Polarizer Patents (Class 349/96)
  • Patent number: 12292654
    Abstract: Provided is a liquid crystal display device that can achieve high-speed response in both rise time and fall time and has a high transmittance, a high contrast ratio, and excellent viewing angle characteristics. The liquid crystal display device provides color display using a field sequential driving system where each frame period includes subframe periods and includes: a liquid crystal display panel; a light source that irradiates the liquid crystal display panel with lights of multiple colors; and a controller that drives the light source to time-divisionally irradiate the liquid crystal display panel with the lights of multiple colors. The liquid crystal display panel includes, sequentially in the following order: a first substrate including pixel electrodes; a first alignment film; a liquid crystal layer; a second alignment film; and a second substrate including a common electrode.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: May 6, 2025
    Assignee: Sharp Display Technology Corporation
    Inventors: Shinichi Terashita, Kouichi Watanabe, Fumikazu Shimoshikiryoh
  • Patent number: 12291660
    Abstract: Provided is a method for preparing a PSA composition for protecting Low-E glass plates from degradation and corrosion. A PSA composition preparation method is provided for Low-E glass plate protection. The method comprises a step of obtaining an aqueous liquid, and a step of obtaining a polymer containing liquid comprising the aqueous liquid and a polymer. Here, the aqueous liquid satisfies at least (a) having an electrical conductivity below 300 ?S/cm or (b) having a chloride ion concentration below 35 ?g/mL.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 6, 2025
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kosuke Yonezaki, Hakaru Horiguchi, Yuta Shimazaki
  • Patent number: 12285913
    Abstract: A curing system for an additive fabrication system includes a light source, a liquid crystal cell, and a first polarizer. The light source is configured to emit light at a wavelength suitable for curing a material. The liquid crystal cell is configured to receive the light from the light source. The first polarizer comprises a polyvinyl alcohol (PVA) matrix and organic dyes impregnated into the PVA matrix.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: April 29, 2025
    Assignee: Formlabs Inc.
    Inventors: Andrew Goldman, Hayley Whelan, Henry Whitney, Maxim Lobovsky, Mehmet Dogan
  • Patent number: 12282177
    Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: April 22, 2025
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dae Seob Shim, Young Oh, Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho, Young Hyun Ju
  • Patent number: 12265244
    Abstract: Disclosed are an optical film, a polarizer, and a display device. The optical film includes a resin and a light diffuser mixed with the resin. The light diffuser includes a whisker and a modifying group attached to a surface of the whisker. The modifying group has a structural formula of —X-A-R, wherein X is selected from SO3 or PO4H, A is selected from a single bond, a substituted or unsubstituted aromatic hydrocarbon group containing 6 to 20 ring atoms, or an imidazolinyl group, and R is selected from a substituted or unsubstituted alkyl group containing 2 to 20 carbon atoms, a substituted or unsubstituted siloxy group containing 2 to 20 carbon atoms, or an alkylolamide group containing 2 to 20 carbon atoms.
