Polarizer Or Special Ray Transmission (e.g., Filter) Patents (Class 313/112)
  • Patent number: 7157840
    Abstract: An illuminating device is made from a transparent hollow envelope that encloses a filler gas. The envelope has inner and outer surfaces. The illuminating device has a coating of a fluorescent material deposited on the inner surface of the transparent envelope where the fluorescent material emits light having a visible component and an ultraviolet component; and a titanium dioxide film having first and second opposing surfaces where the first surface of the titanium dioxide film is formed on the outer surface of the transparent envelope. A light transmittance of the titanium dioxide film is at least 50% for light having a wavelength of 550 nm, and the light transmitted from the fluorescent material through the transparent envelope and the first surface of the titanium dioxide film to the second surface thereof causes photocatalytic activity to be generated on the second surface of the titanium dioxide film.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: January 2, 2007
    Assignees: Kanagawa Academy of Science and Technology, Nippon Soda Co., Ltd.
    Inventors: Akira Fujishima, Kazuhito Hashimoto, Tomokazu Iyoda, Shigemichi Fukayama, Tetsuo Yoshimoto, Tokuyoshi Saitoh
  • Patent number: 7157844
    Abstract: In a projection cathode ray tube device in which a projection cathode ray tube and a projection lens assembly are coupled and held by a coupler, superior focus characteristics and high resolution are realized by eliminating the deviation between the center of the phosphor screen of the cathode ray tube and the center of the lens assembly. In the cathode ray tube, each of the outside and inside surfaces of a faceplate is formed as a spherical convex surface which is curved toward an electron gun.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: January 2, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Tetsuo Asano, Kenji Kato
  • Patent number: 7157839
    Abstract: A LED package including an LED that emits excitation light at an excitation light wavelength and a layer of phosphor material positioned to receive the excitation light and having a first index of refraction at the excitation light wavelength. The phosphor material emits visible light at a visible light wavelength when illuminated with the excitation light. An interference reflector is positioned adjacent to the layer of phosphor material and a TIR promoting layer is in contact with the layer of phosphor material. The TIR promoting layer has a second index of refraction at the excitation light wavelength that is less than the first index of refraction at the excitation light wavelength.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: January 2, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, James E. Watson, Michael F. Weber
  • Patent number: 7149033
    Abstract: An improved light beam combiner is disclosed that creates a more uniform light source across the UV, Visual, and NIR range. It is an optical mechanical device made up of a standard high low dielectric thin film which, when placed at a 45 degree angle between a Deuterium lamp and a Halogen or Tungsten lamp, reflects the UV portion of a Deuterium lamp and passes the visual portion while also allowing the visual energy of a Halogen or Tungsten lamp to pass resulting in a more uniform light source for use in spectroscopy.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: December 12, 2006
    Assignee: Ocean Optics, Inc.
    Inventor: Philip E. Buchsbaum
  • Patent number: 7147937
    Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer including a light emitting material that contains an organometallic complex comprising (1) a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and (2) a diazole group ligand wherein the ligand has a fused aromatic ring group including a nitrogen of the diazole as a bridgehead nitrogen. The device provides useful light emission.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: December 12, 2006
    Assignee: Eastman Kodak Company
    Inventors: Barbara B. Lussier, Joseph C. Deaton, David J. Giesen
  • Patent number: 7138191
    Abstract: An organic electroluminescence device having a substrate, an electrode formed on the substrate, a light emitting layer formed on the electrode, the light emitting layer enabling injection of positive and negative electrical charges therein and an opposing electrode formed with respect to the light emitting layer so that the light emitting layer is arranged between the transparent electrode and the opposing electrode. The light emitting layer contains a light emitting substance for emitting light anisotropically, the light emitting substance having transition dipole moments attributable to a molecular skeleton thereof, and the transition dipole moments being oriented within an angular range from 0 degree to 70 degrees with respect to a direction normal to a side surface of the light emitting layer.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: November 21, 2006
    Assignee: Hitachi, Ltd.
