Nonluminescent Layer Patents (Class 313/466)
  • Patent number: 10788669
    Abstract: A head-up display (HUD) assembly for a vehicle is provided. A backlight assembly case is made of a material having a thermal conductivity exceeding 15 W/mK and an emissivity of at least 0.8. A light source is provided. A thin film transistor (TFT) panel has a first axial surface and a second axial surface. A portion of light emitted from the light source transmits through the TFT panel from the first axial surface to the second axial surface, and a portion of the TFT panel is mounted to the backlight assembly case in a direct face-to-face relationship.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: September 29, 2020
    Assignees: DENSO INTERNATIONAL AMERICA, INC., DENSO CORPORATION
    Inventors: Emma Higashikawa, Juan Martinez, Yusuke Matsui, Keitaro Yoshioka
  • Patent number: 10615568
    Abstract: A method of manufacturing a LIDAR chip and applying an anti-reflection (AR) coating to a coupling structure of the LIDAR chip. The coupling structure if formed on a wafer. A pocket is formed in the wafer adjacent the coupling structure. The AR material is deposited on top of the wafer and coupling structure. The AR material is etched to form the AR coating on the coupling structure.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 7, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Keyvan Sayyah, Pamela R. Patterson, Biqin Huang
  • Patent number: 9709864
    Abstract: An array substrate and its manufacturing method, and a display device are disclosed, and the array substrate includes a black matrix (200) disposed on a base substrate (100) and has a plurality of pixel units arranged in an array, the orthographic projection of the pattern of the black matrix (200) on the base substrate at least partially covers the gap between adjacent pixel units, and the surface of at least a portion of the black matrix (200) has a first concave-convex structure (A) capable of reflecting the light irradiated to the surface of the black matrix (200) in diffuse reflection.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: July 18, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Seungjin Choi
  • Patent number: 9703191
    Abstract: A method of manufacturing a color conversion substrate includes preparing a substrate including a first pixel region, a second pixel region, and a third pixel region, forming a first color conversion portion corresponding to the first pixel region, forming a second color conversion portion corresponding to the second pixel region, and forming a third color conversion portion corresponding to the third pixel region. The providing the first color conversion portion includes providing a first color filter of a first color corresponding to the first pixel region, providing a first transparent pattern corresponding to the first pixel region, and providing a first pattern layer corresponding to the first pixel region and including a first material which converts light incident thereto into light of the first color, where the first transparent pattern is provided between the first color filter and the first pattern layer.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kisoo Park, Yongseok Kim, Youngmin Kim, Haeil Park, Boram Lee
  • Patent number: 9478402
    Abstract: A photomultiplier tube includes a semiconductor photocathode and a photodiode. Notably, the photodiode includes a p-doped semiconductor layer, an n-doped semiconductor layer formed on a first surface of the p-doped semiconductor layer to form a diode, and a pure boron layer formed on a second surface of the p-doped semiconductor layer. A gap between the semiconductor photocathode and the photodiode may be less than about 1 mm or less than about 500 ?m. The semiconductor photocathode may include gallium nitride, e.g. one or more p-doped gallium nitride layers. In other embodiments, the semiconductor photocathode may include silicon. This semiconductor photocathode can further include a pure boron coating on at least one surface.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: October 25, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: Yung-Ho Chuang, David L. Brown, John Fielden
  • Patent number: 9118034
    Abstract: A metal oxide thin film substrate for an organic light-emitting device (OLED) which exhibits superior light extraction efficiency and can be easily fabricated at low cost and a method of fabricating the same and a method of fabricating the same. The metal oxide thin film substrate for an OLED includes a base substrate and a metal oxide thin film formed on the base substrate, the metal oxide thin film being made of a mixture of at least two metal oxides having different refractive indices.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: August 25, 2015
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, June Hyoung Park, Young Zo Yoo, Seo Hyun Kim, Jeong Woo Park, Il Hee Baek, Gun Sang Yoon, Hyunhee Lee, Eun Ho Choi
  • Patent number: 9080252
    Abstract: An approach is provided for a method to manufacture a crystalline silicon ingot. The method comprises providing a mold formed for melting and cooling a silicon feedstock by using a directional solidification process, disposing a barrier layer inside the mold, disposing one or more silicon crystal seeds on the barrier layer, loading the silicon feedstock on the silicon crystal seeds, heating the mold to obtain a silicon melt, and cooling the mold by the directional solidification process to solidify the silicon melt into a silicon ingot. The mold is heated until the silicon feedstock is fully melted and the silicon crystal seeds are at least partially melted.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 14, 2015
    Assignee: Sino-American Silicon Products Inc.
