Projector Including Liquid Crystal Cell (s) Patents (Class 349/5)
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Patent number: 12164207Abstract: A display device includes: a TFT substrate including a thin film transistor; a light-emitting element including a first electrode and a second electrode overlapping each other in a plan view, and a light-emitting layer placed between the first electrode and the second electrode; a third electrode capable of forming an electrical field between the second electrode and the third electrode; an optical adjustment element overlapping the light-emitting layer in a plan view and having an optical characteristic that changes in accordance with a potential difference between the second electrode and the third electrode; and light scattering bodies included in at least one of the TFT substrate, the light-emitting element, and the optical adjustment element.Type: GrantFiled: January 22, 2021Date of Patent: December 10, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Tazuko Kitazawa, Yoshihiro Ueta, Eiji Satoh, Zenken Kin
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Patent number: 12126943Abstract: A spatial light system that may, for example, be used to project image content onto surfaces of a room. The system may include two or more projection units for emitting light onto surfaces within a room. The system may include a controller and two or more projection units, each module including an LED array, an array of light pipes, and a condenser lens. Two or more projection units may be connected to a flexible strip that provides power and data (e.g., serial data) to the projection units. Two or more flex strips may be connected together. The flex strips provide a serially-connected, flexible modular architecture for spatial light systems that allow the projection units to be conformed to a variety of configurations and shapes.Type: GrantFiled: February 4, 2022Date of Patent: October 22, 2024Assignee: Apple Inc.Inventors: Felipe Bacim de Araujo e Silva, Stuart J. Wood, Noah D. Bedard, Bosheng Zhang, Dana F. Segler, Jr., Blake M. Coughenour, Rong Liu, Yung-Yu Hsu
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Patent number: 12117688Abstract: A display apparatus including a first substrate, a first electrode, a second substrate, a first microlens layer, a second microlens layer, a second electrode, a blocking wall structure, an electrophoresis medium, and multiple particles. The first electrode is disposed on the first substrate. The first microlens layer, having multiple first microlenses, is disposed on the second substrate. The second microlens layer, having multiple second microlenses, is disposed on the first microlens layer. The second electrode is disposed on the second microlens layer. The blocking wall structure is at least disposed between the first electrode and the second electrode and has an accommodating space corresponding to the first electrode. The electrophoresis medium is disposed in the accommodating space. The first microlens layer and the second microlens layer are disposed between the second substrate and at least a portion of the electrophoresis medium. The particles are mixed within the electrophoresis medium.Type: GrantFiled: November 1, 2021Date of Patent: October 15, 2024Assignee: Au Optronics CorporationInventor: Yu-Pin Kuo
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Patent number: 12099223Abstract: An optical construction includes a reflective polarizer layer having a first pass axis and an absorptive polarizer layer having a second pass axis that is substantially aligned with the first pass axis. At least one electrically conductive light scattering layer is arranged between the reflective polarizer layer and the absorptive polarizer layer.Type: GrantFiled: May 22, 2019Date of Patent: September 24, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Matthew H. Frey, Craig R. Schardt, Gary T. Boyd, Eric J. Borchers, Nicole D. Petkovich
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Patent number: 12095974Abstract: A beam deflection layer includes: a first selective polarization conversion-splitter that splits first color light in an incident light beam into 1A color light and 1B color light having different polarization directions from each other; a first beam deflector that deflects the 1A first first color light in the light beam from the 1A first selective polarization conversion-splitter, a first selective polarization converter that converts polarization directions of the 1A first first color light and the 1B second first color light in the light beam from the 1A first beam deflector, and a 1B second beam deflector configured to deflect the 1B second first color light in the light beam from the first selective polarization converter. The first color light, the 1A color light, and the 1B color light each have a first wavelength band.Type: GrantFiled: March 15, 2021Date of Patent: September 17, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Kim, Jungkwuen An, Kanghee Won, Jong-Young Hong
