Polarization By Optical Activity Patents (Class 359/492.01)
-
Patent number: 12169298Abstract: The present invention relates to a polarizing plate including: a polarizer; a first hard coating layer positioned on the polarizer and containing binder resin including (meth) acrylate-based (co) polymer; a light transmitting substrate positioned on the first hard coating layer, having retardation of 3000 nm or more, and having in-plane birefringence; and a second hard coating layer positioned on the light transmitting substrate and including a binder resin, and solid-type inorganic nanoparticles dispersed in the binder resin, wherein the degree of a angle formed by the slow axis of the light transmitting substrate and the absorption axis of the polarizer is 5 to 85°, and an image display device including the same.Type: GrantFiled: March 6, 2019Date of Patent: December 17, 2024Assignee: LG CHEM, LTD.Inventors: Jung Hyun Seo, Kyungki Hong, Yeongrae Chang, Jin Young Park
-
Patent number: 11628656Abstract: An optically anisotropic polymer thin film includes a crystallizable polymer and an additive configured to interact with the polymer (e.g., via ?-? interactions) to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 50% of the molecular weight of the crystallizable polymer. Example crystallizable polymers include polyethylene naphthalate, polyethylene terephthalate, polybutylene naphthalate, polybutylene terephthalate, as well as derivatives thereof. Example additives, which may occupy up to approximately 10 wt. % of the polymer thin film, include aromatic ester oligomers, aromatic amide oligomers, and polycyclic aromatic hydrocarbons, for example. The optically anisotropic polymer thin film may be characterized by a refractive index greater than approximately 1.Type: GrantFiled: October 29, 2021Date of Patent: April 18, 2023Inventors: Sheng Ye, Andrew John Ouderkirk, Li Yao, Lafe Joseph Purvis, II, Arman Boromand
-
Patent number: 11119260Abstract: An optical sheet of the present invention is an optical sheet that has flexibility and is used in a curved state of being curved in one direction, and includes a polarized layer 12 that polarizes incident light and a specific wavelength absorption layer provided on a curved concave side from the polarized layer 12 and containing a resin material and a light absorbing agent that absorbs light in a specific wavelength range out of light in a wavelength range of 350 nm to 740 nm. In addition, the resin material is preferably a polycarbonate having a viscosity average molecular weight Mv of 20,000 to 30,000.Type: GrantFiled: September 27, 2018Date of Patent: September 14, 2021Assignee: SUMITOMO BAKELITE CO., LTD.Inventors: Takuya Oyama, Tetsuya Ishikawa
-
Patent number: 11067845Abstract: A liquid crystal panel and a method manufacturing the same are provided. The liquid crystal panel including a color filter substrate, an array substrate disposed opposite to the color filter substrate and a built-in polarizer. The built-in polarizer includes a substrate, a first inorganic layer, a metal wire grid layer, and a second inorganic layer. The substrate covers a side of the color filter substrate facing the array substrate. The first inorganic layer covers the substrate. The metal wire grid layer covers the first inorganic layer, wherein the metal wire grid layer has a plurality of metal wires parallel to each other. The second inorganic layer has a plurality of inorganic wires parallel to each other, wherein each of the inorganic wires correspondingly covers one of the metal wires.Type: GrantFiled: December 15, 2018Date of Patent: July 20, 2021Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Chaoqun Yang, Changchih Huang
-
Patent number: 10088705Abstract: A method for producing a polarizing film includes (1) preparing a laminate (a) which includes a carrier film and a polarizer with a thickness of 10 ?m or less formed on one surface of the carrier film and contains a polyvinyl alcohol-based resin; (2) peeling off the carrier film from the laminate (a); and (3) applying a liquid material to a side of the laminate (a) from which the carrier film has been peeled off and then solidifying or curing the liquid material to form a transparent resin layer with a thickness of 0.2 ?m or more, wherein the liquid material contains a resin component or a curable component capable of forming a resin layer. This production method enables the achievement of a polarizing film which is able to have satisfactory durability in a heated environment even in cases where a thin polarizer is used therefor.Type: GrantFiled: September 29, 2015Date of Patent: October 2, 2018Assignee: NITTO DENKO CORPORATIONInventors: Emi Miyai, Kentaro Ikeshima, Toshiki Omine, Satoshi Mita, Atsushi Kishi, Tomonori Ueno
-
