With Integral Optical Element For Guiding Or Distributing Light From The Light Source Patents (Class 349/62)
  • Patent number: 11500255
    Abstract: Disclosed is an optical assembly having a first variable transmission layer comprising a first electro-optically active material between a first pair of substrates, a second variable transmission layer comprising a second electro-optically active material between a second pair of substrates, and an electronically switchable birefringent layer, that is capable of altering the phase of incident light, situated between the first and second variable transmission layers. The layers are arranged such that light passing through the optical assembly can be altered based on the voltage applied to each layer. The light transmission levels can be altered between maximally transmissive, minimally transmissive, and semi-transparent levels between the maximally and minimally transmissive levels.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: November 15, 2022
    Assignee: ALPHAMICRON INCORPORATED
    Inventors: Bahman Taheri, Pedro Coutino Soto
  • Patent number: 11499696
    Abstract: A light emitting module including a substrate, a light emitting device disposed on the substrate, and a lens disposed above the light emitting device to disperse light, the lens including a light incident portion through which light emitted from the light emitting device enters the lens and a light exit portion through which the light exits the lens, in which each of the light incident portion and the light exit portion has a major axis and a minor axis in plan view, the major axis of the light incident portion is disposed at a right angle with respect to the major axis of the light exit portion, the lens includes a plurality of legs formed on a lower surface of the lens to support the lens, and at least one of the legs includes a leg protrusion protruding downwards from a lower surface thereof.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: November 15, 2022
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jae Eun Park, Eun Ju Kim
  • Patent number: 11460749
    Abstract: Resources of a system for controlling optically switchable windows may be used for a personal computing unit. The window system resources may include (i) a display associated with an optically switchable window, (ii) one or more processors of one or more controllers on a window network connected to a plurality of optically switchable windows in a building, wherein the one or more controllers are configured to vary tint states of the plurality of optically switchable windows in the building, (iii) memory of one or more controllers on the window network connected to the plurality of optically switchable windows in the building, and/or (iv) at least a part of the window network.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: October 4, 2022
    Assignee: View, Inc.
    Inventors: Nitesh Trikha, Stephen Clark Brown, Dhairya Shrivastava, Robert T. Rozbicki
  • Patent number: 11460624
    Abstract: A light guide (1) is presented. The light guide (1) comprises a body (2) made of a transparent polymer with nanoparticles (3) arranged therein, said body (2) comprising at least one locally deformed section (4) forming a local light out-coupling portion (6) of the light guide (1), wherein the local light out-coupling portion (6) comprises crazes (5) at, or in vicinity of, at least a portion of the nanoparticles (3) arranged in the at least one portion of the light guide (1), the crazes (5) are acting as light scatterers. Also a method for introducing a local light out-coupling portion (6) in a light guide (1) is presented.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 4, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Rifat Ata Mustafa Hikmet, Ties Van Bommel
  • Patent number: 11454753
    Abstract: The optical multilayer film, which comprises a laminate in which a base layer, a primer layer, and a hard coat layer are sequentially laminated, has enhanced mechanical properties while preventing rainbow stains and a reduction in the visibility by adjusting the in-plane retardation of the base layer and the refractive indices of the respective layers. Thus, the optical component and the display device, which comprise the optical multilayer film, have excellent optical characteristics and can operate normally even in harsh environments.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 27, 2022
    Assignee: SKC CO., LTD.
    Inventors: Young Min Heo, Kyu-Hun Kim, Sechul Lee, Seungwon Lee
  • Patent number: 11442215
    Abstract: According to one embodiment, a light emitting device includes a light guide plate, a prism sheet, and a lenticular lens, wherein, a plurality of first protrusions of the light guide plate are arranged along a first direction and extend along a second direction intersecting the first direction, a plurality of second protrusions of the light guide plate extend along the first direction and are arranged along the second direction, the prism sheet includes a plurality of third protrusions extending along the first direction and arranged in the second direction, and the lenticular lens includes a plurality of fourth protrusions arranged along the first direction and extending along the second direction.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: September 13, 2022
    Assignee: Japan Display Inc.