    Inventor: Yasuo Imanishi
  • Patent number: 7135816
    Abstract: A color conversion filter substrate includes a transparent support substrate, one or more types of color conversion layers with a thickness more than 5 ?m formed on the support substrate in a desired pattern, and a protective layer formed of a transparent material for covering the support substrate and the color conversion layers and having a flat surface. After a display is produced, the color conversion pattern layers contain unsaturated functional groups at a concentration equal to or less than 1.4×10?3 mol/g.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 14, 2006
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Koji Kawaguchi, Yotaro Shiraishi, Yukinori Kawamura
  • Patent number: 7132791
    Abstract: An organic electroluminescence display. The display comprises a transparent electrode, a metal electrode and a organic thin layer which is disposed between the pair of electrodes and which includes a light emitting layer. The metal electrode has a reflection scattering property. Since the metal electrode has a reflection scattering property, the ambient light is reflected in various directions so that the reflected light returns and is incident on the color filter. In this way, within the incident light due to reflection scattering on any of the filter regions that has a different color from that of light already transmitted through the filter regions, light with different wavelength from that of the incident light is attenuated. Accordingly, the reflection of the ambient light is further attenuated.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: November 7, 2006
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Yoshifumi Kato
  • Patent number: 7131885
    Abstract: In an UV-reflecting layer for discharge lamps, the layer comprises at least 0.1% by weight of Al2O3 and at least 0.1% by weight of a material having a higher refractive index than Al2O3, so that as large a proportion of UV light as possible can be reflected and as large a portion of visible light as possible can be emitted by the lamp.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: November 7, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Volker Dirk Hildenbrand, Harald Glaeser, Cornelis Reinder Ronda, Claudia Mutter
  • Patent number: 7119479
    Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 10, 2006
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Nobuyuki Hori, Yoshimi Kawanami, Atsuo Ohsawa, Fumihiro Namiki
  • Patent number: 7116045
    Abstract: A display panel is provided that is capable of enhancing visibility outdoors and which can be easily manufactured. In a display panel in which at least one side thereof serves as a display surface, the display panel includes a first reflectance layer, which may be made of titanium, titanium nitride, or an alloy of titanium and tungsten and a second reflectance layer, which may be made of indium tin oxide, indium zinc oxide, or gallium zinc oxide, the first and second low reflection layer being deposited at positions corresponding to pixels on a substrate.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: October 3, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Yasushi Karasawa, Shigeo Nojima, Ryoichi Nozawa
  • Patent number: 7116542
    Abstract: A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provide a conductive path in response to receipt of electrical energy; and an element moveable in response to application of an electrical energy. The micro-switch may be formed of microelectromechanical system (MEMS) technology or microelectronics technology.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: October 3, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Nolan C. Lerche, James E. Brooks, Charles Cameron Abnet, Clarence H. Chui, Stuart B. Brown
  • Patent number: 7105989
    Abstract: A plasma lamp and method having high efficacy, high color rendering index, and a desirable correlated color temperature with improved color consistency from lamp to lamp. The lamp may include a vaporizable fill material comprising halides of sodium and scandium and a filter formed from a vitreous material containing a dopant. In one aspect, the filter is formed by a glass shroud containing neodymium oxide that reduces the transmission of yellow light.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: September 12, 2006
    Assignee: Advanced Lighting Techniques, Inc.
    Inventors: Abbas Lamouri, Juris Sulcs
  • Patent number: 7098589
    Abstract: Light-emitting devices, and related components, systems and methods are disclosed. The light-emitting device can include a multi-layer stack of materials and a support. The multi-layer stack of materials can include a light-generating region and a first layer supported by the light-generating. Thee light-generating region can be between the first layer and the support. The surface of the first layer can be configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer. The surface of the first layer can have a dielectric function that varies spatially according to a pattern. The pattern can be formed of holes in the surface of the first layer. The pattern is configured so that light generated by the light-generating region that emerges from the light-emitting device via the surface of the first layer is more collimated than a Lambertian distribution of light.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: August 29, 2006
    Assignee: Luminus Devices, Inc.
