Polarization By Reflection Or Refraction Patents (Class 359/485.01)
-
Patent number: 12113728Abstract: The disclosure provides methods, a base station and network nodes relating to the assignment of pilot signals to wireless devices. One aspect provides a method including obtaining grouping information grouping one or more of the plurality of wireless devices together based at least in part on clustering information corresponding to each of the plurality of wireless devices and according to one or more clustering criterion, assigning at least one pilot signal to the one or more wireless devices based on the grouping information and transmitting the at least one pilot signal.Type: GrantFiled: February 4, 2019Date of Patent: October 8, 2024Assignee: Telefonaktiebolagget LM Ericsson (Publ)Inventors: Nafiseh Shariati, Hamed Farhadi, Niklas Jaldén
-
Patent number: 12053999Abstract: An optical display body (1) is provided with: a stripe mask (10) that includes a transmission part (T) and a reflection part (R) that is wider than the transmission part, a transmission part and a reflection part which are alternately arranged so as to form a stripe pattern; and a printed body (20) that includes a flattened design (21A) which is a visible image (21B) flattened in a Y direction and which is printed two or more times repeatedly in an X direction. The stripe mask, upon being superimposed on the printed body such that a stripe direction of the stripe mask will be coincident with the X direction of the printed body, allows a visible image to be displayed through the stripe mask.Type: GrantFiled: April 21, 2021Date of Patent: August 6, 2024Assignee: TOPPAN PRINTING CO., LTD.Inventors: Masami Inokuchi, Makoto Maehira
-
Patent number: 11914162Abstract: An eye-tracking system includes two mirrors. A first mirror is positioned to transmit light, received at a first incident angle, reflected off an eye of a user toward a second mirror. The first mirror is also positioned to reflect the light, reflected from the second mirror, at a second incident angle. The second mirror is inclined from the first mirror so that the light transmitted through the first mirror is reflected by the second mirror toward the first mirror at a first reflection angle. The light reflected by the second mirror is reflected by the first mirror toward the second mirror at a second reflection angle greater than the first reflection angle. The eye-tracking system also includes one or more sensors positioned to detect the light reflected by the first mirror and the second mirror for determining a gaze direction of the eye of the user.Type: GrantFiled: August 9, 2022Date of Patent: February 27, 2024Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Evan Mark Richards, Cina Hazegh
-
Patent number: 11874536Abstract: A polarizing plate and an optical display device comprising same are provided. The polarizing plate comprises: a polarizer; and a pattern layer disposed on the upper surface of the polarizer. The pattern layer includes a first resin layer, wherein the first resin layer has one or more intaglio patterns formed on the lower surface thereof. The intaglio pattern has side surfaces, and a first surface and a second surface having different base angles with respect to the maximum width of the intaglio pattern are continuously formed on the side surfaces. The first and second surfaces satisfy Equation 1, and when h1 is a height projected on the first surface and h2 is a height projected on the second surface, among the maximum heights of the intaglio pattern, h1 and h2 satisfy Equation 2.Type: GrantFiled: August 27, 2020Date of Patent: January 16, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Jeong Ho Lee, Dong Ho Wee
-
Patent number: 11846792Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.Type: GrantFiled: September 23, 2021Date of Patent: December 19, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adam D. Haag, Timothy J. Nevitt, Carl A. Stover, Andrew J. Ouderkirk, Robert D. Taylor, Zhaohui Yang
-
Patent number: 11803091Abstract: A display device includes a display region, a peripheral region, a first substrate, a second substrate having a side surface, a liquid crystal layer arranged between the first substrate and the second substrate, a side light source device mounted on a front surface of the first substrate and arranged at a position facing the side surface of the second substrate, and a light reflection film formed on either a side with a back surface of the first substrate or a side with a front surface of the second substrate. The light reflection film covers the entire display region.Type: GrantFiled: June 22, 2022Date of Patent: October 31, 2023Assignee: Japan Display Inc.Inventor: Yuuji Oomori
-
