With Particular Encapsulating Medium Patents (Class 349/89)
  • Patent number: 10197839
    Abstract: Provided is a liquid crystal display (LCD) device. An LCD device includes: a gate line on a substrate; first and second data lines crossing the gate line to respectively define first and second pixel regions; and a plurality of electrodes at each of the first and second pixel regions and including a plurality of bars, the plurality of electrodes including a first and a second outermost electrode, wherein the first data line overlaps an upper portion of the first outermost electrode of the first pixel region, and is spaced apart from a lower portion of the first outermost electrode of the first pixel region, and wherein the second data line is spaced apart from an upper portion of the second outermost electrode of the first pixel region, and overlaps a lower portion of the second outermost electrode of the first pixel region.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: February 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Sang-Wook Lee
  • Patent number: 9874670
    Abstract: Disclosed is an optical compensation film including a supporter, and an optical compensation layer disposed on at least one surface of the supporter and including a polymer of cholesteric liquid crystal molecules having a structure in which a plurality of parallel-arranged liquid crystal molecules are helically arranged, wherein the cholesteric liquid crystal layer has a helical axis that is bent and tilted to the supporter at an angle represented by the following Equation 1; a method of manufacturing the same; and a liquid crystal device (LCD) including the optical compensation film.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Kyung Kim, Myung-Sup Jung
  • Patent number: 9316862
    Abstract: A backlight device illuminates a transmissive liquid crystal panel from a rear surface thereof, and includes light source substrates, a reflecting sheet, a diffusing-guiding plate, and an optical-function-sheet layered body. The substrates have light-emitting elements for illuminating illumination light. The reflecting sheet has the substrates mounted to one surface thereof, has an opening formed in correspondence with the light-emitting elements, allows the light-emitting elements to be exposed at another surface of the reflecting sheet from the opening, and reflects the illumination light from the light-emitting elements by the another surface. The plate faces the another surface side of the sheet at a predetermined interval from the reflecting sheet, and diffuses in a layer thereof the illumination light incident from the reflecting sheet. The layered body is combined to the plate, includes laminated optical function sheets, and guides the illumination light to the panel.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 19, 2016
    Assignee: Sony Corporation
    Inventors: Hirokazu Shibata, Tatsuya Ode
  • Patent number: 9222022
    Abstract: An embodiment provides a polymer-stabilized optical isotropic liquid crystal formulation, including 50 to 99.5 parts by weight of an optical isotropic liquid crystal material; and 0.5 to 50 parts by weight of polymer, wherein the polymer is polymerized by an acrylic monomer containing fluorine groups and an acrylic monomer with a liquid crystal phase and/or an acrylic monomer without a liquid crystal phase.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: December 29, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Pao-Ju Hsieh
  • Patent number: 9146415
    Abstract: An apparatus for manufacturing encapsulated liquid crystals including at least one first flow duct configured to have liquid crystals flow therethrough, at least one second flow duct configured to have encapsulation film materials flow therethrough, a third flow duct configured to have an inflow portion connected to an outflow portion of the first flow duct and an outflow portion of the second flow duct and to have liquid crystal droplets in which the liquid crystals and the encapsulation film materials are mixed flow therethrough, and a curing machine configured to manufacture the encapsulated liquid crystals by curing the liquid crystal droplets.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 29, 2015
    Assignees: Samsung Display Co., Ltd., HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION
    Inventors: Jong-In Baek, Kee-Han Uh, Jae-Hyun Kim, Chul Gyu Jhun, Won-Sang Park, Jae-Ik Lim
  • Patent number: 9019446
    Abstract: A method for manufacturing a liquid crystal display device including first, second, and third pixels for displaying different colors comprises the steps of: forming a first electrode on a substrate; forming a liquid crystal layer including a cholesteric liquid crystal as a mixed material of a non-polymeric liquid crystal compound and a photosensitive chiral additive; irradiating a different intensity of light on the liquid crystal layer positioned on the first pixel, the liquid crystal layer positioned on the second pixel, and the liquid crystal layer positioned on the third pixel; and forming a second electrode facing the first electrode.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: April 28, 2015
    Assignee: NDIS Corporation
    Inventors: Burm-Young Lee, Soon-Bum Kwon, Seo-Kyu Park, Hee-Suck Cho, Ji-Hoon Lee
  • Publication number: 20150070631
    Abstract: A liquid crystal display has liquid crystal containerizing micro-cavities monolithically integrally formed as part of a thin film transistors substrate thereof where mouths of the micro-cavities are sealed shut by material of a capping layer and where the capping layer is patterned to have relatively thicker regions and comparatively thinner or devoid of capping material regions interposed between the thicker regions for thereby providing the capping layer with improved flexibility, the relatively thicker regions being disposed over the mouths of the microcavities.