    Inventors: Alexei A. Erchak, Eleftrios Lidorikis, Chiyan Luo
  • Patent number: 7095164
    Abstract: Several embodiments in accordance with the invention are disclosed. In one particular embodiment, a display screen for a display is discussed.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: August 22, 2006
    Assignee: Intel Corporation
    Inventors: Lawrence A. Booth, Jr., Kannan Raj
  • Patent number: 7091661
    Abstract: A LED package includes an LED that emits excitation light and an optically transparent body. A layer of phosphor material is positioned to receive the excitation light and is disposed on or in the optically transparent body. The phosphor material emits visible light when illuminated with the excitation light. A reflective polarizer layer is disposed on or in the optically transparent body and is positioned to receive the emitted visible light.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: August 15, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Michael F. Weber
  • Patent number: 7090930
    Abstract: Disclosed is a useful electroluminescent device comprising a cathode, an anode, and therebetween a light emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material is represented by formula (1): X?-A-X???(1) wherein: A is selected from the group consisting of an unsubstituted phenylene ring, a biphenylene group, a terphenylene group, a naphthylene group, and a fluorene group; and each of X? and X? is an independently selected aromatic group bearing an ortho aromatic substituent.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 15, 2006
    Assignee: Eastman Kodak Company
    Inventors: Douglas R. Robello, Joseph C. Deaton, David J. Giesen, Christopher T. Brown, Jianmin Shi
  • Patent number: 7088042
    Abstract: In a flat display device having a pair of substrates for defining a gas discharge space in which a gas used to generate discharge luminance is sealed, means for absorbing or reflecting near infrared rays is included.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: August 8, 2006
    Assignee: Fujitsu Limited
    Inventors: Takatoshi Hirota, Hideo Kimura, Kazuo Imaoka, Satoshi Yokoyama, Mitsuharu Sato, Shiro Naoi, Takaaki Onoe
  • Patent number: 7087320
    Abstract: Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and an emitting dopant located between a cathode and an anode wherein the dopant is a naphthacene derivative represented by formula (I): wherein: a) said naphthacene derivative contains at least one fluorine or fluorine containing group; and b) when exactly two fluorine containing groups are present said groups are not located at the 5- and 12-positions or at the 6- and 11-positions.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: August 8, 2006
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Tukaram K. Hatwar, Manju Rajeswaran, Natasha Andrievsky
  • Patent number: 7071602
    Abstract: A filter for a plasma display panel provided with an antireflection optical film having a colorant, whereby when red light in a visible light range emitted from the plasma display panel is passed therethrough, a positional relation of a before passage position and an after passage position in a CIE xy chromaticity diagram of the red light, defines compensation for red color emission from the plasma display panel.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: July 4, 2006
    Assignee: Asahi Glass Company, Limited
    Inventors: Hirotoshi Terui, Ken Moriwaki
  • Patent number: 7070868
    Abstract: Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a 6-membered heteroaromatic ring group and to a nitrogen atom of a 5-membered heteroaromatic ring group, provided that the 5- and 6-membered heteroaromatic ring groups are further connected by an imine group, and provided that the 5-membered heteroaromatic ring group contains at least one additional heteroatom that is divalent or trivalent, and a process or device employing the device.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 4, 2006
    Assignee: Eastman Kodak Company
    Inventors: Margaret J. Helber, J. Ramon Vargas, Scott R. Conley
  • Patent number: 7067985
    Abstract: A display device of the present invention has light-emitting devices making up a plurality of pixels placed in a matrix form. In the display device of the present invention, the light-emitting devices each possesses an emissive layer and a reflective element placed on the rear surface of the emissive layer; the emissive layer possesses at the said of the front side, a polarization separator which separates the light emitted from the emissive layer into two kinds of polarized components by the reflection and the transmission, and phase plate; the emissive layer substantially maintains the sate of the polarization of the light transmitted there-through; the reflective element at least reflects the circularly polarized light impinging in the vertical direction mainly as a circularly polarized light having a reverse helicity direction; and the polarization separator has a reflectance of the wavelength range from 520 nm to 600 nm smaller than a reflectance of range not more than 540 nm.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: June 27, 2006
    Assignee: Hitachi Displays, Ltd.
