Diffusing Of Incident Light Patents (Class 359/599)
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Patent number: 9219251Abstract: An organic light emitting display apparatus includes a substrate divided into a first light emission region, and a transmission region adjacent to the first light emission and through which an external light is transmitted, an organic light emitting device on the substrate and in the first light emission region, and including a pixel electrode, an intermediate layer on the pixel electrode and including an organic light emission layer, and an opposite electrode on the intermediate layer; and a light scattering layer on the substrate and in the transmission region, and configured to scatter a light incident thereto from the intermediate layer in the first light emission region.Type: GrantFiled: May 28, 2014Date of Patent: December 22, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seock-Hwan Kang, Jae-Kyoung Kim, Min-Woo Kim, Il-Nam Kim, Sung-Kook Park
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Patent number: 9180609Abstract: This invention discloses a method of forming an uneven structure on a substrate. Cut a plurality of trenches in an order on a surface of a mold through a control system, wherein the plurality of trenches comprise at least one first trench, wherein for any second trench of the at least one first trench, the second trench overlaps with at least one third trench different from the second trench such that the second trench is cut off by the at least one third trench. Use the surface of the mold to emboss a thin film on the substrate to form the uneven structure.Type: GrantFiled: August 26, 2014Date of Patent: November 10, 2015Assignee: UBright Optronics CorporationInventors: Ching-An Yang, Wei-Tai C.-I. Chiu, Han-Tsung Pan, Lung-Pin Hsin, Yu-Mei Juan
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Patent number: 9176264Abstract: There is provided a light diffusing element made of a thin film capable of realizing low back scattering and a high haze. A light diffusing element according to an embodiment of the invention includes: a first region having a first refractive index n1; a refractive index modulation region having a substantially spherical shell shape and surrounding the first region; and a second region having a second refractive index n2, the second region being positioned on a side of the refractive index modulation region opposite to the first region. The light diffusing element satisfies the following expressions (1) and (2): 0.0006??n/L??(1) 10?(?n)2×A×B?100??(2).Type: GrantFiled: September 16, 2011Date of Patent: November 3, 2015Assignee: NITTO DENKO CORPORATIONInventors: Akinori Nishimura, Kozo Nakamura, Hiroyuki Takemoto, Takehito Fuchida, Kazuto Yamagata, Shunsuke Shutou, Tomohito Takita
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Patent number: 9158044Abstract: An optical film having an optically-transparent substrate, and a low refractive index layer having a thickness d on one side of the optically-transparent substrate, a polarizing plate and a display panel provided with the same, and a display provided with the same.Type: GrantFiled: October 13, 2010Date of Patent: October 13, 2015Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Kentaro Akiyama, Seiji Shinohara, Emi Shimano, Hiroshi Nakamura, Mayu Yoki
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Patent number: 9140830Abstract: This disclosure provides systems, methods and apparatus for enhancing the brightness and/or contrast ratio of display devices. In one aspect, the display devices can include an annular diffuser that is configured to scatter light into a ring shaped region. The annular diffuser can include a plurality of axicon lenses or holographic features. The reflective display can include an annular diffuser to shift the direction along which most of the modulated light is scattered away from the direction along which light is specularly reflected by the display devices to reduce specular glare and enhance brightness and/or contrast ratio.Type: GrantFiled: May 5, 2014Date of Patent: September 22, 2015Assignee: QUALCOMM MEMS Technologies, Inc.Inventors: Jian Ma, John Hyunchul Hong, Bing Wen
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Patent number: 9114557Abstract: A diffusion sheet includes a light-transmissive base member, a plurality of structures, and a flattened portion. The light-transmissive base member has a first main surface and a second main surface. The plurality of structures have convex shapes, which are randomly formed on the first main surface. The flattened portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) equal to or lower than 0.6 ?m.Type: GrantFiled: March 11, 2011Date of Patent: August 25, 2015Assignee: Sony CorporationInventors: Jun Sasaki, Akihiro Horii, Naoto Sugawara, Kanako Hashimoto, Takeshi Kondou, Makoto Aoki
