Screen Patents (Class 313/461)
  • Patent number: 10896220
    Abstract: A method of searching an image file includes: utilizing a login module to log in a user account; utilizing an input module to store an image file at a predetermined location; utilizing an information capturing module to capture at least one image information of the image file stored at the predetermined location; utilizing an index building module to build at least one index tag corresponding to the image file according to the at least one image information captured by the information capturing module; utilizing a searching module to receive at least one searching condition so as to search the at least one index tag according to the at least one searching condition; and utilizing a display module to display a searching result corresponding to the image file when the at least one index tag matches with the at least one searching condition.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: January 19, 2021
    Assignee: AVISION INC.
    Inventors: Chun-Chieh Liao, Chun-Ping Huang, Hung-Jen Lin
  • Patent number: 10539827
    Abstract: A display device and a method of manufacturing a display device are provided. A display device includes a first substrate, sub-pixel electrodes adjacent to each other on the first substrate, a second substrate positioned opposite to the first substrate, a light-transmitting pattern on the second substrate and at least partially overlapping with the first sub-pixel electrode, a wavelength conversion pattern on the second substrate, a first black matrix filling a separation space between a side surface of the light-transmitting pattern and a side surface of a first wavelength conversion pattern and including a first surface facing the first substrate and a second surface facing the second substrate, and the first surface of the first black matrix is wider than the second surface of the first black matrix, and a first surface of a second wavelength conversion pattern is wider than a second surface of the second wavelength conversion pattern.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: January 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sung Woon Kim
  • Patent number: 10428186
    Abstract: Multi-component particles comprising inorganic nanoparticles distributed in an organic matrix and processes for making and using same. A flowing aerosol is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains a liquid vehicle and at least one precursor. At least a portion of the liquid vehicle is removed from the droplets of precursor medium under conditions effective to convert the precursor to the nanoparticles or the matrix and form the multi-component particles.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 1, 2019
    Assignee: SICPA HOLDING SA
    Inventors: Toivo T. Kodas, Mark J Hampden-Smith, Scott T. Haubrich, Heng Yu, Ned J. Hardman, Ralph E. Kornbrekke, Aaron Stump, Klaus Kunze, David Dericotte, Karel Vanheusden
  • Patent number: 10310324
    Abstract: The invention provides a backlight module, using blue backlight to excite the red, green QD films to obtain red and green fluorescence; and disposing two metal wire grids on both sides of the green QD film to form a Fabry-Perot cavity, the Fabry-Perot cavity able to select and enhance luminance intensity of a specific wavelength selected from the green light emitted by the green QD film so as to improve color purity and luminous intensity of the green light, and thus increase the color gamut of the backlight module, as well as improve the luminous efficiency of the green QD film, and significantly improve the low efficiency problem of fluorescence QD film. Moreover, the metal wire grid may form a brightness enhancing structure with the reflective layer of the backlight module to save setting up a brightness enhancing structure and reduce the thickness of the backlight module.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 4, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guowei Zha
  • Patent number: 10014803
    Abstract: A wasted heat harvesting device for harvesting electricity including a switching device configured to convey a magnetic field from a first region to at least a second region when the temperature of the switching device crosses a predetermined temperature.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: July 3, 2018
    Assignee: SAINT-AUGUSTIN CANADA ELECTRIC INC.
    Inventors: Rainer Krause, Bruno Ghyselen
  • Patent number: 10007040
    Abstract: A display unit includes a plurality of light-emitting sections and an optical filter. The plurality of light-emitting sections emit color light beams having different colors. The optical filter is disposed on light emission side of the plurality of light-emitting sections, and transmits the color light beams while selectively removing a part of a wavelength band of the color light beams. The optical filter includes the first filter layer and the second filter layer. The first filter layer transmits a first band including a center wavelength out of the wavelength band of each of the color light beams, and removes a second band that is at least a part of a band other than the first band. The second filter layer reduces transmissivity of a third band that is a part of the first band of at least one color light beam out of the color light beams.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 26, 2018
    Assignees: Joled Inc., Japan Display Inc.
