Particular Structure Patents (Class 349/56)
  • Patent number: 8512819
    Abstract: Provided is a liquid crystal display device includes: a first substrate (6); a second substrate (7); a liquid crystal layer (LC); a first alignment film (606) placed on the first substrate; a second alignment film (705) placed on the second substrate; and at least one of: a transparent layer (610) contacting the first alignment film on the other side of the liquid crystal layer and being lower in volume resistivity than the first alignment film; and a transparent layer (710) contacting the second alignment film on the other side of the liquid crystal layer and being lower in volume resistivity than the second alignment film, wherein the transparent layer contains polysiloxane expressed by Chemical Formula 1: where R1 and R2 each represent an alkyl group or alkoxy group having 1 to 3 carbon atoms, or a hydroxyl group, and at least 30% of hydroxyl groups are contained.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masaki Matsumori, Yasushi Tomioka
  • Patent number: 8501038
    Abstract: The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33, and further having a suitable negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: August 6, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Masahide Kobayashi
  • Patent number: 8502843
    Abstract: At least one of a first control circuit (60) for controlling a liquid crystal display component (30) and a second control circuit (64) for controlling a light source unit (40) is provided in an area (R1) demarcated by a plane including a front face (32) of the liquid crystal display component (30) and a plane including a rear face (44) of the light source unit (40).
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: August 6, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yasuhiro Furusawa
  • Patent number: 8496848
    Abstract: A birefringent film which comprises a compound having a proton-accepting group and a compound having a proton-donating group; and a birefringent film which comprises a compound having a proton-accepting group and a proton-donating group. The proton-accepting group and proton-donating group are combined with each other through intermolecular hydrogen bonding.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: July 30, 2013
    Assignees: Sumitomo Chemical Company, Limited, The University of Tokyo
    Inventors: Motohiro Yamahara, Takashi Kato
  • Patent number: 8493535
    Abstract: It is an object of the present invention to provide a liquid crystal display device with a good display quality, and a manufacturing method of such a liquid crystal display device. A liquid crystal display device (10) includes a liquid crystal display panel (11) with a display surface (20) defining a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and with a scattering section which is arranged parallel to the display surface (20), which defines a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and in which a plurality of elongated regions (A-C) having different haze values are arranged in parallel with each other from a middle section of the curved surface toward both end sections in the curving direction. The haze values of the plurality of elongated regions (A-C) arranged in parallel with each other vary in a step-wise manner from the middle section of the curved surface toward the both end sections in the curving direction.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 23, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiromi Enomoto
  • Patent number: 8493532
    Abstract: A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 23, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu, Yuko Matsumoto
  • Patent number: 8493525
    Abstract: A thin film transistor array panel includes: a substrate; a gate line and a storage electrode that are disposed on the substrate; a data line that crosses the gate line and storage electrode line; a thin film transistor that is connected with the gate line and data line; and a pixel electrode that is connected to the thin film transistor. The storage electrode includes a first storage electrode that is parallel to the gate line, second storage electrodes that extend on opposing sides of the data line from the first storage electrode, a connection part that crosses the data line and connects pairs of the second storage electrodes, and a connection bridge that crosses the gate line and connects a second storage electrode to a second storage electrode of an adjacent pixel.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyuk Lee, Bon-Yong Koo, Sun-Mi Kim, Ju Hyeon Baek, Ji Young Jeong
  • Patent number: 8491814
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic 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 two characteristics thereof. The subject is to provide 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. The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific four-ring compound replaced by fluorine having a high maximum temperature as a first component, and a specific compound having a negatively large anisotropy as a second component, and provides a liquid crystal display device containing the composition.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: July 23, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Makoto Daigo, Hiroaki Fujita
  • Patent number: 8486297
    Abstract: The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 16, 2013
    Assignee: Merck Patent GmbH
    Inventors: Axel Jansen, Detlef Pauluth, Harald Hirschmann, Markus Czanta
  • Patent number: 8488078
    Abstract: A chassis set includes a first chassis and a second chassis. The first chassis includes a first connecting portion having at least one guide protrusion. The second chassis includes a second connecting portion having at least one guide hole that receives the guide protrusion of the first chassis to combine the first and second chassis. Therefore, a manufacturing cost is reduced and productivity is enhanced. Additionally, the chassis can be made easily.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: July 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-II Kim
  • Patent number: 8477254