    Type: Grant
    Filed: August 31, 2023
    Date of Patent: April 1, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ji Li, Hanming Li, Guang Zeng, Fang Tan, Hongshan Yin, Kai Chen
  • Patent number: 12265218
    Abstract: An object of the present invention is to provide a light-transmissive cover, which does not deteriorate luminance of images projected from a display unit, while easily suppressing heat input from the sun into the display unit of a head-up display without using an expensive member. The present invention is a light-transmissive member for use in a head-up display device, and the light-transmissive member is formed of a polycarbonate-based resin composition, has a thickness in a range of 0.2 to 0.6 mm and contains composite tungsten oxide particles as an infrared ray shielding agent, wherein a content of the composite tungsten oxide particles, A (weight %), and a thickness of a layer containing the composite tungsten oxide particles, B (mm), satisfy the following formula (1): 0.02?A×B?0.12.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: April 1, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Koichi Masaoka, Kyoichi Kubo
  • Patent number: 12252567
    Abstract: The present invention provides an acrylate-based copolymer obtained by polymerizing constituent monomers including a polymerizable monomer (a) consisting of an alkyl acrylate-based monomer represented by the following general formula (1) in an amount of from 10 mol % to 95 mol % with respect to a total number of moles of the constituent monomers, a polymerizable monomer (b) consisting of an alkylene glycol acrylate-based monomer represented by the following general formula (2) in an amount of from 5 mol % to 50 mol % with respect to the total number of moles of the constituent monomers, and at least one kind of polymerizable monomer (c) selected from the group consisting of an aromatic vinyl-based monomer (c-1) and a short-chain alkyl acrylate-based monomer (c-2) represented by the following general formula (3) in an amount of from 0 mol % to 60 mol % with respect to the total number of moles of the constituent monomers.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: March 18, 2025
    Assignee: ADEKA CORPORATION
    Inventors: Kenji Yamamoto, Tsuyoshi Hiramatsu, Shuhei Igarashi, Kazuki Marumo
  • Patent number: 12253753
    Abstract: A display panel includes a liquid crystal cell, a first polarizing assembly and a second polarizing assembly. The liquid crystal cell includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate. The first polarizing assembly is disposed on a side of the first substrate further away from the liquid crystal layer and includes at least a first polarizing layer having a first transmission axis, and the first polarizing assembly is configured for generating polarized light whose polarization direction is parallel to the first transmission axis. The second polarizing assembly is located on a side of the second substrate further away from the liquid crystal layer and includes at least a transflective layer and a light absorbing layer.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: March 18, 2025
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiaxing Wang, Feng Liu, Xiaojuan Wu, Jian Wang, Yao Bi, Jinshuai Duan, Cuiyu Chen, Yu Zhao, Dawei Feng, Zhiqiang Yu, Danxing Hou, Ning Wang, Mingjing Liu, Yichi Zhang
  • Patent number: 12234355
    Abstract: The thermoplastic resin composition includes: a (meth)acrylic acid ester copolymer obtained by polymerizing a vinyl monomer mixture containing 50% by mass or more and less than 80% by mass of a (meth)acrylic acid ester monomer and 12-39% by mass of an aromatic vinyl monomer; a hindered amine compound having a molecular weight of 200-1800; and an ultraviolet absorber compound having a maximum absorption wavelength at 250-300 nm. The thermoplastic resin composition optionally includes a graft copolymer, and the hindered amine compound is present in an amount of 0.4-1.8 parts by mass, the ultraviolet absorber compound is present in an amount of 0.1-1.6 parts by mass, and a sum of the amounts of the hindered amine compound and the ultraviolet absorber compound is not more than 2.0 parts by mass, each relative to 100 parts by mass of a combination of the (meth)acrylic acid ester copolymer and the graft copolymer.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 25, 2025
    Assignee: TECHNO-UMG CO., LTD.
    Inventor: Hiroyuki Atsuta
  • Patent number: 12216373
    Abstract: According to one embodiment, a display device includes a display panel configured to modulate a first polarization component, a first viewing angle control panel including a first liquid crystal layer containing twisted liquid crystal molecules, a second viewing angle control panel including a second liquid crystal layer containing twisted liquid crystal molecules, and a polarization axis rotation element provided between the first viewing angle control panel and the display panel. A second polarization axis of a second polarization component which passed through the first viewing angle control panel is different from a first polarization axis of the first polarization component. The polarization axis rotation element is configured to rotate the second polarization axis.
    Type: Grant
    Filed: April 9, 2024
    Date of Patent: February 4, 2025
    Assignee: JAPAN DISPLAY INC.
