Particular Structure Patents (Class 349/56)
  • Patent number: 8249408
    Abstract: Embodiments of this invention include composite articles having specific optical properties. In one embodiment of this invention, a composite comprises high and low refractive index light transmitting material and surface relief features. In further embodiments, the composite comprises volumetric dispersed phase domains that may be asymmetric in shape. In one embodiment of this invention, the composite is an optical film providing light collimating features along two orthogonal planes perpendicular to the surface of the film. In another embodiment, the composite has improved optical, thermal, mechanical, or environmental properties. In further embodiments of this invention, the composite is manufactured by optically coupling or extruding two or more light transmitting materials, and forming inverted light collimating surface relief features or light collimating surface relief features.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 21, 2012
    Assignee: Fusion Optix, Inc.
    Inventor: Zane Coleman
  • Patent number: 8243231
    Abstract: A backlight unit may be provided that includes a substrate, light sources, a light guide plate, at least one reflecting member, and an optical sheet. The light sources may be on the substrate. The light guide plate may include a light incident part having a light incident surface to which streaks of light respectively emitted from the light sources are laterally incident, and a light emitting part emitting the incident streaks of light upward. The reflecting member may be disposed on a lower surface of the light guide plate, and may reflect the incident light. The optical sheet may be disposed above the light guide plate. The reflecting member may include a first region having a first reflectance and a second region having a second reflectance.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: August 14, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hoon Hur, Bup Sung Jung, Won Do Kee
  • Patent number: 8243240
    Abstract: An organic solvent includes a photo decomposition type polyimide acid which forms an alignment film of a liquid crystal display device by radiation of a polarized light. A viscosity of the photo decomposition type polyimide acid is not more than 35 mPa·s.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: August 14, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 8242506
    Abstract: An array substrate includes a base substrate, a gate line, a gate insulation layer, a data line, a thin-film transistor (“TFT”) and a pixel electrode. The gate line includes a gate covering line formed in a first direction on the base substrate and a gate main line protruded from the gate covering line. The gate insulation layer is formed on the base substrate to cover the gate line. The data line is formed on the gate insulation layer in a second direction crossing the first direction. The TFT is electrically connected to the gate line and the data line. The pixel electrode is electrically connected to the TFT. Therefore, a gate line is thicker than a gate covering line and a gate main line having a low resistance is further formed, so that a gate signal may be quickly transferred along the gate line without a signal delay.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Soo Kim, Jae-Hyoung Youn
  • Patent number: 8243224
    Abstract: A flat panel display device includes a front cabinet, a rear cabinet, and a flat panel display component. The front cabinet includes a front panel, an edge portion, a plurality of contact ribs, a plurality of first bosses, and a plurality of reinforcing ribs. The contact ribs are disposed on the rear face of the front panel along side parts of the edge portion, respectively. The contact ribs have a main rib that extends parallel to a respective one of the side parts of the edge portion, and a sub rib that extends between the main rib and the respective one of the side parts of the edge portion in a direction perpendicular to the main rib. The reinforcing ribs are disposed on the rear face of the front panel. The reinforcing ribs extend between the first bosses and the main ribs of the contact ribs, respectively.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 14, 2012
    Assignee: Funai Electric Co., Ltd.