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Patent number: 12038650Abstract: A phase difference plate includes a phase difference plate P1 and a phase difference plate P2. An in-plane slow axis of the phase difference plate P1 is orthogonal to an in-plane slow axis of the phase difference plate P2. The phase difference plate P2 includes a layer of a liquid crystal material oriented in an in-plane direction. An in-plane retardation ReP2(?) at a wavelength A nm of the phase difference plate P2 satisfies the following formulae (e1) and (e2): {Re2 (400)?Re2(550)}/{Re2(550)?Re2(700)}<2.90 (e1), and Re2(400)/Re2(700)>1.13 (e2). An in-plane retardation ReP1(?) of the phase difference plate P1 at a wavelength ? nm and the in-plane retardation ReP2(?) of the phase difference plate P2 at the wavelength ? nm satisfy the following formulae (e4) and (e5): ReP1(550)>ReP2(550) (e4), and ReP1(400)/ReP1(700)<ReP2(400)/ReP2(700) (e5).Type: GrantFiled: February 21, 2022Date of Patent: July 16, 2024Assignee: ZEON CORPORATIONInventors: Masakazu Saito, Kazuhiro Osato, Masashi Aimatsu, Kei Sakamoto
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Patent number: 12027128Abstract: A display module and a display device are provided. In the display module, a liquid crystal display panel has a plurality of display subareas. A color backlight module has a plurality of backlight subareas in a one-to-one correspondence to the plurality of display subareas. A driving apparatus may sequentially drive liquid crystal molecules in the display subareas to turn over, and after driving the liquid crystal molecules in each display subarea to turn over, drive a light-emitting element of one color included in each backlight source in one corresponding backlight subarea to emit light.Type: GrantFiled: June 5, 2023Date of Patent: July 2, 2024Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Qing Ma, Rui Han, Pengtao Li, Daekeun Yoon, Jie Yu, Weining Chi, Tianyang Han, Jing Yu
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Patent number: 12015881Abstract: A light source apparatus includes a light source, a light collection optical system configured to collect a pencil of light emitted from the light source using multiple lenses, a microlens array formed into a size corresponding to a collected light diameter of a pencil of light collected by the light collection optical system and caused to be incident thereon from the light collection optical system, and a display device on to which light transmitted through the microlens array to be superimposed together is incident.Type: GrantFiled: March 15, 2023Date of Patent: June 18, 2024Assignee: CASIO COMPUTER CO., LTD.Inventor: Hiroshi Ogino
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Patent number: 12015101Abstract: A method of manufacturing a chip scale light-emitting diode package is provided. The method of manufacturing chip scale light-emitting diode package includes: manufacturing a lens molding sheet including intaglios on one surface thereof; forming a lens layer having lens portions on one surface thereof and a flat surface on a surface opposite thereto by applying a light-transmitting resin to the intaglios; forming an adhesive layer on the flat surface of the lens layer; arranging light-emitting diode chips, each having a first surface and a second surface opposite to the first surface, on the adhesive layer in such a way that the light-emitting diode chips correspond to the lens portions and the second surface is attached to the adhesive layer, wherein a first electrode pad and a second electrode pad are formed on the first surface; and manufacturing a chip array sheet by forming a molding part on the adhesive layer to cover outer surfaces of the light-emitting diode chips.Type: GrantFiled: October 7, 2021Date of Patent: June 18, 2024Assignee: LUMENS CO., LTD.Inventors: Seunghyun Oh, Pyoynggug Kim, Sungsik Jo
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Patent number: 11927785Abstract: There is provided a holographic optical element including: a hologram portion including a plurality of groups of unit regions, each group of unit regions of the hologram portion being configured to produce a respective holographic image under a respective light illumination having a respective predetermined wavelength; and a colour filter portion formed on the hologram portion, the colour filter portion including a plurality of groups of unit regions, each group of unit regions of the colour filter portion being arranged on a corresponding group of the plurality of groups of unit regions of the hologram portion, whereby the plurality of groups of unit regions of the colour filter portion is spatially arranged to form a predetermined colour image. There is also provided a method of forming the holographic optical element. There is further provided an article having optical security incorporated therein.Type: GrantFiled: April 15, 2019Date of Patent: March 12, 2024Assignee: SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGNInventors: Tze Peng Kevin Lim, Kwang Wei Joel Yang, Hailong Liu
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Patent number: 11914246Abstract: A display device (1) includes a light-emitting device (10), a reflective liquid crystal element (20), and an optical member (30). The light-emitting device (10) includes a plurality of light-emitting units (142) and a light-transmitting unit (144) located between the light-emitting units (142) adjacent to each other. The light-emitting device (10) is located between the reflective liquid crystal element (20) and the optical member (30). The plurality of light-emitting units (142) emit light toward the reflective liquid crystal element (20). The light emitted from the plurality of light-emitting units (142) is reflected by the reflective liquid crystal element (20), transmitted through the light-emitting unit (142) of the light-emitting device (10), and formed into an image by the optical member (30).Type: GrantFiled: February 8, 2021Date of Patent: February 27, 2024Assignees: Pioneer Corporation, Tohoku Pioneer CorporationInventors: Shinsuke Tanaka, Noriaki Waki, Katsuhiro Kanauchi, Hiroki Tan