    Inventor: Toshiharu Matsushima
  • Patent number: 12219696
    Abstract: A display device includes a display panel, a protection film which faces the display panel and includes a first surface closest to the display panel and a second surface which is opposed to the first surface, a first anti-static layer which defines the first surface of the protection film, a second anti-static layer which faces the first anti-static layer and defines the second surface of the protection film, and a polyimide film between the first anti-static layer and the second anti-static layer, and an adhesive layer which forms an interface with the first surface of the protection film and attaches the protection film to the display panel.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sungjune Park
  • Patent number: 12210239
    Abstract: A color conversion panel includes: a substrate defining a first surface through which external light is incident to the substrate and a second surface which is opposite to the first surface and through which the external light exits the substrate; a reflective polarization film at the first surface of the substrate; and at the second surface of the substrate, a first color conversion layer and a second color conversion layer each on the second surface of the substrate; a polarization layer on the first color conversion layer and the second color conversion layer; and a planarization layer between the polarization layer and the first color conversion layer and between the polarization layer and the second color conversion layer.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 28, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Ho Song, Sung Man Kim
  • Patent number: 12204201
    Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, and a first polarizing layer disposed corresponding to the first substrate. The first polarizing layer includes a first sublayer, a second sublayer, and a first polarizing material layer disposed between the first sublayer and the second sublayer. The first sublayer has a first shrinkage force, the second sublayer has a second shrinkage force, and the shrinkage direction of the first shrinkage force is parallel to the shrinkage direction of the second shrinkage force.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: January 21, 2025
    Assignee: SUZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dazhao Wu, Junfang Lv, Junjie Li, Dan Cao
  • Patent number: 12204186
    Abstract: A privacy filter, a display panel, and a display device are provided. The display panel includes a panel body, and a first polarizer, a dimming liquid crystal layer, and a second polarizer that are sequentially disposed on one side of the panel body. The dimming liquid crystal layer includes a plurality of polymer networks and a plurality of liquid crystal molecules distributed in the polymer networks, wherein the plurality of polymer networks are arranged in a first direction, the first direction tilts relative to a normal direction of the first polarizer, and an optical axis direction of the first polarizer is parallel to an optical axis direction of the second polarizer.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 21, 2025
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Rui He, Wei Cheng, Changchih Huang
  • Patent number: 12196991
    Abstract: A display device includes a display panel and a polarizer positioned above the display panel. The display panel includes a flat-surface part having a flat state and a curved-surface part having a curved state. The flat-surface part is adjacent to the curved-surface part. The polarizer includes a first polarization region corresponding to the flat-surface part and a second polarization region corresponding to the curved-surface part. The polarizer comprises a hard coating layer, positioned on the first polarization region.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 14, 2025
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wenhua Yang
  • Patent number: 12189161
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: January 7, 2025
    Assignee: Moxtek, Inc.
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Patent number: 12189151
    Abstract: An optical laminate is provided. When the optical laminate is applied to an OLED display device, the problem of visibility due to reflection of external incident natural light of the device can be solved, and simultaneously its display quality can also be improved.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: January 7, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Beom Su Kim, Hae Sung Cho, So Ra Yoon, Nah Reen Kwak
  • Patent number: 12189150
    Abstract: An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures each comprising a lenticular prism having linear end sections connected by a blend section separated by a substantially flat land area, wherein the blend section shape is a segment of an ellipse of 2nd, 4th or 6th order polynomial.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 7, 2025
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Robert M. Emmons, Kenneth A. Epstein, Bryan V. Hunt
  • Patent number: 12181699
    Abstract: An optical stack for a display device includes multiple layers that are incorporated into a display device that further includes a display panel. The optical stack includes a resin layer, an alignment film, an optical compensation layer, a polarizer, and a hard coat layer that are stacked in this order from a panel side. The optical stack is formed by preparing and coating a solution for each layer, and then curing and otherwise treating each layer as warranted for a particular layer, in turn to form the optical stack.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: December 31, 2024
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Sakai, Masahiro Hasegawa, Miho Yamada, Kiyoshi Minoura
  • Patent number: 12174494
    Abstract: A light control member and a light control device in which a non-electrode region is less visible. A light control film is a light control member having controllable transmissivity and includes: an undivided first common electrode; divided first electrodes; a first liquid-crystal layer disposed between the first common electrode and the first electrodes; an undivided second common electrode; divided second electrodes; and a second liquid-crystal layer disposed between the second common electrode and the second electrodes. First non-electrode lines dividing the first electrodes and second non-electrode lines dividing the second electrodes are arranged at positions not overlapping one another when viewed in the direction normal to the light control film.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: December 24, 2024
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Takao Ikezawa, Tomoya Kawashima
  • Patent number: 12174482
    Abstract: Provided is a display device in which warping of a display panel is sufficiently reduced or prevented. The display device includes: a display panel; and a polarizer, the polarizer being provided with at least one notch that extends inward from an outer edge of the polarizer.
