Patents Assigned to Sharp
  • LIQUID CRYSTAL DISPLAY
    Publication number: 20090167657
    Abstract: A liquid crystal display device includes a pixel defined by at least four sub-pixels. The sub-pixels include at least one sub-pixel belonging to a first group and at least one sub-pixel belonging to a second group, the sub-pixel of the second group being different from that of the first group. The luminances of the sub-pixels are set such that if the colors represented by the pixel change from black into white while being kept achromatic, the first group of sub-pixel starts to increase in luminance first, and the second group of sub-pixel starts to increase in luminance when the luminance of the first group of sub-pixel reaches a predetermined value.
    Type: Application
    Filed: November 24, 2006
    Publication date: July 2, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Kazunari Tomizawa
  • SURFACE LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
    Publication number: 20090167989
    Abstract: A surface light source includes a light source and an optical waveguide plate. The light source serves to emit light. The optical waveguide plate has an incident end face where the light is incident and a light exit surface where the light incident on the incident end face exits. Further, the optical waveguide plate has a refractive index n. The incident end face has a plurality of concave portions. The angle between a plane formed by the plurality of concave portions and a tangent plane of the incident end face is not more than (90?2·arcsin(1/n)) degree.
    Type: Application
    Filed: December 18, 2008
    Publication date: July 2, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shin ITO, Masato Sumikawa, Yutaka Okada
  • LIQUID CRYSTAL DISPLAY
    Publication number: 20090167992
    Abstract: The invention relates to a liquid crystal display used as a display section of an electronic apparatus and provides a liquid crystal display having high chromaticity characteristics and viewing angle characteristics. A configuration is employed which includes substrates having electrodes on respective surfaces thereof opposite to each other, a liquid crystal sealed between the substrates, and a pixel region including a low effective voltage area in which an effective voltage applied to the liquid crystal is lower than a voltage applied between the electrodes, the low effective voltage area occupying part of the region in a predetermined area ratio, the pixel region having a threshold voltage that varies between the low effective voltage area and another area.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 2, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuya Ueda, Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Kenji Okamoto, Yuichi Inoue, Seiji Tanuma
  • Solder Mounting Structure, Method for Manufacturing Such Solder Mounting Structure and Use of Such Solder Mounting Structure
    Publication number: 20090166069
    Abstract: The camera module structure (10) of the present invention, is a board electrode (2) formed on a printed board (1) and a mounting electrode (4) formed on a camera module (3) mounted on the printed board (1) being joined through a solder joint section (5), and the board electrode (2) and the mounting electrode (4) are aligned by self-alignment. The solder joint section (5) is composed of a first solder (6) and a second solder (7) having different characteristics. Thus, a solder mounting structure wherein a heavy-weight component is joined on the board with solder by self-alignment is provided.
    Type: Application
    Filed: July 21, 2006
    Publication date: July 2, 2009
    Applicant: SHARP KABUSHIKI KAIHSA
    Inventor: Kazuo Kinoshita
  • MOBILE COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION METHOD
    Publication number: 20090168662
    Abstract: A mobile communication system of the present invention generates a gap section based on a channel quality indication, and determines the timing or the frequency of generating the gap section based on a given parameter between the base station device and the mobile station device.