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Patent number: 11899349Abstract: An apparatus for image projection is disclosed herein. In some embodiments, an apparatus may include an image projection device, a sealed housing, and a cooling system. A sealed housing may be configured to protect an image projection device from a foreign element. A sealed housing may include an image output window. A cooling system may include a cooling pad and a coolant reservoir. A cooling system may be configured to modulate the temperature of the image projection device.Type: GrantFiled: May 10, 2023Date of Patent: February 13, 2024Inventors: Christopher Clinton Chappell, McNamara Marlow Pope, III, Rodney Daniel Sparks
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Patent number: 11867938Abstract: Provided is a polarizing plate having a wire grid structure, comprising a transparent substrate, a first antireflection film laminated on the first surface of the transparent substrate, a plurality of protrusions protruding from the first antireflection film, a second antireflection layer laminated on a second surface opposite to the first surface, wherein the plurality of protrusions are periodically arranged at a pitch shorter than a wavelength of light in a use band, each of the protrusions extends in in a first direction and includes a reflective layer, a dielectric layer, and an absorption layer in order from the first direction, and both the first antireflection layer and the second antireflection layer have high refractive index layers and low refractive index layers that are alternately laminated.Type: GrantFiled: January 20, 2021Date of Patent: January 9, 2024Assignee: DEXERIALS CORPORATIONInventors: Hiroyuki Takahashi, Tomu Takeda
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Patent number: 11865799Abstract: Method and composition for switchable panels are disclosed. Switchable films are placed between glass and liquid resin is injected between the glass and cured. The panels may be used for a wide variety of applications.Type: GrantFiled: October 26, 2021Date of Patent: January 9, 2024Assignee: Scienstry, Inc.Inventor: Jiansheng Wang
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Patent number: 11781069Abstract: The present invention relates to an LC medium comprising and a liquid-crystalline host consisting of an LC component H) comprising one or more mesogenic or liquid-crystalline compounds and an optically active component D) and optionally a polymerizable component P) comprising one or more polymerizable compounds; and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.Type: GrantFiled: December 19, 2018Date of Patent: October 10, 2023Assignee: MERCK PATENT GMBHInventor: Kirsten (Min-Chu) Liao
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Patent number: 11768271Abstract: Optical receivers and transmitters can be used as stand-alone systems or combined together as a transceiver. Each of the receiver and transmitter may include an optically reflective steerable device, such as an optically reflective liquid crystal metasurface (LCM), to steer optical radiation to a target location. A transmit waveguide conveys optical radiation from a light source to the transmitter steerable device. A receive waveguide conveys received optical radiation reflected by the receiver optically steerable device to a sensor. In some embodiments, the transmit waveguide and the receive waveguide may be portions of the same planar waveguide. The receiver includes a holographic lens between the receiver LCM and the receive waveguide to pass through optical radiation received at a first range of incident angles and modify (e.g., collimate and/or spectrally filter) optical radiation reflected by the receiver LCM for conveyance by the receive waveguide to the sensor.Type: GrantFiled: March 25, 2020Date of Patent: September 26, 2023Inventor: Gleb M. Akselrod
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Patent number: 11765325Abstract: A system having a color filter having first and second segments. The first and second segments allow respective first and second wavelengths to pass through to a spatial light modulator. The first and second segments also reflect second and first wavelengths, respectively. The reflected first and second wavelengths are recycled and directed towards the color filter.Type: GrantFiled: October 30, 2020Date of Patent: September 19, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Kristofer Scott Oberascher, Gregory Scott Pettitt, Jeffrey Matthew Kempf, Michael Terry Davis, Xi Zhou
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Patent number: 11754849Abstract: An optical assembly includes a plurality of polarizing beamsplitters (PBS) including a first PBS and a second PBS. Each PBS includes a similar splitting optical coating. The splitting optical coating on the second PBS is oriented as rotated 90° relative to the splitting optical coating on the first PBS. There may be a third PBS offset to another side of the first PBS. The splitting optical coating on the third PBS, which is similar to the splitting optical coating on the first PBS and the second PBS, is oriented as rotated 90° relative to the splitting optical coating on the first PBS. The splitting optical coatings on the second PBS and the third PBS may be oriented in the same direction. A beamsplitting assembly may be formed from the optical assembly by coupling image sensors to major surfaces of the second PBS and the third PBS.Type: GrantFiled: December 4, 2019Date of Patent: September 12, 2023Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Jacob D. Garan