    Inventors: Toshihiro Fukuda, Kaoru Abe, Hideki Kobayashi
  • Patent number: 9972751
    Abstract: A method for manufacturing a wavelength conversion member includes: forming a phosphor layer on a base body including phosphor particles and oxide particles affixed to surfaces of the phosphor particles; and forming a cover layer covering the surfaces of the phosphor particles and surfaces of the oxide particles continuously, and having a same oxide material as the oxide particles. A wavelength conversion member includes: a base body, a phosphor layer disposed on the base body and including phosphor particles and oxide particles affixed to surfaces of the phosphor particles; and a cover layer covering the surfaces of the phosphor particles and surfaces of the oxide particles continuously, and including a same oxide material as the oxide particles.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 15, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Naoki Saka, Jun Kawamata, Isamu Niki
  • Patent number: 9817313
    Abstract: A laminated structure for use as a thy film photoresist, which includes a supporting layer, a photosensitive resin layer and a protective layer. The protective layer is a polyester film that has a maximum surface roughness between 1,500 nm and 2,500 nm, and a sheet resistance between 1×108?/? and 1×1012?/?. The laminated structure is particularly applicable to the manufacture of a photosensitive device and a circuit of a printed circuit board or a lead frame.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 14, 2017
    Assignee: Eternal Materials Co., Ltd.
    Inventors: Shin Yi Li, Jen Yu Liu
  • Patent number: 9441291
    Abstract: A method of depositing a continuous TiN film on a substrate is provided. In the method, a continuous TiO2 film is deposited on a substrate, and then a continuous TiN film is deposited on the continuous TiO2 film. The TiN film is thicker than the TiO2 film.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: September 13, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Takeshi Kumagai, Muneyuki Otani
  • Patent number: 9281351
    Abstract: An organic light-emitting display apparatus may include a substrate; a thin-film transistor (TFT) disposed on the substrate, and having an active layer, a gate electrode, a source electrode and a drain electrode; a signal line formed on the same layer as the source electrode and the drain electrode; a first insulating layer covers the signal line, the source electrode, and the drain electrode; a pixel electrode formed on the first insulating layer, and electrically connected to the TFT; a pixel-defining layer formed on the first insulating layer, includes an opening exposing the pixel electrode; an intermediate layer formed on the pixel electrode, and includes a light-emitting layer; and an opposite electrode formed on the intermediate layer. The intermediate layer is formed on the pixel-defining layer so as to overlap with the signal line.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 8, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Wook Kim, Dong-Wook Park
  • Patent number: 9223128
    Abstract: This disclosure provides systems, methods and apparatus for reducing undesired capacitance and electrostatic attraction among components of electromechanical systems (EMS) displays. An apparatus includes an array of display elements, a control matrix, and an electric insulation layer. The display elements each include a movable light blocking component coupled to a conductive beam. The control matrix includes a plurality of interconnects, including at least one switched interconnect, which passes under and is electrically isolated from at least one of the conductive beam and the movable light blocking component.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: December 29, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Jignesh Gandhi, Stephen R. Lewis, Timothy J. Brosnihan
  • Patent number: 8446088
    Abstract: A field emission device for emitting white light is provided. The device includes a cathode plate assembly (1), an anode plate assembly (2) which is opposite to and spaced from the cathode plate assembly (1), and a supporting body (3) for tight coupling the cathode plate assembly (1) with the anode plate assembly (2). The anode plate assembly (2) includes a transparent substrate (203) which can emit yellow light when excited by blue light. An anode (202) and a blue cathode ray luminescent material layer (201) are provided on the surface of the transparent substrate (203). The blue cathode ray luminescent material layer (201) contains blue cathode ray luminescent material.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: May 21, 2013
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Wenbo Ma
  • Patent number: 8241418
    Abstract: The present invention provides a producing method of powder particles having an average particle diameter on the order of submicrons. Specifically, the producing method is a producing method of powder particles obtained by grinding a product to be ground by using plural grinding media, wherein the grinding media including at least one kind (grinding medium A) having an average particle diameter of 0.01 to 5 times and at least one kind (grinding medium B) having an average particle diameter of 10 to 450 times, with respect to the average particle diameter of the product to be ground before being ground, are used.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 14, 2012
    Assignee: TORAY Industries, Inc.