    Inventors: Shinichi Kameoka, Nobuhiro Matsutani
  • Patent number: 8243229
    Abstract: A low profile display enclosure system for enclosing a display device for viewing that protects the display device from environmental effects and is configured to dissipate heat generated within the display enclosure. The substantially sealed display enclosure comprises a rigid bezel, a substantially transparent front cover coupled to the bezel, and a rear cover assembly that includes a heat sink portion. The thickness of the bezel is minimized to provide the enclosure with a low profile about the periphery of the display device enclosed therein. Thermal control devices may be mounted within the enclosure to modulate a temperature within the enclosure.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: August 14, 2012
    Assignee: Ciil Technologies, LLC
    Inventors: Jerry Moscovitch, Luther V. Diaz Yap, Raymond Wilk, Michael Campagna, Brian Eble
  • Patent number: 8237370
    Abstract: A lighting device for a display device includes a plurality of light sources, a power source arranged to provide drive power for the light sources, a common electrode arranged to supply the drive power to the plurality of light sources, a plurality of holder electrodes arranged to hold the respective light sources and supply the drive power from the common electrode individually to the respective light sources, and a dielectric portion provided between the common electrode and each of the holder electrodes.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: August 7, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Patent number: 8237884
    Abstract: The present invention relates to an organic light-emitting diode device with efficiency roll-up property, comprising: a first conductive layer, a hole injection layer, a host light-emitting layer, a guest light-emitting layer, an electron transportation layer, a second conductive layer, and an electron injection layer, wherein when the guest light-emitting layer is doped in the host light-emitting layer after being appropriately selected and the value of ??EHOMO|?|?ELUMO? approaches to zero, such that the color light emitted by the host light-emitting layer performs the property of current efficiency roll-up.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 7, 2012
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Yi-Shan Wang
  • Patent number: 8233115
    Abstract: A flat panel display assembly and a method for constructing a flat panel display assembly are provided. The flat panel display assembly includes a substrate, a plurality of light emitting components mounted to the substrate, at least one diffusion component having concave and convex opposing surfaces. Each of the diffusion components is coupled to the substrate such that the concave surface thereof is between at least some of the plurality of light emitting components and the convex surface thereof. The at least one diffusion component is configured to diffuse light emitted from the at least some of the plurality of light emitting components as the light propagates therethough. A diffusion layer is coupled to the substrate such that the convex surface of each of the at least one diffusion component is between the concave surface thereof and the diffusion layer and configured to further diffuse the light that propagates through the at least one diffusion component.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: July 31, 2012
    Assignee: Honeywell International Inc.
    Inventors: Daniel Hadlich, Eric Irving, Mike Thorson
  • Patent number: 8231806
    Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising in each case one or more compounds of the formula I in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: July 31, 2012
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Markus Czanta, Michael Wittek, Lars Lietzau, Marcus Reuter, Brigitte Schuler
  • Patent number: 8226851
    Abstract: The present invention comprises a liquid-crystalline polymer composition comprising a nanostructured hollow-carbon material and a liquid-crystalline polymer. The nanostructured hollow-carbon material may comprises particles, each particle of which is selected from the group consisting of a particle which is composed of a carbon part and a hollow part and has a structure that the hollow part is entirely enclosed by the carbon part; and a particle which is composed of a carbon part and a hollow part and has a structure that the hollow part is partly enclosed by the carbon part.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: July 24, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Harada, Hirokazu Matsui
  • Patent number: 8228459
    Abstract: A backlight unit and liquid crystal display device comprising the backlight unit is disclosed. A backlight unit comprises a light source, an optical sheet where light from the light source is incident, a frame surrounding an edge portion of the optical sheet; and at least one sheet holder disposed at a bottom part of the frame facing the optical sheet.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 24, 2012
    Assignee: LG Electronics Inc.
    Inventor: Bongtaek Hong
  • Patent number: 8216489
    Abstract: The invention provides a liquid crystal compound represented by the following formula having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33 (K33: bend elastic constant), and further having a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds, and provides a liquid crystal composition including the compound, wherein R1 and R2 are hydrogen, alkyl or the like, ring A1 is trans-1,4-cyclohexylene, 1,4-phenylene or the like, L1 to L4 are hydrogen or fluorine, and at least three of them are fluorine; when the ring A1 is trans-1,4-cyclohexylene or the like, Z1 is a single bond, —(CH2)2— or the like, when ring A1 is 1,4-phenylene, Z1 is —(CH2)2— or the like.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 10, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventor: Masahide Kobayashi
  • Patent number: 8211332