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Patent number: 9086520Abstract: To provide an anti-glare sheet for a liquid crystal display device with excellent vivid complexion and blackness and excellent image crispness, that is suitable for combination of dynamic images and still images. An anti-glare sheet for a liquid crystal display device having a diffusion factor in the interior on at least one side of a transparent base material and provided with a functional layer with an irregular surface on the side opposite the transparent base material side, and either having or not having a transparent resin layer with a film thickness of 1.Type: GrantFiled: April 13, 2011Date of Patent: July 21, 2015Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Takashi Kodama, Gen Furui, Makoto Honda
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Publication number: 20150146180Abstract: A method for fabricating a nanoantenna array may include forming a resist layer on a substrate, forming a focusing layer having a dielectric microstructure array on the resist layer, diffusing light one-dimensionally in a specific direction by using a linear diffuser, forming an anisotropic pattern on the resist layer by illuminating the light diffused by the linear diffuser on the focusing layer and the resist layer, depositing a material suitable for a plasmonic resonance onto the substrate and the resist layer on which the pattern is formed, and forming a nanoantenna array on the substrate by removing the resist layer and the material deposited on the resist layer. A light diffusing angle by the linear diffuser and a size of the dielectric microstructure are determined based on an aspect ratio of the pattern to be formed.Type: ApplicationFiled: April 15, 2014Publication date: May 28, 2015Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kyeong Seok LEE, Won Mok KIM, Taek Sung LEE, Wook Seong LEE, Doo Seok JEONG, Inho KIM
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Publication number: 20150138614Abstract: A display system, including: a vehicle windshield; a projector located on the side of a first surface of the windshield and arranged to enable to project an image in the windshield, towards a second surface of the windshield opposite to the first surface, so that the angles of incidence of the rays projected on the second surface are greater than the limiting angle of total reflection of the light on the second surface; and a transmissive diffuser coating an area of the first surface located on the path of the projected rays after at least one reflection on the second surface.Type: ApplicationFiled: November 18, 2014Publication date: May 21, 2015Inventor: Umberto ROSSINI
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Publication number: 20150138487Abstract: An optical sheet (optical member) includes: a sheet-shaped base material 40 that is light-transmissive; an anisotropic light condenser that is formed on the light-receiving surface of the base material where light is received, the anisotropic light condenser having light condensing anisotropy such that incident light is condensed in a light condensing direction along the light-receiving surface whereas light is not condensed in a non-light condensing direction along the light-receiving surface, the non-light condensing direction being perpendicular to the light condensing direction; and an anisotropic light scatterer that is formed on the light-emitting surface from which light is emitted, the light-emitting surface being on a side of the base material opposite to the light-receiving surface of the base member, the anisotropic light scatterer scattering and emitting light from the anisotropic light condenser, and having light scattering anisotropy where light is greatly scattered in the light condensing direcType: ApplicationFiled: July 5, 2013Publication date: May 21, 2015Applicant: Sharp Kabushiki KaishaInventors: Yoshinobu Hirayama, Akira Imai, Shugo Yagi, Toru Inata, Masaki Kageyama, Kazuya Hatta, Masanori Ehara
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Patent number: 9036261Abstract: An optical element using visible light from wavelengths ?S to ?L (?L>?S), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths ?S and ?L. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P?0.8·?S/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8?mS?1.1 and condition (3) 0.8?mL?1.1. The parameters mS and mL, an average height H, the wavelengths ?S and ?L, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·?S/(2·nS)?H?mL·?L/(2·nL).Type: GrantFiled: August 21, 2013Date of Patent: May 19, 2015Assignee: Ricoh Company, Ltd.Inventors: Chieko Hatashita, Takayuki Nakamura, Hiroshi Nakanuma, Kentaroh Hagita
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Publication number: 20150131156Abstract: A display device having a display element, such as a light-emitting device or a light-reflecting device, such as a MEMS device, and a glass touch panel covering the display element, the outer surface of the panel being textured. The panel is thin, having a thickness of 1.Type: ApplicationFiled: January 26, 2015Publication date: May 14, 2015Inventors: Nicholas Francis Borrelli, Sasha Marjanovic, Timothy James Orsley
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Publication number: 20150131155Abstract: A display device includes a first substrate having a display region and a peripheral region, a display structure in the display region, a second substrate parallel to the first substrate, the second substrate including a light scattering structure in the display region, the light scattering structure being configured to scatter light generated in the display structure, and a shielding member adjacent to the light scattering structure.Type: ApplicationFiled: November 5, 2014Publication date: May 14, 2015Inventor: Yong-Koo HER