    Inventors: Kazuki Shigeta, Atsushi Ikeda
  • Patent number: 8138664
    Abstract: A display screen of a color display is disclosed (see FIG. 1). The display screen includes a glass plate having an array of three different color-emitting phosphors thereon. A graphite-based matrix is placed in the interstitial regions between each of the three different color-emitting phosphors. The graphite-based matrix is formed from an aqueous composition including graphite, potassium silicate and sodium silicate.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: March 20, 2012
    Assignee: Thomson Licensing
    Inventors: Barry Michael Cushman, David Paul Ciampa, James Francis Edwards
  • Publication number: 20110305314
    Abstract: A field emission type electron emitting device includes a cathode including a mixture of a lanthanum oxide and a molybdenum oxide.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 15, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shin Kitamura, Naofumi Aoki, Yoichi Murakami, Kota Aoki, Takeo Tsukamoto
  • Patent number: 7994695
    Abstract: A RGB phosphor system for a carbon nanotube (CNT)/field emission device (FED) display operated between about 4-10 kV. The RGB phosphor system is formed on an interior surface of a screen of the CNT/FED display. The RGB phosphor system includes ZnS:Cu, Al (green phosphor), ZnS:Ag,Cl (blue phosphor) and Y2O2S:Eu+3 (red phosphor). The average particle size for each of the green, blue and red phosphors should be about 3-4 microns.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: August 9, 2011
    Assignee: Thomson Licensing
    Inventors: Brian Thomas Collins, Peter Michael Ritt, David Paul Ciampa, James Kleppinger
  • 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
  • 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: 7737219
    Abstract: The present invention relates to an adhesive composition for an electro-magnetic shielding film and an electro-magnetic shielding filter using the same, and more particularly to an adhesive composition for an electromagnetic shielding film comprising: a) an acrylic copolymer of i) (meth)acrylate ester monomers having C1, to C12 alkyl groups and ii) vinylic monomers having hydroxyl groups; and b) a multifunctional isocyanate crosslinking agent. The electro-magnetic shielding filter of the present invention offers good durability because transparentization is performed with an acrylic adhesive composition having no acidic groups, and thus oxidation of copper is prevented.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 15, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Wook Lee, In-Cheon Han, Jong-Cheol Park
  • Patent number: 7710036
    Abstract: A display apparatus includes a plasma display panel (PDP) and a filter having a panel side facing a display surface of the PDP and an opposing viewer side facing away from the display surface. The filter includes an external light shield having a first base unit and first pattern units. The first pattern units absorb external light from the viewer side and are substantially parallel to a first axis. The filter includes an electromagnetic interference (EMI) shield overlapping the external light shield. The EMI shield includes a second base unit and second pattern units. The second pattern units are conductive and substantially parallel to a second axis. An interior angle between the first axis and the second axis can be within a range of 40 to 50 degrees.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: May 4, 2010
    Assignee: LG Electronics Inc.
    Inventors: Hong Rae Cha, Ji Hoon Sohn, Sam Je Cho, Woo Sung Jang, Woon Seo Shin
  • Publication number: 20100060820
    Abstract: A liquid crystal display includes a liquid crystal display front end component joined to a field emission device backlighting unit. The field emission device backlighting unit has a cathode and an anode. The cathode is provided with a plurality of emitter cells. The anode is provided with a screen structure having a plurality of phosphor elements that are each formed as a substantially continuous stripe. Each of the phosphor elements has a plurality of the emitter cells aligned therewith.
