Compensator Or Retarder (i.e., Not Using Liquid Crystal Cell) Patents (Class 349/117)
  • Publication number: 20150022764
    Abstract: There is provided a phase difference film which includes a, an intermediate layer, and a phase difference layer to which an alignment state of a liquid crystal material is fixed in this order, in which the substrate contains cellulose acylate in which an average substitution degree DS of an acyl group satisfies 2.0<DS<2.6, specific polycondensation ester, or specific sugar ester, the intermediate layer contains a polyvinyl alcohol resin or an acrylic resin having a polar group, and the phase difference layer contains a liquid crystal compound which is homeotropically aligned and has specific optical characteristics.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Jun TAKEDA, Yuki MATSUDA, Nobuhiko ICHIHARA
  • Patent number: 8936840
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Patent number: 8937696
    Abstract: A cellulose acylate film containing a cellulose acylate and a sugar ester compound having from 1 to 12 pyranose structures or furanose structures in which at least one hydroxyl group is esterified, the film satisfying 40 nm?Re(550)?60 nm and 100 nm?Rth(550)?140 nm, and having a dimensional change of ?0.5 to 0.5% and an internal haze of at most 0.1%.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 20, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoshiaki Hisakado, Jun Takeda, Isao Fujiwara, Masato Nagura, Nobutaka Fukagawa
  • Patent number: 8928824
    Abstract: A polarizer film is used for converting polarized light from a backlight module into light along a first direction. Multiple electrodes are disposed on a transparent substrate. Each electrode extends along a second direction different from the first direction. An alignment of liquid crystal molecules varies according to voltage applied on the electrodes. A retard unit is disposed between the transparent substrate and the polarizer film and used for converting the polarized light into light along a third direction different from the first and second direction. A polarization direction of the emitted light is perpendicular to an alignment of an electrode layer. In this way, an optical axis of the liquid crystal molecules matches the polarization direction of the light from the retard unit when voltage is not applied. So, the maximal lens power is attained with decreasing the cost resulted from the decreased thickness of the liquid crystal layer.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 6, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chih-Wen Chen, Chia-Chiang Hsiao
  • Patent number: 8928843
    Abstract: An object of the present invention is to provide an optical unit and a backlight unit which can markedly enhance utilization efficiency of rays of light and dramatically increase luminance, and which are suited for immediate beneath type liquid crystal display modules and the like. The optical unit of the present invention is a rectangular layered structural member having a reflection polarizing plate, an optical sheet superposed on the back face side of the reflection polarizing plate, and a transparent media layer filled between the reflection polarizing plate and the optical sheet. This optical sheet includes a resin substrate film having an optical anisotropy, and the absolute value of the angle of the crystal orientation of the substrate film with respect to the transmission axial orientation of the reflection polarizing plate is ?/8 or greater and 3?/8 or less. The retardation value of the substrate film is preferably 70 nm or greater and 320 nm or less.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: January 6, 2015
    Assignee: Keiwa Inc.
    Inventor: Kenichi Harada
  • Patent number: 8928825
    Abstract: The invention relates to a phase-modulating light modulator and to a method for ensuring a minimal amplitude modulation in phase-modulating light modulators, wherein the phase-modulating light modulator comprises an optically active layer with at least one optically active volume region and with boundary surfaces, wherein the optically active layer is assigned at least one transparent compensation volume region which comprises at least one birefringent material with fixed refractive index ellipsoids, and has a polarizer arranged on the output side. An object is to achieve a reduced angle-dependence of the averaged amplitude modulation in the observation angle region. The object is achieved by optimizing the orientation with respect to one another of the refractive index ellipsoids of the optically active layer and of the compensation layers in a simulative manner.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: January 6, 2015
    Assignee: Seereal Technologies S.A.
