Patents Examined by William L. Sikes
  • Patent number: 6404464
    Abstract: Disclosed is an improved method and apparatus for forming color images on radiation absorptive surfaces, having improved brightness and color characteristics. The apparatus can be realized in various forms, including Xeroxgraphic and ink-jet printing equipment. In the illustrative embodiments, color images composed from polarization-encoded perspective images are produced for use in stereoscopic viewing full-color 3-D objects represented therein using a pair of electrically-passive circularly-polarizing eyeglasses. Super-white and additive-primary coloring media is used to form the polarization-encoded composite images so that full depth of color (e.g. thousands of color values) is imparted to the 3-D objects graphically represented therein. The coloring media utilized embodies both broadband and spectrally-tuned CLC-based microflakes having symmetrical reflection characteristics which provide for improved brightness and color uniformity characteristics.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: June 11, 2002
    Assignee: Reveo, Inc.
    Inventors: Sadeg M. Faris, Le Li
  • Patent number: 6404467
    Abstract: A liquid crystal display apparatus includes a housing and a button array contacting the housing. The button array includes a plurality of buttons and is positioned between the housing and a transparent shield. The transparent shield is attached to the housing to secure the button array to the housing. The transparent shield is positioned between the button array and a liquid crystal display to shield the liquid crystal display.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: June 11, 2002
    Assignee: 3Com Corporation
    Inventors: David R. Zeiger, Kevin J. Schechtel, David J. Galovich, Kathleen A. Stunkel
  • Patent number: 6400425
    Abstract: The present invention discloses an array substrate of an active-matrix LCD device for testing the short and the open and a method of fabricating the same. For the purpose of the test, the array substrate of a liquid crystal display (LCD) device beneficially includes the first insulation layer and the second insulation layer having gate cutting holes penetrating the first and second insulation layers and the gate shorting bar connectors. The gate cutting holes are formed between the first gate shorting bar and the second gate pads and between the second gate shorting bar and the first gate pads. And the second insulation layer has source cutting holes penetrating the first and second insulation layers and the source shorting bar connector. The source cutting holes is formed between the first source shorting bar and the second source pads and between the second source shorting bar and the first source pads.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: June 4, 2002
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Ki-Tae Kim, Seong-Su Lee
  • Patent number: 6400423
    Abstract: A channel plate suitable for use in a plasma-addressed electro-optic display device and comprising a substrate having a set of elongate channels formed therein covered by a thin deposited dielectric layer is fabricated by filling the channels with filler material, depositing a layer of porous dielectric material over the substrate, removing the filler material from the channels through the porous layer and thereafter depositing a layer of non-porous dielectric material over the porous layer so as to close the channels. In this way a very thin dielectric layer can reliably be provided which improves operation of the channel plate as an addressing structure, with the channels filled with an ionisable gas, for example in a display device having electro-optic material overlying the dielectric layer.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: June 4, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Ian D. French
  • Patent number: 6400434
    Abstract: Among insulating layers for insulating and separating first wiring lines, second wiring lines, and pixel electrodes constituting a reflection type display device, at least one layer is made of an insulating film in which a carbon-based material or a pigment is dispersed. By this structure, a conventional step of forming a black mask can be greatly simplified.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: June 4, 2002
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Takeshi Fukunaga
  • Patent number: 6400429
    Abstract: A liquid crystal display device includes: a pair of substrates; polymer walls; and a display medium interposed between the pair of substrates, including a liquid crystal region partially provided with or completely surrounded by the polymer walls. The liquid crystal region includes a liquid crystal material having a helical pitch, the helical pitch being either unchanged or reduced upon rise in temperature.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: June 4, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Tokihiko Shinomiya, Shuichi Kozaki
  • Patent number: 6400436
    Abstract: An in-plane switching mode liquid crystal display device. The device comprises first and second substrates, a plurality of gate and data bus lines formed on the first substrate to define a plurality of pixel regions, a common bus line aligned in each pixel regions of the first substrate, a thin film transistor (TFT) formed at each pixel regions of the first substrate, a data electrode which is formed on a gate insulator of the TFT and has a portion overlying the common bus line for forming a first storage capacitor, a passivation layer formed over the data electrode and the TFT, a common electrode which is formed on the passivation layer so as to overlap the gate and data bus lines and has a portion overlying the data electrode for forming a second storage capacitor, and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: June 4, 2002
    Assignee: LG Philips LCD Co., Ltd.