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and so forth.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: July 3, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Norikatsu Hattori, Subaru Kawasaki
  • Patent number: 8212955
    Abstract: An exemplary backlight module includes at least one light source, a light guiding plate having a light incident portion adjacent to the at least one light source, a bezel having a plurality of protrusion; and a reflector disposed between the light guiding plate and the protrusions of the bezel. The protrusions abut edges of the reflector, and provide supporting force to attach the reflector to the bezel. A related liquid crystal display is also provided.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: July 3, 2012
    Assignee: Chimei Innolux Corporation
    Inventor: Chih-Shun Tang
  • Patent number: 8212959
    Abstract: A low profile display enclosure system for enclosing a display device for viewing that protects the display device from environmental effects and is configured to dissipate heat generated within the display enclosure. The substantially sealed display enclosure comprises a rigid bezel, a substantially transparent front cover coupled to the bezel, and a rear cover assembly that includes a heat sink portion. The thickness of the bezel is minimized to provide the enclosure with a low profile about the periphery of the display device enclosed therein. Thermal control devices may be mounted within the enclosure to modulate a temperature within the enclosure.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 3, 2012
    Assignee: Ciil Technologies, LLC
    Inventors: Jerry Moscovitch, Luther V. Diaz Yap, Raymond Wilk
  • Patent number: 8206610
    Abstract: A liquid crystal composition is provided that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The crystal liquid display device using the composition is suitable for an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, and can be used for a liquid crystal projector, a liquid crystal television and so forth.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: June 26, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Norikatsu Hattori, Masayuki Saito
  • Patent number: 8208090
    Abstract: A liquid crystal display device and a method of assembling the same are provided. The liquid crystal display device includes a light guide film guiding light, a light source disposed on at least one side of the light guide film, a bottom receiving container including a bottom plate to receive the light source and the light guide film, bottom receiving container sidewalls formed along the boundary of the bottom plate to define a receiving space together with the bottom plate, and an intermediate receiving container including an intermediate receiving container frame formed along the bottom receiving container sidewalls and positioned within the receiving space, and intermediate receiving container fitting portions extending from the intermediate receiving container frame toward the outside of the receiving space and fittingly coupled to the bottom receiving container.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 26, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Duk Lee
  • Patent number: 8202447
    Abstract: The present invention provides a method for producing a liquid crystal composition which mixes two or more liquid crystal compounds, namely, a method for producing a liquid crystal composition, including conducting agitation or ultrasonic irradiation of two or more liquid crystal compounds without applying external heat, wherein at least one of the liquid crystal compounds has a melting point higher than 40° C., and a temperature at a start of the agitation or ultrasonic irradiation is not more than 40° C. The production method of the present invention enables a highly reliable, high-quality liquid crystal composition to be produced without the necessity for large-scale equipment such as a pressure reduction apparatus or heating apparatus. Accordingly, this method is extremely practical for the production of liquid crystal compositions that require a high level of reliability.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: June 19, 2012
    Assignee: DIC Corporation
    Inventors: Kazuki Kurisawa, Kunihiko Kotani
  • Patent number: 8203664
    Abstract: An electro-optical device includes an electro-optical panel, a backlight unit and a mounting case. The mounting case includes a sidewall and a support portion provided inside the sidewall. The support portion has a notch portion that faces to the side surface of the backlight unit.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: June 19, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Seiichi Matsushima
  • Patent number: 8203668
    Abstract: An optical member 15 is constituted by sticking a lens sheet 28 capable of transmitting light irradiated toward a liquid crystal panel 11 and a diffuser sheet 27 together. The lens sheet 28 is provided with a lens portion 30 having a large number of unit lenses 29 aligned on the front surface, while on the rear surface, provided with a reflecting layer 32 having an opening 31 corresponding to the lens portion 30. The optical member 15 is received on the backside by receiving members 21 and 24 provided respectively in a holder 17 and a lamp holder 16, while being held from the front by a frame 18. A protrusion 33 is provided in the receiving member 24 in the holder 17, which supports the optical member 15 in a posture so that the edge 15a of the optical member 15 and the arrangement of the unit lenses 29 are inclined relatively to the arrangement of the pixel electrodes PE in the liquid crystal panel 11, by abutting an outer circumferential end surface 15b in the optical member 15.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 19, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kentaro Kamada
  • Patent number: 8203834
