Having Significant Detail Of Cell Structure Only Patents (Class 349/84)
  • Patent number: 8416351
    Abstract: A liquid crystal display screen includes a resistance-type touch panel and a liquid crystal display panel. The touch panel includes a first electrode plate and a second electrode plate opposite to the first electrode plate. The first electrode plate includes a first substrate and a first transparent conductive layer located on the first substrate. The second electrode plate includes a common substrate and a second transparent conductive layer. The liquid crystal display panel includes an upper optical polarizer, an upper substrate, an upper electrode, an upper alignment layer, a liquid crystal layer, a lower alignment layer, a thin film transistor panel, and a lower optical polarizer, from top to bottom in sequence. The upper substrate is the same with the common substrate. The upper optical polarizer is sandwiched between the second transparent conductive layer and the common substrate.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 9, 2013
    Assignee: Beijing FUNATE Innovation Technology Co., Ltd.
    Inventors: Liang Liu, Chen Feng, Li Qian
  • Patent number: 8411240
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, scanning lines, signal lines, pixel switches, first electrodes, a scanning line drive circuit, a second electrode, a voltage supply wiring, a control mechanism, a first switching mechanism, a second switching mechanism, and an output timing switching mechanism. The output timing switching mechanism is configured to simultaneously output a second scanning signal of switching the pixel switch into conductive state to the scanning lines, based on the control signal.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 2, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Kenji Harada, Takamitsu Fujimoto, Takahiro Oonuma
  • Publication number: 20130070180
    Abstract: A display panel (4) is a display panel having a light-shield tape strip (21) and a light-shield tape strip (22), both light-shield tape strips are attached to the inside of the perimeter of the display panel (4). A first edge (21a) is formed at an end of the light-shield tape strip (21) of the display panel (4), and a second edge (22a) is formed at an end of the light-shield tape strip (22) of the display panel (4) so as to face the first edge (21a). The first edge (21a) and the second edge (22a) of the display panel (4) are shaped so as to be engaged with each other at least partly.
    Type: Application
    Filed: April 21, 2011
    Publication date: March 21, 2013
    Inventor: Toru Kuriyama
  • 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: 8379173
    Abstract: A liquid crystal display device with a front face plate having a first section, a second section, and a third section is disclosed. The first section has a light transmissive section and the second section being a light shielding section. The third section may be arranged between the first section and the second section. The third section has a transmittance value which is lower than that of the first section and higher than that of the second section. A method for forming a front face plate assembly of a liquid crystal display device, which may include a front face plate, is also disclosed.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: February 19, 2013
    Assignee: Sony Corporation
    Inventors: Hisanori Tsuboi, Hiroaki Fujii, Soya Araki, Ryoichi Teramoto, Takeshi Sakuma, Kiyotaka Ninomiya, Norio Uda
  • Patent number: 8373831
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, scanning lines, signal lines, pixel switches, first electrodes, a scanning line drive circuit, a second electrode, a voltage supply wiring, a control mechanism, a first switching mechanism, a second switching mechanism, and an output timing switching mechanism. The output timing switching mechanism is configured to simultaneously output a second scanning signal of switching the pixel switch into conductive state to the scanning lines, based on the control signal.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 12, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Kenji Harada, Takamitsu Fujimoto, Takahiro Oonuma
  • Patent number: 8373818
    Abstract: A multiple primary color display device according to the present invention includes a pixel defined by a plurality of sub pixels. The plurality of sub pixels include a first sub pixel to display a first color having a first hue, a second sub pixel to display a second color having a second hue, a third sub pixel to display a third color having a third hue, and a fourth sub pixel to display a fourth color having a fourth hue. When a color represented by the input signal is changed from black to white via a color of a prescribed hue, luminance levels of the plurality of sub pixels are set such that the luminance level of each of the first sub pixel, the second sub pixel and the third sub pixel is started to be increased without increasing the luminance level of the fourth sub pixel and such that the luminance level of the third sub pixel is increased at a lower rate than that of the luminance level of each of the first sub pixel and the second sub pixel.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: February 12, 2013
    Assignee: Sharp Kabushiki Kaihsa
    Inventors: Kazunari Tomizawa, Yuichi Yoshida, Akiko Sato
  • Patent number: 8373729
    Abstract: A technique for reducing the kickback voltage error between two or more common voltage signal lines in a display device is provided. The kickback voltage error may be caused by driving a first and second common voltage at different levels. In one embodiment, a common voltage offset may be applied to the second common voltage such that the magnitude of the voltage kickback error is approximately equalized at the maximum and minimum pixel voltages for pixels coupled to the second common voltage. A data voltage offset, which may be determined based upon gray level data, may be applied to the data voltage supplied to the pixels coupled to the second common voltage. The foregoing technique may compensate for the kickback voltage error between the first and second common voltage lines, thereby reducing visual artifacts and improving color accuracy of the display.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: February 12, 2013
    Assignee: Apple Inc.