    Inventor: Hiroshi Komatsu
  • Patent number: 6400438
    Abstract: A glass board used in the production of liquid crystal panels includes a matrix of individual substrates. Each of the substrates has a contact portion of an electrode formed on one of its principle surfaces. The individual substrates are spaced from each other so that the contact portions of adjacent substrates are not in contact with each other. Thus, when the individual substrates are cut, the contact portions are not weakened and contaminants are prevented from getting between the contact portions and the substrates.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: June 4, 2002
    Assignees: Sanyo Electric Co., Ltd., Sony Corporation
    Inventors: Kazuto Noritake, Masahiko Kawabe, Hideki Matsuoka, Minoru Nakano
  • Patent number: 6396558
    Abstract: A connecting part of an outer circuit in a liquid crystal display panel includes a substrate and a plurality of pads on the substrate, where the pads are to be connected to the outer circuit. A first connecting wire is connected to one of said pads, the wire being arranged in a first direction. A second connecting wire is connected to another one of said pads, the second connecting wire being arranged in a second direction. The first and second connecting wires are formed to minimize overlapped areas over the pads at crossing points between the first and second connecting wires and the pads. The first connecting wire is bent toward the second direction at a point and connected to the driving circuit.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: May 28, 2002
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Byeong-Koo Kim, Yong-Min Ha
  • Patent number: 6396554
    Abstract: In a color liquid crystal display, a data line (1) for supplying data to pixels in accordance with an image to be displayed overlaps pixel electrodes adjacent to the pixel electrodes to which the data line is connected. Specifically, data line (1g) connected to green pixels overlaps pixels in a column direction in the alternating sequence of green and blue. Alternatively, the data line (1) may not overlap its connected pixels. The data line connected to green pixels may overlap pixels located adjacent to green pixels in a column direction in the alternating sequence of blue and red. With these arrangements, the meandering amplitude of data lines can be reduced to shorten the overall wiring length of the data lines.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: May 28, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Hiroshi Matsuda
  • Patent number: 6396559
    Abstract: A liquid crystal display device of the present invention includes: a pair of substrates; a liquid crystal layer interposed between the pair of substrates; and a polymer wall formed on one of the pair of substrates. A thickness of the liquid crystal layer is defined by spacer beads to be greater than a height of the polymer wall.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: May 28, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuhiko Kishimoto, Kenji Hamada, Nobuaki Yamada
  • Patent number: 6396557
    Abstract: A tape carrier package comprising a tape carrier, a semiconductor chip, and an anisotropic conductive resin. The tape carrier includes an insulating film having a through-hole, a conductor pattern formed on the insulating film including leads projecting into the through-hole, and inner wiring electrically connected to a part of the conductor pattern. The semiconductor chip is provided in the through-hole and has connecting bumps electrically connected to end portions of the leads. The anisotropic conductive resin are provided so as to cover at least a portion of the semiconductor chip including a junction of the connecting bumps and the end portions of the leads.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 28, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Naoyuki Tajima
  • Patent number: 6392734
    Abstract: A light valve array features discrete pixel cells electronically isolated by dielectric spacers formed by etching a dielectric layer conforming to sidewalls of a patterned first metal layer. Formation of a second metal layer over the dielectric spacer structures, followed by chemical-mechanical polishing of the second metal layer to stop on the tips of the sidewall spacers, completes fabrication of the array. Interpixel regions corresponding to the dielectric spacers are substantially shielded from incident light by projecting metal edges of the electrodes supported by the curved upper surface of the spacer structures.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 21, 2002
    Assignee: National Semiconductor Corporation
    Inventor: Haydn James Gregory
  • Patent number: 6392719
    Abstract: A liquid crystal display (LCD) device that includes a plurality of gate lines formed at predetermined intervals in one direction and a plurality of data lines formed at predetermined intervals in a direction perpendicular to the plurality of gate lines. The LCD display device also includes a first shorting bar connected to (3n-2)th numbered data lines of the plurality of data lines, a second shorting bar connected to (3n-1)th numbered data lines of the plurality of data lines, and a third shorting bar connected to (3n)th numbered data lines of the plurality of data lines.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: May 21, 2002
    Assignee: LG Electronics Inc.
