Passive Liquid Crystal Polarizer Patents (Class 349/194)
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Patent number: 11947142Abstract: Provided is an optical film in which black tinting is suppressed in front and oblique directions when the optical film is used as a circularly polarizing plate in an organic EL display device. The optical film is an elongated optical film having optically anisotropic layers (A), (B), and (C), in this order, in which layer (A) is formed by fixing a vertically aligned disk-like liquid crystal compound, layer (B) is formed by fixing a twist-aligned rod-like liquid crystal compound with a thickness direction as a helical axis, layer (C) is formed by fixing a vertically aligned rod-like liquid crystal compound, an in-plane slow axis of layer (A) is parallel to an in-plane slow axis on a surface of layer (B) on a layer (A) side, and layers (A) and (B) are disposed such that the in-plane slow axes thereof satisfy a predetermined positional relationship.Type: GrantFiled: February 15, 2023Date of Patent: April 2, 2024Assignee: FUJIFILM CorporationInventors: Yuta Takahashi, Shinpei Yoshida
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Patent number: 11924588Abstract: A method includes: accessing a canvas image including; a target left eyebrow geometry arranged on a left side of a facial centerline and including a first set of curvilinear segments; and a target right eyebrow geometry arranged on a right side of the facial centerline opposite the left target left eyebrow geometry and including a second set of curvilinear segments. The method also includes, during an annotation period: via a projection system, projecting the canvas image onto a user's face; centering the facial centerline of the canvas image on the user's face; locating the first set of curvilinear segments of the target left eyebrow geometry, projected onto the user's face, relative to features of the left eyebrow of the user; and mirroring the second set of curvilinear segments of the target right eyebrow geometry, projected onto the user's face, across the vertical face centerline.Type: GrantFiled: May 19, 2023Date of Patent: March 5, 2024Assignee: Fleek Inc.Inventor: Xiao Qing Ma
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Patent number: 11919327Abstract: Provided are a transfer-type decorative sheet and a method of manufacturing a transfer-type decorative sheet, the transfer-type decorative sheet including a decorative layer that has excellent peelability from a temporary support and excellent glossiness in case of being seen from an oblique direction. The transfer-type decorative sheet includes: a temporary support; an underlayer that is peelable from and disposed on one surface of the temporary support; and a decorative layer that is disposed on the underlayer, in which the decorative layer includes at least one cholesteric liquid crystal layer, the underlayer is a layer that is formed of a composition including a monomer having one or two polymerizable groups, and a water contact angle of the underlayer is 50° or more.Type: GrantFiled: September 28, 2021Date of Patent: March 5, 2024Assignee: FUJIFILM CorporationInventor: Hideki Kaneiwa
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Patent number: 11841521Abstract: Provided is an optical film that has a thin thickness, is suitable in terms of continuous productivity, and exhibits suppressed tinting of black color in a front direction and an oblique direction in a case of being used as a circularly polarizing plate in an organic EL display device; a circularly polarizing plate; and an organic EL display device. The optical film includes an elongated support and a first, a second, and a third optically anisotropic layer in this order, in which a thickness of the elongated support is 10 to 45 ?m, the first optically anisotropic layer is formed of a rod-like liquid crystal compound, the second optically anisotropic layer is formed by fixing a twist-aligned liquid crystal compound having a helical axis in a thickness direction, the third optically anisotropic layer is formed of a liquid crystal compound, and each optically anisotropic layer exhibits predetermined optical characteristics.Type: GrantFiled: March 18, 2022Date of Patent: December 12, 2023Assignee: FUJIFILM CorporationInventors: Satoshi Yanokuchi, Shinpei Yoshida, Yuta Takahashi
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Patent number: 11833792Abstract: The problem addressed by this invention is to provide a laminate for molding having excellent moldability and post-curing properties of the hard-coat layer, and which can maintain the surface of the hard-coat layer in a satisfactory state while uncured. This problem is solved by a laminate for molding containing a hard-coat layer and a masking film affixed to the surface of the hard-coat layer, having an adhesive surface, which is the hard-coat layer-side surface of the masking film, with a surface free energy of at least 30.0 (mN/m) measured in accordance with the OWRK method, before being affixed. The hard-coat layer is in an uncured state.Type: GrantFiled: August 5, 2019Date of Patent: December 5, 2023Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasutaka Fukunaga, Fumiaki Kakeya