    Abstract: A flat panel display apparatus includes a flat display panel including first and second substrates facing each other with a display unit therebetween, the first substrate extending beyond the second substrate, a portion of the first substrate extending beyond the second substrate defining a protruding portion, an outermost edge of the protruding portion defining a protruding edge of the first substrate, and corners of the protruding portion being chamfered, and a bezel surrounding the flat display panel.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: June 19, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Oh-June Kwon, Seung-Yong Song, Kwan-Hee Lee, Young-Seo Choi, Sun-Young Jung, Ji-Hun Ryu, Young-Cheol Joo, Jung-Jun Im, Dong-Su Yee, Chan-Hee Wang, Chan-Kyoung Moon, Jang-Hwan Shin, Dae-Ho Lim, Rog Hur, Kuen-Dong Ha
  • Patent number: 8199137
    Abstract: An optical recording apparatus and a method of optical recording are disclosed in which: a DC voltage of a first polarity is applied, as a reset voltage for initializing a display layer, to one of a plurality of divided electrodes which is selected in a predetermined sequence along a specified direction, and reset light is irradiated onto a photoconductor layer in a region corresponding to the selected divided electrode; and a DC voltage of a second polarity opposite to the first polarity is applied, as an image writing voltage for writing an image in the display layer, to the selected divided electrode, and image light corresponding to input image information is irradiated onto the photoconductor layer in the region corresponding to the selected divided electrode. Also disclosed is an image display apparatus including the optical recording apparatus.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 12, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsutomu Ishii, Minoru Koshimizu, Naoki Hiji, Yasunori Saito, Haruo Harada, Masahiro Sato
  • Patent number: 8197708
    Abstract: Disclosed are a new dichroic dye having liquid crystal properties and dichroic properties and capable of being used for forming a polarization film with excellent heat resistance, durability, and polarizing properties, a composition including the same for a polarization film, a method for forming a polarization plate with excellent durability using the composition, and a polarization plate prepared thereby. The new dichroic dye has a structure of R1-L1-(M,L,D) (where, D is a dichroic structure, M is a structure with liquid crystal properties, R1 is a reactive end functional group, and L and L1 are linking structures). The composition for a polarization film includes the dichroic dye. In the method for forming the polarization plate, the composition for a polarization film is applied to a substrate and cured to prepare the polarization plate. The polarization plate has excellent dichroic ratio, heat resistance, durability, and polarizing properties.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: June 12, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Il Cho, Jeong-Su Yu, Eun-Kyung Kim, Sin-Young Kim
  • Patent number: 8199263
    Abstract: A method of manufacturing a multi-touch LCD panel. A conductive colloidal mixture formed by mixing a plurality of conductive particles and a colloid is coated on the electrode layer of the counter substrate and is solidified to make the conductive particles electrically connect to the corresponding sensing electrodes of the array substrate. Consequently, when an external force is applied to one touching position on the counter substrate, the conductive particles electrically connect the sensing electrodes to the electrode layer and the touching signal of the position can be obtained. Due to the integration of the conductive particles into the liquid crystal cell gap, the multi-touch LCD panel has the advantages of slimness and lightness. Moreover, the manufacturing process of the conductive particles is introduced after the conventional counter substrate manufacturing method, and the objective of simple process, low cost and high yields can be achieved.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: June 12, 2012
    Assignee: Century Display(ShenZhen)Co.,Ltd.
    Inventor: De-Jiun Li
  • Patent number: 8200060
    Abstract: A brightness enhancement sheet including a light transmissive substrate, a plurality of strip prisms, and a plurality of protruding structures is provided. The light transmissive substrate has a first surface and a second surface opposite to the first surface. The strip prisms are disposed on the first surface. Each of the strip prisms has two prism surfaces, and a junction of the two prism surfaces forms a crest line, and a valley line is formed between each of the two adjacent strip prisms. Each of the protruding structures has two wing portions. The two wing portions are respectively disposed on two prism surfaces of the corresponding strip prism. A junction of the two wing portions forms a protruding end. The protruding end protrudes from the crest line of the corresponding strip prism. Each of the wing portions extends from the protruding end to the valley line.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: June 12, 2012
    Assignee: Coretronic Corporation
    Inventors: Tzeng-Ke Shiau, Ching-Shiang Li, Chao-Hung Weng, Wei-Chung Chao
  • Patent number: 8199278
    Abstract: Surface light source device includes: point light sources (13); light guide plate (1) having (i) two end parts in length direction, one of which serves as incident surface (2), and (ii) two end parts in thickness direction which serve as exit surface (7) and back surface (8), light guide plate (1) directing light, emitted from point light sources (13), incident on incident surface (2), so as to cause light to exit from substantially entire area of exit surface (7); and reflector (14) which reflects, toward incident surface (2), part of light which is emitted from point light sources (13) and is then reflected from incident surface (2). Incident surface (2) has elliptic arc (10) which is concave part having surface shape along elliptic arc identical to elliptic arc which is part of ellipse (31) having two focal points corresponding to point light sources (13) and reflector (14).