    Type: Application
    Filed: February 6, 2014
    Publication date: March 12, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Valeriy PRUSHINSKIY, Tae Wook KANG, Min Soo KIM, Len KAPLAN, Nak Cho CHOI
  • Publication number: 20150036079
    Abstract: A display device and a method of manufacturing a display device are capable of preventing an alignment layer from being lumped in a microcavity. The display device includes: a substrate; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor; a roof layer formed on the pixel electrode; microcavities interposed between the pixel electrode and the roof layer; an injection hole formed in the roof layer, the injection hole configured to expose at least a portion of the microcavities; a first valley extended in one direction between the microcavities; an alignment layer formed on the pixel electrode, under the roof layer, and in the first valley; a liquid crystal layer filled in the microcavities; and an encapsulation layer formed on the roof layer, the encapsulation layer configured to cover the injection hole and to seal the microcavities.
    Type: Application
    Filed: December 3, 2013
    Publication date: February 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hae Ju Yun, Soo Jung Lee, Jung Wook Lee, Gwan Ha Kim, Sung Jun Kim, Jung Ha Son
  • Publication number: 20140375931
    Abstract: A display device may include a substrate, a first roof layer formed of a material, a second roof layer formed of the material and spaced from the substrate, and a subpixel electrode disposed between the substrate and the first roof layer. The display device may further include a common electrode member disposed between the subpixel electrode and the first roof layer. The common electrode member may overlap the first roof layer in a first direction without extending beyond the first roof layer in a second direction. The first direction may be perpendicular to a surface of the substrate. The second direction may be parallel to the surface of the substrate. The display device may further include a liquid crystal set disposed between the subpixel electrode and the common electrode member.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 25, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Won Tae KIM, You Young Jin, Kyung Tae CHAE, Don Chan CHO, Seok-Joon HONG
  • Patent number: 8908127
    Abstract: A display apparatus includes a backlight unit generating light and a display substrate displaying an image using the light. The display substrate includes a substrate, a first electrode, a light blocking layer, a thin film transistor, a second electrode, a liquid crystal and a color filter. The substrate includes a pixel area and a non-pixel area, the first electrode is in the pixel area, and the light blocking layer is in the non-pixel area to block the light. The thin film transistor is on the light blocking layer and electrically connected to the first electrode. The second electrode faces the first electrode, and a cavity is defined therebetween. The liquid crystal is in the cavity, the color filter is on the second electrode, and the color filter is closer to the backlight unit than the substrate.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youyoung Jin, Sungkyun Park, Hyung-Il Jeon, Ki-Hyun Cho, Seok-Joon Hong
  • Publication number: 20140354921
    Abstract: A display device may include a first subpixel electrode; a first roof layer; a first liquid crystal layer disposed between the first subpixel electrode and the first roof layer; and a first support member overlapping a first end portion of the first roof layer in a first direction. The display device may further include a second subpixel electrode immediately neighboring the first subpixel electrode; a second roof layer; a second liquid crystal layer disposed between the second subpixel electrode and the second roof layer; and a second support member overlapping a first end portion of the second roof layer in the first direction. The first end portion of the first roof layer and the first end portion of the second roof layer may be disposed between a second end portion of the first roof layer and a second end portion of the second roof layer.