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Patent number: 11835731Abstract: The invention relates to an optical collimator for focusing light by means of a plurality of optical surfaces, which are designed as light entry surfaces and/or light exit surfaces and/or reflection surfaces, which form respective optical boundary surfaces with a change in the optical density. The aim of the invention is to propose a collimator by means of which homogeneous illumination is possible even if a plurality of light sources is used, the collimator having a compact design and being economical to produce. This aim is achieved, according to the invention, in that the collimator has a plurality of concave micro-lenses (3, 11), which are formed on at least one of the optical surfaces.Type: GrantFiled: June 18, 2019Date of Patent: December 5, 2023Assignee: LEDLENSER GMBH & CO. KGInventor: Oliver Dross
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Patent number: 11726367Abstract: An object of the present invention is to provide a phase difference film having excellent alignment without the need for alignment treatment on a support, a method for manufacturing a phase difference film, a polarizing plate, and a liquid crystal display device. The phase difference film of the present invention includes a support, and a liquid crystal layer formed of a liquid crystal composition containing a liquid crystalline compound so as to be in contact with the support, in which a surface energy of a surface of the support on which the liquid crystal layer is formed is 45 mN/m or more and a non-polar dispersion force component included in the surface energy is 45 mN/m or more, the liquid crystalline compound is immobilized in an aligned state, and a contrast is more than 10000.Type: GrantFiled: February 17, 2021Date of Patent: August 15, 2023Assignee: FUJIFILM CorporationInventor: Chie Moriya
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Patent number: 11697695Abstract: A polymerizable composition containing: a) a polymerizable compound having one or two or more polymerizable groups and satisfying formula (I): Re(450 nm)/Re(550 nm)<1.0 (I); b) at least one photopolymerization initiator selected from the group consisting of alkylphenone-based compounds, acylphosphine oxide-based compounds, and oxime ester-based compounds; and c) a polymerization inhibitor. An optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable liquid crystal composition. The polymerizable composition is excellent in solubility and has high storage stability, so that no precipitation of crystals etc. occurs. When a film-shaped polymer is produced by polymerizing the above composition, the unevenness of the surface of the coating film is small while the alignment of the liquid crystal is maintained, and high durability is obtained. Therefore, the polymerizable composition is useful.Type: GrantFiled: January 12, 2016Date of Patent: July 11, 2023Assignee: DIC CORPORATIONInventors: Kouichi Endo, Toru Ishii, Yasuhiro Kuwana, Kazuaki Hatsusaka, Mika Yamamoto
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Patent number: 11635558Abstract: Provided is an image display device including an optical laminate having, in order, a pressure-sensitive adhesive layer, a specific laminate including an alignment layer and an optically anisotropic layer which are adjacent to each other, and another pressure-sensitive adhesive layer in this order, in which the pressure-sensitive adhesive layers are adjacent to the two surfaces of the specific laminate. The specific laminate has a thickness of 15 ?m or less, the optically anisotropic layer has a thickness of 5 ?m or less, and a thickness d of the alignment layer and an elastic modulus E of the alignment layer satisfy Expression (1): ?E+0.45×d+3.6>0 (1), where d is in units of ?m, and E is in units of GPa.Type: GrantFiled: March 23, 2022Date of Patent: April 25, 2023Assignee: FUJIFILM CorporationInventors: Takashi Yonemoto, Naoki Koito, Shun Inoue
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Patent number: 11560517Abstract: A photoreactive liquid crystal composition containing (A) a photoreactive polymer liquid crystal which includes a photoreactive side chain in which at least one type of reaction selected from (A-1) photocrosslinking and (A-2) photoisomerization occurs, and (B) a low molecular weight liquid crystal. An optical element or display element is formed having a liquid crystal cell including the photoreactive liquid crystal composition.Type: GrantFiled: July 7, 2020Date of Patent: January 24, 2023Assignees: UNIVERSITY OF HYOGO, NAGAOKA UNIVERSITY OF TECHNOLOGY, NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Tomoyuki Sasaki, Hiroshi Ono, Nobuhiro Kawatsuki, Kohei Goto
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Patent number: 11279880Abstract: A polymerizable liquid crystal composition capable of manufacturing an optically anisotropic film having excellent light fastness; and an optically anisotropic film, an optical film, a polarizing plate, an image display device, and an organic electroluminescent display device, each of which uses the polymerizable liquid crystal composition. The polymerizable liquid crystal composition of an embodiment of the present invention contains a polymerizable liquid crystal compound having reverse-wavelength dispersion properties and an aromatic polyether-based compound.Type: GrantFiled: May 28, 2019Date of Patent: March 22, 2022Assignee: FUJIFILM CorporationInventors: Keita Takahashi, Mayumi Nojiri, Ayako Muramatsu