Patent number: 9019609Abstract: An objective of the present invention is to alleviate streaky display unevenness that occurs in liquid crystal display elements when feeding optical function film from a continuous roll having score lines in the width direction thereof and bonding the optical function film on a liquid crystal panel. A continuous roll comprises an optical film laminate (15) that is in the form of a continuous web wound into a roll and comprises at least an optical function film (10) and a carrier film (13) releasably placed on the optical function film (10). The optical function film (10) is divided into a plurality of cut pieces by score lines (16) formed along a widthwise direction of the optical film laminate (15). It is possible to resolve the problem by making the bending rigidity per unit longitudinal length of the optical function film fall within a specific range.Type: GrantFiled: August 9, 2011Date of Patent: April 28, 2015Assignee: Nitto Denko CorporationInventors: Satoshi Hirata, Seiji Umemoto, Seiji Kondo, Takuya Nakazono
-
Patent number: 9019608Abstract: An objective of the present invention is to alleviate streaky display unevenness that occurs in liquid crystal display elements when feeding optical function film from a continuous roll having score lines in the width direction thereof and bonding the optical function film on a liquid crystal panel. A continuous roll comprises an optical film laminate (15) that is in the form of a continuous web wound into a roll and comprises at least an optical function film (10) and a carrier film (13) releasably placed on the optical function film (10). The optical function film (10) is divided into a plurality of cut pieces by score lines (16) formed along a widthwise direction of the optical film laminate (15). It is possible to resolve the problem by making the bending rigidity per unit longitudinal length of the optical function film fall within a specific range.Type: GrantFiled: August 9, 2011Date of Patent: April 28, 2015Assignee: Nitto Denko CorporationInventors: Satoshi Hirata, Seiji Umemoto, Seiji Kondo, Takuya Nakazono
-
Publication number: 20150092173Abstract: The illumination optical system for illuminating an illumination target surface with light from a light source is provided with a polarization converting member which converts a polarization state of incident light to form a pupil intensity distribution in a predetermined polarization state on an illumination pupil of the illumination optical system; and a phase modulating member which is arranged in the optical path on the illumination target surface side with respect to the polarization converting member and which transmits light from the pupil intensity distribution so as to convert linearly polarized light thereof polarized in a first direction, into required elliptically polarized light and maintain a polarization state of linearly polarized light polarized in a second direction (X-direction or Y-direction) obliquely intersecting with the first direction, in order to reduce influence of retardation caused by a subsequent optical system between the polarization converting member and the illumination targeType: ApplicationFiled: December 8, 2014Publication date: April 2, 2015Inventor: Koji SHIGEMATSU
-
Publication number: 20150086156Abstract: A reinforced multi-body optical device that in one embodiment includes a multi-body optical device having a thickness that is less than or equal to about 1.0 millimeter and a supporting plate bonded without epoxy to the multi-body optical device. In an embodiment the supporting plate has a coefficient of thermal expansion (CTE) that is within about 0.5 parts per million of the CTE of the multi-body optical device.Type: ApplicationFiled: December 1, 2014Publication date: March 26, 2015Inventors: Fan CHEN, Maofeng GU, Fahua LAN, Huiping LI
-
Publication number: 20150043073Abstract: A production method for producing a thin circularly polarizing plate at a high productivity is provided.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Mitsutaka SASE, Nobuyuki HATANAKA
-
Publication number: 20150002936Abstract: Disclosed is a display device. The display device includes a display panel, which includes a display area and a non-display area surrounding the display area, and a panel driver connected to the display panel in the non-display area of the display panel. The display panel includes an outer substrate configured to include a gate line and a data line that intersect with each other, an inner substrate coupled to a bottom of the outer substrate, and a reflection reduction member formed on the outer substrate to overlap at least one selected from the gate line and the data line, and configured to reduce a reflectivity of external light by a line.Type: ApplicationFiled: July 1, 2014Publication date: January 1, 2015Inventors: Sahng Ik JUN, Hong Man MOON
-
Publication number: 20140361152Abstract: A polarization control device includes a first wave plate having a first surface profile and a second wave plate having a second surface profile complimentary to the first surface profile. The optical axis of the first wave plate is orthogonal to the optical axis of the second wave plate. The first wave plate and the second wave plate are positioned to align the first surface profile with the second surface profile and maintain a constant thickness across the polarization control device. The first wave plate and the second wave plate may control polarization rotation as a continuous function of transverse position across a pupil plane of an optical system. The first wave plate and the second wave plate are separated by a sufficiently small distance so as to limit wave front distortion below a selected level.Type: ApplicationFiled: June 4, 2014Publication date: December 11, 2014Inventors: Ivan Maleev, Donald Pettibone