    Type: Application
    Filed: December 18, 2006
    Publication date: March 11, 2010
    Applicant: THOMSAON LICENSING
    Inventors: James Kleppinger, Richard Hugh Miller, David Paul Ciampa, Peter Michael Ritt, Ernest Edwin Doerschuk
  • Patent number: 7638934
    Abstract: A fluorescent substance is provided, with includes a matrix composed of a compound having an AlN polytypoid structure represented by the following general formula (1), and a luminescence center element: (Al,M)a(N,X)b??(1) wherein, M is at least one metal excluding Al, X is at least one non-metal excluding N, and a and b are positive values.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: December 29, 2009
    Assignees: Kabushiki Kaisha Toshiba, National University Corporation Yokohama National University
    Inventors: Yumi Fukuda, Masaaki Tamatani, Hironori Asai, Naotoshi Matsuda, Ryosuke Hiramatsu, Keiko Albessard, Jun-ichi Tatami, Katsutoshi Komeya, Tohru Wakihara
  • Patent number: 7612342
    Abstract: The present application discloses methods and devices for increasing the light output of a scintillator. Using the methods of the present disclosure, a very high intensity electric field is applied to a scintillator exposed to ionizing radiation and provides light outputs that far exceeds those previously obtained in the art. The light output gains are very high, on the order of 10 to 100 times those obtained with prior methods, and will make it possible to achieve sufficient brightness to enable the use of a cathode ray tube or a field emission display in new devices. In the field of x-ray imaging, a bright scintillator will have tremendous potential in many important applications, such as computed tomography (CT), SPECT, diagnostic digital radiology, and the like.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: November 3, 2009
    Assignee: Radiation Monitoring Devices, Inc.
    Inventor: Vivek V. Nagarkar
  • Publication number: 20090251042
    Abstract: A display screen of a color display is disclosed. The display screen includes a glass plate having an array of three different color-emitting phosphors thereon. A graphite-based matrix is placed in the interstitial regions between each of the three different color-emitting phosphors. The graphite-based matrix is formed from an aqueous composition including graphite, an alkali silicate and titanium dioxide.
    Type: Application
    Filed: June 23, 2006
    Publication date: October 8, 2009
    Inventor: Barry Michael Cushman
  • Patent number: 7586252
    Abstract: A phosphor admixture includes a phosphor powder and a number of radiation capture electron emitters. The emitters are dispersed within the phosphor powder. A phosphor screen includes phosphor particles, radiation capture electron emitters and a binder. The emitters and phosphor particles are dispersed within the binder. An imaging assembly includes a phosphor screen configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the phosphor screen. The electronic device is configured to receive the optical signals from the phosphor screen and to generate an imaging signal.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: September 8, 2009
    Assignee: General Electric Company
    Inventors: Clifford Bueno, Steven Jude Duclos, David Michael Hoffman, John Michael Cuffe
  • Patent number: 7531951
    Abstract: An organic EL display device is provided with at least three light emitting regions. A first side of a virtual rectangle is in contact with part of the boundary of the first light emitting region. A second side of the virtual rectangle that is parallel or substantially parallel to the first side is in contact with portions of the boundaries of the second and third light emitting regions. A third side of the virtual rectangle that is perpendicular or substantially perpendicular to the first side is in contact with portions of the boundaries of the first and second light emitting regions. A fourth side of the virtual rectangle that is parallel or substantially parallel to the third side is in contact with portions of the boundaries of the first and third light emitting regions. The second and third light emitting regions have substantially the same width in the direction of extension of the third side.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: May 12, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shigetsugu Yamanaka
  • Patent number: 7527748
    Abstract: To provide a phosphor for an electron beam excitation with a small deterioration in an emission efficiency and capable of maintaining a high luminance, even when an excitation density of an electron beam for a phosphor excitation is increased. As raw materials, Ca3N2(2N), AlN(3N), Si3N4(3N), and Eu2O3(3N) are prepared, and the raw materials thus prepared are measured and mixed, so that a molar ratio of each element becomes (Ca+Eu):Al:Si=1:1:1. Then, the mixture thus obtained is maintained and fired for at 1500° C. for 3 hours, and thereafter crushed, to manufacture the phosphor having a composition formula Ca0.985SiAlN3:Eu0.015.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: May 5, 2009
    Assignees: DOWA Electronics Materials Co., Ltd., Nichia Corporation
    Inventors: Masahiro Gotoh, Akira Nagatomi, Kenji Sakane, Shuji Yamashita
  • Publication number: 20080278054
    Abstract: In an embodiment, a phosphor material composition comprises a phosphor powder and an additive, wherein the additive has an amount in a range of about 0.1%˜20% of the phosphor powder in weight. The material of the additive is selected from the group consisting of an energy absorption material and a conductive material and a combination thereof. In another embodiment, a phosphor material composition including a phosphor powder and an additive is provided, wherein the additive has an amount of 2.8 ppm˜32000 ppm. The material of the additive is also selected from the group consisting of an energy absorption material, a conductive material and a combination thereof.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 13, 2008