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Patent number: 11022784Abstract: Folding optics are used in conjunction with a lens system to reduce a back focal length of a head-mounted display. The lens system provides optical power to focus light from an optical display. The folding optics reflects light to fold upon itself to reduce a distance between the lens system and the optical display.Type: GrantFiled: August 17, 2018Date of Patent: June 1, 2021Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Brian Wheelwright, Ying Geng, Fenglin Peng, Yusufu Njoni Bamaxam Sulai, Jacques Gollier
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Patent number: 11002896Abstract: Disclosed is a retardation film which shows a high light selective absorbency to visible rays having short wavelengths near 400 nm to have a high light resistance, and which can give, when used in a display device, good display properties to the display device. This film is a retardation film, satisfying all of the following formulae (1) to (4): 2?A(380) (1), 0.5?A(400) (2), 0.4?A(420)/A(400) (3), and 100 nm?Re(550)?170 nm (4), in which each A(?) represents the absorbance of the film at a wavelength ? nm, and Re (550) represents the in-plane retardation value of the film to a light ray having a wavelength of 550 nm.Type: GrantFiled: December 27, 2016Date of Patent: May 11, 2021Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki Hatanaka, Shinnosuke Yoshioka, Shoichi Ozawa, Tatsuaki Kasai
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Patent number: 10937994Abstract: An organic electroluminescence display device includes, from a visible side, at least: a circular polarization plate; and an organic electroluminescence display element having a pair of electrodes and an organic light emitting layer sandwiched therebetween. A high refractive index layer has a refractive index of greater than 1.7 and less than 2.1 is disposed between the plate and one of the electrodes on the visible side, the plate has a polarizer, a ?/2 plate, and a ?/4 plate in this order from the visible side, a retardation RthA (550) of the ?/2 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?120 nm and less than ?40 nm, and a retardation RthB (550) of the ?/4 plate in a thickness direction at a wavelength of 550 nm is within a range of greater than ?60 nm and less than 20 nm.Type: GrantFiled: October 21, 2019Date of Patent: March 2, 2021Assignee: FUJIFILM CorporationInventor: Shinpei Yoshida
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Patent number: 10858590Abstract: A compound capable of suppressing the occurrence of alignment defects and lowering the phase transition temperature of a liquid crystal composition without impairing optical characteristics is provided. In particular, a compound represented by formula (A) is provided in which the variable groups are as defined in the specification.Type: GrantFiled: October 30, 2017Date of Patent: December 8, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Shinnosuke Yoshioka, Noriyuki Hida, Katsuaki Miyazaki, Daichi Fujimoto
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Patent number: 10734454Abstract: Display stacks are disclosed. More specifically, display stacks including an emissive display including a plurality of organic light emitting diodes, a circular polarizer, and a color correction film disposed between the emissive display and the circular polarizer are disclosed. The color correction film includes a plurality of microlayers and may provide reduced color shift performance between on and off-axis viewing angles compared to display stacks not including the color correction film.Type: GrantFiled: August 30, 2017Date of Patent: August 4, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gilles J. Benoit, Daniel J. Schmidt, Stephen P. Maki
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Patent number: 10598982Abstract: The present disclosure provides a LCD screen, including a liquid crystal panel, a first functional layer disposed on an array substrate of the liquid crystal panel, a quarter-wave plate and a polarizing layer sequentially stacked on the first functional layer, wherein the array substrate has a metal wire that reflects ambient light sequentially passing through the polarizing layer, the quarter-wave plate and the first functional layer and striking the surface of the metal wire; an included angle is between the optical axis of the quarter-wave plate and the absorption axis of the polarizing layer so as to block the ambient light reflected by the metal wire in the polarizing layer. The angle between the optical axis of the quarter-wave plate and the absorption axis of the polarizing layer of the present disclosure is 30-60°, so that the ambient light entering the polarizing layer is blocked in the polarizing layer.Type: GrantFiled: May 22, 2018Date of Patent: March 24, 2020Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bo Hai
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Patent number: 10551538Abstract: A flexible display device includes a display module including a bending area that is bendable along a reference axis, and a polarization member disposed on the display module. The polarization member includes a ?/4 phase retardation layer disposed on the display module and including a nematic liquid crystal coating layer. The polarization member further includes a first adhesion member disposed on the ?/4 phase retardation layer, a ?/2 phase retardation layer disposed on the first adhesion member and including a discotic liquid crystal coating layer, a second adhesion member disposed on the ?/2 phase retardation layer, and a line polarizer disposed on the second adhesion member and including an absorption axis, wherein an angle between the reference axis and the absorption axis is about 15 degrees to about 75 degrees.Type: GrantFiled: October 27, 2017Date of Patent: February 4, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Heeyoung Lee, Eunmi Seo