    Inventor: Masaya Adachi
  • Patent number: 7067192
    Abstract: A transfer film capable of transferring thin films such as a conducting film, a heat absorption film onto a display apparatus panel, a method for fabricating thin films for a display apparatus panel using the transfer film, and a display apparatus having thin films fabricated by the method are provided. The transfer film is constructed by forming a conducting film layer and an adhesion layer on a base film. The transfer film is disposed on the display apparatus, and a heat pressure adhesive bonding process is performed to transfer the conducting film layer to the display apparatus. A high quality display apparatus is realized by fabricating a high quality conducting film using the transferring process.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: June 27, 2006
    Assignee: Sony Corporation
    Inventors: Koji Fujita, Katsutoshi Ohno, Kazumasa Nomura
  • Patent number: 7064892
    Abstract: A bandpass filter containing specific combinations of the dyes to yield filters which are adapted to selectively transmit predetermined primary color wavelengths of an electromagnetic spectrum as well as selectively absorb wavelengths other than the predetermined primary color wavelengths. The multiple bandpass filters are employed to improve the images on CRT screens and plasma display panels.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: June 20, 2006
    Assignee: Asahi Glass Company, Limited
    Inventors: Chia-Chi Teng, Suk Youn Suh, George Malinoski
  • Patent number: 7061168
    Abstract: The invention relates to a reflector for an infrared radiator, having a blackened Eloxal layer, and to an infrared radiator having a halogen incandescent lamp as radiation source and such a reflector.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: June 13, 2006
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventor: Hans-Joachim Schmidt
  • Patent number: 7045937
    Abstract: An electric lamp includes a light-transmitting lamp vessel which accommodates a light source. At least a part of the lamp vessel is provided with a light-absorbing coating which has stabilized pigments that are incorporated in a sol-gel matrix. Aminosilane is included in order to stabilize the pigments.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: May 16, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Marcel Rene Boehmer, Theodora Antonia Petra Maria Keursten
  • Patent number: 7045949
    Abstract: A display unit has R, G, and B light-emitting pixels arranged in a predetermined sequence. The R pixels and the B pixels each have a G-light-absorbing filter at the image display side (light output side or external-light incident side) thereof. The G pixels have no filters. The R and B light-emitting pixels each have a composite structure including a reflective layer, an organic EL layer, and a translucent reflective layer. The translucent reflective layer and the reflective layer constitute an optical resonator that causes multiple interference of light. The transmittance of the G-light-absorbing filter is minimized at the G wavelength, at which the sensitivity of the naked eye is high, and maximized at the R and B wavelengths. Furthermore, the external light reflectance of each pixel is minimized at the G wavelength. This display unit significantly suppresses a decrease in contrast caused by external light without a decrease in luminance of an image.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: May 16, 2006
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Yuichi Iwase
  • Patent number: 7038361
    Abstract: A plasma display panel structure having polarization plate is comprised of plasma display panel and filter, wherein the plasma display panel includes front glass and rear glass. Through the front glass, the plasma display panel displays images to the outside. The location of rear glass is corresponding to that of front glass and there is plasma enclosed between the rear glass and the front glass. The filter is a multiple-layer structure having polarization plate and is disposed upon the front glass. In this plasma display panel structure including plasma display panel having polarization plate, since the polarization plate is comprised in filter, so the showed picture is more color-contrasted and more three-dimensioned after the images showed by the plasma display panel passes through this filter.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 2, 2006
    Assignee: Optimax Technology Corporation
    Inventors: Yueh-Hsiang Hsu, Chien-Shu Lai, Ta-Wang Lai
  • Patent number: 7038362