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Publication number: 20150131154Abstract: The view angle-restricting sheet includes an optically functional layer including: a plurality of first light transmission sections that are rectangular in cross section and arranged in a multi-stripe fashion; and one or more second light transmission section(s) that is/are each arranged between adjacent first light transmission sections. The first light transmission sections contain a light diffusing agent and a resin matrix. The proportion of the surface area occupied by the first light transmission sections with respect to the surface area of the optically functional layer is no less than 5% and no greater than 40%. The ratio (T1/W1) of the thickness (T1) to the width (W1) of the first light transmission section is preferably no less than 4 and no greater than 40. The average distance between adjacent first light transmission sections is preferably no less than 6 ?m and no greater than 400 ?m.Type: ApplicationFiled: April 22, 2013Publication date: May 14, 2015Inventor: Takahiro Tsuji
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Patent number: 9031113Abstract: The invention relates to an optical resonator, laser apparatus and a method of generating a laser beam inside an optical resonator. The optical resonator (100) includes an optical cavity (102) and an optical element (104.1, 104.2) at either end thereof, operable to sustain a light beam (108) therein, characterized in that each optical element (104.1, 104.2) is a phase-only optical element operable to alter a mode of the beam (108) as it propagates along the length of the optical resonator (100), such that in use the beam (108) at one end of the optical resonator (100) has a Gaussian profile while the beam (108) at the other end of the optical resonator (100) has a non-Gaussian profile.Type: GrantFiled: April 29, 2010Date of Patent: May 12, 2015Assignee: CSIRInventors: Ihar Anatolievich Litvin, Andrew Forbes
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Publication number: 20150124480Abstract: Methods and apparatus for providing one or more components for a display system, particularly for producing diffused light.Type: ApplicationFiled: April 5, 2013Publication date: May 7, 2015Inventors: David Eugene Baker, Michael Etienne, Stephan Lvovich Logunov, Daniel Aloysius Nolan, Wageesha Senaratne, Luis Alberto Zenteno
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Publication number: 20150124188Abstract: A color conversion substrate and liquid crystal display device of the present invention simplify the manufacturing process thereof and reduce deviations in intensity distribution of emitted light. The color conversion substrate includes a transparent substrate having a first main surface, a phosphor layer having a plurality of phosphors arranged along the first main surface and a plurality of transparent first boundary parts formed so as to surround the respective phosphors, and a plurality of first reflective parts formed on the outer peripheral surface of the respective plurality of first boundary parts. The portions of the first boundary parts where the respective first reflective parts are formed are curved, and the curvature thereof is 0.50/d1 to 0.83/d1, where d1 is the thickness of the respective first boundary parts.Type: ApplicationFiled: May 27, 2013Publication date: May 7, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Shinya Kadowaki, Ryuzo Yuki
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Publication number: 20150124315Abstract: A linear Fresnel lens sheet (3) includes: a lens layer (10) having a first surface (11) in which a linear Fresnel lens portion (13), having a number of lens surfaces (14) arranged in a first direction d1, is formed, and a second surface (12) opposite the first surface (11); and a diffusion layer (20) disposed on the side of the second surface (12) of the lens layer (10).Type: ApplicationFiled: November 12, 2014Publication date: May 7, 2015Inventor: Kazuhiro SASAHARA
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Patent number: 9025250Abstract: An antireflection film is provided in which a light scattering property is suppressed. The antireflection film includes, on a surface thereof, a moth-eye structure including a plurality of convex portions such that a width between vertices of adjacent convex portions is no greater than a wavelength of visible light.Type: GrantFiled: April 13, 2010Date of Patent: May 5, 2015Assignee: Sharp Kabushiki KaishaInventors: Kiyoshi Minoura, Takao Imaoku, Akinobu Isurugi