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Patent number: 10495791Abstract: The present invention provides an optical film including a light reflection layer, in which the light reflection layer is a layer in which alignment of liquid crystal molecules is immobilized, the liquid crystal molecule forms a helical structure in a film thickness direction of the light reflection layer, and a tilt angle of the liquid crystal molecule is 15° to 55°. The present invention also provides a manufacturing method of the optical film including curing a polymerizable liquid crystal composition including a liquid crystal compound and a chiral agent interposed between a support and another support. In the optical film according to the present invention, an absolute value of oblique retardation is smaller. In the liquid crystal display device including the optical film, front surface brightness is high and an oblique change in the shade is suppressed.Type: GrantFiled: June 30, 2017Date of Patent: December 3, 2019Assignee: FUJIFILM CorporationInventors: Yukito Saitoh, Hideyuki Nishikawa, Kunihiro Atsumi, Wataru Hoshino, Yoshiaki Takada
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Patent number: 10490612Abstract: An organic light emitting diode display includes: a display module including a first organic light emitting diode to emit light with a first wavelength, a second organic light emitting diode to emit light with a second wavelength, and a third organic light emitting diode to emit light with a third wavelength; a phase difference layer including a first liquid crystal pattern on the first organic light emitting diode, and a second liquid crystal pattern on the second organic light emitting diode and the third organic light emitting diode; and a linear polarization layer on the phase difference layer.Type: GrantFiled: October 2, 2017Date of Patent: November 26, 2019Assignee: Samsung Display Co., Ltd.Inventors: Suk Choi, Hee Young Lee, Cheol Kyu Kim, Sun Haeng Cho, Hyun-Joo Hwang
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Patent number: 10459132Abstract: An optical member includes: a substrate; and a dot formed on a surface of the substrate. The dot has wavelength selective reflecting properties, and a cholesteric structure which has a stripe pattern including bright and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope. A surface shape of the dot opposite to the substrate in a cross-section of the dot in a thickness direction has at least one inflection point. In the cross-section, an angle between a normal line perpendicular to a line, formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot, is in a range of 70° to 90°. A proportion of a retroreflective area of the optical member is high when observed after light irradiation from an oblique direction to a normal direction perpendicular to the optical member.Type: GrantFiled: September 14, 2017Date of Patent: October 29, 2019Assignee: FUJIFILM CorporationInventors: Akira Yamamoto, Yoji Ito, Michio Nagai, Daisuke Kashiwagi, Nobuhiko Ichihara
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Patent number: 10279603Abstract: A recording material includes applying a first ink including a first polymerized compound using an inkjet method, polymerizing the first polymerized compound using ultraviolet light irradiation to form a first layer, applying a second ink containing a second polymerized compound and metal powder on the area on which the first layer is formed using the inkjet method, and polymerizing the second polymerized compound using ultraviolet light irradiation to form a second layer. A discharged volume of the first ink in the area is 2.0 to 20.0 g/m2. A time from landing of the first ink droplets until ultraviolet light irradiation is 0.0010 to 1.0 second. A discharged volume of the second ink in the area is 10 to 80 volume % compared to the discharged volume of the first ink. A time from landing of the second ink droplets until ultraviolet light irradiation is 5.0 to 60.0 seconds.Type: GrantFiled: October 14, 2016Date of Patent: May 7, 2019Assignee: Seiko Epson CorporationInventors: Tomohiro Ogawa, Hiroshi Takiguchi, Naoyuki Toyoda
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Patent number: 9939675Abstract: A color filter substrate, a liquid crystal display panel, and a liquid crystal display are described. The color filter substrate has: a base substrate, a color resist layer disposed on a surface of the base substrate and having a plurality of colored-filter color resists each configured to filter a stray light and emit a light corresponding to a color; an upper polarizing sheet disposed on the other surface of the base substrate; and a ¼ wavelength plate covering on the upper polarizing sheet and having a plurality of areas which are respectively corresponding to the colored-filter color resists and face toward the colored-filter color resists, respectively. An in-plane retardation Re of the ¼ wavelength plate in each of the areas satisfies: Re=?/4, wherein ? is a wavelength of the light corresponding to the color.Type: GrantFiled: November 3, 2016Date of Patent: April 10, 2018Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Haibo Peng
