Patents Assigned to Sharp
  • Publication number: 20100134718
    Abstract: A backlight (illuminating device) of the present invention is a tandem type backlight including a plurality of light-emitting units (11) including at least one point light source (5) and a light guide plate (7) for causing light from the at least one point light source to be diffused and surface-emitted. In each of the light-emitting units (11), a length X of a light guide area (9) is set so that an area, on a boundary surface between a light-emitting area (10) and the light guide area (9), of a cross-section of a light beam that is emitted from the at least one point light source (5) and is diffused in the light guide plate (7) is equal to or larger than an area of the boundary surface (interface). Moreover, a length X, in a length direction D1, of the light guide area is smaller than a length Y, in the length direction D1, of the light-emitting area, the length direction being a direction pointing from the at least one point light source (5) toward the light-emitting area (10).
    Type: Application
    Filed: July 25, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuhsaku Ajichi, Takeshi Masuda
  • Publication number: 20100135028
    Abstract: A light-emitting device (10) includes: a light-emitting element (1); and a light flux controlling member (2) for controlling light emitted from the light-emitting element (1), the light flux controlling member (2) has (i) a light-incoming surface (2a) which the light emitted from the light-emitting element (1) enters and (ii) a light-outgoing surface (2b), and the following equation (1) is satisfied where r is a length, from a light axis Z of the light-emitting device (10), of a plane that is provided at a certain distance from the light flux controlling member (2) in a direction parallel to the light axis Z so as to be perpendicular to the light axis Z, ?1 is an angle between the light emitted from the light-emitting element (1) and the light axis, P(?1) is a light distribution property of the light-emitting element (1).
    Type: Application
    Filed: August 8, 2008
    Publication date: June 3, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Fumio Kokubo
  • Publication number: 20100135700
    Abstract: A developer of the present invention includes a toner and a carrier. The toner contains a charge control agent, and the carrier has on its surface a coating layer to which a charge control agent and electrically conductive particles are added. All of constituent elements of one of the charge control agent of the toner and the charge control agent of the carrier are contained in constituent elements of the other one of the charge control agents. With the configuration, the developer of the present invention is capable of stably maintaining a toner charge amount and outputting high-quality images for long periods.
    Type: Application
    Filed: March 26, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Mutoh, Tadashi Iwamatsu, Takanori Kamoto, Nobuyuki Yoshioka, Hiroyuki Hirakawa, Takashi Hara
  • Publication number: 20100134747
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material made of a photo-curing type material which seals liquid crystal sandwiched between substrates, and a shading film having a shading area which overlays a red-colored layer transmitting red light, a green-colored layer transmitting green light and a blue-colored layer transmitting blue light, wherein only the blue-colored layer is formed in an area of the shading film contacting with the sealing material and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
  • Publication number: 20100134395
    Abstract: A display apparatus that can perform even a high quality moving picture display and provides improved color purity, and an illumination device used in the display apparatus are provided. The display apparatus includes: an illumination device (3) that includes a first light source (31G) that emits light of a first color and a second light source (31RB) that emits light of a second color complementary to the first color; a gate driver (24) that sequentially selects each of scanning lines GL at a cycle of 0.5 frames; a source driver (23) that, at a first half of one frame time period, writes a data signal into each of pixels of the first color, and at a latter half thereof, writes a data signal into each of pixels of the other two colors; and a switch circuit (26) that, at the first half of one frame time period, switches on the first light source while switching off the second light source, and at the latter half of the time period, switches on the second light source while switching off the first light source.
    Type: Application
    Filed: April 16, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki Takata
  • Publication number: 20100134524
    Abstract: In one embodiment of the present invention, a display device is disclosed that can realize a wide color reproduction region and high color purity while maintaining a configuration of a display element having a high resolution and a high numerical aperture. The display device includes: an illumination device including a first light source that emits light of a first color and a second light source that emits light of a complementary color with respect to the first color; a gate driver that successively selects each of the scanning lines at a cycle of 0.