    Inventor: Norbert Leister
  • Patent number: 8922740
    Abstract: A light efficiency enhancing optical device is disclosed, including a cholesteric liquid crystal film, a quarter wave plate disposed on a light out-going surface of the cholesteric liquid crystal film and an optical compensating film disposed on a light out-going surface of the quarter wave plate, wherein the optical compensating film includes a positive birefringence C-plate, and a composite optical compensating film with combination of the optical compensating film and the quarter wave plate has in-plane phase retardation R0 of 100 nm˜170 nm and out-of-plane phase retardation Rth of 0 nm˜400 nm.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: December 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Ping Hsieh, Hui-Lung Kuo, Jui-Fa Chang, Mei-Chih Peng, Yi-Chang Du
  • Patent number: 8920889
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Publication number: 20140377528
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10??(1); ?25?Rth(550)?25??(2); and |I|+|II|+|III|+|IV|>0.5(nm)??(3), with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Hajime NAKAYAMA, Hirofumi TOYAMA, Yuta TAKAHASHI
  • Patent number: 8913217
    Abstract: The present invention provides a liquid crystal display device that can achieve sufficient front contrast ratio and front white brightness at the same time. The present invention is a liquid crystal display device including a front polarizing plate, a liquid crystal cell, a back polarizing plate, and an optical element having polarization characteristics, which are arranged in the stated order, wherein the back polarizing plate has a lower contrast than the front polarizing plate, and there is substantially no air layer between the back polarizing plate and the optical element having polarization characteristics.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 16, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Hasegawa, Akira Sakai
  • Patent number: 8911837
    Abstract: The retardation film of the present invention contains a thermoplastic polymer having at least a side chain component (A) oriented in a direction substantially orthogonal to a slow axis, and the absorption edge wavelength (?cut-off) of the side chain component (A) is 330 nm or more, and an in-plane retardation value (Re[450]) at a wavelength of 450 nm is smaller than that (Re[650]) at a wavelength of 650 nm. In the above-mentioned retardation film, the difference (?Re650-450=Re[650]?Re[450]) between the in-plane retardation value (Re[650]) at a wavelength of 650 nm and the in-plane retardation value (Re[450]) at a wavelength of 450 nm is preferably 10 nm or more. The retardation film of the present invention exhibits optical characteristics in which the in-plane birefringence is large and the difference between a retardation value on the short wavelength side and a retardation value on the long wavelength side is large.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: December 16, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Yutaka Ohmori, Takahisa Konishi, Hisae Sugihara, Miyuki Kurogi, Toshiyuki Iida
  • Patent number: 8913216
    Abstract: Provided are diffuser, method of manufacturing same, and liquid crystal display device employing the diffuser. Liquid crystal display device includes: backlight unit; liquid crystal panel on which image is formed by using light emitted by backlight unit, and comprising: color filter comprising plurality of pixels each of which comprises plurality of subpixels that are alternately arranged and transmit light in different wavelength bands; and liquid crystal layer whose transmittance is adjusted under electrical control; and diffuser disposed on a top surface or a bottom surface of the liquid crystal panel and comprising diffusing areas and transparent areas which alternate with each other at intervals corresponding to the width of the subpixels, wherein the liquid crystal layer comprises liquid crystal areas corresponding to the diffusing areas and liquid crystal areas corresponding to the transparent areas and the transmittances of the liquid crystal areas are adjusted according to the subpixels.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: December 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyumin Choe, Seongmo Hwang, Moongyu Lee
  • Patent number: 8913203
    Abstract: A display module includes a transparent substrate, a black matrix layer, several light-shielding elements and a phase retardation film. The transparent substrate includes left-eye pixel regions and right-eye pixel regions for respectively displaying left-eye images and right-eye images. Each left-eye pixel region is adjacent to each right-eye pixel region. The black matrix layer is disposed on one side of the transparent substrate and corresponds to each boundary between the left-eye and right-eye pixel regions. The light-shielding elements are disposed on the other side of the transparent substrate and respectively correspond to the boundaries between the left-eye and right-eye pixel regions. The phase retardation film is disposed on the other side of the transparent substrate, and has first-phase retardation regions and second-phase retardation regions with difference phases.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: December 16, 2014
    Assignees: Innolux Corporation, Innocom Technology (Shenzhen) Co., Ltd.