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: June 12, 2012
    Assignees: Sharp Kabushiki Kaisha, Tohoku University
    Inventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Takahiro Ishinabe, Baku Katagiri, Yoshihiro Hashimoto, Shoichi Ishihara, Shuichi Kozaki, Yutaka Ishii
  • Patent number: 8199280
    Abstract: A backlight assembly includes; a plurality of light guide blocks disposed substantially in parallel with each other along a first direction, each of the plurality of light guide blocks including; a light guide plate (“LGP”) having a wedge-shape decreasing in thickness from a first side thereof to a second side thereof, and a light source unit disposed facing a side surface of the LGP, and a light source driving unit which individually controls the light source units of the plurality of light guide blocks to emit light via a local dimming method.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Heu-Gon Kim, In-Sun Hwang, Taek-Sun Shin, Byung-Seo Yoon, Yong-Woo Lee, Se-Ki Park
  • Patent number: 8199290
    Abstract: A display device includes a display panel, a backlight assembly providing a light to the display panel, a receiving container receiving the backlight assembly and a heat sink member disposed between the backlight assembly and the receiving container. The display panel includes a first substrate including a pixel electrode formed on a pixel region and electrically connected to a switching device, a first alignment layer formed on the pixel electrode, a second substrate including a common electrode layer facing the first substrate, a second alignment layer formed on the common electrode layer, and a liquid crystal layer including a liquid crystal composition having a nematic-to-isotropic transition temperature higher than about 80° C. Thus, black bruising of liquid crystal may be prevented and/or reduced, thereby enhancing a display quality.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Jeong Huh, Nam-Seok Lee, Won-Gap Yoon, So-Youn Park, Si-Heun Kim
  • Publication number: 20120140138
    Abstract: Methods are provided for sealing edges of resized electronic displays to minimize the size of the seal area as viewed from the front of the display. A target portion of a display is separated from an excess portion, creating an exposing edge. The exposed edge is sealed using a ribbon-like material with adhesive attached across the ends of the plates of the target portion to maintain and seal the gap between the two substrates. It may be desirable to allow two similarly prepared displays to have the resealed edge abutted against each other a minimal mullion between them. The size of the mullion is further minimized by providing pixels to the edge of the substrate being sealed, e.g., such that the active area of the display extends all the way to the edge(s) being abutted together.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Inventor: Lawrence E. Tannas, JR.