    Abstract: The invention reduces the use of material for light-emitting elements in the production of a display apparatus. In a display apparatus, a plurality of light-emitting devices are arranged. Each light-emitting device is composed of a light-emitting unit and a driving circuit. The light-emitting unit includes a cathode, a transparent anode serving as a pixel electrode, and light-emitting elements interposed between the cathode and the anode. The driving circuit feeds a driving current to the anode. Further, an auxiliary electrode is disposed on at least one surface of the anode and is branched off from a feeding point of the driving circuit. The light-emitting elements are only disposed in regions adjacent to the auxiliary electrode, while light-transmitting members are disposed in the other regions distant from the auxiliary electrode.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 2, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Hirotsuna Miura
  • Patent number: 7029766
    Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Pt, Pd and Ir, and a tridentate (N^C^N) ligand, wherein the tridentate (N^C^N) ligand represents a ligand that coordinates to the metal through a nitrogen donor bond, a carbon-metal bond, and a nitrogen donor bond, in that order, wherein at least one of the nitrogen donors is part of an aromatic ring or an imine group. The invention also includes a display or room lighting device employing the device of the invention and a process of emitting light from the device of the invention. The device of the invention provides good luminance efficiency.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: April 18, 2006
    Assignee: Eastman Kodak Company
    Inventors: Shouquan Huo, Joseph C. Deaton, Allan F. Sowinski
  • Patent number: 7030556
    Abstract: A self light emitting display device having high level of the external coupling efficiency and high grade image presentation as no optical cross-talk or blur can be obtained by a new light-emitting element. The device is constructed as follows. A plurality of picture elements, each of which picture elements has an organic layer composing light emitting areas, a transparent electrode and a reflective electrodes, are formed on a substrate. Between the picture elements, a bank which has a tilted reflective surface is formed so that the light emitting area is surrounded by the bank wherein the transparent optical waveguide layer is formed as optically isolated for each of the picture elements.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: April 18, 2006
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
  • Patent number: 7019456
    Abstract: In an organic EL (electroluminescent) display device, which has a substrate having a first principal surface and a second principal surface opposed to the first principal surface and a light emitting material layer formed at the first principal surface of the substrate, a light absorption layer is provided for absorbing light in a wavelength band lying between 350 nm and 410 nm. This light absorption layer is provided at the second principal surface of the substrate opposite to the light emitting material layer and operates to shield the light emitting material layer from the light of the aforementioned wavelength band, which is selectively absorbed by the light emitting material layer. In this way, deterioration of the light emitting material layer can be avoided, so that the organic EL display device can maintain a sufficient display brightness even after being irradiated with excessive external light.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: March 28, 2006
    Assignee: Hitachi Displays, Ltd.
    Inventors: Akiko Yasukawa, Masato Ito
  • Patent number: 6992425
    Abstract: A high definition display apparatus having a wavelength selective absorption effect and an anti-static and anti-reflection effect is provided by thin films having a low resistance and a high refractive index. The high definition display apparatus has an anti-static and anti-reflection film composed of laminated oxide or metallic thin films, wherein at least three layers of oxide or metallic films having different reflectance from each other are laminated onto the front surf ace of the display apparatus, and the laminated films are composed such that an absorbing film containing coloring material is arranged under a high reflectance film as seen from the outer surface of the laminated films.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: January 31, 2006
    Assignees: Hitachi, Ltd., Hitachi-Device Engineering Co., Ltd.
    Inventors: Takao Ishikawa, Daigoro Kamoto, Tomoji Oishi, Ken Takahashi, Norikazu Uchiyama, Kiyoshi Miura, Masahiro Nishizawa, Toshio Tojo
  • Patent number: 6989112
    Abstract: A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: January 24, 2006
    Assignee: Asahi Glass Company Ltd.