    Inventors: Makoto Hasegawa, Nobuyuki Suzuki, Masafumi Okada
  • Patent number: 11442308
    Abstract: A display device is provided, including a backlight module, a liquid crystal cell, a light guide body, a light-emitting unit, and a camera unit. The backlight module includes a backlight section and a through hole section, and the backlight section surrounds at least a portion of the through hole section. The liquid crystal cell is disposed on the backlight module. The light guide body is disposed in the through hole section. The light-emitting unit is disposed on a light incident surface of the light guide body. The camera unit is disposed on a first surface of the light guide body. The display device and a corresponding part of an opening area cannot display an image correctly, which is prevented.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: September 13, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Peng Zhang, Guanghui Liu, Chao Wang
  • Patent number: 11435572
    Abstract: An image display system includes an optical subsystem configured to emit a first light beam and a second light beam, wherein the first light beam illuminates a first portion of a composite field of view and the second beam illuminates a second portion of the composite field of view. A scanning mirror is positioned to intercept and reflect the first light beam and the second light beam. The system also has a waveguide with at least one input coupling optical element for receiving the first light beam and the second light beam into the waveguide. The waveguide also has an output coupling optical element for projecting a plurality of output light beams derived from the first light beam and the second light beam from the waveguide to illuminate the composite field of view.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 6, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li-Chuen Yeoh, Lionel Ernest Edwin, Barak Freedman, Vaibhav Mathur, Xiaoyang Zhang, Timothy Mark Dalrymple, Clinton Carlisle, Chulwoo Oh, Philip Premysler
  • Patent number: 11428979
    Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
  • Patent number: 11415732
    Abstract: The present invention provides a quantum dot display device and a manufacturing method thereof. The quantum dot display device includes a base substrate, a backlight, a color conversion layer disposed on a side of the backlight away from the base substrate, and an electro-fluidic shutter disposed on a side of the color conversion layer away from the backlight. The electro-fluidic shutter includes a plurality of shutter units, and a sealing portion is disposed between adjacent shutter units. Contrast of the quantum dot display device under strong ambient light is improved, which is beneficial for application in outdoor advertising displays and the like.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: August 16, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Su Pan
  • Patent number: 11415827
    Abstract: According to one embodiment, an electronic apparatus includes a liquid crystal panel including a liquid crystal layer, a first transparent electrode, an insulating film covering the first transparent electrode, a second transparent electrode disposed between the insulating film and the liquid crystal layer, and a modulation area in which the first transparent electrode and the second transparent are arranged alternately, a projection element overlapping the liquid crystal panel, and projecting linearly polarized infrared light toward the modulation area, and a detection element overlapping the liquid crystal panel, and detecting infrared light via the liquid crystal panel.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: August 16, 2022
    Assignee: Japan Display Inc.
    Inventor: Takeo Koito
  • Patent number: 11409164
    Abstract: A light conversion member includes a light conversion film, a first gas barrier, and a first base material. The light conversion film converts color of light from a specific color. The first gas barrier is located on a side of the light conversion film where the light to be converted is incident. The first gas barrier includes one or more gas barrier layers that prevent moisture and gas from entering the light conversion film. The first base material is located on an opposite side of the first gas barrier from a face on which the light conversion film is located. The first base material transmits the light and holds the light conversion film and the first gas barrier. For a light of the specific color, a light transmittance of the first base material combined with the first gas barrier is higher than a light transmittance of the first base material alone.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 9, 2022
    Assignee: TORAY ENGINEERING CO., LTD.