    Inventor: Yu-Sheng Chen
  • Publication number: 20140362332
    Abstract: A birefringent device, which is configured to be mounted in an optical path of an optical system, has an effective area in a pupil plane. The birefringent device affects different polarization states differently and position-dependently. The birefringent device realizes a first pupil function assigned to a first polarization state and a second different pupil function assigned to a second polarization state. The pupil functions may be optimized to achieve various specific optical properties like extended depth of field.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Applicant: Sony Corporation
    Inventors: Daniel Buehler, Markus Kamm, Marco Hering
  • Publication number: 20140362331
    Abstract: A SWIR hyperspectral imaging filter has serial stages along an optical signal path with angularly distributed birefringent retarders and polarizers. The retarders can include active retarders such as tunable liquid crystal birefringent elements, passive retarders such as fixed retarders, and/or combinations thereof. Distinctly different periodic transmission spectra are provided by different filter stages, each having multiple retarders, in particular with some stages having broad bandpass peaks at wide spectral spacing and other stages have very narrow closely spaced peaks. The respective spectra include at least one tunably selectable band at which the transmission spectra of the filter stages coincide, whereby the salutary narrow bandpass and wide spectral spacing ranges of different stages apply together, resulting in a high finesse wavelength filter suitable for spectral imaging.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 11, 2014
    Inventors: Lei Shi, George Ventouris, Thomas C. Volgt
  • Patent number: 8906475
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 9, 2014
    Assignee: Fujifilm Corporation
    Inventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
  • Publication number: 20140347613
    Abstract: A retardation film including: a first optical anisotropic layer including a polymer material; and a second optical anisotropic layer including a liquid crystal material, in which the first optical anisotropic layer has refractive indices which satisfy the following inequation: nz1?nx1>ny1, the second optical anisotropic layer has refractive indices which satisfy the following inequation: nx2>ny2?nz2, a fast axis of the first optical anisotropic layer and a slow axis of the second optical anisotropic layer form a predetermined angle such that refractive indices of the retardation film satisfy the following inequation: 0<(nx0?nz0)/(nx0?ny0)<1, and in-plane retardation values (Re0) of the retardation film respectively at a wavelength of about 450 nanometers, 550 nanometers and 650 nanometers satisfy the following inequation: Re0 (450 nm)<Re0 (550 nm)<Re0 (650 nm).
    Type: Application
    Filed: January 14, 2014
    Publication date: November 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung Jun KIM, Ji-Hoon LEE, Myung Sup JUNG, Won-Cheol JUNG
  • Patent number: 8895118
    Abstract: The present invention relates generally to the field of organic chemistry and particularly to the nematic lyotropic liquid crystal solution and negative dispersion retardation plate for application in 3D liquid crystal displays. The negative dispersion retardation plate comprises a substrate, and at least one optically anisotropic retardation layer comprising a multi-component guest-host composition coated onto the substrate.
    Type: Grant
    Filed: November 6, 2011
    Date of Patent: November 25, 2014
    Assignee: Crysoptix K.K.