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Patent number: 11740462Abstract: A holographic head-up display device includes: a light source portion that emits coherent light; an optical modulation portion that modulates the coherent light; a relay optical system that focuses the modulated light; a filter mirror that includes a reflection area disposed at a focal position of the relay optical system and reflecting light incident through the relay optical system and an absorption area disposed at the periphery of the reflection area and absorbing light incident through the relay optical system; and a transflective mirror that partially transmits and partially reflects light reflected by the filter mirror.Type: GrantFiled: August 5, 2020Date of Patent: August 29, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hye Sog Lee, Byung Choon Yang, Jae Ho You
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Patent number: 11714221Abstract: A method for making a wire grid polarizer (WGP) can provide WGPs with high temperature resistance, robust wires, oxidation resistance, and corrosion protection. In one embodiment, the method can comprise: (a) providing an array of wires on a bottom protection layer; (b) applying a top protection layer on the wires, spanning channels between wires; then (c) applying an upper barrier-layer on the top protection layer and into the channels through permeable junctions in the top protection layer. In a variation of this embodiment, the method can further comprise applying a lower barrier-layer before applying the top protection layer. In another variation, the bottom protection layer and the top protection layer can include aluminum oxide. In another embodiment, the method can comprise applying on the WGP an amino phosphonate then a hydrophobic chemical.Type: GrantFiled: April 1, 2021Date of Patent: August 1, 2023Assignee: Moxtek, Inc.Inventors: R. Stewart Nielson, Matthew C. George, Shaun Ogden, Brian Bowers
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Patent number: 11716451Abstract: A color correction method and a color correction system that executes the color correction method are provided. A correction image is projected on a projection screen based on a predefined value. A single frame of the correction image includes multiple regions. The multiple regions include multiple hue regions with different hues and multiple lightness regions with different lightness corresponding to the hues, or the multiple regions include multiple gray-scales regions with different gray-scales. A captured image is obtained by capturing the projection screen. Optical information of the captured image is detected. The optical information is compared with the predefined value to obtain an uneven color region that does not conform to the predefined value. The uneven color region is adjusted so that the optical information of the uneven color region conforms to the predefined value. The time for color correction can be greatly reduced accordingly.Type: GrantFiled: March 28, 2021Date of Patent: August 1, 2023Assignee: Coretronic CorporationInventors: Yu-Fan Lee, Cheng-Tao Ho
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Patent number: 11675212Abstract: Systems and methods presented herein include light field displays configured to display primary autostereoscopic images and to simultaneously project light rays toward display devices (e.g., either reflective devices or cameras) to display secondary autostereoscopic images via the display devices. The light rays projected from the light field displays are controlled by a control system based at least in part on positional tracking data (e.g., position, orientation, and/or movement) of the display devices and/or of a portion of humans associated with the display devices, which may be detected via sensors of the display devices and/or via cameras disposed about a physical environment within which the display devices and the humans are located. Specifically, the control system calculates light field vector functions for light rays to be projected toward each individual display device based at least in part on positional tracking data for that particular display device and/or its associated human.Type: GrantFiled: October 19, 2021Date of Patent: June 13, 2023Assignee: Universal City Studios LLCInventor: Akiva Meir Krauthamer
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Patent number: 11675213Abstract: Systems and methods presented herein include light field displays configured to display primary autostereoscopic images and to simultaneously project (e.g., in real time, while displaying their own primary autostereoscopic images) light rays toward display devices (e.g., either reflective devices or cameras) to display secondary autostereoscopic images via the display devices. The light rays projected from the light field displays are controlled by a control system based at least in part on positional data (e.g., position, orientation, and/or movement) of the display devices, which may be determined by the control system based at least in part on detection of light rays that are reflected off the display devices.Type: GrantFiled: October 19, 2021Date of Patent: June 13, 2023Assignee: Universal City Studios LLCInventor: Akiva Meir Krauthamer