  • Patent number: 8194206
    Abstract: A planar light-emitting device allowing for high luminance uniformity has a plurality of light-emitting units (4), each including a lightguide plate (3) having a light-exiting surface, an opposite surface opposite to the light-exiting surface, a peripheral side surface extending between the respective peripheral edges of the light-exiting surface and the opposite surface, and a light-entrance surface (3a) defined by a part of the peripheral side surface. Each light-emitting unit further includes a light source (2) adjacently disposed to face the light-entrance surface to emit light into the lightguide plate through the light-entrance surface. The light-emitting units are arranged in a plurality of mutually adjacent rows with the light-exiting surfaces (3a) of their respective lightguide plates being substantially flush with each other. Adjacent rows of the light-emitting units are displaced relative to each other in the direction of the rows.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 5, 2012
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Takashi Shimura, Taku Kumasaka
  • Patent number: 8186889
    Abstract: Disclosed is an information processing device with lighting function that realizes reduced power consumption and cost reductions. The optical connecting member 17 flexibly connects between a light guide plate 14 of a displaying part side and a light guide plate 21 of a key operating part side, thereby guiding light emitted from a white light LED 13 of a displaying part side to key operating part side.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 29, 2012
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Masuda, Atsushi Takahashi, Yasushi Sugimoto, Tomoaki Shibata
  • Patent number: 8187494
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, and a suitable elastic constant K33, and further having a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds, and a liquid crystal composition having stability to heat, light and so forth, a low viscosity, a large optical anisotropy, a suitable and negative dielectric anisotropy, and a suitable elastic constant K33, a low threshold voltage, a high maximum temperature (phase-transition temperature on a nematic phase-isotropic phase) of a nematic phase, and a low minimum temperature of the nematic phase. The liquid crystal compound which has a specific structure having fluorine at a lateral position and also having phenylene in which hydrogen on the benzene ring is replaced by fluorine, and a liquid crystal composition containing the compound are prepared.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: May 29, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Masahide Kobayashi, Teru Shimada
  • Patent number: 8182717
    Abstract: A liquid crystal composition is provided that satisfies at least one of the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition having a negative dielectric anisotropy contains a first component having especially negatively large dielectric anisotropy, a second component having a large negative dielectric anisotropy and a low minimum temperature, a third component having a high maximum temperature or a small viscosity. The liquid crystal display device contains the liquid crystal composition.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 22, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventor: Masayuki Saito
  • Patent number: 8184229
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight arranged on a back surface of the liquid crystal display panel, the backlight including a plurality of rod-shaped light sources, a frame which supports the rod-shaped light sources, and a heat radiation plate which is arranged on an inner surface of the frame. Through holes are formed in the frame, and heat radiation fins are formed on the heat radiation plate in a state that the heat radiation fins project toward a back surface of the liquid crystal display panel through the through holes formed in the frame. Due to such a constitution, it is possible to provide a liquid crystal display device which can enhance heat radiation efficiency.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: May 22, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masafumi Nagaoka, Kazuyoshi Tanaka, Akio Tezuka, Takayuki Ota
  • Patent number: 8174639
    Abstract: An electronic device includes a cabinet, a device main body, a printed wiring board, an electric terminal, and a holder plate. The electric terminal is disposed on a first face of the printed wiring board. The electric terminal includes a terminal body and a connector. The holder plate includes a terminal hole, first and second engagement portions, and a restricting portion. The connector of the electric terminal is disposed through the terminal hole. The first and second engagement portions extend from an inner face of the holder plate. The restricting portion extends from the inner face of the holder plate. The restricting portion faces a top face of the terminal body of the electric terminal in a direction perpendicular to the printed wiring board.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 8, 2012
    Assignee: Funai Electric Co., Ltd.
    Inventors: Takashi Tsutsumi, Shinji Morita
  • Patent number: 8174642
    Abstract: In a light guide unit (40) of the present invention, a light source (22) is provided on a first end section (24d) of a light guide (24). Further, a side reflective member (26b), which can reflect light in the light guide (24), is provided on a second end section (24e) opposite to the first end section (24d) which is provided with the light source (22). The light guide (24) is continuously increased in thickness (D2, D4, and D5) (i) from the first end section (24d) provided with the light source (22) toward a center of the light guide (24) and (ii) also from the second end section (24e) provided with the side face reflective member (26b) toward the center of the light guide (24).