    Inventors: Chung-Wen Lan, Ya-Lu Tsai, Sung-Lin Hsu, Chao-Kun Hsieh, Wen-Chieh Lan, Wen-Ching Hsu
  • 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
  • Patent number: 7749556
    Abstract: A method for manufacturing a field emission substrate is disclosed. The method includes the following steps: providing a substrate having a conductive layer; forming a hydrophobic layer on the conduction layer; patterning the hydrophobic layer; and removing the hydrophobic layer from the surface of the conductive layer so that the formed layer of electron-emitting materials can contact the surface of the conductive layer. The patterned hydrophobic layer can include plural bumps, and the pitches between the neighboring bumps are in a range of 1 ?m to 500 ?m. By way of the steps illustrated above, the emitting layer on the substrate can be made easily and arranged accurately. Hence, the electrons can be emitted homogeneously.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: July 6, 2010
    Assignees: Tatung Company, Industrial Technology Research Institute
    Inventors: Hung-Yung Li, Tsuey-May Yin, Tsai-Ling Ho
  • Patent number: 7531952
    Abstract: A front sheet that is a layered film glued on a front face of a display panel includes a front portion made of plural layers having the same plane size and different functions and a rear portion having a plane size smaller than the front portion and larger than the screen, and the rear portion is put on the front face of the display panel.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 12, 2009
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yoshimi Kawanami, Nobuyuki Hori, Atsuo Ohsawa, Fumihiro Namiki
  • Patent number: 7382089
    Abstract: A field emission display (FED). A vacuum assembly is formed with first and second substrates and a sealant. An electron emission assembly is formed on the first substrate and emits electrons by the formation of electric fields. An illumination assembly is formed on the second substrate and realizes a display of images by electrons emitted from the electron emission assembly. The illumination assembly includes a transparent conductive layer formed on the second substrate and having an anode input terminal that extends outside the vacuum assembly and to which an anode voltage is applied, a phosphor screen formed on the transparent conductive layer, and a metal layer formed on the phosphor screen within the vacuum assembly in such a manner that a portion of the metal layer contacts the transparent conductive layer.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: June 3, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae-Sik Oh
  • Patent number: 7365479
    Abstract: The present invention provides an optical filter for a display device capable to improve the bright-location contrast, and a display device in particular a plasma display device incorporating the optical filter. In a transmittance spectrum of the optical filter, a transmittance in a region having a wavelength range of 430 nm to 445 nm, a transmittance in a region having a wavelength range of 535 to 560 nm, and a transmittance in a region having a wavelength range of 605 to 630 nm are set to 80% or less of the maximum transmittance over the entire visible wavelength region.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: April 29, 2008
    Assignee: Pioneer Plasma Display Corporation
    Inventors: Tadahiko Kanoh, Takashi Furutani
  • 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: 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: 7075220
    Abstract: An image display unit having a structure in which a heat-resisting fine particle layer is formed on a metal back layer disposed on a phosphor layer, and a getter layer is deposited/formed on the heat-resisting fine particle layer by vapor-depositing. The fine particle layer is desirably formed in a specified pattern, and a filmy getter layer is formed in a pattern complementary to the former pattern. The average particle size of heat-resisting fine particles which may use SiO2, TiO2, Al2O3, Fe2O3 is 5 nm to 30 ?m. Since abnormal discharging is restricted, the destruction and deterioration of an electron emitting element and a phosphor screen are prevented to provide a high-brightness, high-grade display.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: July 11, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeo Ito, Tsuyoshi Oyaizu, Takashi Nishimura, Satoshi Koide, Hitoshi Tabata
  • Patent number: 7061171
    Abstract: A color cathode ray tube comprising a panel, said panel including an outer surface which is substantially flat and an inner surface on which a screen composed of red, green and blue phosphors is formed, wherein a screen transmittance of the panel increases and then decreases along a line from a center portion to a peripheral portion of the panel, thus to improve brightness uniformity of a center portion, a peripheral portion and a doming portion of the panel.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: June 13, 2006
    Assignee: LG.Philips Displays Korea Co., Ltd.