    Type: Application
    Filed: January 9, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seon Uk LEE, Sung Hwan WON, Dae Ho LEE, Sun Hwa LEE, Kwang-Chul JUNG
  • Patent number: 8896804
    Abstract: The present invention provides a method for termination detection of optical alignment of liquid crystal material, which includes: under influence of electrical field, irradiating light on liquid crystal material so that reactive monomers in liquid crystal material polymerizing; detecting a residual amount or a thickness change value of the reactive monomers in liquid crystal material to determine detected residual amount of reactive monomers or thickness change value in liquid crystal box reaching a default value; when reaching default value, terminating optical alignment of liquid crystal material. The present invention also provides a device for termination detection of optical alignment of liquid crystal material. Through detecting termination of optical alignment, the present invention realizes automatic control of irradiation time in optical alignment to reduce the effect of individual glass substrate variation on optical alignment to avoid affecting reaction process of alignment on reactive monomer.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: November 25, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Liang Xu
  • Patent number: 8872860
    Abstract: A method for driving a display device includes cumulatively applying a reset pulse of a predetermined level to a first electrode and applying a common voltage to a second electrode opposed to the first electrode to form an initial state of a plurality of cholesteric liquid crystal capsules included in a liquid crystal layer between the first electrode and the second electrode. The method also includes cumulatively applying a data pulse of a predetermined level to the first electrode to display a grayscale.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Won-Sang Park, Jong-In Baek, Gee-Bum Kim, Yong-Seok Yeo
  • Patent number: 8817222
    Abstract: An optical element and a stereoscopic image display device are provided. The optical element is a light-dividing element, for example an element that can divide incident light into at least two kinds of light having different polarized states. Therefore, the optical element can be used to realize a stereoscopic image.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: August 26, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Eun Mi Seo, Sin Young Kim, Kyun Il Rah, Moon Soo Park, Seung Hun Chae
  • Patent number: 8743318
    Abstract: A display device may be constructed with a first substrate having a first electrode and a second electrode, a second substrate formed on the first substrate and facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The liquid crystal layer may be constructed with a polymer-stabilized liquid crystal (PSLC), and a size of domains of the PSLC is 200 nm or less.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 3, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-In Baek, Won-Sang Park, Jae-Hyun Kim, Jae-Ik Lim
  • Patent number: 8692969
    Abstract: The color filter may include a pixel unit having a plurality of sub-pixels of different colors, wherein the plurality of sub-pixels respectively include flat plate metal layers and a plurality of color PDLC layers on the flat plate metal layers, and the plurality of color PDLC layers each include a polymer, a plurality of liquid crystal drops dispersed in the polymer, and a plurality of color display materials mixed in the liquid crystal drops.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: April 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-eun Jang, Gae-hwang Lee, Kyu-young Hwang, Jae-eun Jung
  • Patent number: 8659722
    Abstract: There are provided an optical device including a dimming cell capable of performing low illumination imaging without varying an optical path length, and an imaging device using the optical device. The optical device includes a cell having a containing layer between a first transparent substrate disposed on a light incident side and a second transparent substrate which is disposed on a light emitting side and faces the first transparent substrate, a variable transmittance section provided in a first region of the containing layer and allowing light transmittance to be varied within a predetermined range, and a fixed transmittance section provided in a second region different from the first region as seen from the light incident side and having a light transmittance higher than that of the variable transmittance section.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: February 25, 2014
    Assignee: Sony Corporation
    Inventor: Keita Kaifu
  • Patent number: 8629827
    Abstract: A display device includes a display panel, a data driving part and a gate driving part. The display panel includes a first pixel row. The first pixel row includes a first pixel connected to an (n+1)-th gate line and an (m+1)-th data line (where ‘n’ and ‘m’ are natural numbers), and a second pixel connected to an n-th gate line and an (m+2)-th data line. The data driving part applies a data voltage having a first polarity with respect to a reference voltage to the (m+1)-th data line, and applies a data voltage having a second polarity with respect to the reference voltage to the (m+2)-th data line. The gate driving part sequentially applies a gate signal to the n-th gate line and the (n+1)-th gate line.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: January 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hoon Lee, Yong-Soon Lee, Young-Su Kim, Yu-Han Bae