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: May 8, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoki Kubo, Takeshi Masuda
  • Patent number: 8169428
    Abstract: A display device includes silver-molybdenum alloy electrodes having high reflectivity despite annealing temperatures. The display may have a first display substrate, a second display substrate and a liquid crystal layer. The first display substrate includes signal-applying modules (e.g., TFTs) disposed on a first substrate each including an output terminal configured to output a data signal, a patterned insulation layer having contact holes that expose the output terminals, and silver-molybdenum alloy electrodes (made of silver and molybdenum) electrically connected to the output terminals. The silver-molybdenum alloy electrode is employed in the display device, thereby increasing reflectivity of the display device and improving display quality of an image displayed by the display device.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: May 1, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hwan Cho, Ho-Nam Yum, Dae-Ho Choo
  • Patent number: 8168080
    Abstract: An identifying medium comprises a nematic liquid crystal layer for forming a latent image with gradation, and the nematic liquid crystal layer has a thickness distribution corresponding to the gradation.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: May 1, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Shinya Nasubida
  • Patent number: 8168084
    Abstract: Polar nematic compounds, one example of which has the following structure: is a caged boron structure, where the sphere of the caged boron structure is C and each non-sphere vertex of the caged boron structure is B—H. R is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an acyl, an aryl, an alkylaryl, a halogen, a cyano group, or an isothiocyanoto group, or R is a group that forms an ether, a ketone, an ester, a thioester, a sulfide, or a sulfone. X is COOR? or COSR?. R? is H, an alkyl, a cycloalkyl, a bicycloalkyl, an alkenyl, a cycloalkenyl, a bicycloalkenyl, an alkynyl, an aryl, a halogen, or a cyano group. The compounds may be used in liquid crystal displays (LCDs), and in television sets, laptop computers, computer monitors, hand-held communication devices, gaming devices, watches, cash registers, clocks, and calculators having liquid crystal displays.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: May 1, 2012
    Assignee: Vanderbilt University
    Inventors: Bryan Ringstrand, Piotr Kaszynski
  • Patent number: 8168082
    Abstract: A liquid crystalline coating solution which comprises: an azo compound represented by the following general formula (I); and a solvent to dissolve the azo compound: wherein Q1 is a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; Q2 is a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; m is an integer from 1 to 5; and M is a counter ion.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: May 1, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Shoichi Matsuda, Kyoko Nishiguchi, Tadayuki Kameyama
  • Patent number: 8164706
    Abstract: In a liquid crystal display device 100 provided by the present invention, at least a part of a circuit board 16 can be held on an outer side surface 30B of a frame 30 by a board clip 50 mounted on the outer side surface 30B of the frame 30. The board clip 50 includes a plate-like main body portion 52 located so as to face the outer side surface 30B of the frame 30, front-side engaging portions 54 and 55, and a pair of rear-side engaging portions 56 and 57. A bezel receiving portion 60 contactable with a part of a peripheral portion of a bezel 20 is formed in the vicinity of the front-side engaging portions 54 and 55.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: April 24, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Saori Nambo, Eriko Wakabayashi, Masanori Shimo, Takafumi Hara
  • Patent number: 8158020
    Abstract: A liquid crystal element comprising a pair of transparent substrates, a liquid crystal layer which fills in between the pair of substrates and can form a chiral smectic C phase in homeotropic orientation, and an electrode which generates, at least, an electric field (parallel electric field) in directions parallel to a principal face of the substrate for the liquid crystal layer is provided, wherein the liquid crystal layer comprises, at least, a chiral compound of the following general formula (1-I) or a chiral compound of the following general formula (2-I) and a chiral compound of the following general formula (2 -II) in a base liquid crystal material which can provide a phase sequence of an isotropic liquid phase, a nematic phase, a smectic A phase and a smectic C phase from a higher temperature side, wherein R1, A2, Z1, Z2, m and 1 in formula (1-I), X, R1, R2, and * in formula (2-I), and X, R3, R4, R5, and * in formula (2-II) are defined in the specification.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: April 17, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hiroyuki Sugimoto, Toshiaki Tokita, Koh Fujimura, Yasuyuki Takiguchi, Yumi Matsuki, Haruki Amagawa, Toshiaki Nonaka
  • Patent number: 8154688
    Abstract: A planar light-emitting device has a plurality of light-emitting units each including a light source and a lightguide plate. The light-emitting units are arranged with the light-exiting surfaces of their respective lightguide plates being substantially flush with each other. Each lightguide plate has an upper surface as a light-exiting surface, a lower surface opposite to the light-exiting surface, and a peripheral side surface extending between the respective peripheral edges of the upper and lower surfaces. The lightguide plate emits light received from the light source from the light-exiting surface. At least a part of the peripheral side surface is an inclined surface inclined relative to the light-exiting surface.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: April 10, 2012
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Takashi Shimura, Taku Kumasaka
  • Patent number: 8154680
    Abstract: A display may be based on a display unit that is mounted within a chassis. The display unit may be a liquid crystal display unit. A backlight may be used to illuminate the display unit. The backlight may include a light guide plate. Light from a light source may be launched into an edge of the light guide plate. Scattered light from the light guide plate may travel vertically along a vertical axis that is perpendicular to the plane that contains the light guide plate. The scattered light may pass through the display unit and may serve as backlight for the display. The light guide plate may be mounted within a rectangular opening in the chassis. The edges of the rectangular opening and the edges of the light guide plate may be configured to reduce excessive reflections. These edges may have reflection-reducing coatings, non-planar surfaces, and other reflection-reducing configurations.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: April 10, 2012
    Assignee: Apple Inc.