    Inventors: Arthur Geivandov, Pavel Ivan Lazarev, Serguei Palto
  • Patent number: 8896774
    Abstract: To provide an optical film which may be used as a ?/4 plate and may provide a display device which has specific optical characteristics, may be manufactured with high productivity and has an excellent 3D-display performance. To provide a 3D-display device having a physical properties having excellent antireflective property and light fastness with high productivity. An optical film having at least one optically anisotropic layer, wherein an in-plane retardation. Re at an arbitrary wavelength in a visible light region is 80 nm to 201 nm, an Nz value represented by the following equation is 0.1 to 0.9, and when the in-plane retardations at wavelengths of 450 nm, 550 nm and 650 nm are referred to as Re450, Re550 and Re650, respectively, Re450/Re550 is 1.18 or less and Re650/Re550 is 0.93 or more. Nz=0.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 25, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Yuta Takahashi, Hisato Nagase
  • Patent number: 8896789
    Abstract: Disclosed is an optical film in which a minute interference unevenness is reduced. The optical film comprises a transparent film having a thickness of 10 ?m to 150 ?m, and a first layer and a second layer, in this order, on the transparent film, wherein values of in-plain mean refractive indices thereof satisfy the formula: the second layer>the first layer>the transparent film; the difference in in-plane mean refractive indices between the first layer and the second layer and the difference in in-plane mean refractive indices between the first layer and the transparent film are each 0.02 or more; and the optical thickness D of the first layer satisfies the formula: 270×N?150?75 nm?D?270×N?150+75 nm (1?N?8 where N is a natural number).
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Fujifilm Corporation
    Inventors: Humitake Mitobe, Yuusuke Furuki
  • Patent number: 8889236
    Abstract: An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 18, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Yuta Takahashi
  • Patent number: 8885121
    Abstract: A novel document security and authentication system is based on a transparent element on which more than one image appears depending on the manner in which the element is viewed. The system is based on cells or sheets of liquid crystal doped with one or more dichroic dyes. The images obtained with the aid of a polarizer can be printed onto a very thin (?m or 10 tens of a ?m) sheet of polymer material; the images may also be in greyscale or in color. There is no need to apply electrical signals during the production or use thereof.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 11, 2014
    Assignee: Universidad Politecnica de Madrid
    Inventors: Xabier Quintana Arregui, Jose Manuel Oton Sanchez, Morten Andreas Geday, Carlos Carrasco Vela
  • Patent number: 8883272
    Abstract: Provided are a cellulose acylate film used for optical compensation and additives used therefor and, more particularly, is a cellulose acylate film with mechanical physical properties, in particular, very improved modulus affecting film durability.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 11, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Won Seok Jang, Yong Gyun Cho, Won Yeob Kim, Jun Tae Choi, Myoung Lae Kim, Hyuk Jun Kim, Ki Yup Kim, Sung Ho Son
  • Patent number: 8885123
    Abstract: The present invention provides a 3D display apparatus which comprises a display and a liquid crystal cell module. The liquid crystal cell module retards a phase of the light emitted from the display and corresponding to a display frame for forming a left-handed circularly polarized light and a right-handed circularly polarized light. The present invention further provides a method for manufacturing the 3D display apparatus. The present invention can display 3D images without losing image information. The response time of a ferroelectric liquid crystal and an anti-ferroelectric liquid crystal of the present invention is faster, and thus the effect on the luminance of the display is less.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 11, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Hong-Ji Huang
  • Patent number: 8879030
    Abstract: A transmitting liquid crystal display apparatus includes a liquid crystal panel including a pair of substrates, a pair of polarizers arranged adjacent to the pair of substrates respectively, a liquid crystal layer held between the pair of substrates, and electrodes arranged on at least one of the pair of substrates and serving to apply an electric field to the liquid crystal layer; and a light source unit arranged external to the pair of substrates, in which each of the pair of polarizers has an absorption axis along with an extraordinary wave axis of molecules constituting the polarizers. In this apparatus, a dye layer having a disc-form molecular structure is arranged between the polarizer and the substrate, or adjacent to the polarizer in proximity to the viewer. The dye layer has a transmission axis along with the extraordinary wave axis of the disc-form molecular structure.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: November 4, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yuka Utsumi, Katsumi Kondo, Yasushi Tomioka