    Abstract: A backlight module with a detachable light source unit includes a light guide plate and a light source unit housed in a module case. The light source unit can slide along a lengthwise direction of one end face of the light guide plate. The light source unit is equipped with a U-shaped cover member for holding a plurality of point light sources such as LEDs along a lengthwise direction. The backlight module further includes a coupling member to change a positional relationship between the light guide plate and the light source unit such that a distance between an emitting surface of the LED and an incident plane of the light guide plate during a process of exchanging the light source unit is larger than that between the emitting surface and the incident plane at a time of home position of the light source unit in the module case.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: July 2, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Hideki Kujiraoka, Kei Takahashi
  • Patent number: 8470198
    Abstract: The invention relates to novel calamitic mesogenic compounds which are especially suitable for use in birefringent films with negative optical dispersion, to novel liquid crystal (LC) formulations and polymer films comprising them, and to the use of the compounds, formulations and films in optical, electrooptical, electronic, semiconducting or luminescent components or devices.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: June 25, 2013
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri
  • Patent number: 8471997
    Abstract: An LCD apparatus comprising an LCD screen, backlight arrangements for providing back illumination to the LCD screen, video processing circuitry and air moving devices, characterized in that the air moving devices are arranged to move air to condition the image displaying surface of the LCD screen. An LCD image displaying apparatus according to the present invention could operate at a brightness level of above 1000 nits, and even 3000 nits, which provides an astounding visual effect in the outdoor environment.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 25, 2013
    Assignee: Shenzhen New Super-Bright LCD Display Co., Ltd.
    Inventors: Yanming Yang, Nanfang Xie, Cai Kang
  • Patent number: 8471979
    Abstract: The present invention discloses a backlight module and a LCD using the same. Said backlight module comprises a light guide plate, a reflection sheet and a backplane, wherein said reflection sheet is arranged under the light guide plate; said backplane is arranged under the reflection sheet and partially supports the reflection sheet; and said reflection sheet is bent to form one or more supporting ribs for supporting the backplane to prevent the reflection sheet from drooping. The present invention solves the problem that the reflection sheet is affected by heat and then is easy to droop, by bending the reflection sheet of the backlight module to form the one or more supporting ribs for supporting the reflection sheet, and has the advantages of low cost and no negative influence on other components and system structure of the backlight module.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 25, 2013
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Tian Zhang
  • Patent number: 8465672
    Abstract: The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I in which R1, A1, A2, X1, L1, L2, m and n have the meanings indicated in Claim 1, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: June 18, 2013
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Markus Czanta, Atsutaka Manabe
  • Patent number: 8462293
    Abstract: A tandem type backlight comprises plural 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.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: June 11, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhsaku Ajichi, Takeshi Masuda
  • Patent number: 8462286
    Abstract: A method of manufacturing, with high mass productivity, liquid crystal display devices having highly reliable thin film transistors with excellent electric characteristics is provided. In a liquid crystal display device having an inverted staggered thin film transistor, the inverted staggered thin film transistor is formed as follows: a gate insulating film is formed over a gate electrode; a microcrystalline semiconductor film which functions as a channel formation region is formed over the gate insulating film; a buffer layer is formed over the microcrystalline semiconductor film; a pair of source and drain regions are formed over the buffer layer; and a pair of source and drain electrodes are formed in contact with the source and drain regions so as to expose a part of the source and drain regions.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: June 11, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yukie Suzuki, Hideaki Kuwabara, Hajime Kimura
  • Patent number: 8454856
    Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low 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 has a nematic phase, wherein the first component contains a specific five rings compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a low viscosity. The liquid crystal display device contains the liquid crystal composition having a nematic phase and the composition thereof.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: June 4, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Shigeru Kibe, Masayuki Saito
  • Patent number: 8456586
    Abstract: An electronic device housing may have upper and lower portions that are attached with a hinge. At least one portion of the housing may have a rear planar surface and peripheral sidewalls having edges. A display module may be mounted in the housing. The display module may have glass layers such as a color filter glass layer and a thin-film transistor substrate. The color filter glass layer may serve as the outermost glass layer in the display module. The edges of the display module may be aligned with the edges of the peripheral housing sidewalls to create the appearance of a borderless display for the electronic device. The display module may be provided with an opening that allows a camera or other electronic components to receive light. Traces may be provided on the underside of the thin-film transistor substrate to serve as signal paths for the electrical components.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: June 4, 2013
    Assignee: Apple Inc.