    Inventor: Ju-Sang Jung
  • Patent number: 7033712
    Abstract: A color filter luminescent screen assembly for a cathode ray tube (CRT) is disclosed. The luminescent screen assembly is formed on an interior surface of a faceplate panel of the CRT tube. The luminescent screen assembly includes a patterned light-absorbing matrix that defines a plurality of sets of fields corresponding to one of a blue region, a red region and a green region. A color filter is formed in one of the plurality of sets of fields. The color filter may be, for example, a blue pigment layer, a red pigment layer or a green pigment layer. After the pigment layer is formed, a cap layer is formed thereon. The cap layer is formed from an aqueous solution of a photosensitive material and a polymer. Thereafter, a phosphor layer is deposited on the cap layer.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: April 25, 2006
    Assignee: Thomson Licensing
    Inventors: Kangning Liang, Bhanumurthy Venkatrama Subrahmanya Gunturi
  • Patent number: 6998766
    Abstract: A screen composite provided on a face plate of a flat panel display device, said screen composite containing an aluminum layer and a metal layer formed on said aluminum layer for substantially reducing a halation phenomenon.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: February 14, 2006
    Assignee: LG Philips Displays Korea Co., LTD
    Inventor: Sang-Chul Ryu
  • Patent number: 6979948
    Abstract: There is disclosed an image forming apparatus in which electric discharge by a peeled metal back film is prevented. In the image forming apparatus provided with a rear plate having an electron emitting device, and a face plate having a conductive film and a fluorescent layer having fluorescent particles, the conductive film is disposed on the fluorescent layer. When an average thickness of the fluorescent layer is set to d, an average particle diameter of the fluorescent particles is rp, and the thickness of the fluorescent film is D, D?rp?d?D+rp is satisfied.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: December 27, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoya Onishi
  • Patent number: 6891322
    Abstract: A filter layer for a display and a method of preparing the filter layer, and a display including the filter layer, are provided. The filter layer for a display includes oxide particles and nano-sized metal particulates adhered to the surface of the oxide particles. A surface plasma resonance (SPR) phenomenon is triggered at the interface of the oxide/metal to selectively absorb light of at least one predetermined wavelength.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: May 10, 2005
    Assignee: Samsung SDI, Co., Ltd.