    Inventors: Yongman Lee, Hopil Bae
  • Patent number: 8368849
    Abstract: There is provided a polarizer integrally containing view angle compensating film used in an in-plane switching liquid crystal display (IPS-LCD) filled with liquid crystal (??>0) having positive dielectric anisotropy and an in-plane switching liquid crystal display comprising the same. More particularly, there is provided an integrated polarizer capable of being used to manufacture a thin polarizer and securing a good view angle by employing a view angle compensating film as a protective film of a polarizing film forming the polarizer and an IPS-LCD comprising the same. The integrated polarizer comprises a polarizing film; a protective film attached to one surface of the polarizing film; and a +A plate coated with a +C plate attached to the other surface of the polarizing film. The +C plate is coated in the form of liquid crystals.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: February 5, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jnn-Won Chang, Dae-Hee Lee, Moon-Soo Park
  • Patent number: 8368860
    Abstract: The present invention provides a liquid crystal display panel and a method of manufacturing the liquid crystal display panel capable of reducing or eliminating metal erosion in an area in which a conductive dot is formed. In some embodiments, a display panel comprises a common electrode formed on an upper substrate, a first electrode formed on a lower substrate opposing the upper substrate and configured to receive a common voltage, a conductive dot formed between the upper substrate and the lower substrate and positioned to supply the common electrode with the common voltage, an insulating layer having a contact hole exposing the first electrode, and a second electrode formed on the insulating layer to connect the conductive dot and the first electrode, wherein a cross sectional area of the conductive dot between the upper substrate and the lower substrate is greater than a cross sectional area of an opening of the contact hole.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Han Park, Young Nam Yun, Ji Hye Moon
  • Publication number: 20130027639
    Abstract: A surface polymer-assisted vertically aligned (SPA-VA) liquid crystal (LC) cell has a surface alignment layer of surface localized polymer nano spikes capable of controlling the pretilt angle of liquid crystal molecules and ensuring fast switching characteristics. The deposition of the polymer nanospikes as a part of the alignment layer is achieved by polymerizing a small amount of a reactive monomer in vertically aligned liquid crystal with or without an applied voltage. Due to the alignment of liquid crystal molecules by the surface alignment layers, the polymerized polymer acts as an internal surface to modify and control the field-induced reorientation of the liquid crystal molecules. The SPA-VA LC cell realizes a stable alignment and the considerable advantage of the formation of polymer spikes via UV irradiation on both substrates of the cell. Furthermore, the switch-off of a SPA-VA is fast due to the enhanced surface anchoring strength by the surface-localized polymer nano spikes.