    Inventors: Dinesh C. Mathew, Thomas W. Wilson, Jr., Victor H. Yin, Bryan W. Posner, Chris Ligtenberg, Brett W. Degner, Peteris K. Augenbergs
  • Patent number: 8446542
    Abstract: A display module includes a bottom casing, a panel device, and an upper casing. The bottom casing includes a casing body and a holding structure. The holding structure is integrally formed on the casing body and has a bottom pillar. The panel device is disposed on the bottom casing. The panel device includes at least one film component and a display panel. The film component has at least one positioning lug. The positioning lug is used for disposing around the bottom pillar so as to position the film component onto the holding structure. The display panel is disposed on the holding structure. The upper casing is disposed on the panel device for fixing the panel device cooperatively with the bottom casing.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: May 21, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Chuan-Cho Ma
  • Patent number: 8446716
    Abstract: A combinative outer frame for a flat panel display (FPD) and a FPD and a manufacturing method of the FPD are provided. The outer frame for the FPD includes a front frame, a support frame, and an elastic pad. The support frame is disposed opposite to the front frame and includes a ridge which protrudes upon it; two sides of the elastic pad are joined to the front frame and the support frame respectively so that the ridge is pressed into it. This design causes tighter joining between different components of a frame, so as to prevent dust from invading FPD modules.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 21, 2013
    Assignee: AU Optronics Corporation
    Inventors: Chih-Shun Fan, Ting-Fang Lo
  • Patent number: 8444877
    Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a terminal cyclopentene group, along with at least two other ring groups.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: May 21, 2013
    Assignee: VVI Bright China Ltd.
    Inventors: Xinhua Chen, R. Amaranatha Reddy
  • Patent number: 8441586
    Abstract: An LC-based optical device compensates for differences in optical path lengths of polarization components of input beam. As a result, PDL and PMD of the optical device are reduced. The compensation mechanism may be a glass plate that is disposed in an optical path of a polarization component so that the optical path length of that polarization component can be made substantially equal to the optical path length of the other polarization component that traverses through a half-wave plate. Another compensation mechanism is a birefringent displacer that has two sections sandwiching a half-wave plate, wherein the two sections are of different widths and the planar front surface of the birefringent displacer can be positioned to be non-orthogonal with respect to the incident input light beam.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 14, 2013
    Assignee: Oclaro, Inc.