    Inventors: Jong-Hyuk Lee, Yoon-hyung Cho, Hae-Seung Lee, Dong-Sik Zang, Jung-Hwan Park
  • Patent number: 6861794
    Abstract: A display device (1) comprises a display screen (10) which comprises a blue color filter layer (24B) and a blue phosphor (25B). The blue phosphor is provided with or covered by blue pigments.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 1, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Remko Horne
  • Patent number: 6858977
    Abstract: The cathode-ray tube according to the present invention has on the inner surface of the funnel section of the body thereof a laminated layer comprising a first layer of black material, a metal backing layer and a second layer of black material. According to the configuration of the cathode-ray tube of the present invention, stray light reflected within the body of the cathode-ray tube is absorbed by the first layer of black material on the inner surface of the funnel, while stray light reflected off the inner surface of the funnel is absorbed by the second layer of black material. This makes it possible to reduce the amount of stray light incident upon the effective screen area of the panel section.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: February 22, 2005
    Assignee: Sony Corporation
    Inventors: Tsuneharu Nomura, Norihiro Ohse, Tomohiko Abe, Michihisa Yano, Seiji Kawaberi, Hisashi Kimura, Tsutomu Arai
  • Patent number: 6833663
    Abstract: A phosphor screen with metal back of the present invention has a degree of adhesion of 30% or more in the ratio of the contact area of a phosphor layer (2) and a metal back layer (3). The deterioration (film burning) of emission brightness in FED can be suppressed and the brightness characteristics can be improved. The film thickness of the metal back layer is set to 50 to 100 nm and the light transmittance thereof is set to 10% or less to provide a highly bright display with excellent reflectivity. The phosphor screen with metal back can be formed by transferring a metal film onto the phosphor layer formed on the internal surface of a translucent substrate by using a transfer film.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 21, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hajime Tanaka, Tomoko Nakazawa, Takeo Ito
  • Patent number: 6825604
    Abstract: The phosphor screen is capable of minimizing the spread of lights in the phosphor screen, so as to restrict fading images and lowering contrast. The phosphor screen comprises a lot of minute phosphor sections. The phosphor sections are respectively enclosed by barriers, which absorb visible lights and have electric conductance, and whose height is equal to or higher than a half of thickness of the phosphor sections. The barriers are made of a material including the particles of an inorganic compound, whose average diameter is 1-8 &mgr;m, and carbon particles, whose average diameter is less than 1 &mgr;m.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: November 30, 2004
    Assignee: Kabushiki Kaisha Kakuma
    Inventor: Lyuji Ozawa
  • Patent number: 6819040
    Abstract: A composition and method of forming an internal neutral density filter on a luminescent screen assembly of a cathode ray tube (CRT) is disclosed. The luminescent screen assembly is formed on an interior surface of a glass faceplate panel of the CRT tube. The luminescent screen assembly includes a patterned light-absorbing matrix that defines three sets of fields corresponding to one of a blue region, a green region and a red region. An internal neutral density filter is formed on the light-absorbing matrix. An array of blue, green and red color phosphors is formed on the internal neutral density filter corresponding to one of the blue region, the green region and the red region defined in the light-absorbing matrix. The internal neutral density filter has a composition including a red pigment, a blue pigment and at least one non-pigmented oxide particle.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: November 16, 2004
    Assignee: Thomson Licensing S. A.
    Inventors: Farzad Parsapour, Bhanumurthy Venkatrama Subrahmanya Gunturi, Steven Anthony Colbert, Brian Thomas Collins
  • Patent number: 6800344
    Abstract: A cathode ray tube glass comprises a clean cathode ray tube made of glass and a coating film composed of at least one water-soluble material selected from the group consisting of water-soluble salts, acids being solid at room temperature, monosaccharides and polysaccharides, which is formed on a glass surface of the cathode ray tube in an amount of 0.01-100 &mgr;g/cm2 or to a film thickness of 0.1-200 nm.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: October 5, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Mikio Sasaki, Satoshi Rokudai
  • Publication number: 20040151995