    Type: Application
    Filed: February 15, 2011
    Publication date: January 31, 2013
    Applicant: KENT STATE UNIVERSITY
    Inventors: Liang-Chy Chien, Volodymyr Borshch, Jeoung-Yeon Hwang
  • Patent number: 8363195
    Abstract: A liquid crystal display panel (10) includes: an active-matrix substrate (not illustrated), a counter substrate (not illustrated), liquid crystals sandwiched between the active-matrix substrate and the counter substrate; and a plurality of pixels (P) arranged in rows and columns. Each of the rows is provided with a plurality of gate signal lines (12) for supplying scanning signals having different pulse widths from each other, and the pixels of the same row are divided into a plurality of groups according to which of the gate signal lines (12) the pixels are connected to.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: January 29, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yohsuke Yokoyama
  • Publication number: 20130010234
    Abstract: An optical sheet having a single sheet structure for an edge-lighting backlight unit using a printless light guide plate, a method of manufacturing the same, and a liquid crystal display apparatus using the same are provided. The optical sheet having a single sheet structure includes a first prism sheet having a prism pattern formed on the upper surface thereof, and a second prism sheet having a prism pattern formed on the upper surface thereof. Further, prism ridges of the first prism sheet are attached to the bottom surface of the second prism sheet by means of an adhesive so that the prism pattern of the first prism sheet and the prism pattern of the second prism sheet are directed in the same direction.
    Type: Application
    Filed: June 18, 2012
    Publication date: January 10, 2013
    Applicant: GLOTEC CO., LTD.
    Inventors: Gi Suk SUNG, Chang Kun KIM
  • Patent number: 8351003
    Abstract: A liquid crystal display device includes first and second substrates with a liquid crystal layer therebetween. A planer electrode and a plurality of overlapping linear electrodes are formed on the first substrate with an insulation film disposed between the planar electrode and the plurality of linear electrodes. A projecting portion is formed on one of the first and second substrates and an alignment film is formed on each of the first and second substrates and on the projection portion. The alignment films are made of a photo-decomposition-type material, and a film thickness of the alignment film on the projecting portion and a film thickness of a portion of the alignment film facing the projecting portion satisfy a predetermined relationship.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: January 8, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 8345199
    Abstract: There is provided a liquid crystal display device of high image quality, which has high brightness and excellent viewing angle characteristics. A liquid crystal display device of the present invention includes a pair of polarizing plates, a first electrode, a second electrode provided so as to oppose the first electrode, and a liquid crystal layer interposed between the first electrode and the second electrode. Each of a plurality of pixels includes a first region and a second region which are separated by a line parallel to or perpendicular to the directions of the transmission axes of the pair of polarizing plates. The first electrode includes, in each of the first region and the second region, a plurality of first branch portions extending in a first direction and a plurality of second branch portions extending in a second direction that is different from the first direction. Each of the plurality of first branch portions in the first region has a first width.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: January 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Hiroyuki Ohgami, Masakazu Shibasaki, Masumi Kubo, Yuichi Iyama, Masayuki Soga
  • Patent number: 8345210
    Abstract: A gate signal transmission circuit structure is provided which is disposed on a peripheral circuit region of a display panel and includes at least a driver bonding pad, at least a transmission line and a plurality of connection lines. The transmission line is disposed around the driver bonding pad. The connection lines are connected between the driver bonding pad and the transmission line, wherein a plurality of holes exist between the connection lines, and the thickness of each connection line is substantially the same as the thickness of the transmission line.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: January 1, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Kai-Ting Chang, Han-Tung Hsu
  • Patent number: 8344990
    Abstract: A display panel with half source driver structure and a display data supplying method thereof are disclosed. The display panel includes a plurality of gate driving circuits, a data line, a plurality of first gate lines and second gate lines, a plurality of first pixels and second pixels. The first pixels are arranged along the data line and form two columns. The first pixels are disposed at one side of the data line and electrically coupled to the respective first gate lines. The second pixels are arranged along the data line and form two columns. The second pixels are disposed at an opposite side of the data lines and electrically coupled to the respective second gate lines. The data line has a bending portion between each two sequentially connected first pixels. The gate driving circuits are electrically coupled to the first gate lines and the second gate lines.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 1, 2013
    Assignee: AU Optronics Corp.