  • Patent number: 8877304
    Abstract: It is an object of the present invention to provide an optical film which has reverse chromatic dispersibility that its retardation becomes smaller as the wavelength becomes shorter and a low photoelastic constant.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: November 4, 2014
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Tetsuya Motoyoshi, Masatoshi Ando, Makoto Ueno, Akiko Nishijima
  • Patent number: 8871314
    Abstract: Provided is a polymer film containing at least one of a compound represented by formula (1) of hydrates, solvates, or salts thereof. Y is a methine group or nitrogen atom. Qa, Qb, and Qc are a single bond or a divalent linking group. Ra, Rb, and Rc, are hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, cyano group, halogen group, or heterocyclic group. X2 is a single bond or a divalent linking group. X1 is a single bond or a predetermined divalent linking group. R1 and R2 are a hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 28, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Aiko Yamamoto, Satoshi Tanaka, Teruki Niori, Masato Nagura, Masaki Noro, Aiko Yoshida, Nobutaka Fukagawa, Yasukazu Kuwayama
  • Patent number: 8866995
    Abstract: A liquid crystal display (LCD) device is disclosed, which comprises a liquid crystal panel which can be displayed in any other color instead of a black color during a non-driving mode through the use of one-color film for selectively reflecting light with a predetermined wavelength. The LCD device comprises a backlight unit for supplying light to a liquid crystal panel including lower and upper substrates; a first polarizing plate formed between the lower substrate and the backlight unit; a second polarizing plate formed on the upper substrate; a passivation substrate for protecting the lower and upper substrates; and a one-color film for selectively reflecting light with a predetermined wavelength during a non-driving mode of the backlight unit.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: October 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Beom Lee, Jong Won Moon, Hye Rin Hyun
  • Patent number: 8865895
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: October 21, 2014
    Assignee: Crysoptix K.K.
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko
  • Patent number: 8867001
    Abstract: A patterned retardation film including a base substrate, a patterned resin layer and a liquid crystal layer is provided. The patterned resin layer having plurality of first areas and a plurality of second areas is disposed on the base substrate. The combination of the first and second areas is a grating-like stripe structure. The patterned resin layer includes an aligning micron structure. The aligning micron structure includes a plurality of first sub micron grooves and a plurality of second sub micron grooves respectively located in the first areas and the second areas. The liquid crystal layer is disposed on the patterned resin layer and aligned with the aligning micron structure. The liquid crystal layer disposed above the first areas provides a first phase retardation. The liquid crystal layer disposed above the second areas provides a second phase retardation.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 21, 2014
    Assignee: Benq Materials Corp.
    Inventors: Fung-Hsu Wu, Lung-Hai Wu
  • Patent number: 8848146
    Abstract: An O plate is included which includes a phase difference compensating layer which is an assembly of columns obtained by oblique deposition of an anisotropic refractive index medium with respect to a substrate and has negative biaxial refractive index anisotropy. In the O plate, a front surface phase difference value of the O plate in the normal direction is 5-15 nm, and a ratio of Re(?30)/Re(30) is 2.5-5.5.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 30, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Kazu Kobayashi, Yutaka Tsuchiya
  • Patent number: 8848118
    Abstract: The present invention discloses a 3D display device and a phase retarder film thereof. The phase retarder film is used to be mounted on a liquid crystal display panel adopting a half-source driving structure and includes a plurality of phase retarder rows arranged side by side. Each phase retarder row has two wave-shaped sides, and each wave-shaped side corresponds in position to one shading row of a black matrix of the liquid crystal display panel. When the phase retarder film is mounted with a positional error, adjacent pixel electrodes in the same pixel row can have the same light-passing area relative to the phase retarder rows having wave-shaped sides so as to avoid a color washout problem.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: September 30, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Chia-chiang Hsiao, Chih-wen Chen