    Inventors: Takuya Onji, Masaki Mori
  • Patent number: 11402688
    Abstract: The present disclosure relates to an electronic apparatus, a display device, and a backlight module, and relates to relates to the field of display technologies. The backlight module includes a back panel, a light guide plate and a light bar. The back panel has a bottom plate and a peripheral plate surrounding edges of the bottom plate, the peripheral plate is provided with a limit structure protruding into an area surrounded by the peripheral plate; the light guide plate is provided within the peripheral plate; the light bar is provided between the peripheral plate and the light guide plate and abutting against the limit structure to be blocked by the limit structure in at least one of a direction perpendicular to the bottom plate and a circumferential direction of the peripheral plate.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 2, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Shixin Geng, Yu Zhang, Bochang Wang, Jiangfeng Zhang, Xu Chen
  • Patent number: 11402685
    Abstract: A display substrate includes a base, and at least one light output device and at least one reflecting device both disposed above the base. The at least one light output device and the at least one reflecting device are disposed adjacent to each other. Each reflecting device is configured to reflect incident light that is incident to the reflecting device in a direction perpendicular to the base into one or more light output devices disposed on a side of the reflecting device. Each light output device is configured to emit display light in response to the received incident light.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Dejiang Zhao
  • Patent number: 11402731
    Abstract: A microlens array substrate includes a substrate having a first surface and a plurality of recesses corresponding to a plurality of pixels, and a microlens array including a plurality of microlenses corresponding to the plurality of recesses. The microlenses each have a refractive index different from a refractive index of the substrate, and each have a light incident surface and a light exiting surface. The light incident surface has a first curvature region and a second curvature region. The second curvature region surrounds the first curvature region when viewed along the optical axis of one microlens and has a curvature greater than the curvature of the first curvature region. The light exiting surface includes a light collecting structure configured to converge the light incident via the light incident surface. The light collecting structure overlaps with part of the first curvature region when viewed along the optical axis.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 2, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Wakabayashi, Akihide Haruyama
  • Patent number: 11391874
    Abstract: An electronic device may have a display such as an organic light-emitting diode display. A compensation film may be used to correct the color shift in the display. The compensation film may include a layer of liquid crystals and dye aligned with the liquid crystals. The dye may be configured to absorb different amounts of light depending on an angle that the light passes through the compensation film. Higher angled light will have a longer path length through the compensation film and therefore more of the higher angled light will be absorbed by the dye. The dye may therefore compensate for the color shift that occurs at high viewing angles.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: July 19, 2022
    Assignee: Apple Inc.
    Inventors: Jung Yun Seuh, Se Hyun Ahn, Zhibing Ge
  • Patent number: 11391985
    Abstract: A display device includes a first substrate including a first surface and a second surface on the opposite side with respect to the first surface, a second surface having a third surface opposite the first surface and a fourth surface on the opposite side with respect to the third surface, and a liquid crystal layer disposed between the first substrate and the second substrate, the display device includes a first region and a second region in a plan view, the first substrate includes a first polarizer provided on the second surface and a second polarizer being overlapped with the second region and being laminated with the first polarizer, and the second substrate includes a third polarizer provided on the fourth surface and a fourth polarizer being overlapped with the second region and being laminated with the third polarizer.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: July 19, 2022
    Assignee: Japan Display Inc.
    Inventors: Mitsutaka Okita, Shinichi Komura
  • Patent number: 11378836
    Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: July 5, 2022
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Kentaro Okuyama
  • Patent number: 11372319
    Abstract: A liquid crystal display (LCD) projector with active color separation lighting includes a projection light source, a condenser, a collimating lens, an incident polarizer, a dichroic mirror, an LCD light valve, a color combination mirror, an outgoing polarizer, a field lens and a projection lens all of which are distributed in sequence according to a direction of light travel. In the present invention, RGB three primary color rays of the projection light source are irradiated on the RR, GR and BR of the LCD light valve, respectively, ?? of the light originally blocked by the CF and the light originally blocked by the BM pass as much as possible or even completely through R, G and B sub-pixels, which fundamentally improves the transmittance of the LCD light valve, so that the efficiency of the optical system is completely improved.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: June 28, 2022
    Assignee: NANHUA INTELLIGENT PRECISION MACHINE (SHENZHEN) CO., LTD.
    Inventor: Hanwen Guo
  • Patent number: 11373434
    Abstract: A fingerprint-recognition function in a backlit display device includes a cover plate, a display panel, a backlight module, and a fingerprint recognition module. The cover plate has an operating surface defining a touchable fingerprint identification area. The backlight module emits light for the display panel to display images and, as a first detection light, backlighting incident on the fingerprint identification area reflected by a fingerprint is taken and recognized by the recognition module. Along a thickness direction of the display device, a projection of the fingerprint identification module on the cover plate at least partially overlaps with the fingerprint identification area, and supplementary side-mounted sources emitting non-visible light enhance the accuracy of detection of the recognition module.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: June 28, 2022
    Assignee: JADARD TECHNOLOGY INC.