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Patent number: 9895866Abstract: Disclosed are an anisotropic organic thin film and its manufacturing method. The method includes steps of depositing a mixed solution including an ionic liquid and a polymerizable material on a substrate; separating positive ions from negative ions in the ionic liquid, so that the polymerizable material is aligned; polymerizing the aligned polymerizable material, so that an aligned first thin film is obtained after cured; and depositing liquid crystal molecules on the first thin film, and polymerizing the liquid crystal molecules to form a second thin film, wherein the second thin film is aligned in a way that matches with the first thin film, and the first thin film and the second thin film constituent the anisotropic organic thin film.Type: GrantFiled: January 14, 2015Date of Patent: February 20, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wei Huang
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Patent number: 9786724Abstract: An organic light emitting diode display includes: a display module including a first organic light emitting diode to emit light with a first wavelength, a second organic light emitting diode to emit light with a second wavelength, and a third organic light emitting diode to emit light with a third wavelength; a phase difference layer including a first liquid crystal pattern on the first organic light emitting diode, and a second liquid crystal pattern on the second organic light emitting diode and the third organic light emitting diode; and a linear polarization layer on the phase difference layer.Type: GrantFiled: June 4, 2015Date of Patent: October 10, 2017Assignee: Samsung Display Co., Ltd.Inventors: Suk Choi, Hee Young Lee, Cheol Kyu Kim, Sun Haeng Cho, Hyun-Joo Hwang
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Patent number: 9612520Abstract: A polarized projection device includes a light source, a light modulator, and a lens module. The light source is configured for providing a light beam. The light modulator is configured for modulating the light beam into an image. The lens module is configured for converting the image into a polarized image, and includes a polarized prism group, a first polarized module, a second polarized module, a lens, and a half wave plate. The polarized prism group has an incident surface, a light-emitting surface, a first relay surface, and a second relay surface. The image enters the polarized prism group from the incident surface. The first (second) polarized module is disposed off axis at the first (second) relay surface and includes a first (second) reflector and a first (second) quarter wave plate. The lens is disposed at the light-emitting surface. The half wave plate is partially disposed on the lens.Type: GrantFiled: March 23, 2015Date of Patent: April 4, 2017Assignee: DELTA ELECTRONICS, INC.Inventor: June-Jei Huang
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Publication number: 20150146156Abstract: To provide an optically anisotropic substance having a negative uniaxial phase difference film and a positive uniaxial phase difference film, and excellent heat resistance and sputtering resistance. The positive uniaxial phase difference film is formed in combination with a bifunctional polymerizable liquid crystal compound, the negative uniaxial phase difference film is formed in combination of the bifunctional polymerizable liquid crystal compound with an optically active compound having a polymerizable binaphthol moiety, and additional thermosetting treatment (postcure) is applied after the negative uniaxial phase difference film is photocured, and when glass transition temperature after the negative uniaxial phase difference film is cured is 85° C. or higher and 115° C. or lower, additional thermosetting treatment temperature is adjusted to 220° C. or higher and 250° C. or lower, and when the glass transition temperature is higher than 115° C.Type: ApplicationFiled: November 17, 2014Publication date: May 28, 2015Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Yoshiharu HIRAI, Nagahisa MIYAGAWA, Daisuke OOTSUKI, Mayumi TANABE, Kazumi NARA
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Patent number: 9019255Abstract: An organic light emitting display apparatus includes a polarizer film arranged on a substrate or an encapsulation substrate that faces an image realized by a display unit, wherein the polarizer film includes a plurality of regions having different light transmittances. By using the polarizer film, a luminance difference due to a voltage drop may be compensated for so that a uniform luminance may be obtained when the image is realized.Type: GrantFiled: April 1, 2010Date of Patent: April 28, 2015Assignee: Samsung Display Co., Ltd.Inventors: Sung-Joo Hwang, Hee-Chul Jeon, Jung-I Yun, Sae-Hee Lim