  • Patent number: 8842243
    Abstract: An IPS or FFS-mode liquid-crystal display device includes an optical compensatory film having a first retardation region and a second retardation region adjacent to the first retardation region, wherein a slow axis of the first retardation region is parallel to a slow axis of the second retardation region, retardation in-plane at a wavelength of 550 nm, Re(550) of the second retardation region is equal to or less than 20 nm, and retardation along the thickness-direction at a wavelength of 550 nm, Rth(550) of the second retardation region is from 20 nm to 120 nm, the first retardation region includes a retardation layer containing a vertically-aligned discotic liquid-crystal compound, and Re thereof at a wavelength of 450 nm, 550 nm and 650 nm, Re(450), Re(550) and Re(650) satisfy Re(450)/Re(550) of from 1 to 1.13 and Re(650)/Re(550) of from 0.94 to 1.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 23, 2014
    Assignee: Fujifilm Corporation
    Inventor: Hiroyuki Kaihoko
  • Patent number: 8842237
    Abstract: A liquid crystal display device includes a liquid crystal display panel, a first back light module (BLU), a polarizer, a second BLU and a pattern retarder. The first BLU is disposed below the liquid crystal display panel for emitting light. The polarizer is disposed on the first BLU, to convert the light into a first light. The second BLU is disposed between the liquid crystal display panel and the first BLU for emitting a second light. The pattern retarder is disposed between the liquid crystal display panel and the first BLU. The pattern retarder includes plural first and second polarizing regions with orthogonal polarization states, and the first and second polarizing regions are arranged in an interlaced order. Also, the polarization state of the first light is orthogonal to the polarization state of the second polarizing region.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 23, 2014
    Assignee: Innolux Corporation
    Inventor: Yen-Liang Chen
  • Patent number: 8836874
    Abstract: A three-dimensional image display apparatus includes a display panel configured to display an image and a shutter panel configured to separate the image into a left-eye image and a right-eye image. The shutter panel includes a first thin-film substrate disposed adjacent to the display panel, a second thin-film substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate is disposed between the second substrate and the display panel.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Wook Do, Seungbeom Park, Duckjong Suh, Sang-Gu Lee, Jieun Jang, Min Oh Choi
  • Patent number: 8836897
    Abstract: A liquid crystal display device comprising a liquid crystal cell and a polarizer arranged on at least one outer side of the liquid crystal cell, wherein the liquid crystal cell includes a pair of substrates at least one of which has an electrode and which are arranged oppositely to each other, and a liquid crystal layer sandwiched between the substrates, and at least one substrate includes at least three color pixels of B, G and R satisfying the following formula (1-1), and the polarizer includes a polarizing element and a film satisfying the following formula (1-2) and containing an optically-anisotropic layer: ?20 nm?{Rth[cell](630)?Rth[cell](440)}?28 nm,??(1-1) 1 nm<Re(630)?Re(440)?12 nm.??(1-2).
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 16, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Jun Takeda, Makoto Ishiguro, Isao Fujiwara, Hirofumi Toyama, Yoji Ito
  • Patent number: 8830426
    Abstract: Techniques are provided to reduce color shifts in an LCD. A sub-pixel in the LCD may comprise a reflective part and a transmissive part. The reflective and transmissive parts may be covered by one or more retardation films. To reduce color shifts in general and especially in oblique viewing angles, at least one retardation film in the sub-pixel may comprise a slow axis with an elevation angle from a surface of a substrate layer of the LCD.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Pixel Qi Corporation
    Inventors: Ruibo Lu, Mary Lou Jepsen
  • Patent number: 8830425
    Abstract: An optical component includes a birefringent liquid-crystal layer, which has at least two regions with different optical axes, wherein an optical delay of the liquid-crystal layer in each of the at least two regions depends on an angle of observation that differs from the angle of observation of other of the at least two regions.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 9, 2014
    Assignee: Rolic AG
    Inventors: Martin Schadt, Hubert Seiberle
  • Patent number: 8823909
    Abstract: An optical film is provided and has retardations satisfying relations (1) to (3): 0?Re(550)?10;??(1) ?25?Rth(550)?25; and??(2) |I|+|II|+|III|+|IV|>0.5 (nm),??(3) with definitions: I=Re(450)?Re(550); II=Re(650)?Re(550); III=Rth(450)?Rth(550); and IV=Rth(650)?Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: September 2, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakayama, Hirofumi Toyama, Yuta Takahashi