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Patent number: 11656504Abstract: In a liquid crystal apparatus, a liquid crystal is provided in a cavity surrounded by a seal material between a first substrate and a second substrate, and the liquid crystal is aligned in a diagonal direction formed by corners 10a1, 10a3. Between a pixel area and the seal material, a first groove is formed along a side 20a6 from the corner 10a1 toward a corner 10a2. When a first pump is driven, the liquid crystal of the pixel area is drawn from a first end of the first groove on the corner 10a1 side, and the liquid crystal is ejected from a second end into the pixel area. As a result, a liquid crystal flow from the side of a side 20a7 toward the side of a side 20a9 occurs in the pixel area, and thus the liquid crystal can be smoothly circulated.Type: GrantFiled: May 12, 2020Date of Patent: May 23, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Naoki Tomikawa
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Patent number: 11635676Abstract: An accessory may be attached to image projector via an associated accessory-interface structure, the latter of which is operatively coupled to at least one projector-attachment structure that extends through an opening in a front panel of the projector so as to provide for clamping the accessory-interface structure to the front panel of the image projector.Type: GrantFiled: July 24, 2021Date of Patent: April 25, 2023Assignee: PANAMORPH, INC.Inventor: Shawn L. Kelly
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Patent number: 11624970Abstract: A projection liquid crystal display device including a first optical system that splits a light beam outputted from a light source into a red light beam, a green light beam, and a blue light beam, a red liquid crystal panel, a green liquid crystal panel, and a blue liquid crystal panel that modulate the red light beam, the green light beam, and the blue light beam, respectively, a second optical system that combines the modulated red light beam, the modulated green light beam, and the modulated blue light beam into one optical path, and a projection lens system that projects a light beam outputted from the second optical system on a projection surface, in which a configuration of a liquid crystal layer of the red liquid crystal panel is different from respective configurations of liquid crystal layers of the green liquid crystal panel and the blue liquid crystal panel.Type: GrantFiled: August 7, 2019Date of Patent: April 11, 2023Assignee: SONY CORPORATIONInventors: Akiko Toriyama, Yoshitaka Yagi
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Patent number: 11624955Abstract: In a liquid crystal device, an intermediate refractive index film including a silicon nitride film, a silicon oxynitride film, or an aluminum oxide film is provided between an oriented film formed of a diagonally vapor-deposited film of silicon oxide and an electrode containing ITO. Thus, because there are no interfaces having a large refractive index difference between the oriented film and the electrode, reflection between the oriented film and the electrode can be suppressed. A high density silicon oxide film is formed between the intermediate refractive index film and the oriented film. The high density silicon oxide film is formed by an atomic deposition method, thus is appropriately formed inside a contact hole.Type: GrantFiled: October 8, 2021Date of Patent: April 11, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 11556049Abstract: A projector includes a main body and a projection lens. The main body includes a light source, liquid crystal panels that modulate light outputted from the light source, and a lens holder to and from which the projection lens is attachable and detachable. The projection lens projects the light modulated, and the lens holder includes a first lens holding mechanism and a second lens holding mechanism that hold the projection lens.Type: GrantFiled: June 10, 2021Date of Patent: January 17, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Kenji Sakamoto
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Patent number: 11543575Abstract: There is herein defined optics (e.g. an array of optics) forming an optical beam to either produce a collimated or diverging/converging beam emerging from a virtual source point to illuminate a hologram. There is also described an optical beam illuminating a reflection hologram from the front and a further configuration where an optical beam combined with a holographic optical element (HOE) minor enables rear illumination of a reflection hologram.Type: GrantFiled: September 21, 2018Date of Patent: January 3, 2023Assignee: CERES IMAGING LIMITEDInventors: Ian Redmond, Duncan Anderson
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Patent number: 11543654Abstract: The present invention discloses a lens module and a system for producing an image. The lens module includes a print circuit board, a spacer, attached onto the print circuit board, and the spacer having a through hole; a lens assembly, supported by the spacer and covered the through hole; an image sensor, mounted on the print circuit board and electrically connected with the print circuit; the lens assembly is configured for capturing light reflected by an object and transmitting the light into the image sensor; the image sensor is configured for converting the light into raw image signals. The lens module may be a simple optics module and thinner than a related lens module.Type: GrantFiled: September 16, 2020Date of Patent: January 3, 2023Assignee: AAC Optics Solutions Pte. Ltd.Inventor: Eero Sakari Paivansalo