    Inventors: Chun-Min Hu, Ching-Hsiang Tseng, Lichun Yang, William Tang, Donghua Lan
  • Patent number: 7429340
    Abstract: Provided are a phosphor paste composition, a flat display device including the same, and a method of manufacturing the flat display device. The phosphor paste composition contains a phosphor with at least a heat-resistant material selected from a Group II atom-containing material, a Group III atom-containing material, and a Group IV atom-containing material, a binder, and an organic solvent. By using the phosphor paste composition, the deterioration of the phosphor can be prevented during a heat treating process. The flat display device includes a phosphor layer containing the phosphor coated with the heat-resistant material such that lifetime of the flat display device is increased and a permanent residual image phenomenon, the adsorption of water by the phosphor, and the like can be prevented.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: September 30, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Seung-Uk Kwon
  • Patent number: 7400084
    Abstract: An electron emission display including an electron emission substrate having at least one electron emission device formed thereon and an image forming substrate spaced apart from the electron emission substrate. The image forming substrate includes an effective region where electrons emitted from the electron emission device collide with the effective region to form images and a black region surrounding the effective region. The effective region includes a fluorescent layer formed in an arbitrary pattern and a metal layer formed on the fluorescent layer. The metal layer has a structure extending onto at least a portion of the black region.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 15, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Zin Min Park, Jong Sick Choi, Seung Joon Yoo, Soo Joung Lee, Jung Ho Kang, Su Kyung Lee
  • Patent number: 7361417
    Abstract: A phosphor layer having improved contrast and brightness characteristics and a display device including the same are provided. The phosphor layer is made out of an ultra-fine pigment, a dispersant, a phosphor, a photosensitizer and a binder. The phosphor has a uniform distribution along the thickness of the phosphor layer, and the pigment varies in content over the thickness of the phosphor layer. A method of forming the phosphor layer is based on existing phosphor layer processes and includes a reduced number of processing steps than a filter screen method, thereby markedly lowering the manufacturing costs. The phosphor layer can be used in a cathode ray tube, a plasma display panel, a field emission display, and an organic electroluminescent device.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: April 22, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Byung-Heun Kang, Jong-Sang Lee, Jae-Hong Lim, Seok-Hwan Cha, Hong-Kyu Choi
  • Patent number: 7315114
    Abstract: A display apparatus includes a face plate that constitutes a part of a vacuum envelope, a phosphor layer formed on an inner surface of the face plate, and an electron beam source that emits electron beams to the phosphor layer. The face plate includes a light-emitting glass layer containing a light-emitting substance that emits light when electron beams are projected thereon. By extracting energy of electron beams, which have reached the face plate, as light, it is possible to reduce browning that occurs in the face plate and improve brightness of a display image significantly.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: January 1, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masaki Nishikawa, Hidetsuga Matsukiyo
  • Publication number: 20070284990
    Abstract: A wireless-emitting major-and-minor models recording method comprises major and minor units wherein the major and minor units are respectively equipped with a control circuit panel built therein, and the control circuit panel of the major unit is equipped with an emitting device to reciprocally correspond to a receiving device and a recording device built in the control circuit panel of the minor unit. Via the aforementioned structure thereof, the major and minor units are correspondingly matched to each other to form a wireless emitting-and-receiving system and provide a synchronized wireless digital recording function without being influenced by the surrounding environment, achieving the best sound-receiving effect and recording quality thereby.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 13, 2007
    Inventor: Kuo Chih Wu
  • Patent number: 7301264
    Abstract: Frusto-conical needle-shaped light guide paths are implanted on the surface of a display panel such that output light from display elements propagate through the needle-shaped light guide paths through total reflection, while external light repeats reflections multiple times on wedge-shaped surfaces of the light guide paths, and attenuates. A light absorbing film is coated on the surfaces of the needle-shaped light guide paths to increase a contrast ratio. Thus, a higher contrast can be accomplished in a bright room, and cross-talk between adjacent pixels is reduced. A reduction in contrast due to display light is also alleviated by employing longer implanted needle-shaped light guide paths, and bringing light incident surfaces of the needle-shaped light guide paths into close contact with the surface of the display panel.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: November 27, 2007
    Assignee: Hitachi, Ltd.