Patent number: 11681367Abstract: A flexure guidance system may be provided for controlling movement of an optical subassembly and/or a connected combiner lens. For instance, the flexure guidance system may include a distal end piece, a proximal end piece, and multiple wire flexures that link the distal end piece to the proximal end piece. The linking wire flexures may be spaced to form an interior cavity between the distal end piece and the proximal end piece. This interior cavity may house various electronic components. One or more actuators in the system may move the electronic components according to input signals along different axes of movement provided by the wire flexures. Various other methods, systems, and computer-readable media are also disclosed.Type: GrantFiled: May 6, 2022Date of Patent: June 20, 2023Assignee: Meta Platforms Technologies, LLCInventor: Ryan Michael Ebert
-
Patent number: 11555096Abstract: A protective window includes a flexible base film and a hard coating layer disposed on the flexible base film. The hard coating layer includes a silicone leveling agent and an inorganic antistatic agent. The coating layer includes an upper area and a lower area disposed between the upper area and the flexible base film, and a density of the inorganic antistatic agent in the lower area is greater than a density of the inorganic antistatic agent in the upper area.Type: GrantFiled: March 4, 2020Date of Patent: January 17, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young-Sang Park, Young Moon Kim, Kicheol Song, Hung Kun Ahn, Kyou Jong Park, Sung Guk An, Jang Doo Lee, Jeong Chul Ho
-
Patent number: 11539031Abstract: A number of new solutions for enhancing the extraction of waveguided mode and suppressing surface plasmon polariton mode in OLEDs are disclosed.Type: GrantFiled: September 4, 2019Date of Patent: December 27, 2022Assignee: REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Stephen R. Forrest, Yue Qu
-
Patent number: 11378844Abstract: Provided are a viewer-side polarizing plate for a liquid crystal display device, and a liquid crystal display device comprising the same, the polarizing plate comprising a polarizer and a protective film formed on a light exit surface of the polarizer, wherein the protective film includes a first primer layer, a protective film substrate, a second primer layer, and a coating layer, which are sequentially laminated on the polarizer, a first protective film satisfies a relation of Equation 1, and the protective film substrate has an in-plane phase difference of 500 nm or less at a wavelength of 550 nm in Equation 2.Type: GrantFiled: September 18, 2017Date of Patent: July 5, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dae Seob Shim, Hyoung Tae Lim, Seong Heun Cho, Se Hyun Park, Bu Keun Oh
-
Patent number: 11347058Abstract: Embodiments provide for a display system that overlays augmented reality (AR) content onto a view of an environment. The display includes a first polarizer that receives light providing a view of the environment (which can be natural light or light generated from another display). The polarized light then passes through a transparent display that emits light forming the AR content. The light emitted by the display and the polarized light of the environment pass through a beam splitter before reaching a selective mirror. The polarized light from the environment passes through the selective mirror while the light from the display is reflected back towards the beam splitter where it is collimated. Moreover, when collimating the light, the beam splitter also reflects the light back towards the selective mirror and changes its polarization so the light can pass through the selective mirror.Type: GrantFiled: July 22, 2019Date of Patent: May 31, 2022Assignee: Disney Enterprises, Inc.Inventors: Quinn Yorklun Jen Smithwick, Scott F. Watson
-
Patent number: 11333890Abstract: A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface.Type: GrantFiled: December 4, 2019Date of Patent: May 17, 2022Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Max Powers
-
Patent number: 11312874Abstract: The present invention relates to an antireflection film including a low refractive index layer and a hard coating layer, the low refractive index layer including: a binder resin containing a crosslinked polymer of a photopolymerizable compound and a polysilsesquioxane substituted with one or more reactive functional groups; and inorganic fine particles dispersed in the binder resin, wherein a 10-point average roughness (Rz) of the shape of irregularities on the surface of the low refractive index layer is 0.05 ?m to 0.2 ?m.Type: GrantFiled: March 9, 2017Date of Patent: April 26, 2022Assignee: LG CHEM, LTD.Inventors: Boo Kyung Kim, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo
-