    Inventors: David A. Doyle, Joshua G. Wurzel, Shawn R. Gettemy
  • Patent number: 8154864
    Abstract: The present invention is a robust LED display module for use in an electronic sign which display module includes a metallic housing, a heat conductive interface panel, an LED circuit board and LEDs, and a metallic mask arranged in intimate contact and association therewith, and which components operate synergistically in concert with each other in order to evenly distribute, reduce and dissipate heat along, about and within the structure of the present invention. Display uniformity is provided by the use of major metallic structures in order to prevent warpage and to protect the geometric integrity of the LED display module.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: April 10, 2012
    Assignee: Daktronics, Inc.
    Inventors: Nathan L. Nearman, Shannon Lee Mutschelknaus, Matthew R. Mueller, Douglas P. Tvedt, Kent S. Miller, Mark D. Dennis, John L. Hage, Ryan J. Nielsen
  • Patent number: 8154683
    Abstract: The present invention relates to a method for easily manufacturing an illumination device in which a surface mount chip-type LED is used, and a wiring board is formed into a truncated conical or another shape. The method includes, in a flexible strip-like wiring board having a partial ring or a linear shape, providing a through-hole T for filling with solder paste S at a wiring end portion L to be connected with a terminal of an LED, temporarily fixing the LED with bond B onto the wiring board held in a plate-like state, filling the through-hole T with the solder paste S from a back surface of the wiring board, rounding the wiring board mounted with the LED into a truncated conical or cylindrical shape, and reflowing the wiring board in the rounded state to solder the LED.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: April 10, 2012
    Assignee: CCS Inc.
    Inventors: Kenji Yoneda, Kenji Miura
  • Patent number: 8154692
    Abstract: A liquid crystal display device of the present invention includes a liquid crystal display panel, and a light diffusing layer which has first and second major surfaces and which is arranged such that the first major surface opposes a viewer side surface of the liquid crystal display panel. The light diffusing layer includes a first region formed of a first substance which has a first refractive index N1 and a plurality of second regions formed of a second substance which has a second refractive index N2 (<N1). The second regions are arranged in the first region at a predetermined pitch P in one direction in a plane parallel to the second major surface, each of the second regions forms interfaces with the first region, the interfaces being inclined by ?° from a normal of the second major surface. ?B which is expressed by ?B=tan?1 (a/Lb) is not more than 1.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: April 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yusuke Nishihara, Iori Aoyama, Tokio Taguchi, Akihiro Yamamoto, Masumi Kubo
  • Patent number: 8153021
    Abstract: Disclosed are: a liquid crystal composition which satisfies at least one property selected from a high upper limit temperature in a nematic phase, a low lower limit temperature in a nematic phase, a low viscosity, high optical anisotropy, high dielectric anisotropy, a high specific resistance, high stability against ultraviolet ray, high stability against heat and the like or has a proper balance between at least two properties selected from the above-mentioned properties; and an AM element having a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and the like.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: April 10, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Shigeru Kibe, Masayuki Saito
  • Patent number: 8149357
    Abstract: A liquid crystal display is presented. The liquid crystal display includes: a first substrate; a pixel electrode formed on the first substrate; a first alignment layer formed on the pixel electrode; a second substrate facing the first substrate; a common electrode formed on the second substrate; a second alignment layer formed on the common electrode; a liquid crystal layer formed between the first alignment layer and the second alignment layer; and a light absorption layer formed between the first substrate and the first alignment layer, or the second substrate and the second alignment layer, wherein the light absorption layer absorbs light having a UV wavelength between about 280 nm and about 450 nm.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nak-Cho Choi, Min Kang, Hoon Kang