    Inventors: Ken-Ming Chen, Chi-Mao Hung, Chao-Liang Lu
  • Patent number: 8339549
    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 14, 2011
    Date of Patent: December 25, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu, Yuko Matsumoto
  • Patent number: 8339564
    Abstract: A liquid crystal display includes: a pair of substrates having display regions in positions facing each other and surrounding regions around the display regions, respectively, one of the pair of substrates including a wire made of a material blocking an ultraviolet ray in the surrounding region; a liquid crystal layer sandwiched between the pair of substrates; and a sealing layer arranged so as to overlap a part or the whole of the wire in a direction where the pair of substrates face each other, and sealing the liquid crystal layer, in which the sealing layer is made of a light-curable resin or a combination type resin and includes a photopolymerization initiator, and the content of the photopolymerization initiator is within a range of 0.01 wt % to 1 wt %, and the photopolymerization initiator has a wavelength peak of 320 nm to 420 nm.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: December 25, 2012
    Assignee: Sony Corporation
    Inventor: Tomoko Maruyama
  • Patent number: 8330902
    Abstract: The invention relates to a display cell, comprising two transparent, equidistant plates, wherein the gap between the plates is filled with a liquid-crystal material-containing layer, characterized in that the liquid-crystal material-containing layer is inhomogeneous and anisotropic, wherein it has a first region made up of compartments, which comprise entirely, substantially or mainly liquid-crystal material, and a second, coherent region which comprises entirely, substantially or mainly an organic polymer material and surrounds the compartments made of liquid-crystal material. In addition, the invention relates to a liquid-crystal material-containing mixture which can be used to produce the layer between the plates, and to a method for producing the display cell.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: December 11, 2012
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Monika Bauer, Frank Kuschel, Joachim Mueller
  • Publication number: 20120307183
    Abstract: A fluid ingress resistant interactive display device is disclosed herein. The device includes one or more gasket layers to serve as a fluid barrier to resist fluid from entering an interior of the device.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Bernie Schultz, Rajesh Manohar Dighde
  • Patent number: 8325296
    Abstract: A light-transmitting substrate has an uneven profile on at least one surface thereof, the light-transmitting substrate contains a thermoplastic resin and a flat translucent particle; a tilt angle of the uneven profile on at least one surface of the light-transmitting substrate has the following distribution: (a) an integral value of frequencies of from 0° to less than 1.0° is from 0% to less than 25%, (b) an integral value of frequencies of from 1.0° to less than 10° is from 60% to less than 100%, and (c) an integral value of frequencies of 10° or more is from 0% to less than 25%, and an average distance between trough and crest in the uneven profile is from 10 to 300 ?m.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 4, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Jun Watanabe
  • Patent number: 8310638
    Abstract: Disclosed is a display device that can achieve a reduction of power consumption without deteriorating the aperture ratio. A liquid crystal capacitance element (Clc) is formed by being sandwiched between a pixel electrode (20) and an opposite electrode (80). The pixel electrode (20), one end of a first switching circuit (22), one end of a second switching circuit (23), and the first terminal of a second transistor (T2) form an internal node (N1). The other end of the first switching circuit (22) and the other end of the second switching circuit (23) are connected to a source line (SL). The second switching circuit (23) includes a series circuit of a transistor (T1) and a diode (D1), and an output node (N2) is formed of the control terminal of the transistor (T1), the second terminal of the transistor (T2), and one end of a boost capacitance element (Cbst).
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: November 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshimitsu Yamauchi, Naoki Ueda, Fumiki Nakano
  • Patent number: 8305537
    Abstract: A pixel array including first signal lines, second signal lines, switch devices, and pixel units coupling to the first signal lines and the second signal lines through the switch devices is provided. The first signal lines and the second signal lines are formed on different films. Each of the pixel units includes a common electrode line. In each of the pixel units of an ith row, the common electrode line has at least one first line segment and at least one second segment coupled to each other and formed on different films, and a distance between an (i?1)th first signal line and the first line segment is not equal to that between the (i?1)th first signal line and the second line segment. The first signal lines are either scan lines or data lines of the pixel array, and the second signal lines are the other kind.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 6, 2012
    Assignee: Chunghwa Pictue Tubes, Ltd.