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Publication number: 20150103295Abstract: A display device includes a first substrate, a second substrate, a first polarization element film which is directly formed on a surface of the second substrate on a side opposite to a side where the first substrate is arranged, and a first polarization layer which is formed in contact with a surface of the first polarization element film on a side opposite to a side where the second substrate is arranged. The first polarization element film is made of an aligned lyotropic liquid crystal material, and the first protective layer is made of a material having a refractive index smaller than a refractive index of the first polarization element film in a transmission axis direction, and has a thickness smaller than a thickness of the first polarization element film.Type: ApplicationFiled: December 23, 2014Publication date: April 16, 2015Inventors: Takato Hiratsuka, Masaya Adachi, Hiroshi Sasaki, Miharu Otani
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Publication number: 20150103279Abstract: This application relates a liquid crystal alignment film, a manufacturing method of the liquid crystal alignment film, an optical filter, and a display device. According to one illustrative liquid crystal alignment film, for example, a stereoscopic image can be displayed in wide viewing angles without losses of the brightness.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Byoung Kun JEON, Moon Soo Park, Bu Gon Shin, Sin Young Kim, Jong Byung Lee, Da Mi Lee, Ji Hoon Park
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Publication number: 20150079380Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.Type: ApplicationFiled: September 10, 2014Publication date: March 19, 2015Applicant: FUJIFILM CORPORATIONInventors: Ayako MURAMATSU, Shinnosuke SAKAI, Teruki NIORI, Shinichi MORISHIMA
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Publication number: 20150062701Abstract: There is provided a display device including a lens which guides light from a light source to a display surface, and a compensation member, having an inside surface opposite to a lens surface of the lens divided into a plurality of two-dimensional regions, in which a direction of an advance axis or a delay axis is controlled for each of the regions.Type: ApplicationFiled: August 11, 2014Publication date: March 5, 2015Applicant: Sony CorporationInventor: Ryoko Horikoshi
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Patent number: 8960914Abstract: Provided is a laser projection apparatus which forms each one frame by performing two-dimensional scanning with laser light and projects images on a screen (201) with blanking periods inserted between frames, the laser light having been outputted from a laser light source (110). The laser projection apparatus is provided with a chive controlling device (132) which, in each of the blanking periods, changes the polarization state of the laser light having been outputted from the laser light source. This configuration enables speckle reduction by having the polarization state changed from one frame to another, and also enables favorable image projection since there is no change in luminance within each one of the frames. Thus, it is made possible to obtain image quality more favorable than that obtained conventionally.Type: GrantFiled: September 14, 2010Date of Patent: February 24, 2015Assignee: Konica Minolta Opto, Inc.Inventor: Kenji Konno
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Publication number: 20150049291Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3), the second phase difference layer has a thickness of 0.2 ?m to 2.0 ?m, and further, the optical film has optical properties represented by the formulae (1) and (2): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) nx?ny<nz??(3).Type: ApplicationFiled: August 7, 2014Publication date: February 19, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Publication number: 20150041051Abstract: Laminated body including a substrate and an optically anisotropic layer. This layer satisfies the following expressions (1), (2), and (3): ?n50(450)/?n50(550)?1.00 (1), and 1.00??n50(650)/?n50(550) (2) wherein ?n50(450), ?n50(550) and ?n50(650) represent the respective birefringences of the layer that are derived from retardation values of the laminated body that are obtained by measuring the laminated body at wavelengths of 450 nm, 550 nm and 650 nm in the state of inclining the fast axis of the layer at an angle of 50 degrees to act as an inclined central axis; and nz>nx?ny (3) wherein nx and ny represent the respective refractive indexes of the substrate in directions parallel with the plane of the substrate, these directions being orthogonal to each other, and nz represents the refractive index of the substrate in a direction orthogonal to each of the directions about nx and ny.Type: ApplicationFiled: August 8, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Tadahiro KOBAYASHI