-
Publication number: 20140353618Abstract: Optical films, and organic-light-emitting display apparatuses, include a high refractive index pattern layer including a first surface and a second surface facing each other. The first surface includes a pattern having grooves. The grooves each have a curved surface and a depth greater than a width. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. Further included is a low refractive index pattern layer formed of a material having a refractive index smaller than that of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling grooves. A tilt angle, ?, of each groove satisfies the following condition, 15°???75°.Type: ApplicationFiled: November 25, 2013Publication date: December 4, 2014Applicants: SAMSUNG ELECTRONICS CO., LTD., CHEIL INDUSTRIES INC., SAMSUNG CORNING PRECISION MATERIALS CO., LTD.Inventors: Hong-shik SHIM, Chul-Ho JEONG, Eun-Young CHO, You-Min SHIN, Eui-Soo KIM, Young OH, Hyun-Min KIM
-
Publication number: 20140347609Abstract: A display apparatus is provided. The display apparatus comprises a liquid crystal display device, a first polarizer and a diffractive optical element. The first polarizer is disposed on a light emitting side of the liquid crystal display device. An azimuth angle of a polarizing direction of the first polarizer is 90 degrees. The diffractive optical element is disposed on the light emitting side of the liquid crystal display device and comprises at least a first diffraction grating. An azimuth angle of a grating direction of the first diffraction grating is 10±30 degrees or 85±25 degrees.Type: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Inventors: Wang-Yang Li, Ting-I Wu
-
Publication number: 20140340749Abstract: In a display apparatus, image light emitted from an image forming device is incident on an image light incidence portion of a light guide member after being diffracted by a second diffractive optical element, and emitted from an image light emission portion after moving forward in the light guide member. The image light emitted from the image light emission portion is diffracted by a first diffractive optical element and reaches the eyes of an observer. On a position where unnecessary external light is made incident on the light guide member, an external light noise reduction element which has a polarizing member and the like is provided. For this reason, even when the unnecessary external light is made incident on the light guide member, it is possible to inhibit the unnecessary external light from reaching the eye of the observer.Type: ApplicationFiled: May 14, 2014Publication date: November 20, 2014Applicant: SEIKO EPSON CORPORATIONInventors: Fumika YAMADA, Masatoshi YONEKUBO, Osamu YOKOYAMA
-
Patent number: 8867132Abstract: Thermochromic filters use combinations of absorptive, reflective, thermoabsorptive, and thermoreflective elements covering different portions of the solar spectrum, to achieve different levels of energy savings, throw, shading, visible light transmission, and comfort. Embodiments include stopband filters in the near-infrared spectrum.Type: GrantFiled: October 29, 2010Date of Patent: October 21, 2014Assignee: Ravenbrick LLCInventors: Wil McCarthy, Richard M. Powers
-
Patent number: 8861084Abstract: A polarization-modulating optical element consisting of an optically active crystal material has a thickness profile where the thickness, as measured in the direction of the optical axis, varies over the area of the optical element. The polarization-modulating optical element has the effect that the plane of oscillation of a first linearly polarized light ray and the plane of oscillation of a second line early polarized light ray are rotated, respectively, by a first angle of rotation and a second angle of rotation, with the first angle of rotation and the second angle of rotation being different from each other.Type: GrantFiled: August 28, 2008Date of Patent: October 14, 2014Assignee: Carl Zeiss SMT AGInventors: Damian Fiolka, Markus Deguenther
-
Patent number: 8792161Abstract: An optical polarizer positioned before a light source for use in semiconductor wafer lithography including an array of aligned nanotubes. The array of aligned nanotubes cause light emitted from the light source and incident on the array of aligned nanotubes to be converted into polarized light for use in the semiconductor wafer lithography. The amount of polarization can be controlled by a voltage source coupled to the array of aligned nanotubes. Chromogenic material of a light filtering layer can vary the wavelength of the polarized light transmitted through the array of aligned nanotubes.Type: GrantFiled: February 21, 2007Date of Patent: July 29, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Bruno M. LaFontaine, Ryoung-Han Kim, Harry J. Levinson, Uzodinma Okoroanyanwu
-