    Inventors: Xuefeng Yue, Ruibo Wang
  • Patent number: 8441471
    Abstract: A light source device with an improved contrast ratio between a bright portion and a dark portion of a displayed image and a display divide including the light source device. In order to change a reflectance of a portion of a reflection sheet 110, 111 with gradation in response to light and dark of portions of an image displayed on a display panel 201, a control mechanism 202 arranged to control the display panel 201 is provided. A first storing mechanism 104 and a second storing mechanism 105 arranged to store signals generated by the control mechanism 202, a calculation mechanism 103 arranged to calculate reflectances of portions of the reflection sheet 110, 111, a third storing mechanism 106 arranged to store the reflectances calculated by the calculation mechanism 103, and a reflectance control mechanism 107 arranged to control the reflection sheet 110, 111 based on the reflectances are provided.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: May 14, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hidekazu Oka
  • Patent number: 8441588
    Abstract: A display apparatus includes a display panel, a transformer disposed under the display panel and including a primary winding and a secondary winding which are separated from each other and an insulating section between the primary winding and the secondary winding, and a lower housing member on which the display panel is placed and to which the transformer is fixed. A first region corresponding to the insulating section of the transformer is defined in the lower housing member, and at least one hole is disposed in the first region of the lower housing member.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 14, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung-Ku Kang, Woo-Young Lee, Jong-Jae Lee
  • Patent number: 8441602
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 14, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 8436795
    Abstract: An electro-optical device includes a scanning-line driving circuit disposed in a peripheral region around the pixel area, and supplies, through scanning lines, a plurality of scanning signals to a plurality of pixel portions in the pixel area. The data-line driving circuit is disposed in the peripheral region, and supplies a plurality of sampling signals to a sampling circuit, which samples image signals and supplies the sampled image signals to data lines. A light-shielding film covers only the scanning-line driving circuit and the data-line driving circuit of a peripheral circuit portion disposed in the peripheral region.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: May 7, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Magoyuki Yokokawa
  • Patent number: 8436961
    Abstract: A backlight unit including holding members capable of preventing occurrence of a noise caused when the members are brought into contact with an optical member such as a diffusion plate. A backlight unit (4) includes a chassis (14) including a surface (14a) housing light sources (12), an optical member (11) having a flat plate shape and disposed above the light sources, and members (25) holding the optical member and attached to the housing surface, wherein each of the holding members includes a portion (25a) holding the optical member, and paired leg portions (25b and 25c) extending from the holding portion, elastically deformable in a direction in which the leg portions approach/leave each other and including paired foot portions (25d) disposed at lower ends of the leg portions, at least one of the paired foot portions being placed in a manner slidable on the housing surface in the approaching/leaving direction.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 7, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takahiro Yoshikawa
  • Patent number: 8436958
    Abstract: An electronic device having an impact resistance property is provided. The electronic device includes an organic light emitting diode (OLED) display device and a housing receiving the OLED display device. The OLED display device includes a panel assembly on which a plurality of OLEDs are formed and a printed circuit board electrically connected to the panel assembly. The housing includes a reinforcing housing having an impact absorption ability and defining first and second spaces, an upper housing disposed within the first space and physically coupled to the reinforcing housing, and a lower housing disposed within the second space and physically coupled to the reinforcing housing. The panel assembly is located in the first space.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyun-Hee Lee
  • Patent number: 8432517
    Abstract: A solution for an alignment film of a liquid crystal display device includes a photo decomposition type polyimide acid which forms the alignment film in response to radiation of a polarized light, wherein a viscosity of the solution is not more than 35 mPa·s.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: April 30, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 8431039
    Abstract: The present invention relates to compounds represented by the following Formula Ia, in which each R1-R6 can in each case be independently selected from hydrogen or hydrocarbyl (e.g., methyl); R7 is a multivalent linking group, such as L1 is a divalent linking group, such as a bond or divalent optionally substituted hydrocarbyl; each L2 independently represents a flexible segment, such as divalent linear or branched C1-C25 alkyl; each L3 independently represents a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t is from 1 to 4; m and p are each independently from 0 to 4 for each t, provided that the sum of m and p is at least 1 for each t; and E can be hydrogen or optionally substituted hydrocarbyl. The present invention also relates to compositions, such as liquid crystal compositions, and articles, such as optical elements, that include the compound represented by Formula Ia.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 30, 2013
    Assignee: Transitions Optical, Inc.
