includes a front substrate; a rear substrate facing the front substrate; a dielectric wall disposed between the front and rear substrates and defining discharge cells with the front and rear substrates; an X electrode embedded within the dielectric wall and disposed to span a first corner of the discharge cell; a Y electrode embedded within the dielectric wall and disposed to span a second corner of the discharge cell that is opposite the first corner; an address electrode embedded within the dielectric layer and disposed in a direction crossing the Y electrode; and red, green, and blue phosphor layers applied in the discharge cells. Since the Y electrode and the address electrode are positioned to be adjacent to each other, the distance between the electrodes is reduced, and low voltage operation and high speed addressing can be achieved.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: February 3, 2009
    Assignee: Samsung SDI Co., Ltd
    Inventor: Jung-Suk Song
  • Patent number: 7482750
    Abstract: A preferred embodiment plasma extraction microcavity plasma device generates a spatially-confined plasma in a gas or vapor, or gas and vapor mixture, including, for example, atmospheric pressure air. A microcavity plasma device is excited by a potential applied between excitation electrodes of the microcavity plasma device, and a probe electrode proximate the microcavity is maintained at the potential of one of the electrodes, extracts plasma from the microcavity plasma device. In preferred embodiments, the excitation electrodes of the microcavity plasma device are isolated from the plasma by dielectric, and time-varying (AC, RF, bipolar or pulsed DC, etc.) potential excites a plasma that is then extracted by the probe electrode. In alternate embodiments, the microcavity plasma device has an excitation electrode that contacts the plasma. A DC potential excites a plasma that is then extracted by the probe electrode.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: January 27, 2009
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: J. Gary Eden, Sung-Jin Park
  • Patent number: 7479730
    Abstract: A field emission device (FED) includes an electrostatic lens structure.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: January 20, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Sik Oh
  • Patent number: 7477014
    Abstract: Disclosed is an organic electroluminescent device including: a panel; a partition that defines a plurality of hollows arranged in an anisotropic form in a plan view on the panel; a luminescent portion formed by individually coating a coating solution containing an electroluminescent material on each of the plurality of hollows and drying out the coating liquid coated on the hollows; and a drain means that is formed in the partition to drain part of the coating liquid coated on the hollow so that a surface of the luminescent portion can be flattened.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: January 13, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Mitsuya
  • Patent number: 7474052
    Abstract: Provided herein is a plasma display panel. The plasma display panel comprises a front substrate, a rear substrate opposite to the front substrate and having address electrodes formed thereon, a lattice-shaped partition wall formed between the front substrate and the rear substrate, a phosphor applied to a discharge space partitioned by the partition wall, and a plurality of scanning electrodes and common electrodes formed in intersection regions of the partition wall and extending perpendicular to the front substrate. The plasma display panel has a sufficient aperture ratio, and thus has enhanced light emitting efficiency. The scanning electrodes and the common electrodes formed in the intersection regions of the partition walls have a vertical construction, thereby effectively preventing the phosphor from being damaged by the plasma. Discharge uniformly occurs at the outer periphery of the discharge cell, thereby inducing effective excitation of the phosphor.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: January 6, 2009
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Yeol Park, Byeung Gyu Chang, Ki Pyo Hong
  • Patent number: 7466070
    Abstract: An electron gun includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, each of said plurality of focusing electrodes being perforated by a plurality of beam passage apertures and an anode electrode, wherein a pitch between ones of said plurality of beam passage apertures of a one of said plurality of focusing electrodes arranged closest to the second electrode is smaller than a pitch between ones of said plurality of the beam passage apertures of a remaining of said plurality of focusing electrodes.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: December 16, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Gon Hong, Yeoung-Uk Nam, Kyou-Bong Lee