Patent number: 11314006Abstract: The present specification relates to a method for manufacturing a polarizer and a polarizer manufactured by using the same, and more particularly, to a method for manufacturing a polarizer, which includes a cross-linking and elongating step using an aqueous solution including a polyvalent carboxylic acid compound and a boric acid compound, and a polarizer manufactured by using the same.Type: GrantFiled: September 20, 2018Date of Patent: April 26, 2022Assignee: LG CHEM, LTD.Inventors: Ji Young Kim, Ji Young Kim, Hye Min Yu, Kyun Il Rah, Jin Yong Park, Eungki Lee, Taek Geun Nam
-
Patent number: 11236895Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a light transmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.Type: GrantFiled: July 1, 2020Date of Patent: February 1, 2022Assignee: Apple Inc.Inventors: Bartley K. Andre, Daniel J. Coster, Richard P. Howarth, Daniele de Iuliis, Jonathan P. Ive, Duncan Robert Kerr, Shin Nishibori, Matthew Dean Rohrbach, Douglas B. Satzger, Calvin Q. Seid, Christopher J. Stringer, Eugene Anthony Whang, Rico Zorkendorfer, David Morgenstern, Paul C. L. Chow
-
Patent number: 11061239Abstract: A head-mounted display device for providing augmented reality contents to a wearer includes a light projector and a pancake combiner. The light projector is configured to project a light having a first polarization for rendering images based at least on the augmented reality contents. The pancake combiner is configured to combine the light from the light projector and light from an outside of the head-mounted display device for providing an overlap of the rendered image and a real image that corresponds to the light from the outside of the head-mounted display device. The pancake combiner is also configured to direct the light from the light projector toward a pupil of an eye the wearer.Type: GrantFiled: August 9, 2019Date of Patent: July 13, 2021Assignee: Facebook Technologies, LLCInventors: Douglas Robert Lanman, Jacques Gollier
-
Patent number: 10962692Abstract: The present invention relates to a 3-dimensional complex multilayer structure. The 3-dimensional complex multilayer structure includes a first pattern and a second pattern having different thicknesses formed on one or both surfaces of a plate. The first pattern is selected from the group consisting of parallel lines, parallel curves, parallel zigzag lines, and combinations thereof which do not meet each other. The second pattern is not parallel to the first pattern and is selected from the group consisting of parallel lines, parallel curves, parallel zigzag lines, and combinations thereof which do not meet each other. The interfaces between the first pattern and the second pattern form figures selected from the group consisting of polygons, circles, ellipses, and combinations thereof. The figures are repetitively formed on one or both surfaces of the plate. The 3-dimensional complex multilayer structure includes different complex patterns, whereas a conventional device has a kind of simple pattern.Type: GrantFiled: January 26, 2018Date of Patent: March 30, 2021Assignee: Minuta Technology Co., Ltd.Inventors: Han Eol Lim, Se Jin Choi, Tae Wan Kim, Seung Joon Baek
-
Patent number: 10962697Abstract: A polarizing layer includes a base film and a deformation part provided in an edge of the base film. The deformation part includes first deformation parts formed as the base film is deformed by heat, and at least one second deformation part provided between the first deformation parts adjacent to each other.Type: GrantFiled: September 26, 2017Date of Patent: March 30, 2021Inventors: Geun Woo Yug, Jung Hwa You, Il Young Jeong, Soo Bum Park, Myeong Seok Jeong
-
Patent number: 10859740Abstract: An optical element includes a plurality of stacked birefringent sublayers, such as liquid crystal sublayers, configured to alter a direction of propagation of light passing therethrough according to the Bragg condition. The stacked birefringent sublayers respectively include local optical axes that vary along respective interfaces between adjacent ones of the stacked birefringent sublayers to define respective grating periods. The respective thicknesses of the stacked birefringent sublayers may be less than a wavelength of the light. Related apparatus and methods of operation are also discussed.Type: GrantFiled: July 30, 2015Date of Patent: December 8, 2020Assignee: IMAGINEOPTIX CORPORATIONInventors: Michael J. Escuti, D. Jason Kekas, Ravi K. Komanduri
-