    Inventors: Xiao-Man Dai, Ruisong Xu, Meng He, Anil Kumar, Rachael L. Yoest, Chenguang Li
  • Publication number: 20130102218
    Abstract: A liquid crystal display includes a plurality of data lines and a plurality of pixels arranged in a matrix, wherein the plurality of pixels include a first pixel and a second pixel, and each of the first pixel and the second pixel includes a first subpixel electrode and a second subpixel electrode, a first switching element, a second switching element, a third switching element, and a voltage-changing capacitor, wherein a first source electrode on the first switching element and a second source electrode on the second switching element from the first pixel are connected to a data line, the first source electrode and the second source electrode of the second pixel are disconnected from the plurality of data lines, and the two terminals of the voltage-changing capacitor of the second pixel are shorted to each other.
    Type: Application
    Filed: November 30, 2012
    Publication date: April 25, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventor: Samsung Display Co., Ltd.
  • Patent number: 8427591
    Abstract: A viewing system has a parallax separation device placed in front of a liquid crystal display panel. The liquid display panel can be used to display a composite image that has many display segments, with each segment having two or more elongated image sections of different images. Each image section may occupy one or more columns of color pixels. The parallax separation device has a plurality of parallax separation elements, each aligned with a display segment for separating the different image sections as seen in a viewer's eyes. The parallax separation device has a barrier axis parallel to the longitudinal axis of the elongated image sections. The color sub-pixels in each pixel are arranged along a direction parallel to the barrier axis.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 23, 2013
    Assignee: 3DV Co. Ltd.
    Inventor: Kwok Wah Allen Lo
  • Patent number: 8427622
    Abstract: A liquid crystal display panel includes a lower substrate, a printed circuit board, at least one connection unit and a plurality of readout lines. The connection unit is adapted to connect the printed circuit board to a periphery region of the lower substrate, and has a driver. The readout lines are extended from the lower substrate to the printed circuit board through the connection unit having the driver.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 23, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Pao Yun Tang, Kei Hsiung Yang, Po Yang Chen
  • Publication number: 20130093975
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.
    Type: Application
    Filed: June 1, 2011
    Publication date: April 18, 2013
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Andreas Taugerbeck, Achim Goetz, Stephan Derow
  • Patent number: 8421952
    Abstract: A backlight for a display includes a plurality of illumination modules, each illumination module including a light source and a reflective member. A portion of the reflective member is disposed over the light source. A liquid crystal display panel is disposed over the plurality of illumination modules. The reflective member is configured such that a majority of light from the light source is directed parallel to the liquid crystal display panel, to provide uniform illumination of the liquid crystal display panel. In some embodiments, the light source is at least one semiconductor light emitting diode.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: April 16, 2013
    Assignee: Philips Lumileds Lighting Company, LLC
    Inventors: Gerard Harbers, Takaaki Yagi, Johannes W. H. S. Smitt, Serge J. Bierhuizen
  • Patent number: 8421955
    Abstract: An LCD device using LEDs as light sources provided herein is capable of reducing the manufacturing cost and the power consumption by a reduction in the number of LEDs used. A backlight according to the present invention includes LEDs mounted on a wiring board and a light guide plate having a matrix array of light guide plate blocks assigned the LEDs. The number of LEDs assigned to the block located in a peripheral area is smaller than the number assigned to the block located around the center to reduce the number of LEDs used in the backlight. If a ratio of the brightness in a peripheral area of the screen to the brightness in a central area is 60% or higher, the human eye does not perceive non-uniform luminance. Thus, the manufacturing cost and the power consumption of the LCD device can be reduced.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 16, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hidenao Kubota, Satoshi Ouchi
  • Patent number: 8411228
    Abstract: A plurality of LEDs (12) include an LED group (12G) wherein the LEDs are arranged in a row, and at least one LED (12T) not in the row. The position of the LED group (12G) in a row on a light guide plate (41) is specified by bringing the LED (12T) into contact with the light guide plate (41).