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Patent number: 11520392Abstract: Systems and methods for operating a power source as a heating device in an Information Handling System (IHS) are described. In some embodiments, an IHS may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to: receive an indication to increase a temperature of the IHS and, in response to the indication, concurrently set a first power supply in source mode and a second power supply in sink mode.Type: GrantFiled: September 1, 2021Date of Patent: December 6, 2022Assignee: Dell Products, L.P.Inventors: John J. Breen, Jaehyeung Park, Lei Wang
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Patent number: 11516447Abstract: An integrated imaging display system is provided. The integrated imaging display system includes: a light source, a converging lens, an illumination microlens array, and a projection microlens array, where illumination microlens units in the illumination microlens array and projection microlens units in the projection microlens array are disposed in a one-to-one correspondence, and the converging lens converts all light emitted by the light source into parallel light and then irradiates the parallel light to the illumination microlens array; a sub-image is provided on a side of each of the illumination microlens units close to the projection microlens unit; all light emitted by each of the illumination microlens units is irradiated on a corresponding projection microlens unit after passing through the sub-image, and the projection microlens array displays an image of the sub-image.Type: GrantFiled: September 2, 2021Date of Patent: November 29, 2022Assignee: Army Academy of Armored forces of PLAInventors: Xingpeng Yan, Xiaoyu Jiang, Weifeng Wang, Yan Mao, Xi Wang, Yunpeng Liu, Qiang Qu
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Patent number: 11500251Abstract: An electro-optical device. The electro-optical device includes an pixel electrode that applies the electric field to the electro-optical layer, a transistor that includes a semiconductor layer including a drain region, a capacitance element that includes a first capacitance electrode and a second capacitance electrode, an electrode contact coupled to the pixel electrode, and a drain relay electrode electrically coupled to the drain region. The pixel electrode contact is coupled to the second capacitance electrode and the drain relay electrode.Type: GrantFiled: June 17, 2021Date of Patent: November 15, 2022Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 11488209Abstract: The present application discloses a windshield for a vehicle with the windshield having a first glass layer, a second glass layer, a first plastic interlayer between the first glass layer and the second glass layer, and an electronic display between the first glass layer and the plastic layer. The electronic display is configured to display at least one image when in operation.Type: GrantFiled: June 17, 2020Date of Patent: November 1, 2022Assignee: Manicka Institute LLCInventor: Yatheendhar D. Manicka
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Patent number: 11422441Abstract: An image display apparatus according to an embodiment of the present technology includes: a light emission unit; an object to be irradiated; and a reflection portion. The light emission unit emits image light along a predetermined axis. The object to be irradiated is disposed at least partially around the predetermined axis. The reflection portion is disposed facing the light emission unit with reference to the predetermined axis and has a plurality of reflection regions that divides the emitted image light into a plurality of light beams and reflects the light beams toward the object to be irradiated.Type: GrantFiled: March 27, 2019Date of Patent: August 23, 2022Assignee: Sony CorporationInventor: Tomoharu Nakamura
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Patent number: 11415835Abstract: Liquid crystal displays in computer monitors require a source of backlight, in which light emitting diodes are the most widely used, however these electric light sources can cause eye strain after prolonged viewing. In order to provide an alternative to desktop computer users which are in front of LCD displays for most of the day, the present invention supplies a way to use natural solar backlight from a nearby window or candle to completely eliminate such strain.Type: GrantFiled: August 17, 2019Date of Patent: August 16, 2022Inventor: Sven Steinbauer
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Patent number: 11415793Abstract: An apparatus includes a backlight, a color filter disposed in front of the backlight along a viewing direction, wherein the color filter includes a plurality of pixels repeating at a first spacing along a first axis. The apparatus further includes a lenticular layer disposed in front of the backlight, the lenticular layer including a section of material having a first index of refraction, a first, substantially flat side, and a second side defining a lenticularly patterned cross section along the first axis, the lenticularly patterned cross section including lens elements repeating at a second spacing and directing light originating from the backlight in two or more directions.Type: GrantFiled: March 14, 2019Date of Patent: August 16, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Nigel A. Clarke, Sergio Perdices-Gonzalez