    Inventor: Michitaka Ohsawa
  • Patent number: 7297386
    Abstract: An antireflection structure (10) comprises a base (1), and a finely roughened antireflection part (2) formed in a surface of the base (1). The finely roughened antireflection part (2) includes a plurality of projections and depressions defined by the projections. The projections are distributed such that PMAX??MIN, where PMAX is the biggest one of distances between tips (2t) of the adjacent projections and ?MIN is the shortest one of wavelengths of visible light rays in a vacuum. The sectional area of each projection in a plane parallel to the surface of the base (1) increases continuously from the tip (2t) toward the bottom (2b) of the depression adjacent to the projection. The shape (2Mt) of a tip part (Mt) of each projection in a plane perpendicular to the surface of the base (1) is sharper than the shape (2Mb) of a bottom part (Mb) of each depression in the same plane vertical to the surface of the base (1).
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 20, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshiyuki Suzuki, Arimichi Ito, Nobuhito Toyama
  • Patent number: 7291963
    Abstract: A front substrate is provided which has a phosphor screen including a phosphor layer and a black light-blocking layer, a metal back layer which is laid over the phosphor screen and is composed of a plurality of strip-shaped divisional electrodes, a getter layer which is laid over the metal back layer, and a dividing layer which electrically divides the getter layer over the black light-blocking layer. The dividing layer has electrical conductivity.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: November 6, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yuuji Haraguchi
  • Patent number: 7291964
    Abstract: The present invention relates to a color cathode ray tube and more specifically to a color cathode ray tube in which mechanical stress due to internal pressure made by evacuation is decreased. According to an aspect of the present invention, a cathode ray tube includes a panel on inner surface of which a phosphor screen is formed, a funnel joined to the panel, and an electron gun generating electron beams wherein the panel satisfies a condition: CFT/SET?0.92 wherein CFT is thickness of central portion of the panel and SET is thickness of skirt portion of the panel.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: November 6, 2007
    Assignee: LG. Philips Displays Korea Co., Ltd.
    Inventor: Sung Hun Kim
  • Patent number: 7279828
    Abstract: A glass panel for use in a cathode ray tube includes a face portion for displaying images; a skirt portion extending from a periphery of the face portion backwards; and a blend radius portion for connecting the face portion and the skirt portion. The face portion is provided with an effective screen and a wedge portion positioned near a periphery portion of the effective screen. Compressive stress layers are formed on any regions of an inside and an outside surface of the face portion and the skirt portion, and a maximum compressive stress value ?Fmax of the face portion and a minimum compressive stress value ?Smin of the skirt portion satisfy a relationship of ?Smin/?Fmax<0.5.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: October 9, 2007
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Gue Chul Jang, Jae Seon Kim, Hyo Keun Lee
  • Patent number: 7227302
    Abstract: Optical filter layers that transmit only light with a desired wavelength are provided in a non-formation region of an optical absorbing layer formed on an inner surface of a glass panel, and phosphor layers that emit either one of red, green, and blue light are provided on the optical filter layers. The optical filter layers transmit blue light. Assuming that the thickness of the optical filter layer underlying the phosphor layer that emits blue light is t1, and the thickness of the optical filter layers underlying the phosphor layers that emit red and green light is t2, a relationship: t1>t2 is satisfied. Because of the above configuration, a color cathode-ray tube is provided, which can be produced at low cost with satisfactory yield with less peeling of a phosphor layer.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: June 5, 2007
    Assignee: Matsushita Toshiba Picture Display Co., Ltd.