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: April 2, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Chihiro Watanabe
  • Patent number: 8395721
    Abstract: A metal frame includes a first base portion and a first wall portion rising from the first base portion at a position excluding sections of a peripheral edge portion of the first base portion. A resin frame includes a second base portion arranged so as to extend from a region on a central side of the first wall portion of the first base portion to the plurality of sections of the peripheral edge portion, and a second wall portion rising from the second base portion above the plurality of sections. A liquid crystal display panel is supported on an upper surface of the second base portion of the resin frame. A peripheral edge of the liquid crystal display panel is positioned above the first wall portion. The second wall portion of the resin frame is positioned outside the peripheral edge of the liquid crystal display panel.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 12, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 8395722
    Abstract: An electronic device housing may have upper and lower portions that are attached with a hinge. At least one portion of the housing may have a rear planar surface and peripheral sidewalls having edges. A display module may be mounted in the housing. The display module may have glass layers such as a color filter glass layer and a thin-film transistor substrate. The color filter glass layer may serve as the outermost glass layer in the display module. The edges of the display module may be aligned with the edges of the peripheral housing sidewalls to create the appearance of a borderless display for the electronic device. The display module may be provided with an opening that allows a camera or other electronic components to receive light. Traces may be provided on the underside of the thin-film transistor substrate to serve as signal paths for the electrical components.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: March 12, 2013
    Assignee: Apple Inc.
    Inventors: Dinesh C. Mathew, Thomas W. Wilson, Jr., Victor H. Yin, Bryan W. Posner, Chris Ligtenberg, Brett W. Degner, Peteris K. Augenbergs
  • Patent number: 8394293
    Abstract: The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: March 12, 2013
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Axel Jansen, Detlef Pauluth, Harald Hirschmann, Markus Czanta
  • Patent number: 8390771
    Abstract: A device includes: an active matrix substrate (20a) including a plurality of first display lines (11a) extending parallel to each other and a plurality of second display lines extending parallel to each other in a direction crossing the first display lines (11a); and a counter substrate (30a) including a black matrix (B) provided so as to overlap the first display lines (11a) and the second display lines, wherein the active matrix substrate (20a) includes a plurality of touch panel lines (11b) extending parallel to each other in a direction in which the first display lines (11a) extend, and portions of the black matrix (B) overlapping the second display lines are electrically conductive and are configured so as to come into contact with the touch panel lines (11b) when the surface of the active matrix substrate (20a) or the counter substrate (30a) is pressed.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: March 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takehiko Sakai, Dai Chiba, Yoshiharu Kataoka, Takuya Watanabe
  • Patent number: 8388861
    Abstract: A LC compound and a LC mixture are provided. The LC mixture includes a compound represented by (I) and at least one compound selected from a group consisting of compounds represented by (II) to (IV): in which X1 is F, —Cl, —CF3, or —OCF3; R, R11, and R12 are independently H, a C1-C15 alkyl group, or a C2-C15 alkenyl group; A1 is 1,4-phenylene; A11, A12, A13, and A14 are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; at least one of A2, A3, and A4 is 2,5-indanylene, and the others are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; L1 is —F2CO—; Z11, Z12, and Z13 are independently a single bond, —O—, —F2CO—, or —COO—; m is 1; n, o and p are independently 0, 1, 2 or 3, and n+o+p?3.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 5, 2013
    Inventors: Chun-Chih Wang, Wen-Chung Chu, Ren-Jie Chiou, Shi-Zhi You, Hong-Wei Zhang, Yu-Dong Tan
  • Patent number: 8390759
    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 9, 2012
    Date of Patent: March 5, 2013
    Assignee: Apple Inc.