Patent number: 8771530Abstract: A method for producing a polarizing element includes: forming particulate materials of a metal halide on a glass substrate; forming a protective film that covers the particulate materials in a non-plasma environment; stretching the particulate materials by heating and stretching the glass substrate; and forming acicular metal particles by reducing the metal halide constituting the stretched particulate materials.Type: GrantFiled: February 22, 2013Date of Patent: July 8, 2014Assignee: Seiko Epson CorporationInventor: Yoshitomo Kumai
-
Publication number: 20140168773Abstract: The present invention relates to the field of 3D display technology and provides a polarizer, manufacturing method thereof, and a 3D display device. According to the present invention, a transition layer is provided between an alignment layer and a supporting layer, and there is excellent wettability between the transition layer and the supporting layer as well as the alignment layer. The polarizer comprises a polarizing layer for producing linearly polarized light, a supporting layer located at one side of the polarizing layer, a transition layer arranged on one side of the supporting layer away from the polarizing layer, an alignment layer arranged on one side of the transition layer away from the polarizing layer, and an optical rotation layer arranged on one side of the alignment layer away from the polarizing layer.Type: ApplicationFiled: December 6, 2013Publication date: June 19, 2014Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hua Huang, Shi Shu
-
Publication number: 20140168544Abstract: In relation to a sheet having linearly polarized light eliminating function that is disposed on the viewing side of a polarizing film and eliminates linearly polarized light that has traversed the polarizing plate, proposed is a novel sheet having linearly polarized light eliminating function, allowing a layer having linearly polarized light eliminating function to be thinned, and furthermore, allowing manipulability when pasting the sheet to be satisfactory. Proposed is a transparent double-sided adhesive sheet provided with a adhesive layer on both front and back sides and provided with a layer having a linearly polarized-light-eliminating function (referred to as “linearly polarized-light-eliminating functional layer”) as a middle layer, and the thickness of the linearly polarized-light-eliminating functional layer being within the range of 1 ?m to 40 ?m and smaller than the thickness of the adhesive layer on either the front or the back or the adhesive layers on both front and back sides.Type: ApplicationFiled: June 27, 2012Publication date: June 19, 2014Applicant: MITSUBISHI PLASTICS, INC.Inventor: Kahoru Niimi
-
Patent number: 8730576Abstract: The present invention provides a micro-retarder film for a 2D/3D image switchable display. The micro-retarder film comprises a first homogenous layer, a microstructure phase layer with a plurality of retarder patterns formed on the first homogenous layer alternately, and a second homogenous layer formed on the microstructure phase layer.Type: GrantFiled: January 25, 2012Date of Patent: May 20, 2014Assignee: Futis International Ltd.Inventor: Jung-Tsung Wu
-
Publication number: 20140132894Abstract: Disclosed is a flexible display device capable of preventing a bending phenomenon occurring in a high-temperature and high-humidity state, by preventing water from being introduced thereinto, by forming a barrier layer formed of acryl instead of the conventional tri-acetyl cellulose (TAC) film, on the surface of a polarizing device, the barrier layer having a low coefficient of humidity expansion and a low coefficient of thermal expansion. The flexible display device comprises: a display panel configured to output an image; and a polarizing plate attached to an upper surface of the display panel, wherein the polarizing plate comprises: a polarizing device; and a barrier layer formed of an acryl-based resin, and formed on one surface of the polarizing device.Type: ApplicationFiled: September 11, 2013Publication date: May 15, 2014Applicant: LG Display Co., LtdInventors: SeungMin Lee, SungJin Park, JunHo Yeo
-
Publication number: 20140126051Abstract: There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided.Type: ApplicationFiled: January 7, 2014Publication date: May 8, 2014Applicant: Lumus Ltd.Inventors: Yaakov Amitai, Mali Hadad, Naamah Friedmann
-
Publication number: 20140125924Abstract: A liquid crystal display includes a liquid crystal panel, a polarizing plate on a surface of the liquid crystal panel and having a polarizing axis; and a compensation film between the liquid crystal panel and the polarizing plate, and having an optical axis at which light passes through the compensation film. When a surface of the compensation film is referred to as a x-y plane, a plane passing through an x-axis and vertical to the optical axis of the compensation film is referred to as an x-y? plane. A first retardation value (Ro?) of the compensation film is (nx?ny?)d, and a second retardation value (Rth?) is [(nx+ny?)/2?nz?]d, and the first and second retardation values (Ro?) and (Rth?) satisfy the following Formula of 0.92?Rth?/Ro??4.75, where ‘n’ denotes a refractive index and ‘d’ denotes a thickness of the compensation film in a z-axis direction.Type: ApplicationFiled: April 5, 2013Publication date: May 8, 2014Applicant: Samsung Display Co., Ltd.Inventors: Min Oh CHOI, Hee Wook DO, Kyeongha KIM, Duckjong SUH, Tecksoo KIM, Seungbeom PARK, Sang-Gu LEE
