With Integral Optical Element For Guiding Or Distributing Light From The Light Source Patents (Class 349/62)
  • Patent number: 12163646
    Abstract: A side-emitting downlight with an integrated light bar is provided in this disclosure, which includes a face frame and a back plate. An annular projection is provided between the face frame and the back plate. The annular projection is provided with a notch, a first light bar is attacked to the inner peripheral wall of the annular projection, a second light bar is attacked to the outer peripheral wall of the annular projection and the first light bar and the second light bar are integrated and pass through the notch. In the side-emitting downlight with the integrated light bar according to the disclosure, with an uninterrupted integrated light bar, a function of inner-side and outer-side light emitting in two opposite directions can be realized, continuity and integrity of a circuit can be maintained, collocation of various color temperatures and simultaneous inner-side and outer-side light emitting can be realized.
    Type: Grant
    Filed: January 17, 2024
    Date of Patent: December 10, 2024
    Assignee: JOININ GLOBAL PTE. LTD.
    Inventor: Hongbing Zheng
  • Patent number: 12099273
    Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and high emitting efficiency. A concrete structure of the inventions is as follows. A lighting device including a first light guide and a second light guide stacked on the first light guide, a reflecting sheet disposed under the first light guide, and a prism sheet disposed on the first light guide, in which a concentric first prism array is formed on the prism sheet, a plurality of first LEDs are disposed along a circumferential direction of a side wall of a first hole of the first light guide, a plurality of second LEDs are disposed along a circumferential direction of a side wall of a second hole of the second light guide, and the plurality of the first LEDs and the plurality of the second LEDs are displaced in azimuth direction.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: September 24, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Makoto Hasegawa, Nobuyuki Suzuki, Masafumi Okada
  • Patent number: 12087251
    Abstract: A method and an apparatus for controlling display screen, and a storage medium are provided. The method includes: acquiring temperature information of a target region of a display control chip, in which the display control chip is configured to control display of a display screen by controlling display of a LED light plate of a display module of an electronic device; adjusting brightness of the display screen of the electronic device according to the temperature information of the target region.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: September 10, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Rui Guo, Zhaonan Liu
  • Patent number: 12032185
    Abstract: A color filter (CF) substrate includes a CF structure disposed on a base, and multiple pixel regions each including multiple sub-pixel regions. The CF structure includes a nanostructure layer including multiple nanostructures and a light guide structure layer including multiple light guide structures, sequentially provided on the base. Each light guide structure is in a corresponding pixel region, and includes multiple light guide sub-portions. Each light guide sub-portion is in a corresponding sub-pixel region. Each sub-pixel region corresponds to a nanostructure, and each nanostructure is in a corresponding sub-pixel region. Each of the light guide sub-portions in one pixel region is configured such that light incident on the light guide sub-portions exits at different angles and enters into the nanostructure in the sub-pixel region corresponding thereto. Each nanostructure is configured such that light exiting from the sub-pixel region corresponding thereto has a predetermined color.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: July 9, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengpeng Yao, Lei Guo, Zhendong Li, Wei Zhang, Xia Shi, Jiaqing Liu
  • Patent number: 11988916
    Abstract: According to one embodiment, a display device includes a display panel that includes a display portion including pixels and a non-display portion including an opening, an illumination device, and a color separation element provided between the display panel and the illumination device. The color separation element includes a first element overlapping the pixel and a second element overlapping the opening, the first element separates illumination light from the illumination device into light of a plurality of colors and irradiates the pixel with the light, and the second element separates illumination light from the illumination device into light of a plurality of colors and irradiates the opening with the light.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: May 21, 2024
    Assignee: Japan Display Inc.
    Inventors: Chikyu Nakaoka, Masaaki Kabe
  • Patent number: 11982900
    Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: May 14, 2024
    Assignee: Japan Display Inc.