    Inventors: David A. Doyle, Joshua G. Wurzel, Shawn R. Gettemy
  • Patent number: 8390606
    Abstract: A display device includes: a plurality of display interconnects (3) provided so as to extend parallel to each other; a drive circuit (44aa) provided at one ends of the display interconnects (3), and connected to the display interconnects (3); a first interconnect (Wa) provided so as to cross the other ends of the display interconnects (3) in an insulating state; and a second interconnect (Wb) provided so as to cross the one ends of the display interconnects (3) in an insulating state, and so as to be connected to the first interconnect (Wa). When any of the display interconnects (3) is disconnected, a display signal from the drive circuit (44aa) is supplied to the other side of the disconnected display interconnect (3) sequentially through the second interconnect (Wb) and the first interconnect (Wa) in this order via an amplifier circuit (A).
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryohki Itoh, Takaharu Yamada, Isao Ogasawara, Takashi Okamoto
  • Patent number: 8384844
    Abstract: When a defective pixel causing light leakage is detected in a flat display panel, an optical modulation region is formed in a substrate by emitting a laser beam such that a virtual image is displayed at a position corresponding to the defective pixel. Accordingly, quality of the flat display panel may be improved thereby increasing manufacturing process yield.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Jin Lee, Jun Ho Lee, Gi Cheon Yoon
  • Patent number: 8384845
    Abstract: The side surface of the light guide plate includes an incident surface which faces the light source unit in an opposed manner, and a fixing surface which is directed in the left-and-right direction orthogonal to the top-and-bottom direction which is the direction along which the light source unit and the incident surface each other in an opposed manner. An engaging portion which is engageable with a lower frame is formed on the fixing surface or an edge portion which forms the fixing surface. The engaging portion is configured to allow a change of a distance between the incident surface and the lower frame due to expansion or shrinkage of the light guide plate while restricting the movement of the light guide plate in the top-and-bottom direction.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: February 26, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoshifumi Sekiguchi, Yoshiro Mikami, Ikuo Hiyama, Naoki Iwasaki, Masaki Tsubokura
  • Patent number: 8385055
    Abstract: An electronic device and a display panel thereof are provided. The electronic device includes a first display panel and a casing. The first display panel has a first displaying part and a second displaying part. The first display panel includes a first bending mechanism which is disposed between the first displaying part and the second displaying part to bend or spread the first display panel. The casing has a first surface and a second surface opposite to the first surface. The casing includes a rail mechanism which is disposed on the second surface. The second displaying part is slid on the rail mechanism to shift the first display panel relatively to the casing.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: February 26, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-Jen Kao, Yi-Kai Wang, Yu-Rung Peng, Tsung-Hua Yang, Tarng-Shiang Hu
  • Patent number: 8383008
    Abstract: A liquid crystal composition and a liquid crystal display employing the same are provided. The liquid crystal composition includes: 100 parts by weight of at least one nematic liquid crystal; 1-20 parts by weight of at least one photosensitive chiral compound; and 1-20 parts by weight of at least one non-photosensitive chiral compound.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 26, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Hui-Fang Tseng, Chih-Lung Chin, Wan-Chi Chen, Chun-Ming Wu, Kung-Lung Cheng, Shih-Hsien Liu
  • Patent number: RE44071
    Abstract: A method for patterning a multilayered conductor/substrate structure includes the steps of: providing a multilayered conductor/substrate structure which includes a plastic substrate and at least one conductive layer overlying the plastic substrate; and irradiating the multilayered conductor/substrate structure with ultraviolet radiation such that portions of the at least one conductive layer are ablated therefrom. In a preferred embodiment, a projection-type excimer laser system is employed to rapidly and precisely ablate a pattern from a mask into the at least one conductive layer. Preferably, the excimer laser is controlled in consideration of how well the at least one conductive layer absorbs radiation at particular wavelengths. Preferably, a fluence of the excimer laser is controlled in consideration of an ablation threshold level of at least one conductive layer.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: March 12, 2013
    Assignee: Streaming Sales LLC
    Inventors: Kouroche Kian, Ramin Heydarpour