    Inventor: Hsi-Ming Chang
  • Publication number: 20120274880
    Abstract: A method for reducing screen bending is mainly applied for a conventional large-size goggle free 3D image display device, in which an improved method of laminated fixation is proposed for a screen bending defect that occurs as the screen size increases, so as to reduce cross-talk caused by screen bending, thereby achieving an objective of displaying optimum 3D images.
    Type: Application
    Filed: March 22, 2012
    Publication date: November 1, 2012
    Applicant: UNIQUE INSTRUMENTS CO.LTD
    Inventor: MING-YEN LIN
  • Patent number: 8284345
    Abstract: A silicon light-emitting element includes a first conductivity type silicon substrate 10 having a first surface 10a and a second surface 10b on a side opposite to the first surface 10a, an insulating film 11 provided on the first surface 10a of the silicon substrate 10, a silicon layer 12 provided on the insulating film 11, and having a second conductivity type different from the first conductivity type, a first electrode 13 provided on the silicon layer 12, and a second electrode 14 provided on the second surface of the silicon substrate, and the silicon substrate 10 has a carrier concentration of 5×1015cm?3 to 5×1018cm?3, the silicon layer 12 has a carrier concentration of 1×1017cm?3 to 5×1019cm?3, and that is larger by one digit or more than the carrier concentration of the silicon substrate 10, and the insulating film 11 has a film thickness of 0.3 nm to 5 nm. Accordingly, a silicon light-emitting element that is applicable to a silicon photonics light source is realized.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 9, 2012
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Shucheng Chu, Hirofumi Kan
  • Publication number: 20120249934
    Abstract: A display apparatus and a liquid crystal display device are provided. The display apparatus comprises a display device for displaying an image and a diffractive optical element. The diffractive optical element comprises pixel unit regions. Each of the pixel unit regions has a long pixel side and a short pixel side adjacent to each other. The diffractive optical element is disposed on a light emitting side of the display device and comprises first grating regions and second grating regions. The first grating regions have a first diffraction grating. The second grating regions have a second diffraction grating. An azimuth angle of the first diffraction grating is different from an azimuth angle of the second diffraction grating.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: CHI MEI CORPORATION
    Inventors: Wang-Yang Li, Ting-I Wu
  • Publication number: 20120242927
    Abstract: An active optical device and a display apparatus are provided. The active optical device includes a graphene layer; a plurality of carbon nanotubes (CNTs) disposed on the graphene layer; a transparent electrode layer spaced apart from the plurality of CNTs; and a liquid crystal layer disposed between the graphene layer and the transparent electrode layer. The display apparatus includes a display unit for displaying at least one of two-dimensional (2D) and three-dimensional (3D) images; and the active optical device disposed on the display unit.
    Type: Application
    Filed: November 7, 2011
    Publication date: September 27, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Un-jeong Kim, Sun-il Kim, Sang-jin Lee
  • Publication number: 20120224124
    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 or PSA type (“polymer sustained” or “polymer sustained alignment” respectively).
    Type: Application
    Filed: October 4, 2010
    Publication date: September 6, 2012
    Inventors: Achim Goetz, Christoph Marten, Sven Christian Laut, Andreas Taugerbeck
  • Publication number: 20120224125
    Abstract: A liquid crystal display includes: a first substrate including a first through-hole; a second substrate facing the first substrate and including a second through-hole corresponding to the first through-hole; a sealant coupling the first substrate and the second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a spacer disposed between the first substrate and the second substrate; and a supporting assistance member including a third through-hole connected to the first through-hole and the second through-hole, wherein the supporting assistance member includes a first supporting assistance member made with the same material as the spacer.