    Type: Grant
    Filed: August 29, 2023
    Date of Patent: December 24, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Ryosuke Saigusa, Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa
  • Patent number: 12164134
    Abstract: A method of reducing optical artifacts includes injecting a light beam generated by an illumination source into a polarizing beam splitter (PBS), reflecting a spatially defined portion of the light beam from a display panel, reflecting, at an interface in the PBS, the spatially defined portion of the light beam towards a projector lens, passing at least a portion of the spatially defined portion of the light beam through a circular polarizer disposed between the PBS and the projector lens, reflecting, by one or more elements of the projector lens, a return portion of the spatially defined portion of the light beam, and attenuating, at the circular polarizer, the return portion of the spatially defined portion of the light beam.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: December 10, 2024
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Richard Curtis, Hui-Chuan Cheng, Paul M. Greco, William Hudson Welch, Eric C. Browy, Miller Harry Schuck, III, Bradley Jay Sissom
  • Patent number: 12164121
    Abstract: In the optical composite sheet according to an embodiment, optical functional elements such as a prism sheet and a light diffusion layer are combined, and a light absorbing layer that selectively absorbs light of a specific wavelength band is inserted, so that the optical performance and color gamut can be enhanced as compared with the prior art. In particular, it is possible to minimize the decrease in luminance due to the absorption of light by the light absorbing layer while enhancing the color gamut by adjusting the lamination configuration of the optical composite sheet.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: December 10, 2024
    Assignee: SK MICROWORKS SOLUTIONS CO., LTD.
    Inventors: Kyoo Choong Cho, Tae Hoon Kim, Yong Jae Choe, Jae Ho Ko
  • Patent number: 12147140
    Abstract: An anti-peeping display device including a display panel and a viewing angle control module, which are stacked, is provided. The viewing angle control module includes a first polarization layer, a first liquid crystal layer, a second polarization layer, a second liquid crystal layer and a third polarization layer that are sequentially stacked. The phase retardations of the first liquid crystal layer and the second liquid crystal layer are within 700 nm to 1200 nm.