    Inventors: Hon-Yuan Leo, Jung-Tse Lee, Sheng-Hsiung Lin, Qing-Shan Yan
  • Patent number: 11346995
    Abstract: A backlight module includes a first light source, a first light guide plate, and an anti-peeping component, wherein the first light source is an edge-type light source of the first light guide plate, the first light guide plate is provided with a light emitting surface and a backlight surface that are opposite, wherein the anti-peeping component is on the light emitting surface, a refractive index of a dielectric in contact with the backlight surface is less than a refractive index of the first light guide plate; the anti-peeping component includes anti-peeping structures that is provided with a first surface proximal to the first light guide plate, a second surface distal from the first light guide plate, and two opposite third surfaces intersecting both the first surface and the second surface, an included angle between the third surface and the first surface being an obtuse angle.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 31, 2022
    Assignees: Hefei BOE Optoelectronics Technology Co., LTD., BOE Technology Group Co., LTD.
    Inventors: Hai Tang, Liang Gao
  • Patent number: 11347090
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer between the first substrate and the second substrate, a first light source and a second light source. The liquid crystal display panel is configured to provide a brightness selected from a first set or a second set, and the first light and the second light are configured to not emit light simultaneously. A driving method of the liquid crystal display panel and a display device including the liquid crystal display panel are further provided.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongxiao Li, Qian Wang, Wenqing Zhao, Song Yang
  • Patent number: 11340498
    Abstract: Provided is an illumination device that makes it possible to enhance utilization efficiency of light, and a display device that includes the illumination device. The illumination device includes: a light source that is configured to generate light of a first wavelength; a luminescent body that is configured to wavelength-convert the light of the first wavelength to light of a second wavelength, the second wavelength being different from the first wavelength; and a wavelength selective filter that is provided on a light-incident side of the luminescent body, the wavelength selective filter being configured to transmit the light of the first wavelength and to reflect the light of the second wavelength.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: May 24, 2022
    Assignee: SATURN LICENSING, LLC
    Inventor: Hirohisa Ishino
  • Patent number: 11342531
    Abstract: An organic light emitting diode (OLED) display panel, including an encapsulation layer, a polarizer, a touch function layer, an optical adhesive and a cover window, the polarizer is formed on the encapsulation layer. The touch function layer is formed on the polarizer. The optical adhesive is formed on the touch function layer. The cover window is formed on the optical adhesive. The touch function layer includes an inorganic protection sublayer, a first metal sublayer, a barrier sublayer, and a second metal sublayer formed on the polarizer in this order.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: May 24, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Chen Zhao
  • Patent number: 11327352
    Abstract: A display device includes a first substrate including a first side surface, a display area, and a pad area located outside of the display area and adjacent to the first side surface, a second substrate facing the first substrate and including a second side surface extending further outward than the first side surface of the first substrate, a printed circuit board electrically connected to the pad area of the first substrate and bent along the first side surface of the first substrate, and a light blocking chassis overlapping the printed circuit board and the first side surface of the first substrate.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Myoung Lee, In Ho Park, Joo Lark Son, Min Cheol Chae
  • Patent number: 11327215
    Abstract: The present disclosure provides a collimating backlight module, a preparation method thereof and a display device. The method for preparing the collimating backlight module includes: providing a light guide plate; forming a protective layer on a light emitting side of the light guide plate, where the protective layer simultaneously covers a light emitting area and a non-light emitting area of the light emitting side, a hollow area is formed on the protective layer, to expose the light emitting area of the light guide plate; and forming a light taking grating on the light emitting area of the light guide plate.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 10, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shuilang Dong, Xiandong Meng, Wenqu Liu, Jifeng Tan, Wei Tan
  • Patent number: 11316083
    Abstract: An embodiment of the present invention discloses a backlight module and a display device. The backlight module includes a circuit board. A side surface of the circuit board is provided with a plurality of light emitting elements spaced apart from each other. A light output surface of at least one of the light emitting elements is covered with a first encapsulation layer. A side surface of the first encapsulation layer away from the at least one light emitting elements is a curved surface.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: April 26, 2022
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yuexia Lin, Yongyuan Qiu
  • Patent number: 11300818