Patent number: 10754073Abstract: Optical stacks including a first reflective polarizer and a partially reflective component are described. The partially reflective component may be a second reflective polarizer or a collimating reflector. The first reflective polarizer has a first average visible light reflectance for light polarized along the first block axis at normal incidence of at least 90 percent and a first average visible light transmittance for light polarized along the first pass axis at normal incidence of at least 85 percent. The second reflective polarizer has a second block axis and a second average visible light reflectance for light polarized along the second block axis at normal incidence being no more than the first average visible light reflectance minus 10 percent. The first and second block axes are not parallel and the first and second reflective polarizers have different f-ratios.Type: GrantFiled: November 21, 2017Date of Patent: August 25, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gilles J. Benoit, Timothy J. Nevitt, Matthew B. Johnson
-
Patent number: 10747003Abstract: An optical system includes a reflective surface, a display adapted to emit image light toward the reflective surface, and a multilayer reflective polarizer disposed proximate the reflective surface. The multilayer reflective polarizer is curved about two orthogonal axes and includes at least one layer that is substantially optically uniaxial at at least one location. The image light is transmitted by the multilayer reflective polarizer after it is first reflected by the multilayer reflective polarizer. A head-mounted display includes a first optical system and a second optical system disposed proximate the first optical system.Type: GrantFiled: April 9, 2019Date of Patent: August 18, 2020Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Timothy L. Wong, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
-
Patent number: 10739588Abstract: A projection apparatus for a head-up display includes an imaging unit designed to produce an image, a projection unit designed to project the image produced by the imaging unit via a projection path onto a projection surface. The projection device includes a convex optical element arranged in the projection path, which is provided with a circular polarizer or is formed as a circular polarizer. The invention further relates to a head-up display having such a projection apparatus and to a corresponding vehicle having such a projection apparatus.Type: GrantFiled: August 17, 2018Date of Patent: August 11, 2020Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Mark Riebe
-
Patent number: 10712486Abstract: Optical stacks including a first reflective polarizer and a partially reflective component are described. The partially reflective component may be a second reflective polarizer or a collimating reflector. The first reflective polarizer has a first average visible light reflectance for light polarized along the first block axis at normal incidence of at least 90 percent and a first average visible light transmittance for light polarized along the first pass axis at normal incidence of at least 85 percent. The second reflective polarizer has a second block axis and a second average visible light reflectance for light polarized along the second block axis at normal incidence being no more than the first average visible light reflectance minus 10 percent. The first and second block axes are not parallel and the first and second reflective polarizers have different f-ratios.Type: GrantFiled: November 21, 2017Date of Patent: July 14, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gilles J. Benoit, Timothy J. Nevitt, Matthew B. Johnson
-
Patent number: 10654982Abstract: The present invention relates to a method for preparing a polarizer protecting film. More specifically, the present invention relates to a method for preparing a polarizer protecting film capable of exhibiting excellent physical and optical properties and of preventing damages of a lower polarizer plate caused by a prism sheet.Type: GrantFiled: October 20, 2017Date of Patent: May 19, 2020Assignee: LG CHEM, LTD.Inventors: Yi Rang Lim, Jun Wuk Park, Kyoung Won Kim, Sung In Kim
-
Patent number: 10649267Abstract: A display device includes a flexible layer, a display unit, a cover layer, and an adhesive member. The flexible layer includes a non-bending portion and a bending portion adjacent to the non-bending portion. The display unit is disposed on the flexible layer. The cover layer is disposed on the display unit. The adhesive member is disposed between the non-bending portion of the flexible layer and the cover layer.Type: GrantFiled: January 5, 2018Date of Patent: May 12, 2020Assignee: InnoLux CorporationInventors: Hsing-Chien Tuan, Chiu-Lien Yang, Kuan-Feng Lee, Yuan-Lin Wu
-
Patent number: 10627618Abstract: A system and method of providing a deformed FAC Lens to a multi-emitter diode bar laser system comprised of a lens holder and FAC lens wherein the FAC Lens is deformed so as to offset or compensate for the inherent smile properties present in a multi-emitter diode bar.Type: GrantFiled: September 3, 2014Date of Patent: April 21, 2020Assignee: TERADIODE, INC.Inventors: Michael Deutsch, Daqing Wang