-
Patent number: 8717518Abstract: The present invention relates to a polarizer having an antistatic layer and a liquid crystal display. The present invention may provide a polarizer which may prevent malfunction of devices by static electricity generated in preparation or use procedures even without using the ITO layer conventionally formed between the upper glass substrate of a liquid crystal panel and a polarizer in a liquid crystal display for an antistatic purpose, and has excellent physical properties such as endurance reliability under high temperature or high humidity condition and optical characteristics, and a liquid crystal display thereof.Type: GrantFiled: July 17, 2009Date of Patent: May 6, 2014Assignee: LG Chem, Ltd.Inventors: Se Ra Kim, Soon Hwa Jung, Kee Young Kim, Sung Su Kim, Kyung Ki Hong, Hyo Jin Jeong, Eun Sang Yoo, In Cheon Han, Yeong Rae Chang, Ju Young Kim
-
Patent number: 8711479Abstract: A polarization-modulating optical element consisting of an optically active crystal material has a thickness profile where the thickness, as measured in the direction of the optical axis, varies over the area of the optical element. The polarization-modulating optical element has the effect that the plane of oscillation of a first linearly polarized light ray and the plane of oscillation of a second linearly polarized light ray are rotated, respectively, by a first angle of rotation and a second angle of rotation, with the first angle of rotation and the second angle of rotation being different from each other.Type: GrantFiled: March 13, 2013Date of Patent: April 29, 2014Assignee: Carl Zeiss SMT GmbHInventors: Damian Fiolka, Markus Deguenther
-
Publication number: 20140092330Abstract: A polarizing adhesive element includes a pressure sensitive adhesive (“PSA”), a compensating film, a polarizing film, a supporting film and an optical clear adhesive (“OCA”). The PSA has adhesion. The compensating film is disposed on the PSA. The compensating film is configured to compensate a phase difference of a light. The polarizing film is disposed on the compensating film. The polarizing film is configured to polarize the light. The supporting film is disposed on the polarizing film. The supporting film supports the polarizing film. The OCA is disposed on the supporting film. The OCA has adhesion.Type: ApplicationFiled: March 15, 2013Publication date: April 3, 2014Applicant: Samsung Display Co., Ltd.Inventor: SE-JOON OH
-
Patent number: 8679376Abstract: A polarization film, including a polymer resin, and a dichroic dye dispersed in the polymer resin and represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, Ar, R1 to R4 are the same as those defined in the detailed description.Type: GrantFiled: March 7, 2013Date of Patent: March 25, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Joo Lee, Deuk-Kyu Moon, Jong-Hoon Won, Myung-Man Kim, Myung-Sup Jung
-
Publication number: 20140055856Abstract: A concealing structure to at least partially conceal a sensor, light emitter or other component by at least partially preventing reflection of external light by an underlying structure. In some examples, this function is performed by a two-component masking assembly, the masking assembly including a linear polarizer to cause linear polarization of light which passes from the exterior of the device to an underlying component, and a wave plate to shift the axis of any reflected polarized light. In many cases, a high density optical fluid will further be included within the masking assembly to minimize reflections from the other components of the assembly.Type: ApplicationFiled: October 29, 2013Publication date: February 27, 2014Applicant: Apple Inc.Inventors: David Thomas Amm, James J. Dudley, Peter Henry Mahowald
-
Publication number: 20140001347Abstract: An optical system may include a polarization beam splitter having an input that receives multiple optical signals, a first output and a second output. The first output may provide components of the multiple optical signals having a first polarization. The second output may provide components of the multiple optical signals having a second polarization. The optical system may include a rotator having an input that receives the components to rotate the first polarization such that each of the components has the second polarization, and an output to supply components as rotated components. The optical system may also include an optical circuit including a substrate. The rotator may be separate from the substrate. The optical circuit may include an optical demultiplexer circuit provided on the substrate to receive the rotated components and the components.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: INFINERA CORPORATIONInventors: Radhakrishnan L. NAGARAJAN, Masaki Kato, Jeffrey T. Rahn, Alan C. Nilsson, Kuang-Tsan Wu