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Publication number: 20150116833Abstract: A microreplicated optical film (919) for use in optical displays, backlights, and the like includes a prismatic layer (950) carried by a substrate (920). In use, the optical film may be combined in a system with other components such that the optical film is positioned between an extended light source (902) and a polarizer (904). In such cases, if the substrate has an appreciable birefringence, a subtle but characteristic colored pattern known as substrate color mura (SCM) may be detected by a user of the system. To reduce or eliminate the SCM with little or no adverse effect on brightness enhancement capabilities of the optical film, the optical film may include an embedded structured surface (933) between the substrate and the prismatic layer. In order to avoid another optical artifact known as sparkle, at least 80% of the embedded structured surface is preferably occupied by features such as defocusing lenslets or random planar facets.Type: ApplicationFiled: April 12, 2013Publication date: April 30, 2015Inventors: Gary T. Boyd, Qingbing Wang, Tri Dinh Pham, Connie L. Johnson
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Patent number: 9016897Abstract: An inductive light-source module including a casing, a substrate, light sources, a circuit board, an infrared sensing device, a bi-incident lens and a control unit is provided. The substrate disposed in the casing includes a carrying surface facing a transparent portion of the casing. The light sources connected to the substrate are disposed on the carrying surface. The infrared sensing device is connected to the circuit board. The bi-incident lens disposed on the transparent portion is located on a light path of each light for scattering visible lights to pass through the transparent portion and transmit to the outside, and converging the infrared from the outside to the infrared sensing device. The control unit is coupled to the light sources and the infrared sensing device to drive the light sources to emit the visible lights according to a sensing signal generated by the infrared sensing device when sensing the infrared.Type: GrantFiled: January 15, 2014Date of Patent: April 28, 2015Assignee: Cal-Comp Electronics & Communications Company LimitedInventors: Hsiu-Chi Huang, Chih-Feng Lin, Chun-Min Wang, Yueh-Feng Lin
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Publication number: 20150109545Abstract: A terminal includes: a processor; a memory for storing instructions executable by the processor; and a touch panel including a transparent cover plate, an indium tin oxide (ITO) film, and a liquid crystal display (LCD) module; wherein the transparent cover plate is attached to the LCD module; and the ITO film is provided with patterns configured to diffuse light and is attached to the transparent cover plate, an attaching position being located in a button region of the terminal.Type: ApplicationFiled: August 28, 2014Publication date: April 23, 2015Inventors: Yuan Gao, Hongzhi Jin, Gaocai Han
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Publication number: 20150103338Abstract: A method of evaluating an image blur of an optical film includes displaying a test pattern by driving an organic light-emitting display apparatus including the optical film, obtaining an image by capturing the test pattern using a digital camera, obtaining a spatial luminance distribution from the image, transforming the spatial luminance distribution into a sensation curve, and estimating a blur width from the sensation curve, where the blur width is a distance between peaks having negative minimum values, from among a plurality of peaks of the sensation curve.Type: ApplicationFiled: October 14, 2014Publication date: April 16, 2015Inventors: Hyunmin KIM, Youmin SHIN, Hongshik SHIM, Young OH, Chulho JEONG, Eunyoung CHO
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Publication number: 20150102325Abstract: An optical sheet includes a transparent substrate. The optical sheet further includes light-scattering elements randomly and nonperiodically distributed in the transparent substrate. Each light-scattering element of the light scattering elements includes a binding-material member and light-scattering particles dispersed in the binding-material member. A weight percent calculated from dividing a total weight of light-scattering particles of the light-scattering elements by a total weight of the light-scattering elements is in a range of 5 wt % to 40 wt %.Type: ApplicationFiled: October 8, 2014Publication date: April 16, 2015Inventors: Jae-Ik LIM, Won-Sang PARK
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Publication number: 20150097166Abstract: Various embodiments may relate to a process for producing a scattering layer for electromagnetic radiation. The process may include applying scattering centers onto a carrier, applying glass onto the scattering centers, and liquefying of the glass so that a part of the liquefied glass flows between the scattering centers toward the surface of the carrier, in such a way that a part of the liquefied glass still remains above the scattering centers.Type: ApplicationFiled: April 11, 2013Publication date: April 9, 2015Inventors: Daniel Steffen Setz, Manfred Deisenhofer, Angela Eberhardt, Christina Wille