-
Patent number: 10619068Abstract: A transparent heat shielding and insulating member of the present invention includes a transparent base and a functional layer formed on the transparent base. The functional layer includes an infrared reflecting layer, a primer layer and a protective layer laminated in this order from the transparent base side. The primer layer is formed of a modified polyolefin resin having an acid group or a hydroxyl group, and the protective layer is formed of an ionizing radiation curable resin or a thermosetting resin.Type: GrantFiled: July 8, 2015Date of Patent: April 14, 2020Assignee: Maxell Holdings, Ltd.Inventors: Yoshimasa Mitsumoto, Noriaki Otani
-
Patent number: 10598937Abstract: There is provided an optical system, including a light-transmitting substrate having at least two major surfaces parallel to each other edges, and an optical device for coupling light into the substrate by total internal reflection. The device includes a polarization sensitive reflecting surface.Type: GrantFiled: June 21, 2018Date of Patent: March 24, 2020Assignee: Lumus Ltd.Inventor: Yaakov Amitai
-
Patent number: 10474025Abstract: A display device includes a screen, first and second projectors, a detector, and a controller. The screen has first and second surfaces. The first projector projects a first horizontally non-inverted image as viewed from the first surface. The second projector projects a second horizontally non-inverted image as viewed from the second surface. The detector detects a person viewing the first surface and a person viewing the second surface. The controller controls switching of an operation between the first and second projectors and also performs control, when the detector has detected a person viewing the first surface and a person viewing the second surface, so that the person viewing the first surface and the person viewing the second surface are able to see each other through the screen.Type: GrantFiled: February 23, 2018Date of Patent: November 12, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Masafumi Ono, Tomotaka Matsuyuki, Sayaka Hirose, Yuri Takeuchi
-
Patent number: 10466401Abstract: A backlight module, and a manufacturing method thereof, and a display device are provided. The backlight module includes a backlight source, a light guide plate, at least one optical film, and a multilayer coating; the multilayer coating is provided at at least one side of the at least one optical film; the multilayer coating is configured for decreasing light transmittance of at least one given wavelength; the backlight source is provided at a side of the light guide plate, and configured for providing white light, the light guide plate is configured for guiding the white light toward the optical film, and the white light is emitted out after transmitting through the optical film.Type: GrantFiled: September 19, 2016Date of Patent: November 5, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Ki Man Kim
-
Patent number: 10345598Abstract: An image combiner, also referred to as a combiner optic, of a near-eye display system or the like transmits enough light so a user can see remote objects in a “world view”, while also reflecting enough light so the user can simultaneously see a projected image in a “projected” (augmented) view. The disclosed image combiners use two partial reflectors configured to form a wedged reflective cavity. In the display system, light from an imaging device follows a path to the user's eye that includes three reflections in the wedged cavity. By using this capability of the wedged cavity, the combiner optic can have a substantially reduced thickness, and lower profile, than a combiner optic that uses only one partial reflector and only one reflection in the optical path.Type: GrantFiled: April 17, 2018Date of Patent: July 9, 2019Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Erin A. McDowell, Timothy L. Wong
-
Patent number: 10302950Abstract: A head-mounted display including a first optical system is described. The first optical system includes a partial reflector and a multilayer reflective polarizer disposed adjacent to and spaced apart from the partial reflector. The multilayer reflective polarizer is curved about orthogonal first and second axes and includes at least one layer that is substantially optically uniaxial at at least one location. Each chief ray that passes through the first optical system is first incident on the multilayer reflective polarizer at an angle of incidence less than 30 degrees.Type: GrantFiled: May 24, 2018Date of Patent: May 28, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andrew J. Ouderkirk, Timothy L. Wong, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