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: November 19, 2024
    Assignee: AUO Corporation
    Inventors: Min-Hsuan Chiu, Wei-Ming Cheng
  • Patent number: 12149673
    Abstract: A system and method are provided for reconstructing 3-D point cloud. A light source generates light that is received by a polarization field generator, which generates a polarization field that illuminates the target object being imaged such that each outgoing ray has a unique polarization state. A camera captures images of the illuminated target object and the captured images are received by a processor that: (1) performs a polarization field decoding algorithm that decodes the polarization field to obtain a set of incident rays; (2) performs a camera ray decoding algorithm to obtain a set of camera rays; (3) performs a ray-ray intersection algorithm that determines intersection points where the incident rays and the camera rays intersect; and (4) performs a 3-D reconstruction algorithm that uses the set of incident rays, the set of camera rays and the intersection points to reconstruct a 3-D point cloud of the target object.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: November 19, 2024
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventors: Jinwei Ye, Jie Lu
  • Patent number: 12147130
    Abstract: According to one embodiment, in a display device a first panel includes a first polarizing plate, a second polarizing plate, and a first liquid crystal panel interposed between the first polarizing plate and the second polarizing plate, a second panel includes a third polarizing plate, a fourth polarizing plate, and a second liquid crystal panel interposed between the third polarizing plate and the fourth polarizing plat, and a polarizing plate, which is located second from a surface close to an illumination device and a surface closest to an observer, has an extinction ratio that is lower than that of each of the other polarizing plates.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: November 19, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kazunari Tomizawa, Tsutomu Harada, Junji Kobashi, Shinichiro Oka, Yosuke Hyodo
  • Patent number: 12135425
    Abstract: Provided is a waveguide structure including an output grating, a polarization conversion element provided parallel to the output grating, and a polarization separation element provided between the output grating and the polarization conversion element, wherein the polarization separation element is configured to transmit, to the output grating, light having a first polarization direction among light incident on the polarization separation element, and reflect, to the polarization conversion element, light having a second polarization direction different from the light having the first polarization direction among the light incident on the polarization separation element.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: November 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chilsung Choi, Hoon Song, Hongseok Lee
  • Patent number: 12124144
    Abstract: Provided is an optically anisotropic layer formed of a liquid crystal compound, which includes first and second layers in direct contact along a thickness direction, an alignment state of the liquid crystal compound in the first layer is different from the second layer, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin<1.10 where a region within a square having a largest size that can be drawn on a surface of the optically anisotropic layer is subdivided into 64 square-shaped sub-regions having the same area, a thickness d1 of the first layer and a thickness d2 of the second layer at a center position of the sub-region are obtained, X represented by Expression (1) X=d1/(d1+d2) for each sub-region is calculated, and among the calculated 64 X's, a maximum value is defined as Xmax and a minimum value is defined as Xmin.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: October 22, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Shinpei Yoshida, Yuta Takahashi, Kentaro Yamura, Keisuke Kodama
  • Patent number: 12117689
    Abstract: The present application provides a polarizer and a liquid crystal display device. The polarizer includes a resin layer, the resin layer includes a whisker, an acute angle is formed by a long-axis direction of each of the whiskers and a bottom surface of the resin layer, and the acute angle is greater than 0° and less than or equal to 40°.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: October 15, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ji Li, Hanming Li, Guang Zeng, Fang Tan, Hongshan Yin, Kai Chen
  • Patent number: 12114523
    Abstract: An optically anisotropic layered body including a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies the following formula (1), the second optically anisotropic layer satisfies the following formula (2), and the optically anisotropic layered body satisfies the following formulae (3) and (4): nx1?ny1>nz1??Formula (1), ny2<nx2?nz2??Formula (2), Re(450)<Re(550)<Re(650)??Formula (3), and 0<NZ<1.0??Formula (4), wherein nx1, ny1, nz1, nx2, ny2, nz2, Re(450), Re(550), Re(650) and NZ are as defined in the Specification.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 8, 2024
    Assignee: ZEON CORPORATION
    Inventor: Kazuhiro Osato
  • Patent number: 12114117
    Abstract: An apparatus includes a display panel configured to display an image, a vibration apparatus disposed at a rear surface of the display panel and having the display panel vibrated; and a supporting member including a plurality of holes that at least partly overlaps with the vibration apparatus, wherein the plurality of holes are arranged in a first direction and a second direction intersecting with the first direction, thereby enhancing a sound characteristic and a sound pressure level characteristic of the apparatus.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: October 8, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Joongsup Han, Yongjoon Kim, Sungtae Lee, Sungsu Ham