    Type: Application
    Filed: May 22, 2008
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Keiji Hayashi, Kentaro Kamada
  • Publication number: 20100134746
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material made of a photo-curing type material which seals liquid crystal sandwiched between substrates, and a shading film having a shading area which overlays a red-colored layer transmitting red light, a green-colored layer transmitting green light and a blue-colored layer transmitting blue light, wherein only the blue-colored layer is formed in an area of the shading film contacting with the sealing material and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
  • Publication number: 20100134716
    Abstract: An LED package housing member that includes a light emitting chip has a missing portion in its side walls.
    Type: Application
    Filed: February 20, 2007
    Publication date: June 3, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Tetsuya HAMADA
  • Publication number: 20100133419
    Abstract: A method for manufacturing an electronic element wafer module is provided, the method comprising: a protective resin film forming step of forming a protective resin film on only light openings of the plurality of wafer-shaped optical elements; a light shielding film forming step of filming a light shielding film on an area except for the light openings or an entire area including the light openings; and an optical aperture forming step of removing the protective resin film, or removing the protective resin film and a light shielding film material on the protective resin film, to form an optical aperture structure by the light shielding film at the light openings.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 3, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Aiji SUETAKE
  • Publication number: 20100134809
    Abstract: An image processing system includes a printing device having a printing resolution, and a processor. The processor is configured to receive input image data comprising an input tone, and to dither the input image data at a halftone resolution, wherein the halftone resolution is less than the printing resolution of the printing device. The processor is further configured to perform multi-thresholding of the image data to identify a multi-pixel output tone level, and to generate output image data comprising the multi-pixel output tone level. The output image data is printed at the printing resolution. The multi-thresholding of the image data may further include an error diffusion algorithm providing gamma correction of the input tone.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Applicant: Sharp Laboratories of America, Inc.
    Inventor: Ching-Wei CHANG
  • Publication number: 20100134738
    Abstract: A liquid crystal display device according to the present invention includes: a vertical alignment liquid crystal layer; first and second electrodes arranged on one surface of first and second substrates to face the liquid crystal layer; and first and second alignment films arranged on the first and second electrodes, respectively, in contact with the liquid crystal layer. The first alignment film has been subjected to an optical alignment treatment by obliquely irradiating a first alignment film material, having a photosensitive wavelength within the wavelength range of 250 nm to 380 nm, with light including the photosensitive wavelength. The device further includes: a metal layer arranged between the first alignment film and the first substrate; and a first resin layer arranged between the metal layer and the first alignment film.
    Type: Application
    Filed: January 28, 2010
    Publication date: June 3, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Masumi Kubo, Akihiro Yamamoto
  • Patent number: 7729372
    Abstract: A method and corresponding system for operating in a network in which stations communicate over a shared medium are presented. The shared medium has at least one varying channel characteristic that varies approximately periodically. The method includes providing repeated beacon transmissions from a coordinator station for coordinating transmissions among a plurality of the stations, wherein at least some beacon transmissions are synchronized to the varying channel characteristic; and transmitting from a first station to at least one receiving station during a time slot determined based on at least one of the beacon transmissions received by the first station from the coordinator station.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: June 1, 2010
    Assignees: Sharp Corporation, CopperGate Communications Ltd., Atheros Communications, Inc.