-
Patent number: 10281617Abstract: Durable hydrophobic antireflection structures for optical elements, optical windows, and front sheets of encapsulated photovoltaic and photonic devices are disclosed which can minimize reflection losses over the entire accessible portion of the solar spectrum simultaneously provide self-cleaning and finger-print-free surface. Reduced reflectance and self-cleaning surfaces are resulted from coating the front sheet of encapsulated device with combination of nonporous and porous nanostructured materials such as silicon dioxide nanorods and PTFE. Step-graded antireflection structures can exhibit excellent omnidirectional performance, significantly outperforming conventional quarter wavelength and low-high-low refractive index coatings. Methods of constructing nanostructured durable optical coatings with hydrophobic surfaces are disclosed that can cover large-area ridged and flexible substrates.Type: GrantFiled: July 25, 2016Date of Patent: May 7, 2019Assignee: Magnolia Optical Technologies, Inc.Inventors: Gopal G. Pethuraja, Roger E. Welser, Yash R. Puri, Ashok K. Sood
-
Patent number: 10180577Abstract: A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface.Type: GrantFiled: November 6, 2017Date of Patent: January 15, 2019Assignee: 3M Innovative Properties CompanyInventors: Andrew J. Ouderkirk, Max Powers
-
Patent number: 10146000Abstract: A polarizing plate, a method for manufacturing the same, and an optical display including the same are disclosed. The polarizing plate includes a polarizer, a protective coating layer on one surface of the polarizer, and an adhesive layer on one surface of the protective coating layer. The polarizing plate satisfies inequality 1. Rmax?Rmin?0.02??(1) In Inequality 1, Rmax is the maximum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer, and Rmin is the minimum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer.Type: GrantFiled: March 31, 2015Date of Patent: December 4, 2018Assignee: SAMSUNG SDI CO., LTD.Inventors: Yi Eun Kim, Won Kim, Ha Yun Cho, In Cheon Han
-
Patent number: 10139644Abstract: A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.Type: GrantFiled: June 30, 2017Date of Patent: November 27, 2018Inventors: Wei Rong, Evan Coons, Jeri J. Ellsworth, Ken Clements
-
Patent number: 10114159Abstract: The present specification relates to a method for manufacturing a polarizer and a polarizer manufactured by using the same, and more particularly, to a method for manufacturing a polarizer, which includes a cross-linking and elongating step using an aqueous solution including a polyvalent carboxylic acid compound and a boric acid compound, and a polarizer manufactured by using the same.Type: GrantFiled: January 26, 2016Date of Patent: October 30, 2018Assignee: LG CHEM, LTD.Inventors: Ji Young Kim, Hye Min Yu, Kyun Il Rah, Jin Yong Park, Eungki Lee, Taek Geun Nam
-
Patent number: 10061079Abstract: A method of making a grating in a waveguide includes forming a waveguide material over a substrate, the waveguide material having a thickness less than or equal to about 100 nanometers (nm). The method further includes forming a photoresist over the waveguide material and patterning the photoresist. The method further includes forming a first set of openings in the waveguide material through the patterned substrate and filling the first set of openings with a metal material.Type: GrantFiled: February 20, 2017Date of Patent: August 28, 2018Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jui Hsieh Lai, Ying-Hao Kuo
-
Patent number: 10042093Abstract: A process for fabricating a diffuse reflector includes: mixing a fluid that is immiscible in a solution containing mesogens into the solution to create a mixture containing droplets of the fluid suspended in the mixture; depositing a layer of the mixture on a surface; and processing the layer to form a film in a manner such that the droplets of the fluid disrupt alignment of the reactive mesogens in the solution and nucleate defects that propagate through the film. A diffuse reflector may include a first layer of cholesteric material that reflects a first wavelength of light and fluid droplets distributed in the layer to nucleate defects and separate domains.Type: GrantFiled: April 30, 2013Date of Patent: August 7, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Lana Woolford, Sarwat Amreen Baig, Mario Ariosto Matranga, Stephen Kitson
-