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Patent number: 8999463Abstract: An anti-dazzling laminate made of an optical laminate including a light transparent base material and an anti-dazzling layer having a concavoconvex shape provided on the material. The laminate simultaneously satisfies formulae: 0?G100?15 (I), 0.1?Hs?5.0 (II), 0.3?Rz?1.8 (III) wherein G100 represents a scintillation value which is a standard deviation of a variation in brightness distribution at a resolution of 100 ppi measured on the surface of the laminate; Hs represents the surface haze value of the laminate; and Rz represents the average roughness of the concavoconvex shape of the anti-dazzling layer.Type: GrantFiled: March 29, 2006Date of Patent: April 7, 2015Assignee: Dai Nippon Printing Co., Ltd.Inventors: Koichi Mikami, Yukimitsu Iwata, Yoshihiro Nishimura, Takashi Kodama
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Patent number: 9001424Abstract: An optical film composite includes a brightness enhancement element and a light diffusion element, wherein the light diffusion element includes a substrate with a light diffusion layer on at least one side thereof, and wherein the light diffusion element has a haze of no less than 98% as measured according to JIS K7136 standard method.Type: GrantFiled: October 26, 2010Date of Patent: April 7, 2015Assignee: Eternal Materials Co., Ltd.Inventors: Yu-Ming Sun, Shih-Jung Chen, Chin-Yi Liao, Pei-Hsin Chen
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Publication number: 20150092276Abstract: A light diffusion reflecting plate having a high degree of whiteness and excellent light diffusion properties and antiglare properties includes a substrate having thereon at least a ground coat layer and a top coat layer in contact with this ground coat layer. The ground coat layer is a white coating film layer. The top coat layer contains a white pigment from 2 to 15% by mass and two kinds of spherical particles, i.e., (A) a spherical particle having an average particle size of from 5 to 30 ?m and (B) a spherical particle having an average particle size of from 15 to 45 ?m, each of which is contained in an amount of from 5 to 17% by mass. A difference in the average particle size between the spherical particle (A) and the spherical particle (B) is 10 ?m or more.Type: ApplicationFiled: May 22, 2013Publication date: April 2, 2015Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Katsuhiro Miyake, Takuya Echigo, Toshihiro Kano
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Patent number: 8995060Abstract: A head-up display device includes an image module, a substrate, and an optical film. The image module has an emitting source, wherein the emitting source transmits at least one image. The substrate is disposed corresponding to the image module. The optical film is disposed on the substrate and includes at least one transmission layer, wherein each transmission layer has a plurality of transmitting column structures obliquely arranged side by side, and a longitudinal direction of the transmitting column structure has a tilt angle with respect to a normal of the substrate. The at least one image is transmitted to the optical film, and the obliquely disposed transmitting column structures cause the at least one image to scatter on the optical film.Type: GrantFiled: December 26, 2012Date of Patent: March 31, 2015Assignee: National Applied Research LaboratoriesInventors: Wen-Hao Cho, Bo-Huei Liao, Donyau Chiang, Cheng-Chung Lee
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Patent number: 8992029Abstract: To provide an illumination device and a projection type image display device that illuminate an area to be illuminated (image formation area) under conditions where speckle noise is less noticeable. An illumination device according to the present invention includes: a light source 11 that emits coherent light; an optical scanning section 15 that scans the coherent light emitted from the light source 11; a lens array 22 including a plurality of element lenses and configured to diverge the light scanned by the optical scanning section; an optical path conversion system 23 configured to control a diverging angle of the diverging light to be emitted from respective points of the lens array 22 and to allow the diverging light whose diverging angle has been controlled to illuminate an area to be illuminated sequentially in an overlapping manner.Type: GrantFiled: April 23, 2012Date of Patent: March 31, 2015Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yukio Taniguchi, Makio Kurashige, Yasuyuki Ooyagi
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Publication number: 20150085470Abstract: There is provided an optical sheet which can prevent problems when it is superimposed on another member. The optical sheet includes: a sheet-like base layer; a light control layer having unit shaped elements arranged in a direction parallel to a sheet surface of the base layer; and a light diffusing layer disposed between the base layer and the light control layer. The light diffusing layer includes a binder resin portion and particles dispersed in the binder resin portion. The particles in the binder resin portion include a single particle and an aggregate formed of aggregated single particles.Type: ApplicationFiled: December 4, 2014Publication date: March 26, 2015Inventors: Takayuki SHIMADA, Fumihiro ARAKAWA, Satoshi GOISHIHARA, Hiroshi KOJIMA, Runa NAKAMURA, Akinobu USHIYAMA, Satoko MAENISHI, Kazuki TANAKA, Akiko TOMITA