    Abstract: A color filter luminescent screen assembly for a cathode ray tube (CRT) is disclosed. The luminescent screen assembly is formed on an interior surface of a faceplate panel of the CRT tube. The luminescent screen assembly includes a patterned light-absorbing matrix that defines a plurality of sets of fields corresponding to one of a blue region, a red region and a green region. A color filter is formed in one of the plurality of sets of fields. The color filter may be, for example, a blue pigment layer, a red pigment layer or a green pigment layer. After the pigment layer is formed, a cap layer is formed thereon. The cap layer is formed from an aqueous solution of a photosensitive material and a polymer. Thereafter, a phosphor layer is deposited on the cap layer.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 5, 2004
    Inventors: Kangning Liang, Bhanumurthy Venkatrama Subrahmanya Gunturi
  • Patent number: 6765344
    Abstract: A color cathode ray tube having a panel portion includes a faceplate portion, a skirt portion, a neck portion and funnel portion. The faceplate portion has a screen to display an image, and the panel portion has a shadow mask installed therein. The neck portion accommodates an electron gun therein and the funnel portion connects the panel portion and the neck portion. A relation RDO−tc<RDI holds, wherein, RDO is a radius of curvature connecting the center of the screen and the diagonal edge of the screen of the outer surface of the faceplate, RDI is a radius of curvature connecting the center of the screen and the diagonal edge of the screen of the inner surface of the faceplate, and tc is a thickness of the faceplate at the screen center. A black matrix hole transmittivity in the diagonal direction peripheral areas is not greater than 110% of that of the central area.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: July 20, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Haruhiko Yoshida, Hiroshi Yoshioka
  • Patent number: 6756727
    Abstract: The invention describes a color picture screen with an enhanced contrast. The color picture screen comprises a color filter layer between the picture screen glass and the phosphor layer, which filter layer comprises a red pigment in the areas of the red phosphors, a blue pigment in the areas of the blue phosphors, and a blue or a red pigment in the areas of the green phosphors.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 29, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hans-Helmut Bechtel, Harald Gläser, Joachim Opitz
  • Publication number: 20040121183
    Abstract: A phosphor screen with metal back of the present invention has a degree of adhesion of 30% or more in the ratio of the contact area of a phosphor layer (2) and a metal back layer (3). The deterioration (film burning) of emission brightness in FED can be suppressed and the brightness characteristics can be improved. The film thickness of the metal back layer is set to 50 to 100 nm and the light transmittance thereof is set to 10% or less to provide a highly bright display with excellent reflectivity. The phosphor screen with metal back can be formed by transferring a metal film onto the phosphor layer formed on the internal surface of a translucent substrate by using a transfer film.
    Type: Application
    Filed: April 30, 2003
    Publication date: June 24, 2004
    Inventors: Hajime Tanaka, Tomoko Nakazawa, Takeo Ito
  • Patent number: 6727648
    Abstract: There is explained a plasma display panel that is capable of preventing discoloration of a substrate caused by migration of a metal bus electrode or metal paste's running down. A plasma display panel according to an embodiment of the present invention includes a transparent electrode; a metal bus electrode formed on the transparent electrode; and a black layer formed on a side surface of the transparent electrode and between the metal bus electrode and the transparent electrode.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 27, 2004
    Assignee: LG Electronics Inc.
    Inventor: Seok Dong Kang
  • Patent number: 6713953
    Abstract: Disclosed is a field emission display device which can prevent mixing of colors between the phosphor elements of the field emission display device. In the field emission display device, an upper substrate and a lower substrate are spaced apart with a predetermined gap and opposed to each other. Cathode assemblies are formed in a shape of stripes on the lower substrate. Anodes are formed on the upper substrate, and black matrices are formed on the anodes. The black matrices are disposed at locations respectively corresponding to every space between the cathode assemblies, so as to respectively have a shape of a partition. R, G, and B phosphor elements are formed in spaces between the black matrices, so as to respectively correspond to the cathode assemblies.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: March 30, 2004
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Un Cheol Sung, Ick Hwan Ko, Kyo Woong Lee, Young Wook Ko
  • Patent number: 6703778
    Abstract: In a display device (70, 70A, 80-80G, 90-90F) having a display window (73, 81, 93), a magnetic loss layer or layer (75, 75A, 88-88C, 97-97C) is formed on at least a part of a principal surface of the display window. The magnetic loss layer may be a granular magnetic thin layer which is, for example, made of a magnetic substance of a magnetic composition comprising M, X and Y, where M is a metallic magnetic material consisting of Fe, Co, and/or Ni, X being element or elements other than M and Y, and Y being F, N, and/or O. The magnetic loss layer may be formed in any one selected from mat, lattice, stripe, and speck fashions. The magnetic loss layer may be formed in a mesh fashion.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: March 9, 2004