-
Publication number: 20130335824Abstract: A polarization film including a polarizer polarizing incident light in a polarization direction and having a first polarization groove recessed from an upper surface of the polarizer and extending in a first direction; a first transparent support at the upper surface of the polarizer; and a second transparent support at a lower surface of the polarizer.Type: ApplicationFiled: March 8, 2013Publication date: December 19, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: Jong-Hwan Cho
-
Publication number: 20130328479Abstract: Provided is an organic light-emitting display device. The organic light-emitting display device includes a display substrate having a base substrate and an organic layer disposed on the base substrate, an optical layer disposed on the display substrate and having a phase-delay film and a polarizing layer disposed on the phase-delay film, and several diffusion modules disposed between the display substrate and the optical layer and disposed separately from each other.Type: ApplicationFiled: March 11, 2013Publication date: December 12, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Woo-Suk Jung, Soon-Ryong Park, Hye-Jung Park, Seok-Gi Baek, Tae-Eun Kim
-
Publication number: 20130301129Abstract: An optical film includes: a polarization layer; a first phase retardation layer having an optic axis at an angle in a range from about 17 degrees to about 27 degrees or from about ?27 degrees to about ?17 degrees with respect to a transmission axis of the polarization layer; and a second phase retardation layer having an optic axis at an angle in a range from about 85 degrees to about 95 degrees with respect to the transmission axis of the polarization layer. The polarization layer, the first phase retardation layer, and the second phase retardation layer are deposited in sequence, the first phase retardation layer is a half-wave plate, the second phase retardation layer is a quarter-wave plate, and out-of-plane retardation values of the first phase retardation layer and the second phase retardation layer for incident light having the standard wavelength have opposite signs.Type: ApplicationFiled: May 10, 2013Publication date: November 14, 2013Inventors: Kyu Yeol IN, Hee Kyung KIM, Won Cheol JUNG, Hyung Jun KIM, Kyoung Ah OH, Moon Yeon LEE, Myung Sup JUNG
-
Publication number: 20130301126Abstract: A polarization converter and polarization conversion systems are provided. The polarization converter and polarization conversion systems include a patterned polarization grating with left hand and right hand polarization grating domains. The polarization grating domains are configured to diffract incident non-polarized light into beams having left and right circular polarization states.Type: ApplicationFiled: May 6, 2013Publication date: November 14, 2013Applicant: The Hong Kong University of Science and TechnologyInventors: Tao DU, Fan FAN, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok
-
Patent number: 8576485Abstract: A method of forming a polarizing material is provided including exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished absorption axis and thus photo-induce polarization, and fixing the induced polarization by polymerization of the dichroic layer. Novel polarizing materials formed thereby are also provided. By selectively exposing regions of the dichroic material to differing activating radiation, different regions with different polarization axes can be created. The polarizing material can also be provided with a coating or coatings to alter the spectral responses, and a stack formed of a plurality if dichroic layers can be provided.Type: GrantFiled: September 28, 2010Date of Patent: November 5, 2013Assignee: The Hong Kong University of Science and TechnologyInventors: Vladimir Markovich Kozenkov, Wing Chiu Yip, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok
-
Publication number: 20130286480Abstract: A retardation plate includes a first substrate, a retardation film disposed on the first substrate, a second substrate larger than the first substrate and covering the retardation film, a third substrate disposed such that the first substrate lies between the second substrate and the third substrate, and an inorganic sealing member air-tightly binding the second substrate and the third substrate together so as to air-tightly enclose the retardation film.Type: ApplicationFiled: April 23, 2013Publication date: October 31, 2013Applicant: Seiko Epson CorporationInventor: Takenori Hirota
-
Publication number: 20130286479Abstract: A polarization recycling structure that can recycle polarized light efficiently; according to its technical means, said polarization recycling structure is provided with an incident end enabling incident of unpolarized light and an outgoing end enabling radiation of vertical polarized light; it comprises: a first optical structure set adjacent to the incident end, a second optical structure adjacent to the outgoing end and a main gap set between the first and second optical structures; it is characterized by that: said first optical structure comprises of a first lens array and a first polarized grating that are arranged from the adjacent incident end to the main gap; said second optical structure comprises of a second polarized grating, a secondary gap, a louvered multi-twist retarder and a second lens array that are arranged from the adjacent main gap to the outgoing end.Type: ApplicationFiled: April 25, 2012Publication date: October 31, 2013Inventors: Tze-Yun Sung, Shin-Gwo Shiue, Sing Wu, Ping-Jung Liu