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Publication number: 20150085494Abstract: A light-diffusing layer is provided for diffusing incident light by diffracting at least a portion of the incident light, and the diffuse light diffused by the light-diffusing layer is diffused about a direction different from the emission direction of non-diffused light that passes through the light-diffusing layer without being diffused.Type: ApplicationFiled: July 30, 2013Publication date: March 26, 2015Inventor: Yasuhisa Inada
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Patent number: 8988634Abstract: An optical film is provided. According to an embodiment, the optical film may include a base material layer, a first layer disposed on the base material layer and having a first oxide and at least one bead, and a second layer disposed on the first layer and having a second oxide and a mineral pigment.Type: GrantFiled: October 12, 2011Date of Patent: March 24, 2015Assignee: LG Electronics Inc.Inventors: Weonwoong Lee, Haechon Song
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Publication number: 20150075025Abstract: An optical module is provided, including a substrate (1) of a defined shape, the substrate having two surfaces (1a, 1b) opposite from each other and an edge (1c). A layer (2) covers at least one of the surfaces (1a, 1b) of the substrate (1). The layer (2) includes a transparent polymeric material and has at least one optical element (3) which scatters rays of light originating from the substrate and passing through the optical element (3). A design feature for at least one of mounting and aligning (4, 5) the optical module is provided in a mounting region of the layer and is the same material and the same part as the layer (2).Type: ApplicationFiled: March 21, 2013Publication date: March 19, 2015Applicant: Heraeus Noblelight GmbHInventors: Michael Peil, Susanne Schadt, Harald Maiweg, Marcus Helmling
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Patent number: 8982468Abstract: A voided diffuser and an optical construction incorporating the voided diffuser are provided. The voided diffuser includes a plurality of beads and a binder composition in contact with the plurality of beads. The binder composition includes a binder and a plurality of interconnected voids. The optical construction includes the voided diffuser disposed on a substrate.Type: GrantFiled: October 22, 2010Date of Patent: March 17, 2015Assignee: 3M Innovative Properties CompanyInventors: Jason S. Petaja, William F. Edmonds, Adam D. Haag, Eric W. Nelson, Encai Hao, William Blake Kolb, Fei Lu, Richard J. Pokorny
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Patent number: 8974105Abstract: A planar ion-exchanged glass sheet for out-of-plane light beam coupling includes a first surface, a ion-exchanged first glass region adjacent and parallel to the first surface, a core glass region adjacent and parallel to the first glass region, a ion-exchanged second glass region adjacent and parallel to the core glass region, and a second surface adjacent and parallel to the second glass region. One edge of the glass sheet has an angled end face that is inclined to the plane extends across a thickness of at least one of the glass regions. Methods of making the planar ion-exchanged glass sheet, coupling an out-of-plane light beam into a plane using the planar ion-exchanged glass sheet, and scattering the coupled light to illuminate at least select regions of an exposed surface of the glass sheet are also disclosed.Type: GrantFiled: July 10, 2014Date of Patent: March 10, 2015Assignee: Corning IncorporatedInventors: Vitor Marino Schneider, Alana Marie Whittier
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Publication number: 20150062492Abstract: A light control film (light control member) includes a light transmissive base, a plurality of light shielding portions scattered over one surface of the base, and a light diffusing portion formed on the one surface of the base in a region other than regions in which the light shielding portions are formed. The light diffusing portion has a light exit end face and a light incident end face having a larger area than the light exit end face, and the height of the light diffusing portion is greater than the thickness of the light shielding portions. At least part of the opening of at least some of a plurality of air-cavities has a protrusion which is formed of a portion of the light diffusing portion that projects toward the inner side of the opening.Type: ApplicationFiled: April 8, 2013Publication date: March 5, 2015Inventors: Emi Yamamoto, Toru Kanno, Tsuyoshi Maeda
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Publication number: 20150062712Abstract: An optical element includes an element main body and a plurality of sub-wavelength structures that is provided on a surface of the element main body. The sub-wavelength structures include an energy-ray-curable resin composition, and the element main body is opaque to energy rays for curing the energy-ray-curable resin composition. The surface, on which the plurality of sub-wavelength structures is provided, has a section in which scattered light is generated by scattering incident light, and intensity distribution of the scattered light is anisotropic.Type: ApplicationFiled: March 8, 2013Publication date: March 5, 2015Applicant: Sony CorporationInventors: Hiroshi Tazawa, Kazuya Hayashibe