    Inventors: Keisuke Iida, Hidemi Matsuda
  • Patent number: 7221082
    Abstract: A panel for use in a cathode ray tube includes a face portion for displaying picture images, a skirt portion extending backward from a perimeter of the face portion and a blend radius portion joining the skirt portion to the face portion. The panel for use in a cathode ray tube has average outside curvature radius R (mm) of the face portion which satisfies the following relationship: R?10,000; wedge rate Td/Tc of the face portion which satisfies the following relationship: 2.0?Td/Tc?2.6; maximum compressive surface stress ?Cmax (MPa) of the face portion and the skirt portion which satisfies the following relationship: ?30??Cmax??15; and tensile bending stress ?bt (MPa) at inner surface of the blend radius portion which satisfies the following relationship: ?bt?10.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: May 22, 2007
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Gue Chul Jang, Jae Seon Kim, Hyo Keun Lee
  • Patent number: 7211942
    Abstract: There is provided a radiation image conversion panel having a sufficient quantity of emitted light and high graininess. The radiation image conversion panel has a phosphor layer containing a stimulable phosphor and a binder. The phosphor layer has at least two layers, and an amount or weight of a binder to a stimulable phosphor in an uppermost layer of the phosphor layer is greater than that of a binder to a stimulable phosphor in other layer than the uppermost layer.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: May 1, 2007
    Assignee: Fujifilm Corporation
    Inventor: Hiroshi Ogawa
  • Patent number: 7202594
    Abstract: A display device which includes, a display panel, a red emitting fluorescent film, a green emitting fluorescent film, and a blue emitting fluorescent film, each of the fluorescent films being formed on an inner surface of the display panel. The red emitting fluorescent film contains red fluorescent particles having an average particle diameter ranging from 6 to 12 ?m and covered with red pigment having an average particle diameter ranging from 1/100 to 1/10 of the average particle diameter of the red fluorescent particles, the red emitting fluorescent particles are formed of Y2O2S:Eu, a concentration of Eu in the red emitting fluorescent film is 60 ppm or less, and the x-value of luminescent chromaticity of the red emitting fluorescent film is not less than 0.620.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: April 10, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Keisuke Iida, Hidemi Matsuda
  • Patent number: 7176611
    Abstract: A color CRT is disclosed to improve a production yield of a panel by reducing a damage due to a thermal impact in a furnace in a thermal treatment process in fabricating the panel and accomplish a light-weight product and a cost reduction compared to the same type CRT, for which a following condition is satisfied: ?1.7168*Ln(U)+11.627?(Rh*Rv*Ro/U)*Tc??2.0131*Ln(U)+13.645, where U is a diagonal size of an effective surface of the panel, Rh, Rv and Ro are parameters determined based on dimensions of the panel, and Tc is the thickness of the panel at its center point.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 13, 2007
    Assignee: LG. Philips Displays Korea Co., Ltd.
    Inventor: Sung-Han Jung
  • Patent number: 7166956
    Abstract: A metal back-attached phosphor screen comprises a metal back layer that has a high-reflectance, high-resistance layer consisting of an In-, Sn- or Bi-oxide layer. The metal back layer of the metal back-attached phosphor screen may have a laminate structure including a high-reflectance layer formed on a phosphor layer side and a high-resistance layer formed on that layer. The high-reflectance layer may be formed of Al, In, Sn or Bi. The high-resistance layer may be formed of an Al-, In-, Sn-, Bi- or Si-oxide or nitride. A high-brightness metal back-attached phosphor screen is provided that prevents the destruction or the deterioration of an electron emission element and a phosphor screen by discharging.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: January 23, 2007
    Assignees: Kabushiki Kaisha Toshiba, Nikka Techno, Inc., Fuji Pigment Co., Ltd.
    Inventors: Takeo Ito, Hajime Tanaka, Tomoko Nakazawa, Masaaki Inamura, Taichiro Nakayama, Takaaki Shinohara, Yoichiro Nakayama, Kazuo Sakai
  • Patent number: 7157843
    Abstract: A transfer film comprising a base film (11), a parting-agent layer (12), a protective film (13), and a metal film (14), the latter three being formed on the base film (11) in order, wherein the protective film (13) contains a softening agent such as a phosphate, an aliphatic monobasic acid ester, an aliphatic dibasic acid ester, or a dihydric alcohol ester. By using such a transfer film, a metal back layer is formed. Since the transfer layer of the transfer film has a surface resistivity of as high as 102–108 ?/, the surface resistivity of the formed metal back layer is high, and discharge is suppressed.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: January 2, 2007
    Assignees: Kabushiki Kaisha Toshiba, Nikka Techno, Inc., Fuji Pigment Co., Ltd.