  • Patent number: 12103292
    Abstract: The present invention provides: a laminate which has excellent moisture-heat resistance and includes a light-absorbing anisotropic layer sandwiched between pressure sensitive adhesive layers; and an image display device using the same. The laminate includes a pressure sensitive adhesive layer, a light-absorbing anisotropic layer, and a pressure sensitive adhesive layer in this order, in which the light-absorbing anisotropic layer contains an organic dichroic substance, a thickness of the light-absorbing anisotropic layer is 5 ?m or less, the pressure sensitive adhesive layer and the pressure sensitive adhesive layer are each a pressure sensitive adhesive layer at a closest position as viewed from the light-absorbing anisotropic layer in the laminate, and H represented by Expression (I) is 10.0 or less.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: October 1, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Yuya Hamaguchi, Takehiro Kasahara, Naoki Koito
  • Patent number: 12099190
    Abstract: A waveguide is provided. The waveguide includes a substrate having two outer surfaces for propagating a beam of light in the substrate by reflecting the beam from the two outer surfaces. The waveguide includes at least one polarization volume hologram (PVH) grating to couple light in and/or out of the waveguide. The PVH grating may be a multi-layer PVH grating with graded birefringence.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: September 24, 2024
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Sihui He, Maxwell Parsons, Fenglin Peng, Miaomiao Xu, Yang Yang, Yu Shi, Dianmin Lin
  • Patent number: 12087807
    Abstract: A display device includes a first substrate, a first connection line disposed on a surface of the first substrate, a thin film transistor layer disposed on the first connection line, the thin film transistor layer including a plurality of thin film transistors, a first pad portion disposed on another surface of the first substrate, and a plurality of conductive parts disposed in the first substrate, including a material different from those of the first connection line and the first pad portion, and electrically connecting the first connection line and the first pad portion. The plurality of conductive parts include carbon nanotubes.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: September 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jun Mo Im
  • Patent number: 12078891
    Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of each of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of each of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of each of the first strip electrode and the second strip electrode is orthogonal to the extension direction of each of the third strip electrode and the fourth strip electrode.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: September 3, 2024
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Takeo Koito, Koichi Nagao, Shinichiro Tanaka
  • Patent number: 12078897
    Abstract: The display panel includes: a display substrate, wherein the display substrate includes a color film substrate and an array substrate, a surface of the color film substrate away from the array substrate is provided with a color film polarizer, at least two preset points are provided on the display substrate, the at least two preset points are electrically connected to the color film polarizer, and the at least two preset points are electrically connected to the driving circuit, so as to form at least one first anti-static ring; and at least one grounding line, wherein the at least one grounding line is electrically connected to the array substrate, and electrically connected to the driving circuit, so as to form at least one second anti-static ring surrounding the display substrate. A display device is also provided.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: September 3, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jinliang Hu, Chengyong Zhan, Jian Ma, Jingsen Li, Ran Zhang
  • Patent number: 12073800
    Abstract: A stacked-screen display device and a method for controlling a display device are provided. The stacked-screen display device includes a backlight module, a light control panel and a display panel which are stacked in sequence, where the backlight module includes a backplane, a reflector and a diffuser which are stacked in sequence, and the reflector is provided with a plurality of light-emitting units, the backlight module is provided with temperature sensors, the temperature sensors are configured to detect the temperature of the backlight module to compensate the display panel according to the temperature.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: August 27, 2024
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xin Chen, Kai Diao, Qingna Hou, Meizhen Chen, Hongzhou Xie, Renhui Yu, Ying Tian, Xiaoyang Liu, Hui Yu, Chengkun Liu
  • Patent number: 12072582
    Abstract: A transparent substrate for a liquid crystal device includes an alignment layer that regulates an alignment direction of liquid crystal molecules contained in a liquid crystal layer of the liquid crystal device, and a base layer on which the alignment layer is formed. The transparent substrate includes a first surface and a second surface opposite the first surface. The first surface is a surface of the alignment layer, and the second surface is a surface of the base layer. The coefficient of static friction between the first surface and the second surface is less than or equal to 1.3. The transparent substrate has a hardness of F or higher in a pencil harness test on the first surface or on a surface of the base layer opposite the second surface.
    Type: Grant
    Filed: October 19, 2023
    Date of Patent: August 27, 2024
    Assignee: TOPPAN Inc.