    Type: Application
    Filed: August 16, 2011
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Kwun SON, Sang-Moon MOH, Jin-Suk SEO, Mi-Sun LEE, Hye-Rhee HAN
  • Publication number: 20120206674
    Abstract: A film construction (610) includes a group of microlayers that reflect normally incident light polarized along a first axis more than normally incident light polarized along a second axis. The microlayers are arranged into optical repeat units (ORUs) that have a layer thickness distribution along a thickness axis perpendicular to the first and second axes that provides the group of microlayers with an intermediate reflectivity over an extended reflection band for a given incidence condition. The ORUs include thinner ORUs whose thicknesses are less than an average thickness, and thicker ORUs whose thicknesses are greater than the average thickness. The group of microlayers is optically immersed in a medium having a refractive index greater than air, such that “supercritical light” can propagate through the microlayers. The microlayers are oriented such that, on average, the thinner ORUs are closer than the thicker ORUs to an output surface of the construction.
    Type: Application
    Filed: October 22, 2010
    Publication date: August 16, 2012
    Inventors: Michael F. Weber, Timothy J. Nevitt, Tao Liu, John A. Wheatley
  • 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
  • Publication number: 20120200809
    Abstract: An object is to provide a liquid crystal display device using a liquid crystal material exhibiting a blue phase, in order to enable a higher contrast. In a liquid crystal display device which includes a liquid crystal layer exhibiting a blue phase, a first structure body and a second structure body are provided over a first electrode layer (a pixel electrode layer) and a second electrode layer (a common electrode layer), respectively. The first structure body and the second structure body are insulators each having a higher dielectric constant than a liquid crystal material used for the liquid crystal layer, and are provided to project into the liquid crystal layer.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 9, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO.,
    Inventors: Daisuke KUBOTA, Tetsuji Ishitani, Shuji Fukai
  • Patent number: 8212986
    Abstract: An LCD device comprises upper substrate, lower substrate, and a liquid crystal (LC) cell disposed therebetween. The LC cell comprises liquid crystals. According to the present invention, in the LCD device which applies voltage to the liquid crystals to control transmissive light for proceeding display, the liquid crystals are applied with a voltage larger than a predetermined voltage for proceeding display. The reflect light and the transmissive light of the liquid crystals are the predetermined color under a condition without applying the voltage thereto.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: July 3, 2012
    Assignee: Chimei Innolux Corporation
    Inventor: Minoru Shibazaki
  • Patent number: 8212968
    Abstract: A liquid crystal device comprising: a pair of substrates having an electrode arrangement thereon; an orientation control means provided on at least one of said substrates; and a ferroelectric or antiferroelectric liquid crystal layer interposed between said substrates, said liquid crystal layer being uniaxially oriented by virtue of said orientation control means, wherein means for suppressing an orientation control effect of said orientation control means with respect to said liquid crystal layer is provided between said liquid crystal layer and said orientation control means.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 3, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshimitsu Konuma, Takeshi Nishi, Michio Shimizu, Harumi Mori, Kouji Moriya, Satoshi Murakami
  • Publication number: 20120162590
    Abstract: A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate opposed to the first substrate, and a second electrode on the second substrate. The second electrode corresponds to the first electrode. The liquid crystal display device also includes a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a plurality of liquid crystal molecules and at least one movement control member. The movement control member in the liquid crystal structure restricts a movement of the liquid crystal molecules.
    Type: Application
    Filed: June 21, 2011
    Publication date: June 28, 2012
    Inventors: Gee-Bum Kim, Jae-Hyun Kim, Won-Sang Park, Jae-Ik Lim, Yong-Seok Yeo, Jong-In Baek
  • Publication number: 20120154715
    Abstract: An active optical device includes a substrate; a plurality of refractive index variable regions formed on the substrate; and a voltage applier which applies an electric field to the plurality of refractive index variable regions.