    Assignee: NEC Tokin Corporation
    Inventors: Shinya Watanabe, Koji Kamei, Hiroshi Ono, Shigeyoshi Yoshida, Michio Nemoto
  • Patent number: 6690107
    Abstract: A transparent inorganic intermediate layer extends between a color filter layer and a phosphor layer in a color display device. The intermediate layer stops electrons before they can penetrate the color filter layer. Aging phenomena which adversely affect the effectiveness of the color filter layer are thus precluded. It is alternatively possible to use hitherto useless pigments, in particular pigments which are unstable when they are exposed to an electron bombardment in the color filter layer (or layers). By virtue thereof, the effectiveness of the color filter layer has been increased.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: February 10, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Arie R. Van Doorn, Remko Horne, Godefridus P. Van Melis
  • Patent number: 6630778
    Abstract: A color cathode ray tube includes a transparent panel, a funnel joined airtightly to a circumference portion of a sidewall of the panel, a light absorption layer (black layer) and an optical filter layer both disposed on an interior surface of the transparent panel, and a phosphor layer formed thereon. A length from an edge of the panel joined to the funnel to a circumference edge of the light absorption layer formed on an interior surface of the sidewall of the panel is longer than or equal with that from the edge of the panel to a circumference edge of the optical filter layer formed similarly on an interior surface of the sidewall of the panel. The color cathode ray tube can be manufactured by making a length from an edge of the panel to a scraping edge of the light absorption layer in the trimming step of the light absorption layer longer than or equal with that from the edge of the panel to a scraping edge of the filter layer in the trimming step of the filter layer.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: October 7, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Washiyama, Keisuke Iida, Masaaki Inamura
  • Patent number: 6589649
    Abstract: A biaxially oriented polyester film, an adhesive film, or a colored hard coat film for application to CRT or liquid crystal display devices to improve contrast and color purity, characterized in that the film contains a coloring matter; (1) a wavelength (X) of the maximum absorption peak of light in wavelengths of 540 to 630 nm is in the range of 560 to 610 nm; (2) a half band width of the maximum absorption peak of the light is not more than 80 nm; a value (Tx/T540), obtained by dividing a light transmittance (Tx) at the wavelength (X) by a light transmittance (T540) at a wavelength of 540 nm, is less than 0.80; a value (T620/T540), obtained by dividing a light transmittance (T620) at the wavelength of 620 nm by a light transmittance (T540) at a wavelength of 540 nm, is in the range of 0.5 to 1.5; and a value (T450/T540), obtained by dividing a light transmittance (T450) at the wavelength of 450 nm by a light transmittance (T540) at a wavelength of 540 nm, is in the range of 0.5 to 1.5.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: July 8, 2003
    Assignee: Teijin Limited
    Inventors: Taro Oya, Masayuki Fukuda, Makoto Handa
  • Patent number: 6590330
    Abstract: A display device comprises a color filter pattern between a phosphor pattern and a display window. For blue, the thickness (t2) of this color filter pattern is more than 2.5 micrometer, preferably 5-7 micrometer, and/or for red said thickness is 0.25-1.5 micrometer. The red and/or blue color filter patterns are provided by means of a non-linear photoresist. This enables an improved contrast (LCP) to be achieved.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: July 8, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Arie R. Van Doorn, Godefridus P. Van Melis
  • Patent number: 6590334
    Abstract: The present invention is directed to anode screens of field emission displays wherein the phosphors on said anode are surrounded by a black or dark matrix which reduces the threshold and operating voltages of the display.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: July 8, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Robert T. Rasmussen, Surjit S. Chadha
  • Patent number: 6559590
    Abstract: A paint for forming a heat absorbing film which exhibits a good binding property for binding with a conductive reflecting film, contains a black pigment, and a compound represented by Si(OR1)nR2m, where n+m=4, n=1 to 4, m=0 to 3, each of R1 and R2 is one of an alkyl group, an alkenyl group and an aryl group, or a hydrolyzate of the compound. Also, the present invention relates to a heat absorbing film formed out of this heat absorbing film paint and a color CRT provided with this heat absorbing film.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: May 6, 2003
    Assignees: Sony Corporation, Sumitomo Osaka Cement Co., Ltd.