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Patent number: 11408999Abstract: A LIDAR system includes an imaging sensor optically aligned with imaging optics along a first optical path. A laser source is optically aligned with laser optics along a second optical path. A single scanning mechanism is aligned with both the first optical path and the second optical path for directing outgoing laser illumination from the laser source in a scanning direction and for directing incoming laser return illumination from the scanning direction.Type: GrantFiled: September 14, 2018Date of Patent: August 9, 2022Assignee: Goodrich CorporationInventors: James B. Johnson, Ian Peter Humphrey
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Patent number: 11409118Abstract: The present disclosure provides a device for generating a 3D light field. The device comprises a first lens having a fixed focal length, and an imaging element arranged to send light into the first lens. The imaging element is configured to send the light from different positions within a defined distance on the optical axis of the first lens, in order to produce different depth layers of the 3D light field within a frame duration.Type: GrantFiled: October 25, 2019Date of Patent: August 9, 2022Assignees: Huawei Technologies Co., Ltd., Cambridge Enterprise LimitedInventors: Jia Jia, Jhensi Chen, Daping Chu, Qing Zhang, Tao Lin
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Patent number: 11391987Abstract: A backlight module including a light guide plate, a light source, a prism sheet and a light absorbing sheet is provided. The light guide plate has a light incident surface, a light emitting surface connected to the light incident surface and a bottom surface opposite to the light emitting surface. At least one of the light emitting surface and the bottom surface of the light guide plate is disposed with a plurality of micro lens structures. The light source is disposed on a side of the light incident surface of the light guide plate. The prism sheet is overlapped with the light emitting surface of the light guide plate and has a plurality of prism structures facing the light emitting surface with an extending direction parallel to the light incident surface. The light absorbing sheet is disposed on a side of the bottom surface of the light guide plate.Type: GrantFiled: December 3, 2020Date of Patent: July 19, 2022Assignee: Coretronic CorporationInventors: Ping-Yen Chen, Chung-Yang Fang, Yang-Ching Lin, Jen-Wei Yu, Yu-Fan Chen
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Patent number: 11333320Abstract: A method and apparatus for improving the optical properties of an LED using a retroreflector element. A light emitting apparatus includes a substrate, at least one light emitting device attached to the substrate and including an outer primary light emitting surface through which substantially all light is emitted, and a retroreflector assembly attached to the substrate. The retroreflector assembly includes a proximal surface adjacent to the substrate, a distal surface spaced away from the substrate, and a retroreflective portion arranged between proximal surface and the distal surface. A distance from the distal surface to the substrate is less than or equal to a distance from the outer primary light emitting surface to the substrate.Type: GrantFiled: September 13, 2019Date of Patent: May 17, 2022Assignee: American Sterilizer CompanyInventors: Aaron James Becker, David Jesurun
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Patent number: 11294114Abstract: An optical element and a projection image display apparatus capable of obtaining excellent tolerance to light of high luminance and high output. The optical element includes a substrate transparent to light in a used wavelength band, and a birefringent layer including an obliquely deposited film containing hafnium oxide as a main component. The projection image display apparatus includes a liquid crystal display device having the optical element, a light source for emitting light, and a projection optical system for projecting modulated light, and the liquid crystal display device is disposed in an optical path between the light source and the projection optical system.Type: GrantFiled: November 13, 2018Date of Patent: April 5, 2022Assignee: DEXERIALS CORPORATIONInventors: Junichi Sugawara, Yoshi Kanega, Toshiaki Sugawara
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Patent number: 11294184Abstract: Various embodiments set forth a foveated display system and components thereof. The foveated display system includes a peripheral display module disposed in series with a foveal display module. The peripheral display module is configured to generate low-resolution, large field of view imagery for a user's peripheral vision. The foveal display module is configured to perform foveated rendering in which high-resolution imagery is focused towards a foveal region of the user's eye gaze. The peripheral display module may include a diffuser that is disposed within a pancake lens, which is a relatively compact design. The foveal display module may include a Pancharatnam-Berry Phase grating stack that increases the steering range of a beam-steering device such that a virtual image can be steered to cover an entire field of view visible to the user's eye.Type: GrantFiled: January 6, 2020Date of Patent: April 5, 2022Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Lu Lu, Gang Li, Seungjae Lee, Mengfei Wang
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Patent number: 11281049Abstract: In order to provide a phase difference compensating element that has durability and that can improve contrast in a liquid crystal display with high precision while suppressing high costs and long lead times, the present invention is provided with, on a substrate, a first optical anisotropic layer that acts as a C-plate and a second optical anisotropic layer that includes a birefringent film formed by depositing an inorganic material, wherein the birefringent film included in the second optical anisotropic layer is fabricated using specific processes.Type: GrantFiled: May 23, 2019Date of Patent: March 22, 2022Assignee: Dexerials CorporationInventor: Junichi Sugawara