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Publication number: 20150055326Abstract: This invention relates to a complex prism sheet which is configured such that heat-resistant coating layers are formed on both surfaces of a substrate layer, thus preventing wrinkling or curling of the complex prism sheet due to heat generated from a light source, and increasing concealment and electro-optic characteristics, ultimately improving properties of a light crystal display. This complex prism sheet can be usefully applied to television (TV) sets, monitors, notebook personal computers (NBPCs), etc., which are required to have heat resistance, slimness and concealment because of an increasing use of a light emitting diode (LED) light source these days.Type: ApplicationFiled: December 6, 2012Publication date: February 26, 2015Applicant: KOLON INDUSTRIES, INC.Inventors: Chang Won Park, Chang Pyo Hong, Kyung Jong Kim, Tae Kyung Kim, Eui Young Shin, Hong Gu Hwang
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Publication number: 20150055061Abstract: A transflective display includes a substrate, a partially absorbing layer arranged on the substrate, a reflection layer arranged on the partially absorbing layer opposite to the substrate, and an emissive layer arranged on the reflection layer opposite to the partially absorbing layer. The emissive layer includes a plurality of light-emitting elements that emit light of at least one color and a dye of a color other than the at least one color of the plurality of light-emitting elements. The reflection layer is arranged to reflect some light from the emissive layer back into the emissive layer.Type: ApplicationFiled: March 15, 2013Publication date: February 26, 2015Inventors: Duncan Robert Johnston, Christopher James Newton Fryer
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Publication number: 20150049388Abstract: The view angle-restricting sheet according to the present invention includes an optically functional layer which includes: a plurality of first light transmission sections that are rectangular in cross section and arranged in a multi-stripe fashion; and at least one second light transmission section that is/are rectangular in cross section and arranged between the first light transmission sections, at least one of the lateral face of the first light transmission section and the lateral face of the second light transmission section that face each other being provided as a light-scattering surface having a microstructure including fine protrusions. The arithmetic mean roughness (Ra) of the light-scattering surface is preferably no less than 1.5 ?m and no greater than 4 ?m. The ratio (Rz/Ra) of the ten-point mean roughness (Rz) to the arithmetic mean roughness (Ra) of the light-scattering surface is preferably no less than 1 and no greater than 20.Type: ApplicationFiled: March 27, 2013Publication date: February 19, 2015Applicant: KEIWA INC.Inventor: Takahiro Tsuji
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Publication number: 20150049321Abstract: Illumination optical unit for illuminating an object field in a projection exposure apparatus, comprising a first facet mirror with a structure, which has a spatial frequency of at least 0.2 mm?1 in at least one direction, and a second facet mirror, comprising a multiplicity of facets, wherein the facets are respectively provided with a mechanism for damping spatial frequencies of the structure of the first facet mirror.Type: ApplicationFiled: October 31, 2014Publication date: February 19, 2015Inventors: Stig Bieling, Markus Deguenther, Johannes Wangler
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Publication number: 20150043079Abstract: An active diffuser for reducing a speckle in accordance with an embodiment of the present invention includes: an electroactive polymer film having at least one or more scattering patterns; a first transparent electrode coated on one surface of the electroactive polymer film; and a second transparent electrode coated on the other surface of the electroactive polymer film, and a shape of the scattering pattern of the electroactive polymer film is varied by voltage applied through the first transparent electrode and the second transparent electrode.Type: ApplicationFiled: January 30, 2014Publication date: February 12, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Sun-Tak PARK, Bong-Je PARK, Ki-Uk KYUNG, Sung-Ryul YUN, Sae-Kwang NAM
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Publication number: 20150042933Abstract: Provided are a fluorescent substrate that prevents the occurrence of the phenomenon in which the display color becomes faint and a display device provided with the same. A fluorescent substrate 10 includes a substrate 11; pixels 12 provided on the substrate 11; and partitions 13 that partition the pixels 12, wherein each of the pixels 12 includes at least a red sub-pixel 12R that performs display of red light; a blue sub-pixel 12B that performs display of blue light; and a third color sub-pixel that performs display of third color light different from the two colors, and wherein a distance between the red sub-pixel 12R and the blue sub-pixel 12B is greater than a distance between other sub-pixels.Type: ApplicationFiled: March 5, 2013Publication date: February 12, 2015Applicant: Sharp Kabushiki KaidshaInventors: Shun Ueki, Masahiro Tsujimoto, Kazuyoshi Sakuragi, Tsuyoshi Kamada, Shohei Katsuta, Daisuke Shinozaki