    Type: Application
    Filed: September 13, 2011
    Publication date: June 21, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-il KIM, Jun-hee CHOI
  • Patent number: 8203516
    Abstract: A liquid crystal display (LCD) includes a substrate, gate lines that extend in a first direction, data lines that cross the gate lines and extend in a second direction, and unit pixels. Each unit pixel includes a first subpixel electrode connected to an ith gate line by a first switching device, a second subpixel electrode connected to the ith gate line by a second switching device, and a third switching device including a drain electrode capacitively coupled to the second subpixel electrode and a source electrode connected to the first subpixel electrode. The third switching device is connected to an (i+1)th gate line, the first and second subpixel electrodes between the ith gate line and the (i+1)th gate line are arranged in an order opposite that of the first and second subpixel electrodes between the (i+I)th gate line and an (i+2)th gate line.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: June 19, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seok-Woo Kim
  • Publication number: 20120147303
    Abstract: A display device is provided in which reduction of reflected light is realized. Also a multilayer substrate is provided in which light reflectance is reduced even when the substrate has a plurality of layers that differ in refractive index from each other. In the display device of one embodiment, the reflectance of light reflected by the internal structure, of light incident on the internal structure through a display screen, is less than 1.0%. The multilayer substrate of one embodiment includes a first layer and a second layer disposed adjacently to the first layer. The refractive index of the second layer varies continuously from an interface where the second layer is adjacent to the first layer in a direction from the first layer, with the variation being started at a value of the refractive index at the interface where the first layer is adjacent to the second layer.
    Type: Application
    Filed: May 26, 2010
    Publication date: June 14, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Nobuaki Yamada, Kazuyoshi Sakuragi, Akiyoshi Fujii, Tokio Taguchi
  • 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: 8194209
    Abstract: An optical low-pass filter is constituted with a liquid crystal substrate including a layer of liquid crystal. The optical low-pass filter includes: a first liquid crystal part in which the liquid crystal is aligned along a first direction; and a second liquid crystal part in which the liquid crystal is aligned along a second direction different from the first direction. The first liquid crystal part and the second liquid crystal part are disposed in an alternately repeated fashion.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: June 5, 2012
    Assignee: Nikon Corporation
    Inventor: Toru Iwane
  • Publication number: 20120127140
    Abstract: A liquid crystal display, alone or in combination with any kind of computing device, may comprise a plurality of pixels, each pixel comprising a plurality of sub-pixels, each sub-pixel comprising a transmissive part and a reflective part, wherein a cross sectional area of the reflective part is greater than half of a total cross sectional area of an entire size of that sub-pixel; one or more auxiliary components that are in a non-transmissive part of the sub-pixel and that are configured to provide one or more auxiliary functions that do not affect optical performance of that sub-pixel. In various embodiments the auxiliary components are electronic digital memory logic or drivers; electronic high refresh rate logic or drivers; touch sensor elements, and the display further comprising a touch panel sheet over the pixels; light sensors; photodiodes; photovoltaic solar power generating cells; organic light emitting diodes.
    Type: Application
    Filed: June 7, 2011
    Publication date: May 24, 2012
    Inventors: John Ryan, Ruibo Lu, Carllin Vieri, Mary Lou Jepsen
  • Publication number: 20120120338
    Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels; and a structure which is formed in an outer area located next to the display area and is substantially the same as at least one of the plurality of domain regulating structures.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Publication number: 20120105494
    Abstract: A liquid crystal display (LCD) panel is disclosed. The LCD panel includes a plurality of pixels arranged in rows and columns, a first sub gate-line coupled to first row-pixels that are adjacent to a lower side of the first sub gate-line, a second sub gate-line coupled to second row-pixels that are adjacent to an upper side of the second sub gate-line, a plurality of gate-lines between the first sub gate-line and the second sub gate-line, a plurality of even data-lines coupled to first column-pixels that are adjacent to the even data-lines, and a plurality of odd data-lines coupled to second column-pixels that are adjacent to the odd data-lines. Here, each gate-line of the plurality of gate lines is coupled to first row-pixels that are adjacent to a lower side of the gate-line and second row-pixels that are adjacent to an upper side of the gate-line.