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Patent number: 11272169Abstract: The present application provides a viewpoint controllable three-dimensional image display apparatus. The viewpoint controllable three-dimensional image display apparatus includes a display panel having a light emitting side; a back light for providing a light source for image display in the display panel; a first grating on a side of the light emitting side distal to the back light; a second grating between the display panel and the back light; and a controller configured to alternately turn on and off the first grating and the second grating in a time-division driving mode including a first mode and a second mode, thereby presenting a three-dimensional image to a user. In the first mode, the controller is configured to turn off the second grating, and turn on the first grating. In the second mode, the controller is configured to turn off the first grating, and turn on the second grating.Type: GrantFiled: August 31, 2018Date of Patent: March 8, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Zhongxiao Li, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Jinye Zhu
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Patent number: 11269218Abstract: Provided is a phase difference compensation element that can improve a contrast of a liquid crystal display device and has durability while suppressing an increase in cost and prolongation of lead time. The phase difference compensation element is formed so that, when an optical anisotropic layer is formed on a substrate, the optical anisotropic layer includes a plurality of birefringent films, and a direction of a combined vector obtained by combining respective vectors of the birefringent films when determining a vector with a direction of a line segment obtained by projecting a film formation direction of each birefringent film on a surface of a transparent substrate and a thickness, is substantially the same as a direction of a line segment obtained by projecting a liquid crystal molecule constituting a liquid crystal cell on the surface of the transparent substrate.Type: GrantFiled: January 29, 2019Date of Patent: March 8, 2022Assignee: Dexerials CorporationInventor: Junichi Sugawara
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Patent number: 11249585Abstract: The present application provides a method of fabricating a substrate. The method includes forming an insulating material layer on a base substrate; forming a plurality of channels extending into the insulating material layer; and forming a plurality of signal lines respectively in the plurality of channels. Each individual one of the plurality of signal lines is formed on a lateral side of a respective one of the plurality of channels.Type: GrantFiled: June 5, 2018Date of Patent: February 15, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaoyue He, Taofeng Xie, Wenjin Fan
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Patent number: 11209579Abstract: The cross dichroic prism according to the present disclosure includes four prisms and two dichroic mirrors. Each of the four prisms has a triangle-prism shape. The four prisms are arranged to form a quadrangular prism as a whole in a manner such that the ridge line portions are located close to each other, a first plane of one prism faces a second plane of another prism, and a third plane faces outward. Each of the two dichroic mirrors is constituted of a dielectric multilayer film provided between the first plane of one prism and the second plane of another prism. The outermost layer of a dielectric layer constituting the dielectric multilayer film is provided in contact with each of the first plane of the one prism and the second plane of the other prism.Type: GrantFiled: July 2, 2019Date of Patent: December 28, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Akio Fukase, Kunihiko Yano
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Patent number: 11204519Abstract: A liquid crystal apparatus includes an element substrate provided with a pixel electrode and a TFT, and a counter substrate disposed facing the element substrate. The element substrate includes a first microlens, a second microlens, and a third microlens corresponding to the pixel electrode. The first microlens is disposed further toward an incident side of light than the second microlens. A relationship between a lens power of the first microlens and a lens power of the second microlens is that the lens power of the first microlens is greater than or equal to the lens power of the second microlens.Type: GrantFiled: December 9, 2020Date of Patent: December 21, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 11099646Abstract: A brain-controlled wearable display device includes a display panel, a display control circuit, and a brain control circuit connected with the display control circuit. The brain control circuit is configured to generate a control instruction according to a brain wave, and the display control circuit is configured to control the display panel according to the control instruction.Type: GrantFiled: October 27, 2017Date of Patent: August 24, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenbo Li