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Publication number: 20150042935Abstract: A light control film includes a light shielding layer and a light diffusion portion, and, when an area of a part where the light shielding layer is in contact with one surface of the base material is set to S1, and an area of a part where a low refractive index portion is exposed between light incidence end surfaces is set to S2, the light shielding layer and the light diffusion portion are formed so as to satisfy (S1?S2)/S1×100?50.Type: ApplicationFiled: March 15, 2013Publication date: February 12, 2015Inventors: Emi Yamamoto, Tsuyoshi Maeda, Toru Kanno
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Publication number: 20150043221Abstract: An optical film, a display device including the same, and a method of manufacturing the optical film, the film including a first refractive index layer including a plurality of protrusions; a second refractive index layer covering the plurality of protrusions, the second refractive index layer having a refractive index that is different from a refractive index of the first refractive index layer; and a support layer on the first refractive index layer or the second refractive index layer, wherein a ratio of a height to a width of the protrusion is 0.5 or more.Type: ApplicationFiled: July 3, 2014Publication date: February 12, 2015Inventors: Duk Jin LEE, Nam Seok BAIK, Jang Seok MA, Jung Hee SON, Gyeong-Im LEE, Jung Chul SEO, Seok Il YOON, Chan Hee LEE
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Publication number: 20150042934Abstract: A viewing angle extending film (a light diffusing member) includes a base material with optical transparency, a plurality of light-shielding layers dotted on one surface of the base material, and a transparent resin layer (optically transparent material layer) provided on the one surface of the base material. At least a light-shielding layer, which is part of the plurality of light-shielding layers, has a planar shape surrounded by a first figure and a second figure contained in the first figure or a planar shape surrounded by at least part of the first figure and at least part of the second figure overlaid with the first figure. Hollow portions are provided in a formation region of the light-shielding layers, each hollow portion being shaped so that a cross-sectional area obtained by cutting along a plane parallel to the one surface of the base material is large on the light-shielding layer side and is gradually decreased as being away from the light-shielding layer.Type: ApplicationFiled: March 12, 2013Publication date: February 12, 2015Inventors: Toru Kanno, Emi Yamamoto, Tsuyoshi Maeda
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Publication number: 20150043081Abstract: In a vehicle display device, a transmission-type intermediate image screen is provided with a diffusion layer in which bead diffusion materials are used. A luminous intensity half-value angle of a transmission light distribution angle of the light transmitted through the transmission-type intermediate image screen is ±7.5 to 10 degrees. Given, when a virtual image of a size of about 10 inches is presented 1.7 to 2 meters ahead of a user, that a target value of the resolution of the actual image formed by the transmission-type intermediate image screen is set to be R and that the luminous intensity half-width at half-maximum angle of the transmission light distribution angle of the light transmitted through the diffusion layer is set to be A, a thickness T of the diffusion layer inside the transmission-type intermediate image screen satisfies 0<T?R/(2*tan(A)).Type: ApplicationFiled: October 24, 2014Publication date: February 12, 2015Inventor: Masaru Segawa
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Publication number: 20150043080Abstract: A film for a display device and a method of manufacturing the film, the film including transparent layers; and scattering layers, the transparent layers and scattering layers being alternately arranged with a predetermined cycle, wherein a plurality of patterns are non-periodically formed in an upper surface or a lower surface of the film.Type: ApplicationFiled: May 28, 2014Publication date: February 12, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Ik LIM, Won Sang PARK
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Publication number: 20150036379Abstract: Disclosed are an optical member and a display device including the same. The optical member includes a light conversion layer including a plurality of light conversion particles; and a light diffusion layer including a plurality of light path conversion particles under the light conversion layer.Type: ApplicationFiled: August 8, 2012Publication date: February 5, 2015Applicant: LG INNOTEK CO., LTD.Inventor: Sun Hwa Lee