    Abstract: A frame assembly is adapted to fix at least a film, an outer edge of the film is provided with at least a first assembly portion, and the frame assembly comprises a back plate, a frame unit, and at least a fixing unit. The frame unit includes an outer frame portion disposed outside an outer edge of the back plate, and a holding portion connected to the outer frame portion, wherein the holding portion has a bottom surface and a top surface opposite to the bottom surface. The fixing unit is combined with the bottom surface of the holding portion, and the fixing unit includes a second assembly portion that is not covered by the holding portion and combined with the first assembly portion of the film, so that the film is fixed in the frame assembly.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 12, 2022
    Assignees: RADIANT(GUANGZHOU) OPTO-ELECTRONICS CO., LTD, RADIANT OPTO-ELECTRONICS CORPORATION
    Inventors: Ming-Cheng Lin, Yung-Chieh Chao, Cheng-An Hsu, Kuo-Hsuan Lu
  • Patent number: 11294229
    Abstract: The present disclosure relates to a backlight module and a display device. The backlight module includes: a heat sinking plate; a mold frame fixed to the heat sinking plate and surrounding a region on the heat sinking plate; and a reflection plate disposed in the region surrounded by the mold frame such that the reflection plate can be moved relative to the heat sinking plate.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: April 5, 2022
    Assignees: Beijing BOE Optoelectronics Technologyy Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongliang Lyu, Boning Wang, Yufei Liu, Yufeng Du
  • Patent number: 11294106
    Abstract: A unitary optical film stack comprising a light redirecting film assembly; a light diffusion film assembly; and an optical adhesive; wherein the light redirecting film assembly and the light diffusion film assembly are physically coupled non-continuously to minimize optical coupling.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 5, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Tri D. Pham, Qingbing Wang, Daniel J. Theis, Encai Hao, Keith R. Bruesewitz
  • Patent number: 11293609
    Abstract: An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 5, 2022
    Assignee: DMF, Inc.
    Inventors: Michael D. Danesh, Vincent Williams, Mark Jongewaard
  • Patent number: 11287688
    Abstract: A display apparatus includes a backlight source, a privacy filter disposed on the backlight source, a light adjusting panel disposed on the privacy filter, and a display panel disposed on the light adjusting panel. The light adjusting panel includes a first substrate, a first electrode, a second electrode, a first vertical alignment film disposed on the first substrate, a second substrate disposed opposite to the first substrate, a second vertical alignment film disposed on the second substrate, and a positive liquid crystal layer disposed between the first vertical alignment film and the second vertical alignment film. The first electrode and the second electrode are disposed on the first substrate. Here, the first electrode has a plurality of first slits, and a plurality of orthogonal projections of the first slits on the first substrate overlap an orthogonal projection of the second electrode on the first substrate.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: March 29, 2022
    Assignee: Au Optronics Corporation
    Inventors: Min-Hsuan Chiu, Chih-Hao Chen, Seok-Lyul Lee, Syuan-Ling Yang
  • Patent number: 11269118
    Abstract: A sheet used for coating an optical semiconductor element is used for directly or indirectly covering an optical semiconductor element, and includes a white layer containing white particles; and a light diffusion layer containing light-diffusing particles, in this order in a thickness direction.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 8, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Munehisa Mitani, Hirokazu Matsuda, Kazuaki Suzuki
  • Patent number: 11270628
    Abstract: A display panel, a display assembly, a display apparatus and a drive method therefor are disclosed. The display panel includes a first display area and at least one second display area. The first display area includes first sub-pixels, and the first sub-pixels are non-transparent sub-pixels. The at least one second display area includes second sub-pixels, and the second sub-pixels are transparent sub-pixels.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: March 8, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huabing Zhang, Zhichao Lv, Qiang Zhang, Weipin Hu, Chenyang Zhang
  • Patent number: 11262616
    Abstract: A backlight module and a manufacturing method thereof are disclosed. The backlight module includes a frame, a thin-film thermoelectric device set, a first heat conductive layer, a light emitting diode (LED) light, a bulk thermoelectric device set, and a second heat conductive layer. The manufacturing method for backlight module includes a device preparing step, a thin-film thermoelectric device set mounting step, a first heat conductive layer preparing step, an LED light mounting step, a bulk thermoelectric device set mounting step, and a bulk thermoelectric device set mounting step. The technical effect of the invention is to realize the heat dissipation and the recovery and utilization function of the waste heat.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: March 1, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Weikang Hou
  • Patent number: 11256017
    Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: February 22, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Shotaro Watanabe, Naoki Ishimi, Yoshinori Ito, Tomokazu Shimoda