  • Patent number: 8625054
    Abstract: According to one embodiment, a display device includes a light source, a light guide, a light extraction unit, and a drive circuit. The light guide is configured to guide light emitted by the light source from one end side of the light guide toward one other end side of the light guide. The light extraction unit is provided on a surface of the light guide, and includes a liquid crystal dispersion layer, a first electrode, and a second electrode. The liquid crystal dispersion layer includes liquid crystal droplets, and the first and second electrodes are configured to cause an electric field to occur in the liquid crystal dispersion layer. The drive circuit is configured to apply a voltage between the electrodes. Liquid crystal molecules included in the liquid crystal droplets are configured to have an orientation parallel to the surface of the light guide in the electric field.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 7, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Nakai, Tsuyoshi Hioki
  • Patent number: 8581860
    Abstract: A touch panel and a touch-sensitive display device capable of providing three-dimensional contact detection are provided. The touch panel includes a first conductive layer, a second conductive layer, and an insulating layer between the first and second conductive layers. The insulating layer includes a polymer dispersed liquid crystal (PDLC) film.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 12, 2013
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventor: Kai Meng
  • Patent number: 8570460
    Abstract: A liquid crystalline optical medium includes polymer stabilized liquid crystal material. The polymer stabilized liquid crystal material includes a short pitch cholesteric liquid crystal material stabilized by a polymer material. The effective phase retardation of the polarization independent liquid crystal optical medium can be controlled by external (for example, electric and magnetic) fields.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 29, 2013
    Assignee: Kent State University
    Inventors: Mingxia Gu, Liubov Kreminska, Andrii Golovin, Oleg D. Lavrentovich
  • Patent number: 8570461
    Abstract: Provided are a polymer-dispersed liquid crystal (PDLC) display device and a method of manufacturing the same. The PDLC display device may include a PDLC layer between facing substrates, wherein the PDLC layer has at least two regions including polymers having different concentrations.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gae-hwang Lee, Jae-eun Jang, Jae-eun Jung, Kyu-young Hwang
  • Publication number: 20130222740
    Abstract: The present invention provides a liquid crystal display device that includes a horizontal alignment film, stabilizes liquid crystal alignment by the PSA technique, can suppress the increase in power consumption, reduction in contrast, and image sticking in display, and has long-term reliability. The present invention is a liquid crystal display device including a pair of substrates, a liquid crystal layer interposed between the pair of substrates, a horizontal alignment film formed on at least one of the pair of substrates, and a polymer layer which is formed on the horizontal alignment film and controls the alignment of adjacent liquid crystal molecules, wherein the polymer layer is formed by the polymerization of at least one or more kinds of monomers added into the liquid crystal layer, and at least one of the one or more kinds of monomers is polymerized by itself functioning as a polymerization initiator by being irradiated with light.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 29, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Koichi Miyachi, Isamu Miyake
  • Patent number: 8508695
    Abstract: A polymer-dispersed liquid crystal system has a continuous polymer structure having defined therein a plurality of discrete bodies of liquid crystal material. The bodies of liquid crystal material exhibit a polydomain operating state in which the liquid crystal material within each body is arranged in multiple domains, each domain being defined by a quantity of liquid crystal material whose molecules have a substantially common identifiable alignment in at least one axis, wherein the resolved alignments of neighboring domains diverge substantially from one another and are stable over time.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: August 13, 2013
    Assignee: Vlyte Innovations, Ltd
    Inventor: Donal O'Keeffe
  • Patent number: 8482682
    Abstract: A display system includes: a screen in which, in an area on which invisible light is incident, a scattering state where visible light is scattered and a transmission state where visible light is transmitted are switched; an image projection system to project an image of the visible light onto the screen; and an invisible light projection system to project the invisible light onto the screen and to cause an area of the screen onto which a desired portion of the image is projected to have the scattering state.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 9, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Taisuke Yamauchi
  • Publication number: 20120320312
    Abstract: An extendable display device including an extendable substrate, and microcapsule display film. The microcapsule display film is located on the extendable substrate. The microcapsule display film includes a microcapsule display material and a plasticizer.