    Type: Application
    Filed: May 9, 2011
    Publication date: May 3, 2012
    Inventors: Seung-Kyu Lee, Dong-Hoon Lee, Chul-Ho Kim, Jin-Woo Park
  • Publication number: 20120081638
    Abstract: A light sensing element includes a photodiode formed on a semiconductor substrate surface, and a laminated structure formed on the photodiode, wherein the laminated structure includes a first layer formed of a silicon oxide film, a second layer formed on the first layer and formed of a silicon nitride film, and a third layer formed on the second layer and formed of a polysilicon film.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 5, 2012
    Applicant: SONY CORPORATION
    Inventors: Hiroshi Yumoto, Shuji Yoneda, Yusuke Murakawa, Hideo Yamagata
  • Patent number: 8149495
    Abstract: A reflective display, comprising a plurality of pixels (10), each having a first electrode, a light-modifying layer (12), and a second electrode (3; 16) arranged to enable formation of an electric field in the light-modifying layer (12) through application of a voltage between the electrodes. The pixel (10) further includes an active portion (16) which is switchable between light-modifying states by means of said electric field, and an inactive portion (17). The inactive portion (17) is arranged for reflecting light so as to direct at least a fraction of incoming light (20) impinging on the inactive portion (17) towards the active portion (16). As a result, a contrast ratio of the reflective display is improved, since light is now directed from the inactive portion towards the active portion and thus contributes to the displayed image as observed by a viewer.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: April 3, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Sander Jurgen Roosendaal, Martinus Hermanus Wilhelmus Maria Van Delden
  • 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
  • Patent number: 8144289
    Abstract: The present invention discloses a liquid crystal display panel, a thin film transistors array substrate and curing line structure thereof in use of phase separation alignment (PSA) process. The curing line structure has a contact pad allocated on a periphery area of the substrate, and a transmission line extending from the contact pad, passing over a sealant-distributing area of the substrate, to be electrically connected with at least one common line located on a pixel expression area of the substrate. A predetermined interval is kept between the transmission line and each of the adjacent transmission lines on the substrate to ensure a non-electrical contact between the transmission line and the adjacent transmission lines.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: March 27, 2012
    Assignee: AU Optronics Corp.
    Inventors: Ya-chieh Chen, Jen-lang Tung
  • Patent number: 8139192
    Abstract: A liquid crystal display device is provided with high fabrication efficiency, which produces small display unevenness and which is capable of high quality display with excellent viewing angle characteristics and high transmittance. A liquid crystal display device of the present invention includes: a first substrate which includes pixel electrodes and an alignment film; a second substrate which includes a common electrode; and a liquid crystal layer interposed between the first substrate and the second substrate. Each of the pixel electrodes includes a plurality of subpixel electrodes electrically separated from one another on an insulating layer. The subpixel electrodes have a recess recessed toward the insulating layer. The subpixel electrodes and a drain line are connected at the recess. Part of the common electrode lying above a whole area of the pixel electrodes is substantially flat.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 20, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuuki Mochizuki, Masaharu Akitomo, Dai Chiba
  • Patent number: 8120729
    Abstract: Disclosed is an optical film that is manufactured by using longitudinal and uniaxial stretching of an unstretched cycloolefin copolymer film and has an in-plane retardation of 100 to 150 nm and a thickness retardation of 0 to ?30 nm at a wavelength of 550 nm, a polarizing plate and a liquid crystal display including the same, and a method of manufacturing the optical film. The method includes longitudinally and uniaxially stretching the unstretched film while a ratio of a width to a length of a stretched portion of the film is controlled.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 21, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jeong-Min Choi, Kyung-Sik Kim, Min-Hee Lee, Jun-Geun Um, Sang-Min Kwak