    Inventors: Masatoshi Mori, Akihiko Yoshida, Kimiyo Ibaraki, Hitoshi Kimata, Yasunori Metsugi, Shunichi Abe, Atsumi Wakabayashi
  • Patent number: 6555953
    Abstract: A color cathode ray tube of the present invention includes an evacuated envelop that is structured from a panel having a phosphor screen on its inner surface, a neck portion containing therein an electron gun assembly, and a cone-shaped section called the funnel for integrally coupling the panel and the neck together, wherein when the main scanning direction of a display screen formed of the panel is defined as an X direction whereas a direction at right angles to the main scan direction is as a Y-direction, an equivalent radius of curvature Rxo of an outer surface of the panel in the X direction is at least 2.6 times greater than an equivalent curvature radius Rxi of the inner surface while forming on the inner panel surface an inside light absorption layer that is comprised of pigments as its principal component.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: April 29, 2003
    Assignees: Hitachi Ltd., Hitachi Device Engineering Co.
    Inventors: Masahiro Nishizawa, Hiroshi Yoshioka, Yoshiyuki Odaka, Toshio Tojo
  • Patent number: 6534907
    Abstract: A cathode ray tube comprising a panel portion that has a phosphor screen formed over the inner surface of the faceplate 1A. The faceplate 1A is formed such that the radius of curvature Ri of its inner surface 1A1 is almost equal to or larger than the radius of curvature Ro of its outer surface 1A2 and that the black matrix hole transmittivity is defined at a specified level. The cathode ray tube is provided with a simple means which allows the brightness in the peripheral area of the faceplate 1A to match the brightness in the central area and which, even when the deflection angle is large, can reduce the deflection voltage supplied to the deflection yoke and thereby reduce the leakage magnetic field from the deflection yoke.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: March 18, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Haruhiko Yoshida, Hiroshi Yoshioka
  • Publication number: 20030034726
    Abstract: A heat absorbing film (14) made of an oxide is formed on a conductive reflecting film (13) by applying and baking a sol containing a material, which is to form the oxide, in a colloidal state. Conditions under which a vacuum evaporation system for forming the conductive reflecting film (13), and an applying/baking system for forming the heat absorbing film (14) are operated need not be changed, and the heat absorbing film (14) having small variations in thickness and quality can be formed on the conductive reflecting film (13). Reflection and radiation of heat from the conductive reflecting film (13) to a color selection electrode are suppressed effectively, so that a color cathode-ray tube in which a decrease in color purity is small can be manufactured.
    Type: Application
    Filed: September 26, 2002
    Publication date: February 20, 2003
    Inventor: Kimiyo Ibaraki
  • Patent number: 6515639
    Abstract: A cathode ray tube (CRT) display includes a display panel having a matrix of addressable carbon nanotubes, in which each individual nanotube can be selected to help draw a corresponding electron beam from a red, green, or blue electron gun to the desired portion of the display panel, thereby creating the desired image on through the display panel.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: February 4, 2003
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventor: Luis Martinez
  • Patent number: 6512327
    Abstract: An improved resin layer used in the manufacture of cathode ray tube assemblies incorporates inorganic particles in the resin. The resin layer with particles is coated on a CRT screen prior to coating with aluminum film. The resin layer is volatilizable, so that following applying the aluminum film, the screen is baked to drive off the resin. The inorganic particles in the resin layer create an uneven boundary with the screen, so that during baking, volatilized resin in the form of gases can escape from between the aluminum and screen without forming bubbles or causing swelling.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: January 28, 2003
    Assignee: Orion Electric Co., Ltd.
    Inventors: Sang Youl Yoon, Dong Ky Shin, Hyo Sup Lee
  • Patent number: 6479928
    Abstract: A CRT has an improved contrast with a provision of a filter layer where nano-sized metal particles are dispersed in a dielectric matrix to selectively absorb light in predetermined wavelengths, specifically wavelengths between peak wavelengths of primary colors emitted by phosphors coated on the inner surface of the face plate. The improved contrast is a result of the metal particles in a dielectric matrix resonating with particular wavelengths and thus absorbing them.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: November 12, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jong-hyuk Lee, Jung-hwan Park, Yoon-hyung Cho, Hae-seung Lee, Dong-sik Zang
  • Publication number: 20020163292
    Abstract: A viewing screen (100) for a display device (115) includes a glass substrate (110) having a thermal coefficient of expansion within a range of 3.5×10−6−4.5×10−6° C.−1. Viewing screen (100) further includes a black matrix (111), which is affixed to glass substrate (110), and which includes a black surround, a ductile metal, and lead titanate.