Patent number: 10012843Abstract: A light beam separating and absorbing element includes a mirror that receives first and second light beams incident on a first surface, and the mirror is configured to transmit the first light beam and reflect the second light beam. A beam absorber receives the first light beam transmitted through the mirror, and absorbs a first light portion of the transmitted first light beam after the first light beam has been transmitted through the mirror. The beam absorber scatters a second portion of the first light beam, and the beam absorber and mirror are positioned such that at least a portion of the scattered light is incident on a second surface of the mirror. Transmissivity of the mirror for the scattered light incident on the second mirror surface may be lower as compared to transmissivity for the first light beam incident on the first mirror surface to enhance separation of the first and second light beams.Type: GrantFiled: July 13, 2016Date of Patent: July 3, 2018Assignee: Sharp Kabushiki KaishaInventors: Sarah Anne Mitchell, Tim Michael Smeeton, Noriaki Fujii, Valerie Berryman-Bousquet
-
Patent number: 10007035Abstract: A head-mounted display including a first optical system is provided. The first optical system includes an image surface, a stop surface, a first optical stack disposed between the image surface and the stop surface and a second optical stack disposed between the first optical stack and the stop surface. The first optical stack includes a first optical lens and a partial reflector. The second optical stack includes a second optical lens and a curved multilayer reflective polarizer. A quarter wave retarder is disposed between the multilayer reflective polarizer and the partial reflector. The multilayer reflective polarizer and the partial reflector may be convex toward the image surface along orthogonal first and second axes.Type: GrantFiled: October 19, 2017Date of Patent: June 26, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andrew J. Ouderkirk, Timothy L. Wong, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
-
Patent number: 10003777Abstract: Examples disclosed herein relate to determining a segmentation boundary based on an image representing an object. Examples include capturing, from an infrared (IR) camera disposed above and pointed at a projection screen, an IR image representing an object disposed between the IR camera and the projection screen, based on an intensity of IR light reflected by the object and the projection screen including a surface to specularly reflect IR light. Examples include determining a segmentation boundary based at least in part on at least one boundary between a first set of IR light intensity values and a second set of IR light intensity values, wherein the segmentation boundary represents at least one outer edge of the object based on the IR image.Type: GrantFiled: November 21, 2013Date of Patent: June 19, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kar-Han Tan, Bradley Neal Suggs
-
Patent number: 9977273Abstract: A display panel includes a first substrate and a second substrate arranged opposite from one another; a liquid crystal layer arranged between the first substrate and the second substrate; a first film layer arranged between the first substrate and the liquid crystal layer, and a second film layer arranged between the second substrate and the liquid crystal layer, where the first film layer includes a first optical alignment base material and a first carbon nanotube layer, where the first carbon nanotube layer includes a plurality of carbon nanotubes extending along a first direction and is adhered to a side of the first substrate closer to the liquid crystal layer through the first optical alignment base material; and a plurality of first touch electrodes electrically connected to the first carbon nanotube layer.Type: GrantFiled: September 10, 2015Date of Patent: May 22, 2018Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Sifan Wei
-
Patent number: 9945999Abstract: Optical systems including first and second optical stacks and adapted to provide an adjustable dioptric correction are described. The first optical stack includes a first optical lens and a partial reflector. The second optical stack is convex along orthogonal first and second axes and includes a second optical lens and a reflective polarizer. The reflective polarizer has at least one first location having a radial distance r1 from an optical axis of the second optical stack and a displacement s1 from a plane perpendicular to the optical axis at an apex of the reflective polarizer, where s1/r1 is at least 0.1. A quarter wave retarder is disposed between the second optical stack and the first optical stack.Type: GrantFiled: December 15, 2016Date of Patent: April 17, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Timothy L. Wong, Andrew J. Ouderkirk, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
-