    Inventors: Yusuke Takahashi, Yuji Kataoka
  • Patent number: 12065078
    Abstract: Mirrors including reflective backlit displays are described. In particular, mirrors including backlit displays with a backlight, a liquid crystal cell including a liquid crystal layer disposed between two opposing transparent substrate layers, a first reflective polarizer, and a second reflective polarizer are described. The first and second reflective polarizers are each directly laminated to one of the opposing transparent substrate layers. Mirrors described herein may be configured as vehicle rear-view mirrors.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: August 20, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kazuhiko Toyooka
  • Patent number: 12060010
    Abstract: A vehicle can include a window including an interior side and an exterior side. The vehicle can include a camera located on an exterior of the vehicle. The camera can be operatively positioned to capture visual data of a blind spot of an external environment of the vehicle. The vehicle can include a dual-sided transparent display forming at least a portion of the window. The vehicle can include a processor operatively connected to the camera and the dual-sided transparent display. The processor can be configured to selectively cause the dual-sided transparent display to display exterior visual information on the exterior side. The processor can be configured to selectively cause the dual-sided transparent to display interior visual information on the interior side. The interior visual information can include the visual data of the blind spot of the vehicle.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: August 13, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Sean P. Rodrigues, Hiroshi Ukegawa
  • Patent number: 12055812
    Abstract: A display panel is provided. The display panel includes a base substrate; a bank layer on the base substrate, the bank layer defining a plurality of bank apertures; a quantum dots material layer on the base substrate, the quantum dots material layer comprising a plurality of quantum dots blocks respectively in at least some of the plurality of bank apertures; a barrier coating layer in a respective one of the plurality of bank apertures; and an encapsulating layer on a side of the barrier coating layer closer to the base substrate. At least a portion of the barrier coating layer is in direct contact with a portion of the encapsulating layer.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: August 6, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Haitao Huang, Shi Shu, Chuanxiang Xu, Liuqing Li, Zhao Cui, Renquan Gu
  • Patent number: 12044932
    Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of each of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of each of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of each of the first strip electrode and the second strip electrode is orthogonal to the extension direction of each of the third strip electrode and the fourth strip electrode.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: July 23, 2024
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Takeo Koito, Koichi Nagao, Shinichiro Tanaka
  • Patent number: 12038634
    Abstract: A cholesteric liquid crystal composite display device includes a cholesteric liquid crystal reflective display device and a transmissive display device. The transmissive display device is located below the cholesteric liquid crystal reflective display device. When the cholesteric liquid crystal reflective display device is displayed in a transparent state, the light transmittance of the cholesteric liquid crystal reflective display device is higher than that of the cholesteric liquid crystal reflective display device when it is displayed in a dark state through a rated driving mode. Thereby, the display of the cholesteric liquid crystal composite display device is made clearer and the display quality is improved.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: July 16, 2024
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Cheng-Hung Yao, Chi-Chang Liao
  • Patent number: 12030382
    Abstract: A vehicle can include a window. The window can include an interior side and an exterior side. The vehicle can include a camera operatively positioned to capture visual data of a portion of an exterior environment of the vehicle. The vehicle can include a dual-sided transparent display forming at least a portion of the window. The vehicle can include a processor operatively connected to the camera and the dual-sided transparent display. The processor can be configured to selectively cause the dual-sided transparent display to display exterior visual information on the exterior side. The processor can be configured to cause the dual-sided transparent display to display interior visual information on the interior side. The interior visual information can include the visual data of the portion of the exterior environment of the vehicle.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: July 9, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Sean P. Rodrigues, Frederico Marcolino Quintao Severgnini, Ercan Mehmet Dede
  • Patent number: 12008970