-
Patent number: 8567215Abstract: A method for producing a polarizing element includes the steps of: forming an island-shaped film of a metal halide on a glass substrate; forming needle-shaped particles of the metal halide by stretching the glass substrate through heating to elongate the island-shaped film; and forming needle-shaped metal particles composed of a metal by reducing the metal halide of the needle-shaped particles, wherein the metal halide is deposited on the glass substrate by a reactive physical vapor deposition method.Type: GrantFiled: March 16, 2012Date of Patent: October 29, 2013Assignee: Seiko Epson CorporationInventor: Yoshitomo Kumai
-
Publication number: 20130266744Abstract: 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.Type: ApplicationFiled: May 31, 2013Publication date: October 10, 2013Inventors: Aiko YAMAMOTO, Satoshi TANAKA, Teruki NIORI, Masato NAGURA, Masaki NORO, Aiko YOSHIDA, Nobutaka FUKAGAWA, Yasukazu KUWAYAMA
-
Patent number: 8549880Abstract: A method for producing a polarizing element includes the steps of: forming a coating film of a metal on a glass substrate; forming an island-shaped film composed of a metal halide on the glass substrate by partially removing the coating film and also halogenating the metal; forming needle-shaped particles of the metal halide by stretching the glass substrate through heating to elongate the island-shaped film; and forming needle-shaped metal particles composed of a metal by reducing the metal halide of the needle-shaped particles.Type: GrantFiled: March 15, 2012Date of Patent: October 8, 2013Assignee: Seiko Epson CorporationInventor: Yoshitomo Kumai
-
Patent number: 8545015Abstract: Provided are photochromic articles including a substrate, a primer layer that includes a first photochromic compound, and a photochromic-dichroic layer over the primer layer that includes a photochromic-dichroic compound. The first photochromic compound and the photochromic-dichroic compound each are selected such that the photochromic-dichroic compound has an unactivated state terminal minimum absorbance wavelength that is less than or equal to the unactivated state terminal minimum absorbance of the underlying first photochromic compound. The present invention also relates to such photochromic articles that further include a topcoat layer over the photochromic-dichroic layer, the topcoat layer including a second photochromic compound that has an unactivated state terminal minimum absorbance wavelength that is less than the unactivated state terminal minimum absorbance wavelength of the underlying photochromic-dichroic compound.Type: GrantFiled: November 15, 2011Date of Patent: October 1, 2013Assignee: Transitions Optical, Inc.Inventors: Anil Kumar, Rachael L. Yoest, Chenguang Li, Delwin S. Jackson, Henry Nguyen
-
Publication number: 20130242394Abstract: A beam transforming element for forming a predetermined light intensity distribution on a predetermined surface on the basis of an incident beam includes a first basic element made of an optical material with optical activity, for forming a first region distribution of the predetermined light intensity distribution on the basis of the incident beam; and a second basic element made of an optical material with optical activity, for forming a second region distribution of the predetermined light intensity distribution on the basis of the incident beam, wherein the first basic element and the second basic element have their respective thicknesses different from each other along a direction of transmission of light.Type: ApplicationFiled: May 8, 2013Publication date: September 19, 2013Applicant: Nikon CorporationInventor: Mitsunori TOYODA
-
Publication number: 20130242483Abstract: There is provided a display apparatus including a display that has a display face on which an image is displayed, a back chassis that is disposed on a side opposite to the display face of the display, and a cover film that is positioned in a state in which the cover film reaches the back chassis from the display face, one end of the cover film being attached to at least a portion of an outer circumferential portion of the display. The display is held by the cover film.Type: ApplicationFiled: March 4, 2013Publication date: September 19, 2013Applicant: SONY CORPORATIONInventor: Takeaki Hirasawa
-