    Inventor: Jeom Jae Kim
  • Patent number: 6392720
    Abstract: An LCD apparatus and a method of manufacturing an LCD is such that an increase in contact resistivity of a metal layer is prevented. A method for manufacturing an LCD includes forming a metal layer including Mo, W or Ta on a substrate, depositing an insulating layer on the metal layer, patterning the insulating layer to expose some portions of the metal layer and removing some thickness of the exposed metal layer. The resulting LCD includes a metal layer having a first region and a second region, the second region of the metal layer having a removed portion which has a thickness of greater than or equal to 100 Å, an insulating layer which covers the first region of the metal layer and a conductive layer which contacts the second region of the metal layer.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: May 21, 2002
    Assignee: LG Electronics, Inc.
    Inventor: Woong Kwon Kim
  • Patent number: 6392721
    Abstract: A liquid crystal display device has good contact characteristics between an etched side end portion of a lower layer wiring line and an insulating film and the like, satisfactory step coverage, and satisfactory adhesion to a substrate so that disconnection of an upper layer wiring line and short-circuiting of the lower layer wiring line can be prevented to improve reliability. The liquid crystal display device comprises a wiring line having a laminated structure including a first layer which is made from a first metal layer formed over an insulating substrate and a second layer which is made from a second metal layer different from the first metal layer and is formed over the first metal layer, and the side end face of the first layer has a right-tapered shape with a taper angle of 60° or less, while the side end face of the second layer is approximately perpendicular to or counter-tapered with respect to the insulating substrate.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: May 21, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Ochiai, Toshiki Kaneko, Takuya Takahashi, Kazumi Fujii
  • Patent number: 6392729
    Abstract: Disclosed are a liquid crystal display device capable of obtaining preferable display images, whose manufacturing cost is low, and which does not deteriorate the environment at the time of fabrication and a method for fabricating the same.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 21, 2002
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Akiya Izumi, Masao Yoshioka, Tatsuo Hamamoto, Norimasa Akiyama
  • Patent number: 6392724
    Abstract: A liquid crystal display (LCD) module includes: a back light unit device having a) a lamp, b) a reflection sheet reflecting light from the lamp, c) a light guide positioned over the reflection sheet, the light guide having grooves at opposing sides, and d) a plurality of sheets located over the light guide, each sheet having a through hole corresponding to the grooves of the light guide; a liquid crystal panel located over the back light unit; a first frame located over the liquid crystal panel; a second frame having a) a main portion under the back light unit, b) first and second wall portion perpendicular to the main portion and disposed on sides of the main portion, and c) supporting portions extending outwardly from upsides of the first and second wall portions and parallel to the main portion, the supporting portion having first fastening means; and a fixing unit having a) pressing portions parallel to the supporting portions of the second frame, the pressing portions pressing down the grooves of the lig
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: May 21, 2002
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Sam-Young An, Yun-Ho Hwang
  • Patent number: 6392730
    Abstract: An active matrix type liquid crystal display device including first and second substrates, a liquid crystal composition layer provided between the first and second substrates, a plurality of drain lines and gate lines formed on the first substrate and crossing each other in a matrix form, a plurality of reference lines formed on the first substrate, and a plurality of pixels formed by adjoining the drain lines and the gate lines. At least one pixel electrode is formed in each pixel with the pixel electrode having first and second layers. An area of the first layer is smaller than that of the second layer, and a ratio of an overlapped area between the first layer and one of the reference lines to an area of the first layer is greater than that between the second layer and the one of reference lines to an area of the second layer.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 21, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masuyuki Ohta, Masahiro Ishi, Kikuo Ono, Nobuyuki Suzuki
  • Patent number: 6392733
    Abstract: A light valve array features discrete pixel cells electronically isolated by dielectric spacers formed by etching a dielectric layer conforming to sidewalls of a patterned sacrificial layer. The sacrificial layer is then removed selective to the dielectric spacer structures. A metal layer is formed over the dielectric spacer structures. Chemical-mechanical polishing of the metal layer to stop on the tips of the sidewall spacers completes fabrication of the array. Interpixel regions corresponding to the dielectric spacers are substantially shielded from incident light by projecting electrode edges formed over the curved upper surface of the spacer structures.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 21, 2002
    Assignee: National Semiconductor Corporation
    Inventor: Haydn James Gregory