    Inventors: Chia-Chi Teng, Suk Youn Suh, George Malinoski
  • Patent number: 6987355
    Abstract: An OLED device, having a pixel includes a plurality of individually addressable first white light emitting elements; a corresponding plurality of color filters located over the first white light emitting elements to filter the light emitted by the first white light emitting elements; and a second separately addressable white light emitting element located over the color filters for passing the filtered white light and emitting white light.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: January 17, 2006
    Assignee: Eastman Kodak Company
    Inventor: Ronald S. Cok
  • Patent number: 6984927
    Abstract: A display unit includes light emitting devices arrayed in such a manner as to be spaced from each other, and a sealing material for covering the surfaces of the light emitting devices, wherein the sealing material has a light diffusion function. The light diffusion function is given to the sealing material by providing a reflection mirror and a half mirror in the sealing material, dispersing, in the sealing material, fine particles having a refractive index different from that of the sealing material, or dispersing bubbles in the sealing material. Since the light diffusion function is given to the sealing material, the light emission region of each of the light emitting devices is substantially enlarged to a size nearly equal to an array pitch of the light emitting devices, to thereby obtain an image display excellent in viewability.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: January 10, 2006
    Assignee: Sony Corporation
    Inventors: Katsuhiro Tomoda, Toyoharu Oohata
  • Patent number: 6971938
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 6, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Patent number: 6969948
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 29, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Patent number: 6967435
    Abstract: An active matrix organic electroluminescent display device includes a first substrate and a second substrate facing and spaced apart from each other, a thin film transistor on an inner surface of the first substrate, a first electrode connected to the thin film transistor, an organic electroluminescent layer on the first electrode, a second electrode on the organic electroluminescent layer, a passivation layer on the second electrode, a black matrix on an inner surface of the second substrate, the black matrix includes a plurality of open portions, a color filter layer at the plurality of open portions, a color changing layer on the color filter layer, an overcoat layer on the color changing layer, and an adhesive film between the passivation layer and the overcoat layer.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: November 22, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae-Yong Park, Choong-Keun Yoo
  • Patent number: 6967062
    Abstract: An organic light-emitting diode (OLED) device which produces substantially white light includes an anode; a hole-transporting layer disposed over the anode; and a blue light-emitting layer having a host doped with a blue light-emitting compound disposed directly on the hole-transporting layer and the blue light-emitting layer being doped with an electron-transporting or a hole-transporting material or both selected to improve efficiency and operational stability. The device also includes an electron-transporting layer disposed over the blue light-emitting layer; a cathode disposed over the electron-transporting layer; and the hole-transporting layer or electron-transporting layer, or both the hole-transporting layer and electron-transporting layer, being selectively doped with a compound which emits light in the yellow region of the spectrum which corresponds to an entire layer or a partial portion of a layer in contact with the blue light-emitting layer.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 22, 2005
    Assignee: Eastman Kodak Company
    Inventors: Tukaram K. Hatwar, Michele L. Ricks, Dustin Winters, Jeffrey P. Spindler
  • Patent number: 6965191
    Abstract: The display filter is constituted by laminating a transparent adhesive layer (C) 31 containing dye, a polymer film (B) 20, a transparent electrically conductive layer (D) 10, a transparent adhesive layer (E) 40, and a functional transparent layer (A) 60 having an anti-reflection property, a hard coat property, a gas barrier property, an antistatic property and an anti-fouling property sequentially in this order, adhered on a display area 00; on this occasion, the transparent electrically conductive layer (D) 10 is grounded to a ground terminal of the display via an electrode 50 and an electrically conductive copper foil adhesive tape 80.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: November 15, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsuhiko Koike, Tomoyuki Okamura, Toshihisa Kitagawa, Hiroaki Saigo, Shin Fukuda, Fumiharu Yamazaki, Taizo Nishimoto, Tsutami Misawa
  • Patent number: 6960873
    Abstract: A novel CRT and method of making the CRT are disclosed. The CRT comprises an internal neutral density filter that lies between the phosphor deposits and the interior surface of the faceplate panel. The filter enhances the contrast of the CRT without compromising center to edge brightness ratio of the CRT. The filter comprises very fine particles, wherein the particles are black, gray, or a mixture of black and gray. The filter reduces the absorption of the faceplate by 25 to 75%. The invention is particularly useful for substantially flat CRTs. The method of producing the novel CRT comprises the steps of preparing a suspension of well-dispersed light-absorbing, carbon-containing particles which are 0.05 to 2 microns in aqueous media and applying the suspension onto the interior surface of the faceplate panel prior to applying at least one phosphor deposit. The suspension may also include suitable organic and inorganic binders and dispersing and wetting agents.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: November 1, 2005
    Assignee: Thomson Licensing
    Inventor: Himanshu Mukundray Patel
  • Patent number: 6958574
    Abstract: An image display device for providing antireflection and electromagnetic shielding effects is disclosed. The device has a faceplate, a coating panel made of glass, a plurality of coating layers laminated on one surface of the coating panel for performing antireflection and electromagnetic shielding functions, and an adhering layer for adhering the coating panel to the faceplate. The adhering layer may be an ultraviolet curable resin.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 25, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chong-In Chung, Chang-Seok Rho, Jong-Hwan Park, Tae-Il Yoon, Chang-Sub Lee
  • Patent number: 6956327
    Abstract: A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 18, 2005
    Assignee: Toshiba Lighting & Technology Corp.