Patent number: 9845554Abstract: The present invention is directed to nanofiber yarns, ribbons, and sheets; to methods of making said yarns, ribbons, and sheets; and to applications of said yarns, ribbons, and sheets. In some embodiments, the nanotube yarns, ribbons, and sheets comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air. Furthermore these nanotube yarns can be spun as one micron diameter yarns and plied at will to make two-fold, four-fold, and higher fold yarns.Type: GrantFiled: February 26, 2016Date of Patent: December 19, 2017Assignee: Board of Regents, The University of Texas SystemInventors: Mei Zhang, Shaoli Fang, Ray H. Baughman, Anvar A. Zakhidov, Ali E. Aliev, Sergey Li, Chris Williams
-
Patent number: 9829603Abstract: To provide an antireflection film that is, in the case where a super high definition display element is used, capable of suppressing reflection on the surface of the display device, and capable of suppressing whitening, while preventing the image quality of the super high definition display element from being impaired. An antireflection film containing a transparent substrate, having thereon a high refractive index layer and a low refractive index layer, in which the antireflection film has a diffusion light reflectance (RSCE) measured under the following condition of 0.12% or less and is for a display element having a total light reflectance (RSCI) of 4.Type: GrantFiled: September 24, 2015Date of Patent: November 28, 2017Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tomohiko Shimatsu, Seiji Shinohara, Hiroshi Nakamura
-
Patent number: 9829605Abstract: A polarizing film, comprising a polarizer; transparent protective films with a water-vapor permeability of 150 g/m2/24 hours or less provided on both sides of the polarizer; and adhesive layers each interposed between the polarizer and one of the transparent protective films, wherein the adhesive layers are formed by applying an active energy ray to an active energy ray-curable adhesive composition containing a radically polymerizable compound, and the transparent protective films are bonded to the polarizer with the adhesive layers.Type: GrantFiled: March 29, 2013Date of Patent: November 28, 2017Assignee: NITTO DENKO CORPORATIONInventors: Tetsurou Takeda, Mie Nakata, Shunsuke Murayama, Tomohiro Yamashita, Takeshi Saito, Kunihiro Inui
-
Patent number: 9752061Abstract: Provided is an adhesive sheet comprising a support substrate, an adhesive agent layer (X), a continuous void-containing layer composed of a composition containing an adhesive agent and silica particles, and an adhesive agent layer (Y) that are laminated in this order, wherein the adhesive sheet that has a content by mass of the silica particles in the continuous void-containing layer of 25 to 60%; and when affixed to a surface of various plastic molded articles, the adhesive sheet prevents swelling or lifting, in other words, blistering after a lapse of time, to allow the surface of its support substrate to be smooth and to have an excellent appearance, wherein the adhesive sheet can exhibit excellent blister resistance regardless of the type of adhesive agent, and is furthermore easy to manufacture.Type: GrantFiled: September 27, 2013Date of Patent: September 5, 2017Assignees: LINTEC CORPORATION, NIPPON PAINT CO., LTD., NIPPON FINE COATINGS, INC.Inventors: Kiichiro Kato, Yumiko Amino
-
Patent number: 9703027Abstract: A wire grid polarizer includes a substrate, a first layer and a second layer disposed on the first layer, in which a first region and a second region are defined in the first layer, the first layer includes: a first wire grid including a plurality of first wires and disposed in the first region, where the first wires are spaced apart from each other, and no wire grid is disposed in the second region; and a first protection layer which covers the first wire grid, a third region and a fourth region are defined in the second layer, and the second layer includes a second wire grid including a plurality of second wires and disposed in the third region, where the second wires are spaced apart from each other, and no wire grid is disposed in the fourth region.Type: GrantFiled: November 14, 2014Date of Patent: July 11, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jaeseung Chung, Dongouk Kim, Joonyong Park, Jihyun Bae, Bongsu Shin, Sunghoon Lee, Sukgyu Hahm
-
Patent number: 9605363Abstract: Fabricating a nanofiber ribbon or sheet with a process that includes providing a primary assembly by arranging carbon nanotube nanofibers in aligned arrays, the arrays having a degree of inter-fiber connectivity, drawing the carbon nanotube nanofibers from the primary assembly into a sheet or ribbon, and depositing the sheet or ribbon on a substrate.Type: GrantFiled: November 25, 2015Date of Patent: March 28, 2017Assignee: THE BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Mei Zhang, Shaoli Fang, Ray H. Baughman, Anvar A. Zakhidov, Kenneth Ross Atkinson, Ali E. Aliev, Sergey Li, Chris Williams