    Inventors: Takeo Ito, Hajime Tanaka, Tomoko Nakazawa, Taichiro Nakayama, Takaaki Shinohara, Yoichiro Nakayama, Kazuo Sakai
  • Patent number: 7148616
    Abstract: A curve formed by an inner surface of a face panel in a cross-section including a tube axis of a color picture tube is defined. The face panel includes at least one cross-section in which the curve has an inflection point between a center of the face panel and a circumferential edge of an effective display region. Assuming that a maximum value of an angle formed by a tangent of the curve and a plane orthogonal to the tube axis between the center of the face panel and the inflection point is ?A, and a minimum value of an angle formed by the tangent of the curve and the plane orthogonal to the tube axis between the inflection point and the circumferential edge of the effective display region is ?B, the curve having the inflection point satisfies 0.6??B/?A<1.0. Because of this, a color picture tube having satisfactory screen quality can be provided.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: December 12, 2006
    Assignee: Matsushita Toshiba Picture Display Co., Ltd.
    Inventors: Hiroyuki Oda, Tohru Takahashi
  • Patent number: 7148617
    Abstract: A reflection type flat cathode-ray tube enhanced in quality of display image, and its manufacturing method are presented. A flat cathode-ray tube is composed by forming a grid layer, a reflective layer, and a fluorescent layer sequentially at the inner side of a screen panel. The reflective layer is preferably formed at the outer side of the circumference of the fluorescent layer. On a transfer substrate, a transfer foil laminating at least a fluorescent layer, a reflective layer, and a grid layer in this order is prepared, the grid layer side of the transfer foil is heated, pressed and adhered to the inner side of a screen panel, a transfer substrate is peeled off, and a fluorescent screen composed of the fluorescent layer, reflective layer, and grid layer is transferred.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: December 12, 2006
    Assignee: Sony Corporation
    Inventors: Jun Miura, Koichi Furui
  • Patent number: RE39739
    Abstract: A color picture tube is provided with a glass bulb in which the external surface of the effective display area of the face plate is formed substantially flat and a color selection mask, having the curvature projected toward the face plate, provided opposed to the internal surface of the face plate within the glass bulb. Therefore, the external surface is flat, the mechanical shock resistance characteristic is high, a tension can surely be applied to the color selection mask and moreover vibration of the color selection mask can be prevented even if external vibration is applied thereto.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: July 24, 2007
    Assignee: Sony Corporation
    Inventors: Yukinobu Iguchi, Ichiro Utsumi, Koji Saita
  • Patent number: RE41233
    Abstract: A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short sides parallel to each other and four rounded edges interconnecting each long side and the neighboring short side. The effective screen portion is structure such that a first line V1 interconnecting centers of the long sides, a second line H1 interconnecting centers of the short sides and a third line D1 interconnecting centers of the rounded edges opposite to each other meet at a point. The effective screen portion has a first thickness Tv at the centers of the long sides, a second thickness Th at the centers of the short sides, a third thickness Td at the centers of the edges and a fourth thickness Tc at the meeting point of the all three lines V1, H1 and D1.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 20, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do-Houn Pyun, Wan Kim, Chan-Yong Kim
  • Patent number: RE44162
    Abstract: To provide a phosphor for an electron beam excitation with a small deterioration in an emission efficiency and capable of maintaining a high luminance, even when an excitation density of an electron beam for a phosphor excitation is increased. As raw materials, Ca3N2(2N), AlN(3N), Si3N4(3N), and Eu2O3(3N) are prepared, and the raw materials thus prepared are measured and mixed, so that a molar ratio of each element becomes (Ca+Eu):Al:Si=1:1:1. Then, the mixture thus obtained is maintained and fired for at 1500° C. for 3 hours, and thereafter crushed, to manufacture the phosphor having a composition formula Ca0.985SiAlN3:Eu0.015.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: April 23, 2013
    Assignees: Dowa Electronics Materials Co., Ltd., Nichia Corporation
    Inventors: Masahiro Gotoh, Akira Nagatomi, Kenji Sakane, Shuji Yamashita