    Abstract: A display device is provided. The display device includes a mirror display, a three-dimensional camera positioned toward a front direction of the mirror display, and a controller configured to detect facial contours of a user from three-dimensional face images of the user photographed at at least two different time points by the three-dimensional camera, identify a change of the facial contours between the two time points based on the detected facial contours, and control the mirror display to display information about the change of the facial contours.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: June 11, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunjoon Choo, Hyunsoo Jeong, Jonghwa Choi, Jongjin Ko, Kwangyoun Kim, Jangwoo Lee, Kyungah Chang
  • Patent number: 11991900
    Abstract: An organic light emitting diode display is provided. The organic light emitting diode display comprises an organic light emitting diode panel, a quarter-wavelength retarder disposed on the organic light emitting diode panel, a polarizer disposed on the quarter-wavelength retarder, an adhesive layer disposed on the polarizer and a diffraction grating film adhered to the polarizer by the adhesive layer. The diffraction grating film comprises a substrate and a first diffraction grating layer comprising a plurality of first gratings aligned with a first direction disposed on the substrate.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: May 21, 2024
    Assignee: BenQ Materials Corporation
    Inventors: Wei-Feng Xu, Cyun-Tai Hong, Chen-Kuan Kuo
  • Patent number: 11988933
    Abstract: According to one embodiment, a display device includes a display panel configured to modulate a first polarization component, a first viewing angle control panel including a first liquid crystal layer containing twisted liquid crystal molecules, a second viewing angle control panel including a second liquid crystal layer containing twisted liquid crystal molecules, and a polarization axis rotation element provided between the first viewing angle control panel and the display panel. A second polarization axis of a second polarization component which passed through the first viewing angle control panel is different from a first polarization axis of the first polarization component. The polarization axis rotation element is configured to rotate the second polarization axis.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: May 21, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventor: Toshiharu Matsushima
  • Patent number: 11977308
    Abstract: An electrically controlled birefringence liquid crystal display device performs a normally black display. The display device includes a liquid crystal display panel including a liquid crystal layer and a reflective portion to reflect light that is incident through a display surface of the liquid crystal display panel and that passes through the liquid crystal layer, a first polarizing plate on the display surface, and a half-wavelength plate between the liquid crystal display panel and the first polarizing plate. A phase difference ?nd?1 of the liquid crystal layer is less than a half of a phase difference ?nd?2 of the half-wavelength plate. The phase difference ?nd?2 of the half-wavelength plate indicates a positively dispersive wavelength, and a low axis of the half-wavelength plate intersects with an orientation axis of liquid crystal molecules in the liquid crystal layer under no electric field being applied.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 7, 2024
    Assignee: Kyocera Corporation
    Inventor: Yuji Soda
  • Patent number: 11960139
    Abstract: The present technology relates to a camera module that is enabled to have a lower height. The camera module includes a supporting component that includes an opening through which light from a lens collecting the light passes, the supporting component supporting an optical component between the lens and an imaging element that performs photoelectric conversion of the light, the optical component being placed so as to cover the opening and being supported on a side of the supporting component closer to the imaging element. In addition, around the opening, there is disposed a sloped portion inclined in the thickness direction of the supporting component, and the supporting component is placed such that the slope of the sloped portion and the lens face each other.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 16, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Eiichiro Dobashi
  • Patent number: 11960178
    Abstract: According to an aspect, a display device includes: an array substrate comprising a plurality of pixel electrodes; a counter substrate comprising a common electrode in a position at least overlapping the pixel electrodes; a liquid crystal layer between the array substrate and the counter substrate; and a light source disposed so as to emit light into a side surface of the array substrate or a side surface of the counter substrate. The array substrate includes, in a display region: a plurality of signal lines arranged in a first direction with spaces between the signal lines; a plurality of scanning lines arranged in a second direction with spaces between the scanning lines; and common potential wiring provided outside the display region. The counter substrate comprises light-blocking coupling wiring that couples the common electrode to a conductive first power feeding portion.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: April 16, 2024
    Assignee: Japan Display Inc.
    Inventor: Yoshihide Ohue