    Type: Application
    Filed: January 11, 2012
    Publication date: December 20, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ming-Huan Yang, Wen-Chun Chen, Chen-Chu Tsai
  • 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
  • Patent number: 8310626
    Abstract: In the production method of the present invention, an emulsion including a copolymer with a glass transition temperature (Tg) of ?50 to 20° C. is obtained by the emulsion polymerization of a monomer group including a monomer A that is a (meth)acrylic acid alkyl ester (where the alkyl group is an open chain group with 1 to 20 carbon atoms or a cyclic group with 5 to 20 carbon atoms) as the main monomer and a monomer B having a carbon-carbon double bond and a nonionic hydrophilic group such as a polyoxyalkylene group, an amide group, and a hydroxyl group. Liquid crystals are dispersed in this emulsion, which is applied onto a conductive film-coated substrate. Another conductive film-coated substrate is laminated thereto, and thus a liquid crystal light control device is obtained. A monomer C having a carboxyl group and/or an amino group and a carbon-carbon double bond may be used in combination with a crosslinking agent so that a crosslinked structure is introduced into the copolymer.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: November 13, 2012
    Assignees: Nippon Sheet Glass Company, Limited, Daido Chemical Corporation
    Inventors: Masaatsu Kido, Mitsuhiro Kawazu, Yuichi Yano, Daisuke Shiraishi, Hitoshi Shinike
  • Publication number: 20120050650
    Abstract: A polymer film without cholesteric liquid crystal (LC) is characterized in that the polymer film has photonic crystal structure. The polymer film is an innovative product in the feature of having photonic crystal structure without containing cholesteric LC. In addition, the polymer film can further contain fluid which is filled in the film body of the polymer film. By filling any of various fluids in the film body, the light of different wavelengths can be reflected by the polymer film based on Bragg reflection, so that the applications of the polymer film can be broadened. Especially when the fluid is anisotropic liquid, the polymer film can be applied to electro-controlled reflective display modules. In addition, stacking the imprinted polymer films manufactured from left-handed and right-handed cholesteric liquid crystals can improve the brightness of reflected light.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 1, 2012
    Inventor: Jui-Hsiang LIU
  • Patent number: 8125591
    Abstract: The present invention relates to a method of forming an array of polymer dispersed liquid crystal cells, to an array formed by such method and to uses of such array.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 28, 2012
    Assignee: Sony Deutschland GmbH
    Inventors: Akira Masutani, Bettina Schueller, Anthony Roberts, Akio Yasuda
  • Patent number: 8054413
    Abstract: A new light modulating material using interconnected unidirectionally oriented microdomains of a liquid crystal, dispersed in a stressed polymer structure, is provided. The light modulating material is prepared by dissolving the liquid crystal in an uncured monomer and then curing the monomer so that the polymer forms a well-developed interpenetrating structure of polymer chains or sheets that is uniformly dispersed through the film. When the film is subjected to stress deformation the liquid crystal undergoes a change in its unidirectional orientation. The concentration of the polymer is high enough to hold the shear stress, but is as low as possible to provide the highest switch of the phase retardation when an electric field is applied. The new materials are optically transparent and provide phase modulation of the incident light opposed to the low driving voltage, linear electro-optical response, and absence of hysteresis.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: November 8, 2011
    Assignee: Kent State University
    Inventors: John L. West, Anatoliy Glushchenko, Guoqiang Zhang
  • Patent number: 8023071
    Abstract: This invention relates to a liquid crystal display with improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity, and methods for its manufacture. The liquid crystal display of the present invention comprises microcups as display cells, wherein the microcups are formed from a microcup composition and filled with a liquid crystal composition.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: September 20, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Scott C-J Tseng, Ying-Syi Li, HongMei Zang
  • Patent number: 8009248
    Abstract: A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: August 30, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuhiko Nakai, Mitsuaki Hirata, Mitsuhiro Shigeta, Naoshi Yamada, Toshihide Tsubata, Shigeaki Mizushima, Yoshiki Takata
  • Patent number: 7959296
    Abstract: A multiple path stereoscopic projection system is disclosed. The system comprises a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path and a secondary path, a reflector in the secondary path, and a polarization modulator or polarization modulator arrangement positioned in the primary path and configured to modulate the primary path of light energy. A polarization modulator may be included within the secondary path, a retarder may be used, and optional devices that may be successfully employed in the system include elements to substantially optically superimpose light energy transmission between paths and cleanup polarizers. The projection system can enhance the brightness of stereoscopic images perceived by a viewer. Static polarizer dual projection implementations free of polarization modulators are also provided.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: June 14, 2011
    Assignee: RealD Inc.