  • Patent number: 8821994
    Abstract: A multilayer optical retardation compensation film having at least one positive C-plate and at least one negative C-plate is used in an LCD device. The multilayer film may have a substantially flat wavelength dispersion curve, or the multilayer film combined with other layers in the LCD device may have a substantially flat wavelength dispersion curve. Polymer films for the positive C-plate may be identified according to their absorbance maxima at certain wavelength ranges.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: September 2, 2014
    Assignee: Akron Polymer Systems
    Inventors: Frank W. Harris, Jiaokai Alexander Jing, Ted Calvin Germroth, Xiaoliang Joe Zheng, Brian Michael King, Dong Zhang, Thauming Kuo, Qifeng Zhou
  • Patent number: 8817210
    Abstract: There is provided a flat panel display (FPD). The FPD includes a display panel, a substrate on the display panel, and an anti-reflection polarizer. The anti-reflection polarizer is on the substrate to absorb light reflected from a surface of the substrate or a surface of the display panel. The anti-reflection polarizer includes a top polarizing film for linearly polarizing the light, a top phase difference film for circularly polarizing light that passes through the top polarizing film, a first supporting film between the top polarizing film and the phase difference film to support the top phase difference film, and a second supporting film that faces the first supporting film with the top phase difference film interposed therebetween to support the top phase difference film.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jung-Mok Park
  • Patent number: 8817209
    Abstract: Disclosed is a patterned retarder film which comprises a substrate, a patterned configuration layer and a liquid crystal layer. The patterned configuration layer includes a plurality of first regions and a plurality of second regions A liquid crystal layer is disposed on the patterned configuration layer, wherein liquid crystal molecules above the first regions is arranged irregularly because of the protrusions, the liquid crystal molecules above the second regions are aligned with the aligning micro-structures. The liquid crystal layer in above the first regions provides a first phase retardation, the liquid crystal layer above the second regions provides a second phase retardation, and the difference between the first phase retardation and the second phase retardation is 180°. The method for manufacturing the same is disclosed.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 26, 2014
    Assignee: BenQ Materials Corporation
    Inventors: Chen-Kuan Kuo, Che-Kuei Kang
  • Patent number: 8810742
    Abstract: A display apparatus includes: a display unit that displays a two-dimensional image; and a variable lens array disposed to face the display unit, wherein the variable lens array includes a variable phase difference layer that receives incident linearly polarized light polarized in a first direction and allows the linearly polarized light polarized in the same direction to exit or allows linearly polarized light polarized in a second direction switched from the first direction and different therefrom to exit, and an optically anisotropic layer that receives the light having exited out of the variable phase difference layer and works as a lens array for one of the light polarized in the first direction and the light polarized in the second direction whereas working as a transparent layer for the other light.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 19, 2014
    Assignee: Japan Display West, Inc.
    Inventors: Tsuyoshi Ohyama, Daisuke Takama
  • Patent number: 8804057
    Abstract: The present invention provides a 3D display panel and a 3D display system. The system comprises the 3D display panel and polarizer glasses. A first optical retardation value of a quarter wave (?/4) retarder film of the 3D display panel can be designed according to a second optical retardation value of the polarizer glasses. The present invention can improve a narrow viewing angle problem existing in the conventional 3D display.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 12, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Bin Fang, Chia-chiang Hsiao, Chih-wen Chen
  • Patent number: 8797483
    Abstract: A manufacturing method of a phase retarding film, a manufacturing method of a stereoscopic display apparatus, and a phase retarding film are provided. A light transmissive substrate is provided. An alignment layer is formed on the light-transmissive substrate. The alignment layer is aligned. A birefringent material film is formed on the alignment layer. A reaction-causing light is used to expose a first patterned region of the birefringent material film to induce a reaction on the first patterned region, wherein a second patterned region of the biregringent material film is not exposed to the reaction-causing light. The second patterned region of the biregringent material film is removed.