    Inventors: Kiyoshi Nishio, Toshiya Tanaka, Takayuki Fujita, Takeo Yasuda
  • Patent number: 6956323
    Abstract: A color conversion filter substrate includes a transparent support substrate, at least one color conversion filter layer formed of a resin film containing a fluorescence colorant with a thickness of at least 5 ?m and arranged on the support substrate in a desired pattern, and a transparent gas-barrier layer formed in a flat film for covering the color conversion layer. The gas-barrier layer has a water-vapor permeability of 1.0 g/m2·24 hr or less, and a portion covering the color conversion filter layer with a thickness tPL expressed by the following equation, 0<tPL<0.1 W wherein W is a minimum width of a pixel.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 18, 2005
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Koji Kawaguchi, Yotaro Shiraishi, Yukinori Kawamura
  • Patent number: 6949872
    Abstract: A plasma display panel includes a filter for controlling a light transmittance by selectively diffracting a light emitted from a discharge cell of a plasma display panel on the basis of an electric signal. A luminance efficacy can be enhanced by using the low-priced filter and the contrast of a plasma display panel can be improved.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: September 27, 2005
    Assignee: LG Electronics Inc.
    Inventors: Myeong Soo Chang, Byung Gil Ryu
  • Patent number: 6949881
    Abstract: A discharge lamp of the short arc type in which a lead pin, located within a hermetically sealed tube, is prevented from being irradiated with light. Such a construction prevents the lead pin from undergoing a temperature rise thereby preventing the destruction of the hermetically sealed tube. The discharge lamp of the short arc type includes an arc tube adjoined laterally by hermetically sealed tubes through which a lead pin, which supports an electrode, is routed. The hermetically sealed tubes are sealed by graded glass on the lead pins, and the lead pin is prevented from being irradiated with light by providing the outside surface of the hermetically sealed tube, at least in part, with a high emissivity material and then providing a reflectivity material on the exterior surface of the emissivity material.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: September 27, 2005
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Norihiro Inaoka, Takafumi Kimura
  • Patent number: 6946788
    Abstract: A light-emitting element has a light-emitting layer and at lease one light-extracting portion. At least a partial part of the light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light. Another light-emitting element has a light-emitting layer and a concave or convex surface for reflecting light emitted from the light-emitting layer toward one or more other surfaces of the light-emitting element through an inside of the light-emitting element.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: September 20, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshinobu Suehiro, Masayoshi Koike, Hideaki Kato
  • Patent number: 6940226
    Abstract: Disclosed is a plasma display apparatus in which film-type front filter is connected. A plasma display apparatus of the present invention includes a panel formed by attaching an upper substrate to a lower substrate, an front filter attached to an entire surface of the panel and including extensions extending by predetermined lengths from edges of the panel in omni-directions, a back cover formed on a rear surface of the chassis base, and a filter supporter for electrically connecting the extensions to the back covers. The filter supporter is connected to the compass.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 6, 2005
    Assignee: LG Electronics Inc.
    Inventors: Young Sung Kim, Kyung Ku Kim, Hong Rae Cha, Myeong Soo Chang, Byung Gil Ryu
  • Patent number: 6936960
    Abstract: An OLED display device includes a substrate; an array of OLED elements disposed over one side of the substrate to emit light in a direction; circuitry to drive the OLED elements located beside the array of OLED elements on the substrate; a light absorbing material located above the circuitry in the direction of light emission; and a circular polarizer located above the circuitry, the OLED elements, and the light absorbing material in the direction of light emission.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: August 30, 2005
    Assignee: Eastman Kodak Company
    Inventor: Ronald S. Cok