    Inventors: Matt Cowan, Lenny Lipton, Jerry Carollo
  • Patent number: 7939143
    Abstract: A liquid crystal-containing composition includes a cholesteric liquid crystal and a microcapsule wall that encapsulates the cholesteric liquid crystal, the microcapsule wall includes at least one material selected from polyurethane and polyurea, and the content of the microcapsule wall with respect to 100 parts by weight of the cholesteric liquid crystal is from about 0.1 parts to about 11 parts by weight.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: May 10, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chikara Manabe, Naoki Hiji, Takeo Kakinuma, Tadayoshi Ozaki
  • Patent number: 7920245
    Abstract: A light-modulating material includes a transparent front surface layer, an intermediate layer including a liquid crystal forming an isotropic phase and a transparent back surface layer, laminated in this order.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: April 5, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroaki Miura, Hidekazu Takahashi
  • Patent number: 7898639
    Abstract: There are provided a polymer dispersed liquid crystal (PDLC) display not using a backlight unit and a method of fabricating the same. The PDLC display comprises a rear substrate over which a thin film transistor (TFT), a first electrode, and a second electrode are formed, a front substrate apart from the rear substrate and having a first black matrix formed thereon corresponding to a region where the TFT is formed, a PDLC layer disposed below the first black matrix and formed between the front and rear substrates, a light source formed on one side of the PDLC layer and configured to provide light to the side of the PDLC layer, and a first reflection plate formed on the other side of the PDLC layer and configured to reflect light incident via the PDLC layer.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: March 1, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jinmog Kim, Hoansu Shim
  • Publication number: 20110043728
    Abstract: An aspect of the invention provides a method of recording an image (28) comprising: providing a display cell (4) having a first cell wall (6) and a second cell wall (8) opposed to the first cell wall, the cell walls enclosing a layer of a display medium (10) comprising a liquid crystal material (12) having finely-divided pigment particles (14) dispersed therein, each cell wall (6,8) including an electrode (16,18) for applying an electric field across the display medium (10); applying via the electrodes (16,18) a first electric field of a first polarity and of sufficient magnitude and duration to cause the particles (14) to migrate and accumulate at the first cell wall (6); illuminating at least some of the particles (14) with an image to be recorded; and applying via the electrodes (16,18) a second electric field of opposite polarity to the first polarity and of sufficient magnitude and duration to cause some but not all particles (14) to migrate from the first cell wall (6) so as to produce a recorded ima
    Type: Application
    Filed: August 30, 2010
    Publication date: February 24, 2011
    Inventor: David Sikharulidze
  • Publication number: 20110043729
    Abstract: A polymerizable compound in a liquid crystal composition is polymerized in a state that liquid crystal molecules present in a gap between a pixel electrode and at least either one of signal electrodes and scanning electrodes are tilted in a direction from the at least either one of the signal electrodes and the scanning electrodes toward the pixel electrode. Preferably, the amount of the polymerizable compound remaining in the liquid crystal phase after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal. In a seal section surrounding the liquid crystal layer, a second seal wall is preferably provided at a position opposite to the liquid crystal injection inlet in the non-display section.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 24, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Nakanishi, Yuichi Inoue, Kazutaka Hanaoka, Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro
  • Patent number: 7864280
    Abstract: It is to provide a liquid crystal display device capable of readily obtaining bend alignment across an entire liquid crystal display panel of the liquid crystal display device, with obtaining brightness while obtaining a high speed responsiveness, a feature of an OCB mode, as well as without increasing a load on an activating driver. The liquid crystal display device is arranged such that: a liquid crystal molecule in a liquid crystal layer sandwiched between a pair of substrates facing each other has a pretilt angle of not less 18° and not more than 36°; a product ?nd of a refractive index anisotropy ?n and a thickness d of the liquid crystal layer is not less than 850 nm and not more than 1170 nm; and a lateral electric field generating structure for applying an electric field parallel to the substrates and bend-aligning the liquid crystal molecules is provided in a region corresponding to a pixel.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: January 4, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kazutaka Hanaoka
  • Patent number: 7852547
    Abstract: An active matrix type electro-wetting display panel includes an array substrate that includes the switching devices and pixel electrodes, an opposite substrate having a common electrode and a conductive colored liquid filled in the spaces corresponding to the pixel electrodes to control light transmissivity according to the potential differences between the pixel electrodes and the common electrode.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: December 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jun-Hyung Kim
  • Patent number: 7843530