    Inventors: Lawrence W. Yonge, III, Srinivas Katar, James E. Petranovich, Neal Riedel, George M. Peponides, Wai Chung Chan
  • Patent number: 7726865
    Abstract: A backlight unit includes a prism sheet (an optical path changing portion and a light gathering portion) having lenses and being disposed to face an output surface of a light guide member, and a plurality of second prism inclined surfaces that are inclined at a predetermined inclination angle with respect to the output surface. Further, a lens surface that gathers light from the second prism inclined surfaces toward a normal line direction of the output surface according to the second prism inclined surfaces is provided, and a central position of the lens surface in a transmitting direction of the light guide member is matched with a central position of its corresponding second prism inclined surface.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Sato, Hisashi Watanabe
  • Patent number: 7729639
    Abstract: There is provided a charging apparatus which has high durability and suffers from no rust etc. and of which controllability of charged potential of a photoreceptor is hardly impaired even with a some amount of contaminants such as a toner so that control of charged potential of a photoreceptor can be stably carried out to fall in an appropriate range over a long period of time, and moreover which is inexpensive. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a grid electrode. A length in minor axis of a secondary aggregate of polytetrafluoroethylene contained in a polytetrafluoroethylene-containing nickel layer formed on a surface of the needle electrode is twice or less than a layer thickness of the nickel layer.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masanobu Deguchi, Syouichi Fujita
  • Patent number: 7728826
    Abstract: In a display apparatus, a text code input section outputs externally-supplied text code information to a font conversion section and a voice synthesizer section. The font conversion section converts the input text code into a corresponding font, and transmits the font to a display drive section via a video signal input section, and the display drive section causes a display section to display the font. Meanwhile, the voice synthesizer section converts the input text code into corresponding voice data, and transmits the voice data to a voice device where the voice data is outputted. With this structure, superior convenience is ensured for a display apparatus which serves only as an individual displaying apparatus and relies on an external device (server) for the major functions of the system.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kazuhiko Miyata
  • Patent number: 7727693
    Abstract: An object of the invention is to provide an electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance and capable of compatibilize the decrease of the size and the increase in the image forming speed of an electrophotographic apparatus. In a photosensitive layer of an electrophotographic photoreceptor, oxotitanium phthalocyanine having a crystal form showing a diffraction peak at a Bragg angle 2? (error: 2?±0.2°) of 27.2° in an X-ray diffraction spectrum is contained as a charge generating substance, and an enamine compound represented by the general formula for example, the structural formula (1-1) is contained as a charge transporting substance. Accordingly, the electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance is realized.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuya Ishida, Akihiro Kondoh, Takatsugu Obata
  • Patent number: 7730306
    Abstract: Processing for extending function of an information processing apparatus having functions, the use of which is restricted, is managed by canceling the restriction of the use of function in association with an information storing device which is connected to information processing apparatus A, B. The information storing device holds information on a list of product keys and the number of possible function extensions (the number of restriction cancellations and the number of licenses) as information for canceling the restriction in advance. The number of information processing apparatus, the functions of which are extended, is managed by reducing the number of possible function extensions each time when one function of the information processing apparatus A is extended. Unnecessary function is deleted from the information processing apparatus A so as to increase the number of licenses. Correspondingly, the function of the information processing apparatus B can be extended.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akinobu Fujino
  • Patent number: 7728824
    Abstract: A display device or an input device includes: a display section for simultaneously displaying (i) a first image in a first direction and (ii) a second image, which is different from the first image, in a second direction different from the first direction; and a reflecting section. The reflecting section reflects the second image, which is displayed on the display section, toward a viewing position where the first image is viewable and recognizable. This allows a user to simultaneously view (i) the first image displayed in the first direction by the display device or the input device and (ii) the second image displayed in the second direction by the display device or the input device.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hirohito Morioka
  • Patent number: 7728251
    Abstract: In a plasma processing apparatus, electromagnetic waves are radiated from slots of waveguides into a processing chamber via dielectric windows that are supported on beams, thereby generating a plasma. A substrate, which is an object of processing, is processed by the generated plasma. Dielectric plates are attached to those surfaces of the beams, which are opposed to the processing chamber. The thickness of each dielectric plate is set at ½ or more of the intra-dielectric wavelength of the electromagnetic waves. Using the plasma processing apparatus, a large-area processing can uniformly be performed.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Ide, Atsushi Sasaki, Kazufumi Azuma, Yukihiko Nakata
  • Patent number: 7729034
    Abstract: An ionic colored liquid according to the present invention moves with a voltage application, and contains as principal components at least a coloring material whose base material is a pigment, and an ambient temperature molten salt combining a cation and an anion. The coloring material has a mean volume particle diameter of equal to or smaller than 5 ?m and a coefficient of variation in a volume particle size distribution of equal to or smaller than 50. In an image display apparatus according to the present invention, a surface energy of the ionic colored liquid (21) is varied according to whether or not a voltage is applied to the ionic colored liquid (21), thereby moving the ionic colored liquid (21) or increasing/decreasing a surface area of the liquid on a display surface side, so that an image is displayed. In this manner, the ionic colored liquid can be dispersed stably in a dispersion medium and applied to an electric-field induction type electronic paper display or the like.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: June 1, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinich Nakano, Hiroko Niwano