    Type: Application
    Filed: April 16, 2002
    Publication date: November 7, 2002
    Inventors: Shawn M. O'Rourke, Nick R. Munizza, Matthew Stainer
  • Patent number: 6465945
    Abstract: The outer surface of a panel effective section of a vacuum envelope is substantially flattened. A phosphor screen is formed on the inner surface of the effective section and includes stripe-shaped phosphor layers and light absorption layers arranged in parallel. The panel effective section is formed such that a corner portion is 8 mm to 15 mm thicker than the central portion and the transmittance of the central portion is set at 40% to 60%. The phosphor screen is formed such that the ratio of the width of a light absorption layer to the pitch of phosphor layers in the central portion of the panel effective section is larger than or equal to that in the peripheral portion thereof. A shadow mask is opposed to the phosphor screen and has a mask body in which a number of electron beam passage apertures are formed. The pitch of apertures formed in the peripheral portion of the mask body is 1.3 to 1.4 times as large as that of apertures formed in the central portion thereof.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: October 15, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shigeru Tsuchida, Norio Shimizu, Masatsugu Inoue
  • Publication number: 20020140339
    Abstract: A filter layer for a display and a method of preparing the filter layer, and a display including the filter layer are provided. The filter layer for a display includes oxide particles and nano-sized metal particulates adhered to the surface of the oxide particles. A surface plasma resonance (SPR) phenomenon is triggered at the interface of the oxide/metal to selectively absorb light of at least one predetermined wavelength.
    Type: Application
    Filed: January 24, 2002
    Publication date: October 3, 2002
    Inventors: Jong-Hyuk Lee, Yoon-Hyung Cho, Hae-Seung Lee, Dong-sik Zang, Jung-Hwan Park
  • Patent number: 6432593
    Abstract: A multi-level matrix structure for frictionally retaining a support structure within a flat panel display device. In one embodiment, the present invention is comprised of a multi-level matrix structure. The multi-level matrix structure of the present embodiment is comprised of a first multi-layered structure disposed on an inner surface of a faceplate of a flat panel display device. The multi-level matrix structure of the present embodiment is further comprised of a plurality of substantially parallel spaced apart ridges. In this embodiment, the plurality of substantially parallel spaced apart ridges overlie the first multi-layered structure. Additionally, in this embodiment, the plurality of substantially parallel spaced apart ridges include contact portions for frictionally retaining a support structure in a first direction at a desired location within the flat panel display device.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: August 13, 2002
    Assignee: Candescent Technologies Corporation
    Inventors: John D. Porter, Bob L. Mackey, Robert G. Neimeyer, Christopher J. Spindt, David C. Chang, Kris E. Sahlstrom
  • Patent number: 6424086
    Abstract: A color cathode-ray tube providing a nonglare effect which can be regenerated without degradation of its nonglare function and which can be inexpensively formed. A light scattering film composed of metal containing compound micro-particles having a high index of refraction and a particle size of 0.1 &mgr;m to 2 &mgr;m is formed in contact with the internal surface of a faceplate of the color cathode-ray tube, and a black matrix having a multiplicity of holes is formed on the light scattering film. A red phosphor layer, a green phosphor layer and a blue phosphor-layer are formed in the holes of the black matrix on the light scattering film in such a manner that the phosphor layers of red, green and blue are disposed cyclically in that order. External light incident on the faceplate is partly reflected by the external surface of the faceplate, and the remainder of the external light passes through the faceplate and is made incident on the light scattering film.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 23, 2002
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Yoshiyuki Odaka, Masahiro Nishizawa, Toshimasa Ishigaki