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Publication number: 20150042943Abstract: Optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer having an optical property represented by the formula (3), and the optical film has optical properties represented by the formula (1) and the formula (2). Re(450)/Re(550)?1.00(1)1.00?Re(650)/Re(550)(2)nx?ny<nz(3), wherein, Re(450) represents the in-plane phase difference value at a wavelength of 450 nm, Re(550) represents the in-plane phase difference value at a wavelength of 550 nm, and Re(650) represents the in-plane phase difference value at a wavelength of 650 nm, nx represents the principal refractive index in a direction parallel to the film plane, ny represents the refractive index in a direction parallel to the film plane and orthogonally-crossing the direction of nx, nz represents the refractive index in a direction vertical to the film plane, in an index ellipsoid formed by the phase difference layer.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Publication number: 20150043071Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3) and the optical film has optical properties represented by the formulae (1), (2) and (30): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) nx?ny<nz??(3) 0.001<|Rth(550)/Re(550)|<0.2??(30).Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Publication number: 20150042941Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3), and the optical film has optical properties represented by the formulae (1), (2) and (30) is provided: ?n(450)/?n(550)?1.00??(1) 1.00??n(650)/?n(550)??(2) nx?ny<nz??(3) 0.000<T<0.1??(30).Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Publication number: 20150042940Abstract: Provided is a method capable of producing an optically anisotropic laminated body in which defects are hardly generated so that light leakage is scarcely caused. This method is a method for producing an optically anisotropic laminated body including a substrate, an oriented film, and an optically anisotropic film, and has steps of: applying, to a surface of the substrate, an oriented-film-forming composition including an oriented-film-forming material and a solvent and having a viscosity of 4 mPa·s or less at 25° C., and drying the resultant to form the oriented film; and then applying, onto the resultant oriented film, an optically-anisotropic-layer-forming composition including a polymerizable liquid crystal compound, and drying the resultant to orient the polymerizable liquid crystal compound vertically to the surface of the substrate to form the optically anisotropic film.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Tadahiro KOBAYASHI
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Publication number: 20150042944Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having at least two phase difference layers and having optical properties represented by the formulae (30) and (31) is provided: ?2.0?a*?0.5??(30) ?0.5?b*?5.0??(31) wherein, a* and b* represent the chromatic coordinate in the L*a*b* color system.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Publication number: 20150042942Abstract: To provide an elliptical polarization plate excellent in suppression of coloration and light leakage in display. An elliptical polarization plate having a transparent protective film pasted to one surface of a polarizer and an optically anisotropic film pasted to the other surface thereof, wherein, when measured under condition of incident polarization in the film normal direction from the side of the transparent protective film, the visibility corrected single body transmittance is 43.0% or more, the visibility corrected polarization degree is 95.0% or more, the single body hue value a* is ?2.0 to 1.0 and the single body hue value b* is ?1.0 to 5.0, and the optically anisotropic film satisfies the formulae (1), (2) and (3): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) 100<Re(550)<160??(3).Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuyuki HATANAKA, Akira YOKOTA, Tadahiro KOBAYASHI, Mitsutaka SASE, Yoshifumi KOMATSU
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Patent number: 8952599Abstract: A polarization structure for a display device is disclosed. In one embodiment, the polarization structure includes a retardation layer, a polarizing layer and a polarizing pattern. The retardation layer may be configured to produce a phase difference between two polarization components of an incident light. The polarizing layer may have an adsorption axis along a first direction on the retardation layer. The polarizing layer may include a first region and a second region surrounding at least one side of the first region. The polarizing pattern may have an adsorption axis along a second direction perpendicular to the first direction in the second region.Type: GrantFiled: November 1, 2012Date of Patent: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hae-Goo Jung, Jang-Seok Ma
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Publication number: 20150029456Abstract: Provided is an optically anisotropic body having good coatability onto a laminate, in which the laminate includes an optically anisotropic layer formed of a composition including a liquid crystal compound by direct coating, and an isotropic resin layer formed on the optically anisotropic layer by direct coating, and has good coatability onto the isotropic resin layer. The laminate includes an optically anisotropic layer and an isotropic resin layer formed of a resin composition directly coated on the optically anisotropic layer, in which the optically anisotropic layer is a layer formed by curing a liquid crystal composition including a liquid crystal compound containing a polymerizable group; the isotropic resin layer is the outermost layer of the laminate; and the surface energy on the side of the isotropic resin layer of the laminate is 34.0 mN/m or more.Type: ApplicationFiled: October 1, 2014Publication date: January 29, 2015Applicant: FUJIFILM CORPORATIONInventor: Reona IKEDA