    Type: Application
    Filed: February 9, 2007
    Publication date: July 2, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Tsuboi, Wahoh Oh
  • Liquid crystal display device
    Patent number: 7554631
    Abstract: By circular or polygonal openings formed in at least one of a metal film, a semiconductor film, an insulating film and the like, which films are below a reflecting electrode, minute irregularities are densely formed on a surface of the reflecting electrode. In this case, it is required that a linear density defined by peripheral dimensions of the openings per unit area is equal to 0.2 or more.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kunihiro Tashiro, Yasutoshi Tasaka, Hidefumi Yoshida, Yoshinori Tanaka, Seiji Doi, Tomoshige Oda, Manabu Sawasaki, Tomonori Tanose, Takashi Takagi, Isao Tsushima, Tetsuya Fujikawa, Norio Sugiura
  • Cellular phone
    Patent number: 7555323
    Abstract: A plurality of operation portions are arranged at a surface on a sub-display side of a cellular phone with a camera so that various kinds of setting, selection and control can be performed without opening the cellular phone in its folded state, and the cellular phone can achieve improved operability and convenience. Cellular phone includes a first display portion at a surface of a first body opposed to a second body in the folded state, and includes a second display portion, an image taking portion and a plurality of operation portions arranged at a rear surface of the first body remote from the first display portion.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyasu Hamamura, Yoshitaka Suzuki
  • Cleaning device, and fusing device and image forming apparatus, provided with the cleaning device
    Patent number: 7555254
    Abstract: A cleaning device includes a cleaning web, a supply roller, a take-up roller, and a control section. Positioned in contact with a circumferential surface of a fuser roller, the web removes toner particles on the circumferential surface. The supply roller has the web wound thereon. The take-up roller takes up the web withdrawn from the supply roller. The control section controls rotation of the take-up roller. The control section performs a first process of causing the take-up roller to take up a first length of the web each time a predetermined taking-up condition is satisfied. The control section also performs a second process, instead of the first process, of causing the take-up roller to take up a second length of the web each time after a first predetermined number of the first processes are performed.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinobu Tateishi, Toyoaki Nanba, Yasunori Minakuchi
  • Integrated circuit device and low noise block down converter including same
    Patent number: 7555258
    Abstract: A switch block 1 includes: N inputs; M outputs; N amplification sections each of which amplifies one of each pair of 2N input signals which are generated by dividing N input signals supplied to the N inputs in two; N bandwidth conversion sections each of which subjects, to frequency conversion, the other one of each pair of 2N input signals; and a 2N×M switch section which outputs the 2N output signals, which are supplied from the N amplification sections and the N bandwidth conversion sections, to either: one of the M outputs; or none of the M outputs. With this arrangement, it is possible to provide a signal recombination circuit which can reduce the leakage of the input signals.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoji Sakurai, Yoshiaki Nakano
  • Method of manufacturing liquid crystal display device and one drop fill apparatus used for the same
    Patent number: 7553392
    Abstract: A method of manufacturing a liquid crystal display device in which liquid crystal is sealed between substrates using a one drop fill method. Dropping of liquid crystal is controlled so that the dropping quantity of the liquid crystal is reduced in an area including the vicinity of a seal material on a side with a relatively narrow cell gap width while the dropping quantity of the liquid crystal is increased in an area including the vicinity of the seal material on a side with a relatively broad cell gap width. Alternatively, dropping of the liquid crystal is controlled so that the number of times the liquid crystal is dropped is reduced in the area including the vicinity of the seal material on one side while the number of times the liquid crystal is dropped is increased in the area including the vicinity of the seal material on another side without changing the dropping quantity of one drop.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shota Makimoto, Satoshi Murata, Hiroyuki Sugimura, Tetsuya Kida, Hidehiko Suzuki
  • Dot-gain reduction method for multi-level halftoning
    Patent number: 7554696
    Abstract: A method for minimizing color-image halftone dot-gain in the output of a multi-level halftone color-imaging output device. The method includes characterizing that device's halftone output, on a per-color basis, regarding pixel-pattern-specific dot gain which can be related to device pixel-infeed intensity levels, and from that characterizing, creating, and then applying to throughput color-image files, on a pixel-by-pixel basis, and for each output color producible by the device, a pixel-to-device infeed intensity correction value, thus to minimize device-output dot gain.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: June 30, 2009
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Ching-Wei Chang
  • Systems and methods for down scaling a bitmap
    Patent number: 7555171
    Abstract: A method for scaling a first bitmap from a first size to a second size is disclosed. A first bitmap is accessed. The first bitmap is iterated through and the following are performed until no more size reductions are needed to scale the first bitmap to the second size. A group of pixels is identified from the first bitmap. A unique pixel is identified in the group of pixels. One or more pixels including the unique pixel are copied from the group of pixels to a second bitmap, wherein one or more pixels are not copied to the second bitmap and are not the unique pixel.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: June 30, 2009