Publication number: 20130235309Abstract: A method for producing a continuous polymer film includes: (1) overlapping and bonding the rear end section of a preceding raw film and the front end section of a following raw film, along a bonding line; and (2) supporting both end sections by means of a plurality of gripping tools and obliquely stretching the bonded raw film while conveying the bonded raw film in order to produce a polymer film. In the bond between the rear end section of the preceding raw film and the front end section of the following raw film, the angle (?1) between the bonding line for the polymer film and the width direction of the polymer film and the angle (?1) between the in-plane slow axis of the polymer film and the width direction of the polymer film fulfill formula (I). |?1??1|?10°??Formula (I):.Type: ApplicationFiled: October 20, 2011Publication date: September 12, 2013Applicant: KONICA MINOLTA , INC.Inventors: Midori Kogure, Takeshi Tanaka
-
Publication number: 20130235306Abstract: An optical display device which includes a display panel, and at least one polarizing film including a polyvinyl alcohol-based resin layer disposed on a viewing side with respect to the display panel, and having an optical arrangement forming a cross-Nicol relationship with regard to polarized light entering the polarizing film from the side of the display panel. The polarizing film is produced to have a thickness of 10 ?m or less, by a method comprising the steps of: forming a polyvinyl alcohol-based resin layer on a resin substrate; stretching the polyvinyl alcohol-based resin layer integrally with the resin substrate; and dyeing the polyvinyl alcohol-based resin layer using a dichroic material. The polarizing film is disposed in the optical display device in a state in which a surface of the polarizing film as a contact surface with the resin substrate during the production thereof is oriented toward a side opposite to the display panel.Type: ApplicationFiled: March 8, 2013Publication date: September 12, 2013Applicant: NITTO DENKO CORPORATIONInventors: Kentaro IKESHIMA, Minoru MIYATAKE, Yuki NAKANO
-
Publication number: 20130215508Abstract: Provided is a polarizing element in which a desired polarization characteristics are achieved and the transmissivity is also good. The polarizing element comprises: a substrate transparent to light having a bandwidth to be used; and a grid pattern made of a translucent material and configured such that a plurality of projection portions continuous in one in-plane direction of said substrate are formed on a surface of the substrate at a pitch smaller than a wavelength of light having a bandwidth to be used, wherein each of the projection portions includes a base portion with a rectangular cross-section and a tapered surface portion formed at a top of the base portion, a fine particle layer made of an inorganic material is laminated on at least one surface of said tapered surface portion, and the fine particle layer does not protrude over a side face of the base portion.Type: ApplicationFiled: February 14, 2013Publication date: August 22, 2013Applicant: DEXERIALS CORPORATIONInventor: Dexerials Corporation
-
Publication number: 20130208198Abstract: The present invention provides a display device comprising a display panel and a conductive pattern, in which the conductive pattern comprises an irregular pattern.Type: ApplicationFiled: October 21, 2011Publication date: August 15, 2013Applicant: LM CHEM, LTD.Inventors: Hyeon Choi, Sujin Kim, Ki-Hwan Kim, Young Jun Hong
-
Publication number: 20130201558Abstract: In order to produce a beam with a zero intensity axial ray or to produce a beam that when focused will produce an image of a doughnut shaped pattern with a zero intensity central point, a beam with a uniform or Gaussian profile is directed to a plurality of transparent plates, arranged in pairs on opposite sides of the beam axis, such that for at least one pair, the plates have a composition and thickness different from each other, and chosen so that the transmitted light has a has a phase difference of half a wavelength for at least three different wavelengths. An additional plate with a center on the perpendicular of the line connecting the first two plates has a composition and thickness such that the light transmitted through that additional plate has a phase difference of a quarter wavelength with respect to the light transmitted through one of the plates of said first pair of plates, at at least one wavelength.Type: ApplicationFiled: March 3, 2013Publication date: August 8, 2013Inventor: Stephen Baer
-
Publication number: 20130170035Abstract: An adhesive for adhering a protective film, the protective film having a water vapor transmission rate of about 100 g/m2·day or less at 40° C. and about 90% RH during manufacture of an optical member including a polarizing plate, a polarizing plate including an adhesive layer prepared from the adhesive, and an optical member including the polarizing plate, the adhesive including a (meth)acrylic copolymer, the (meth)acrylic copolymer having a weight average molecular weight of about 800,000 g/mol or more; a curing agent; and a silane coupling agent, wherein an adhesive layer prepared from the adhesive has a storage modulus, after curing, of about 8×103 Pa or more at about 85° C. and a frequency of about 10?3 rad/s to about 102 rad/s.Type: ApplicationFiled: December 28, 2012Publication date: July 4, 2013Inventors: Ri Ra JUNG, Yi Eun KIM