    Abstract: A liquid crystal-containing composition includes a first cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 600 nm to 800 nm and encapsulated in a microcapsule and a second cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 400 nm to 500 nm as the only liquid crystals, and the content of the second cholesteric liquid crystal with respect to the entire cholesteric liquid crystal content is from about 5 weight % to about 40 weight %.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: November 30, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Naoki Hiji, Takeo Kakinuma, Chikara Manabe, Tadayoshi Ozaki
  • Patent number: 7833589
    Abstract: A liquid crystal-containing composition and a liquid crystal display device including the same, the liquid crystal-containing composition including a cholesteric liquid crystal and microcapsules containing the cholesteric liquid crystal, and having a wall component comprising at least one selected from the group consisting of polyurethane and polyurea, the wall component further including a first isocyanurate component having a cyclo ring structure and a second isocyanate component other than the first isocyanurate component.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: November 16, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chikara Manabe, Naoki Hiji, Takeo Kakinuma, Tadayoshi Ozaki
  • Publication number: 20100245724
    Abstract: An object is to provide a highly reliable liquid crystal display device which includes a liquid crystal layer exhibiting a more stable blue phase. Another object is to provide a method for manufacturing a liquid crystal display device with high yield. Polymer stabilization treatment is performed as follows: a photocurable resin is added to a liquid crystal material exhibiting a blue phase, and the photocurable resin is selectively polymerized by scanning a liquid crystal layer provided between a first substrate and a second substrate with light in a certain direction. Thus, a first region where the light irradiation treatment is performed and a second region where the light irradiation treatment is not performed are formed in the liquid crystal layer. Since polymerization of the photocurable resin proceeds in the first region, the polymerization degree of the photocurable resin in the first region is higher than that in the second region.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 30, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takeshi NISHI, Tetsuji ISHITANI, Daisuke KUBOTA
  • Publication number: 20100208172
    Abstract: A polymer dispersed display apparatus includes a polymer layer, and a plurality of liquid crystal drops dispersed in the polymer layer. Quantum dots emitting a plurality of colors of light are mixed in the liquid crystal drops. Therefore, the polymer dispersed display apparatus displays colors without the need for a color filter. Thus, the polymer dispersed display apparatus need not include a polarization plate and a color filter, so that a light usage efficiency of the polymer dispersed display apparatus increases.
    Type: Application
    Filed: December 17, 2009
    Publication date: August 19, 2010
    Inventors: Jae-eun Jang, Seung-nam Cha, Jae-eun Jung, Yong-wan Jin
  • Publication number: 20100195025
    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: Application
    Filed: July 8, 2008
    Publication date: August 5, 2010
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten forschung e.V.
    Inventors: Monika Bauer, Frank Kuschel, Joachim Mueller
  • Patent number: 7764337
    Abstract: It is an object of the present invention to improve deterioration of display performance in a liquid crystal display device, especially to obtain rapid response with the alignment of a liquid crystal maintained. According to one feature of the present invention, a liquid crystal display device comprises a pair of substrates where an electrode is formed in one side of each substrate; liquid crystals; and a ferroelectric, wherein the pair of substrates is disposed so that the electrodes oppose to each other, wherein the liquid crystal is sandwiched between the pair of substrates, wherein the ferroelectric includes an organic material and wherein the ferroelectric particles are dispersed in the liquid crystal.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: July 27, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventor: Takeshi Nishi
  • Publication number: 20100165260
    Abstract: A liquid crystal-containing composition includes a first cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 600 nm to 800 nm and encapsulated in a microcapsule and a second cholesteric liquid crystal having a peak wavelength of selective reflection in the range of from 400 nm to 500 nm as the only liquid crystals, and the content of the second cholesteric liquid crystal with respect to the entire cholesteric liquid crystal content is from about 5 weight % to about 40 weight %.
    Type: Application
    Filed: May 21, 2009
    Publication date: July 1, 2010
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Naoki HIJI, Takeo KAKINUMA, Chikara MANABE, Tadayoshi OZAKI
  • Patent number: 7733442
    Abstract: A display device includes a first substrate, a second substrate, and microcapsules sandwiched between the first substrate and the second substrate, the microcapsules constituting a display area, the microcapsules encapsulating a display material whose optical properties change in response to electrical stimulation. A conductive material for conducting between the substrates is provided between the first substrate and the second substrate to constitute a vertically conducting portion. The thickness of the conductive material is set such that the distance between the first substrate and the second substrate at the vertically conducting portion is larger than the distance between the first substrate and the second substrate in the display area.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: June 8, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Masami Uchida
  • 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