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Publication number: 20150029445Abstract: A retardation film includes a first optically anisotropic layer having liquid crystal compounds fixed in a homogeneously aligned state and a leveling agent, and having an order parameter of 0.75 to 0.95 and a thickness of 0.3 to 3.0 ?m; an intermediate layer including a resin having a solubility parameter SP value of 21.5 to 24.7, calculated by Hoy's method, the intermediate layer having a thickness of 3.0 ?m or less; and a second optically anisotropic layer having liquid crystal compounds fixed in a homeotropically aligned state, and having an order parameter OP of 0.6 to 0.95 and a thickness of 0.3 to 3.0 ?m, wherein OP is represented by the following equation; OP=(A??A?)/(2A?+A?) where A? is absorbance of the liquid crystal compounds for light polarized parallel to an alignment direction, and A? is absorbance of the liquid crystal compounds for light polarized perpendicular to the alignment direction.Type: ApplicationFiled: July 8, 2014Publication date: January 29, 2015Applicant: FUJIFILM CORPORATIONInventors: Jun TAKEDA, Shunya KATOH, Michio NAGAI, Yoji ITO
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Publication number: 20150022748Abstract: There is provided a phase difference film which includes a substrate, an acrylic resin layer, an intermediate layer containing a main component of the substrate and a main component of the acrylic resin layer between the substrate and the acrylic resin layer, and a specific phase difference layer directly on a surface on the opposite side to the intermediate layer of the acrylic resin layer, in which the substrate contains at least one kind of resin selected from a cellulose acylate resin, a cyclic olefin resin, a polycarbonate resin, an acrylic resin, and a styrene resin, the acrylic resin layer contains an acrylic resin having a polar group, the intermediate layer has a thickness of 0.1 ?m to 10 ?m, and the phase difference layer is formed by polymerizing a polymerizable liquid crystal compound containing a vertical alignment agent.Type: ApplicationFiled: October 8, 2014Publication date: January 22, 2015Applicant: FUJIFILM CORPORATIONInventors: Jun TAKEDA, Yuki MATSUDA, Nobuhiko ICHIHARA
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Patent number: 8922738Abstract: In a display device which includes: a first substrate; a second substrate; and a thin film polarizer which is directly formed on a surface of the second substrate on a side opposite to the first substrate, the thin film polarizer includes a polarization element film and a protection layer which is laminated to the polarization element film, the polarization element film is made of an aligned lyotropic liquid crystal material, and the protection layer has a refractive index smaller than a refractive index of the polarization element film in a transmission axis direction. The protection layer may have a thickness smaller than a thickness of polarization element film.Type: GrantFiled: February 8, 2011Date of Patent: December 30, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takato Hiratsuka, Masaya Adachi, Hiroshi Sasaki, Miharu Otani
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Patent number: 8917376Abstract: An object of the present invention is to provide a thin polarizing plate exhibiting a high contrast ratio. A polarizing plate of the present invention includes: a polarizer; a first protective layer provided on one side of the polarizer; and a second protective layer provided on the other side of the polarizer, wherein the first protective layer has a function of separating incident light into two polarized light components perpendicular to each other, transmitting one polarized light component, and reflecting the other polarized light component. Such a polarizing plate can exhibit a high contrast ratio, for example, in the case of being used in a liquid crystal display apparatus.Type: GrantFiled: April 10, 2013Date of Patent: December 23, 2014Assignee: Nitto Denko CorporationInventor: Hiroyuki Yoshimi
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Patent number: 8896774Abstract: 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: GrantFiled: December 7, 2012Date of Patent: November 25, 2014Assignee: FUJIFILM CorporationInventors: Yuta Takahashi, Hisato Nagase
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Patent number: 8895118Abstract: 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: GrantFiled: November 6, 2011Date of Patent: November 25, 2014Assignee: Crysoptix K.K.Inventors: Arthur Geivandov, Pavel Ivan Lazarev, Serguei Palto
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Publication number: 20140340626Abstract: An element for protection against forgery and/or copying is arranged on a substrate and includes an optically anisotropic layer which has at least two regions with different optical axes, characterized in that the substrate is a reflective polarizer. The optically anisotropic layer can include cross-linked liquid crystal monomers. The anisotropic layer can be placed on an orientation layer. The orientation layer can be in contact with the polarizer and can include a photo-oriented polymer network. A device for protection against forgery and/or copying is characterized in that an element as set forth above and an analyzer are arranged on the same substrate.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: Rolic AGInventors: Martin SCHADT, Hubert SEIBERLE