  • Patent number: 11256117
    Abstract: An electro-optical system includes a voltage supply device, an active polarizing layer, a retarding layer, and a reflective layer. The active polarizing layer is electrically coupled to the voltage supply device. The active polarizing layer is configured to switch back and forth between a non-polarized state and a polarized state as the voltage supply device supplies varying levels of voltage. The retarding layer is configured to alter the polarization state of light traveling through it. The reflective layer is positioned adjacent to the retarding layer.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 22, 2022
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Paul Frederick Luther Weindorf, Qais Sharif, Brian Hayden, Elijah Louis Auger
  • Patent number: 11256093
    Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 22, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Richard Curtis, Bradley Jay Sissom, Hui-Chuan Cheng, Miller Harry Schuck, III, Samarth Bhargava, Erik Heath Arend
  • Patent number: 11249241
    Abstract: A diffusive reflector for a lighting apparatus comprising a backing part upon a surface of which is disposed an interface part(s) wherein the interface part(s) is at least partially diffusively reflective optically and/or the backing part is diffusively reflective optically. The interface part(s) is formed with a plurality of separate protrusions each adapted for making a separate respective contact interface with a surface of a light guide panel of the lighting apparatus to optically couple the backing part to the light guide panel via the interface part(s). The interface part(s) comprises an optically transmissive interface material arranged to form said contact interface such that the interfacial energy thereof is reduced so that air is driven from the contact interface. Consequently, the critical angle for total internal reflection of light guided by the light guide panel is increased at said contact interface.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 15, 2022
    Assignee: OPTRICAL LIMITED
    Inventor: Navin Suyal
  • Patent number: 11250814
    Abstract: A display device includes a PWM signal generating part configured to set a duty ratio for each period of a pulse width modulation signal, and configured to generate an intermediate gray scale signal including a signal including a first pulse width modulation signal continuous to a second pulse width modulation signal corresponding to two duty ratios closest to each other among M types of duty ratios, based on a signal related to luminance from an input device.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshitaka Nadami, Kazuhiko Yoda
  • Patent number: 11249255
    Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 15, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li Chuen Yeoh, Lionel Ernest Edwin, Hui-Chuan Cheng
  • Patent number: 11237422
    Abstract: According to one embodiment, a display device includes a display panel, a light emitting element, a light guide layer and a first optical layer. The display panel includes a first substrate, a second substrate opposed to the first substrate, and a polymer dispersed liquid crystal layer which is held between the first substrate and the second substrate and contains a polymer and a liquid crystal molecule. The light guide layer has a first surface opposed to the display panel, and an edge opposed to the light emitting element. The first optical layer is located between the display panel and the light guide layer. A refractive index of the first optical layer is lower than a refractive index of the light guide layer.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: February 1, 2022
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Kentaro Okuyama
  • Patent number: 11231542
    Abstract: A light deflection device including a flat, transparent light guide and a microstructure provided at least in regions on the light guide for decoupling light coupled into the light guide. The microstructure has microstructure elements and the microstructure elements in each case have a substantially point-like or line-like geometry for contact with the light guide. Further, a method for manufacturing a light deflection device, an illumination device, and use of a light deflection device or an illumination device are disclosed.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 25, 2022
    Assignee: temicon GmbH
    Inventor: Oliver Humbach
  • Patent number: 11231543
    Abstract: Provided is a light extraction member which can be obtained at an adequate cost, while achieving desired light output characteristics without requiring complicated design and structure, and which is easily combined with another member, while exhibiting excellent productivity and excellent handling properties. A light extraction member according to the present embodiment includes: a light guide part which has a first main surface being on the light output side and a second main surface being on the reverse side of the first main surface; and a light output control layer which is a predetermined pattern formed on the first main surface. With respect to this light extraction member, the refractive index n1 of the light guide part and the refractive index n2 of the light output control layer satisfy relational expression n1>n2; and the refractive index n2 of the light output control layer is from 1.01 to 1.30.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 25, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Akiko Sugino, Kozo Nakamura, Daisuke Hattori
  • Patent number: 11215880