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: James E. Owen
  • Illuminance sensor determining the duty ratio of a PWM signal based on a digital output of an A/D converter and light control apparatus
    Patent number: 7554065
    Abstract: The following members are included: a light receiving element which outputs an electric signal corresponding to ambient light; an A/D converter which converts the electric signal output from the light receiving element into a digital signal; a register which stores the digital signal output from the A/D converter and determines the duty ratio of a PWM signal based on the digital signal; and a PWM controller which outputs the PWM signal based on the duty ratio output from the register.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takayuki Shimizu
  • Liquid crystal medium
    Patent number: 7553523
    Abstract: Disclosed are a liquid crystal medium having a birefringence at 20° C. that is lower than 0.08 and contains 1-30% by weight of one or more compounds of formula IA, 1-10% by weight of one or more compounds of formula IB, 0-9% by weight of one or more compounds of formula IC, and the use of the medium for electro-optical purposes, and to displays containing the medium.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: June 30, 2009
    Assignees: Merck Patent GmbH, Sharp Corporation
    Inventors: Hideo Ichinose, Shinji Nakajima, Masahiko Okamura, Takanori Takeda, Masako Nakamura
  • Liquid crystal display device
    Patent number: 7554622
    Abstract: In a liquid crystal display device in which in order to prevent image sticking in a half tone type MVA using a floating sub-pixel, a second TFT is provided between a sub-pixel directly connected to a TFT and the floating sub-pixel, its alignment is improved and a display quality is improved. A control capacitance electrode of an adjacent pixel is extended to provide an alignment control electrode in a corner portion of a pixel in which a propagation distance of liquid crystal alignment is long, and the propagation distance of the liquid crystal alignment is shortened, and at the same time, a slit part is formed of electrodes different from each other in voltage polarity to stabilize the alignment.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Hidefumi Yoshida, Yasutoshi Tasaka
  • Nitride-based compound semiconductor light emitting device, structural unit thereof, and fabricating method thereof
    Patent number: 7554124
    Abstract: A nitride-based compound semiconductor light emitting device includes a first conductive substrate, a first ohmic electrode formed on the first conductive substrate, a bonding metal layer formed on the first ohmic electrode, a second ohmic electrode formed on the bonding metal layer, and a nitride-based compound semiconductor layer formed on the second ohmic electrode. The nitride-based compound semiconductor layer includes at least a P-type layer, a light emitting layer and an N-type layer, and has a concave groove portion or a concave-shaped portion.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshio Hata
  • Mobile electronic device with fragmented device settings
    Patent number: 7555640
    Abstract: A mobile electronic device with fragmented device settings enables preservation of user-defined settings during over-air software updates. Such a device in one aspect comprises a memory adapted to store at least one device setting including a default setting determined independent of any user of the device and a user setting determinable by a user of the device; a wireless interface adapted to receive a software update; and a processor communicatively coupled to the wireless interface and the memory and adapted to update the default-setting in response to the software update.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Richard Eric Helvick
  • Backlight device and liquid crystal display
    Patent number: 7553060
    Abstract: A backlight apparatus of a sidelight type includes a light guide plate having an incident face on a lateral face and a light source unit having a plurality of substrates. The plurality of the substrates are respectively disposed on the incident face side of the light guide plate such that each of substrate faces of the substrates is parallel with a light exit face of the light guide plate, and the substrates are adjacent to one another in a thickness direction of the light guide plate. A plurality of light emitting devices that emit light along the substrate faces are mounted in columns on each of the substrate faces of the plurality of the substrates such that emitting directions of the light emitting devices are directed to the incident face.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takayoshi Tanabe
  • Fabricating method of semiconductor light-emitting device
    Patent number: 7554100
    Abstract: A fabricating method of a semiconductor light-emitting device includes the step of forming a wafer including a multi-layered semiconductor film epitaxially grown on a base substrate and containing an active layer, the step of performing pass/fail judgment of the active layer by photo-exciting the active layer in the wafer and by measuring emission intensity from the active layer at least at two temperature points, and the step of forming a light-emitting device structure with the multi-layered semiconductor film containing the active layer judged to be of good quality in the pass/fail judgment.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Mayuko Fudeta
  • Methods and systems for adaptive dither pattern processing
    Patent number: 7554555
    Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: June 30, 2009
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Scott J. Daly, Xiao-fan Feng