    Type: Grant
    Filed: May 22, 2011
    Date of Patent: August 5, 2014
    Assignee: Industrial Technology Research Institute
    Inventor: Chia-Tai Chen
  • Publication number: 20140205822
    Abstract: An optical compensation film is disclosed herein, which is made by uniaxially or biaxially stretching of a multilayer film including a first polymer film having a refractive index profile satisfying the equations of (nx+ny)/2?nz and |nx?ny|<0.005 and a second polymer film having a refractive index profile satisfying the equations of (nx+ny)/2<nz and |nx?ny|<0.005, wherein nx and ny represent in-plane refractive indices and nz the thickness-direction refractive index of the films, and wherein said optical compensation film has a positive in-plane retardation that satisfies the relations of 0.7<R450/R550<1 and 1<R650/R550<1.25, wherein R450, R550, and R650 are in-plane retardations at the light wavelengths of 450 nm, 550 nm, and 650 nm respectively.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: AKRON POLYMER SYSTEMS, INC.
    Inventors: BIN WANG, THAUMING KUO, TED GERMROTH, DONG ZHANG, DOUG McWILLIAMS, FRANK HARRIS, JIAOKAI JING, XIAOLIANG ZHENG
  • Publication number: 20140198272
    Abstract: To reduce the crosstalk caused by the optical characteristic of the support film. A patterned retardation film comprising at least a support film (14) having optical anisotropy and a patterned retardation layer (12) disposed on the support film and having a first retardation region and a second retardation region, at least one of an in-plane slow axis direction and a retardation being different between the first and second retardation regions, wherein a variation in the in-plane slow axis direction of the support film is 3° or more.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 17, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Yuya HAMAGUCHI, Yujiro YANAI, Junichi HIRAKATA
  • Patent number: 8780285
    Abstract: An apparatus for viewing stereoscopic images may include, but is not limited to: a first viewing lens including a first polarization layer; a second viewing lens including a second polarization layer; and one or more birefringence compensation layers. Further, the apparatus may be viewing glasses including a frame wearable by a user.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: July 15, 2014
    Assignee: Rockwell Collins, Inc.
    Inventors: Albert N. Stuppi, Bruce D. Hufnagel, Craig E. Harwood
  • Patent number: 8780318
    Abstract: A patterned phase retardation film is disclosed, which includes substrate, a phase retardation layer on the substrate comprising a plurality of first regions of liquid crystal materials and a plurality of second regions of curable resin, wherein the first regions and the second regions are in a grating stripe structure which is parallel and interleaved with each other the top part of the second regions is formed with at least one inclined plane; and a planarization layer for planarizing the phase retardation layer; wherein the first regions provide a first phase retardation and second regions provide a second phase retardation, the first phase retardation and the second phase retardation have a phase difference of 180°. The method for manufacturing the patterned phase retardation film is also disclosed.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 15, 2014
    Assignee: BenQ Materials Corporation
    Inventors: Lung-Hai Wu, Chen-Kuan Kuo, Fung-Hsu Wu, Cyun-Tai Hong, Chih-Haw Wang
  • Patent number: 8772795
    Abstract: To provide a light-emitting device including the plurality of light-emitting elements having a structure in which a light-emitting area is large and defects in patterning of light-emitting elements are suppressed. To provide a lighting device including the light-emitting device. The light-emitting device includes a first wiring provided over a substrate having an insulating surface, an insulating film provided over the first wiring, a second wiring provided over the insulating film, and a light-emitting element unit including a plurality of light-emitting elements provided over the first wiring with the insulating film provided therebetween. The plurality of light-emitting elements each include a first electrode layer having a light-blocking property, a layer containing an organic compound in contact with the first electrode layer, and a second electrode layer having a light-transmitting property in contact with the layer containing an organic compound.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: July 8, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Koji Ono, Yoshifumi Tanada