    Abstract: The present disclosure is related to a display component. The display component may include a display module and a viewing angle switch module at a light-exiting side of the display module. The display module may include a plurality of columns of light-emitting pixels on a base substrate. Each of the light-emitting pixels may include a first electrode layer, a nanoparticle layer, and a transparent second electrode layer in this order on the base substrate. The nanoparticle layer may include nanoparticles of a first metal, each of the nanoparticles of the first metal having a convex protrusion on a side away from the first electrode layer. The transparent second electrode layer may include a nanoparticle of a second metal.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: January 4, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shumeng Sun, Hanyan Sun, Minghui Zhang, Inho Park, Weitao Chen
  • Patent number: 11215857
    Abstract: Provided are a double-sided display panel and display device. The double-sided display panel includes a light-emitting module, a first conversion panel and a second conversion panel, where the light-emitting module is placed between the first conversion panel and the second conversion panel, and the light-emitting module may provide light sources for the first conversion panel and the second conversion panel to cause the first conversion panel and/or the second conversion panel to display an image.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 4, 2022
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Xue Wang, Zhiyong Xiong, Liujing Fan, Ping An
  • Patent number: 11163192
    Abstract: A display apparatus including a first display surface and a second display surface opposite to each other is provided. The display apparatus includes a reflective display panel and a micro light-emitting diode (LED) panel. The reflective display panel is provided with the first display surface and a visible light transmittance of the reflective display panel is higher than 30%. The micro LED panel is disposed overlapping with the reflective display panel and provided with the second display surface. The micro LED panel includes a drive circuit layer and a plurality of micro LED elements. The drive circuit layer is located between the reflective display panel and the second display surface. The micro LED elements are electrically bonded to the drive circuit layer. A visible light transmittance of the micro LED panel is higher than 50%.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: November 2, 2021
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Yun-Li Li, Kuan-Yung Liao
  • Patent number: 11163102
    Abstract: A backlight module includes a light guide plate having an upper surface, a lower surface, and light-adjusting structures on the lower surface; an optical sheet disposed opposite to the upper surface of the light guide plate; and a light source disposed adjacent to the light guide plate, wherein a light emitted by the light source has a first brightness distribution in a first direction after passing through the light guide plate, and the first brightness distribution has a first maximum brightness corresponding to a first angle and a second maximum brightness corresponding to a second angle, and an absolute value of the first angle and an absolute value of the second angle are greater than 60 degrees, respectively, wherein an absolute value of a difference between the first maximum brightness and the second maximum brightness is less than or equal to 30% of the first maximum brightness.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 2, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Chao-Fang Chung, Yen-Liang Chen, Chen-Chia Wu, Chao-Chun Huang, Ming-Hui Chu
  • Patent number: 11156764
    Abstract: In view of delamination and other failure mechanisms, bonded assemblies are described herein comprising one or more reinforcement members reducing deflection of the assemblies under applied flexural loads, wherein the reinforcement members do not materially interfere with the functionality of the bonded assemblies. In one aspect, waveguide assemblies are provided. A waveguide assembly, in some embodiments, comprises a waveguide body and light extraction elements bonded to the waveguide body, wherein at least one reinforcement member is coupled to the waveguide assembly at one or more locations to reduce deflection of the waveguide assembly under an applied flexural load.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 26, 2021
    Assignee: IDEAL INDUSTRIES LIGHTING LLC
    Inventors: Claudio Girotto, Theodore Lowes, Chandan Bhat, Mark Youmans
  • Patent number: 11150516
    Abstract: A display according to an embodiment of the disclosure includes a light-emitting device and a display panel unit. The light-emitting device includes a light guide plate, a light source, a reflecting plate, and a dot pattern. The light guide plate has a light-outputting surface including a plurality of band-shaped projections extending in a direction orthogonal to the light-entering end surface. The light source is disposed along the light-entering end surface. The reflecting plate is disposed to face the rear surface of the light guide plate. The dot pattern fixes the light guide plate and the reflecting plate to each other and serves as a light scatterer. The display panel unit includes a display panel, an optical sheet, and a fixing layer. The fixing layer adheres or sticks the display panel and the optical sheet to each other and serves as a light diffuser.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 19, 2021
    Assignee: Saturn Licensing LLC
    Inventors: Takeshi Yamamoto, Kouki Miura, Tomoyuki Yoshimatsu