    Inventors: Akio Takimoto, Toshiki Kaneko, Takuo Kaitoh, Kazuhiro Nishiyama, Hiroyuki Kimura
  • Patent number: 11982859
    Abstract: A lens includes a lens tube and the optical element mounted in the lens tube. The lens tube has a top surface, and a conductive layer is disposed on a surface that is of the optical element and that faces a side on which the top surface is located. The lens further includes antistatic structure disposed on the top surface, and an electrostatic conducting wire disposed in a tube wall or on an inner surface or an outer surface of the lens tube. One end of the electrostatic conducting wire is electrically coupled to the antistatic structure, and the other end is grounded.
    Type: Grant
    Filed: October 12, 2019
    Date of Patent: May 14, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yingyong He, Wei Tang, Bin Shi
  • Patent number: 11977287
    Abstract: A display device is provided, including: a back plate; a plastic frame connected to the back plate; a backlight module; a privacy film on a light emitting side of the backlight module; and a dimming sheet on a side of privacy film away from the back plate, wherein the dimming sheet is configured to be capable of adjusting a viewing angle of the display device. The plastic frame includes a first surface and a side end face, the first surface is a surface of the plastic frame close to the dimming sheet, the side end face is a side face of the plastic frame close to the dimming sheet, the plastic frame further includes a chamfered portion at a transition position between the side end face and the first surface, and the chamfered portion has a rough surface that is configured for diffracting the light incident on the chamfered portion.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: May 7, 2024
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heling Zhu, Jie Liu, Xin Li, Bo Han, Hai Tang, Jianwei Qin, Jian Sang, Lu Yu, Haiwei Sun
  • Patent number: 11953716
    Abstract: The present disclosure relates to a spacer for an assembly of a backlight of a display. The disclosure additionally relates to an assembly for a backlight of a display having such a spacer, and to a display having a backlight having such an assembly. The spacer comprises at least one crosspiece. The crosspiece in this case has attachment surfaces for attachment of a first light guide and a second light guide and a receptacle for a sheet stack.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: April 9, 2024
    Assignee: Continental Automotive GmbH
    Inventors: Sait Kalender, Jörg Thomas, Oliver Jakoby, Nils Arnold
  • Patent number: 11947162
    Abstract: The present invention relates to a guiding apparatus for an imaging light path and a guiding method thereof. The guiding apparatus comprises at least one light-projection system to project at least one visible light beam and at least one light-guiding device disposed corresponding to the light-projection system. The light-guiding device has a first end, a second end, and a light path disposed between the first end and the second end. The visible light beam projected from the light-projection system is received at the first end and guided to an image-receiving object, including but not limited to the user's eyes, out of the second end through the light path to form a real or virtual image. The effects of high brightness of the visible light beam arriving at the image-receiving object, low consumption of light energy, and improved installation flexibility in a space-limited apparatus can be obtained.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: April 2, 2024
    Assignee: KDH Advanced Research Pty Ltd
    Inventors: Wei-Young Liang, Chung-Hsien Lu, Ranjith Rajasekharan Unnithan
  • Patent number: 11927793
    Abstract: A double-sided display device includes a first panel, a second panel, a light guide plate and a light source. The second panel is arranged opposite to the first panel. The light guide plate is arranged between the first panel and the second panel, and includes a main body portion including a first surface and a second surface, a first pattern arranged on the first surface, and a second pattern arranged on the second surface. The light source is arranged adjacent to the light guide plate. The first pattern is different from the second pattern.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: March 12, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: Yi-Hui Lee, Kuan-Chou Chen, Yung-Chih Cheng
  • Patent number: 11892675
    Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: February 6, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Yuji Maede, Shinichi Komura, Hiroaki Kijima
  • Patent number: 11874549
    Abstract: Provided are an optical element that can achieve both color difference control and luminance reduction at an oblique viewing angle, and a liquid crystal display device including the optical element and having excellent display quality. The optical element includes: a first polarizer; a first phase difference layer; a second phase difference layer; and a second polarizer, the first polarizer, the first phase difference layer, the second phase difference layer, and the second polarizer being arranged in the stated order, the first phase difference layer satisfying the formula nx>ny?nz, the second phase difference layer satisfying the formula nz>nx?ny, the first polarizer and the second polarizer being linear polarizers, transmission axes of the first polarizer and the second polarizer being parallel to each other, a slow axis of the first phase difference layer being orthogonal to a polarization axis of the first polarizer.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: January 16, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Ryosuke Saigusa, Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa
  • Patent number: 11867996
    Abstract: A surface finishing method, an anti-glare coating, and a display device having same are provided. The surface finishing method includes adding diffusion particles which have a density less than that of a resin material, and controlling the thickness of the resin material in an anti-glare material coated on a surface of a substrate to be greater than the particle size of the diffusion particles, so that the diffusion particles are evenly dispersed in the resin layer, and a part of the volume of the diffusion particles are exposed on a surface of the resin layer. Thus, the uniformity of the surface haze of the anti-glare coating can be enhanced, and flashing points of the display device can be avoided.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 9, 2024
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chingyuan Cheng
  • Patent number: 11860480
    Abstract: The present invention provides a liquid crystal display device having excellent display quality and suppressed occurrence of halo. The liquid crystal display device of the present invention is a liquid crystal display device including, in the following order, a first polarizer, a liquid crystal cell, a second polarizer, and a direct type backlight that uses a point light source, in which a light control member is further provided between the second polarizer and the direct type backlight, and the liquid crystal display device satisfies relationships of the following Expression (1) 70%?(I20/I0)×100?90%, Expression (2) 10%?(I40/I0)×100?35%, and Expression (3) 1%?(I60/I0)×100?20%.
    Type: Grant
    Filed: March 8, 2023
    Date of Patent: January 2, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Suzuki, Tatsuya Iwasaki, Katsufumi Ohmuro
  • Patent number: 11846845
    Abstract: An example of an apparatus is provided. The apparatus includes a display portion and a camera. In addition, the apparatus includes a thin film transistor substrate extending over the display portion and the camera. Furthermore, the apparatus includes an image generation layer disposed under the thin film transistor substrate within the display portion. Also, the apparatus includes a polymer dispersed liquid crystal disposed between the thin film transistor substrate and the camera. The polymer dispersed liquid crystal is to be switched between an opaque state and a clear state. The opaque state is to block the camera from receiving imaging light. The clear state allows light to pass through the polymer dispersed liquid crystal.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: December 19, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hsing-Hung Hsieh, Alexander Wayne Clark, Ann Alejandro Villegas
  • Patent number: 11787971
    Abstract: A polarizing plate, an image display device comprising the same, and a photocurable composition for a polarizing plate protective layer are provided. The polarizing plate includes a polarizer; and a protective layer in contact with at least one surface of the polarizer. The protective layer is a cured material of a photocurable composition for a polarizing plate protective layer including a photopolymerizable compound, and a photocation polymerization initiator. The photopolymerizable compound includes a first epoxy-based compound, a second epoxy-based compound and an oxetane compound.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: October 17, 2023
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Mi So Lee, Sanghun Han, Yoonkyung Kwon
  • Patent number: 11747673
    Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: September 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Pil Jeon, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-jin Cho, Suk-ju Choi
  • Patent number: 11700059
    Abstract: A display device includes imaging unit (101) to generate a captured image, image recognizer (102) to recognize whether or not the captured image contains a reception terminal, light emitter (106) to emit light in accordance with a modulation signal, and transmission controller (103) and light emission controller (105) to control driving of light emitter (106) based on a result recognized by image recognizer (102).
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: July 11, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shutai Okamura, Masahiko Yamamoto, Toshihiro Ezaki, Satoshi Ohyama, Takeshi Hatakeyama
  • Patent number: 11693254
    Abstract: A light field display device including: a display panel including a plurality of subpixels each emitting a light field; and a lenticular lens array on the display panel and including a plurality of lenticular lenses, wherein the plurality of lenticular lenses correspond to a plurality of subpixel groups each including the plurality of subpixels, and wherein a width of each of the plurality of subpixel groups is greater than a width of each of the plurality of lenticular lenses.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: July 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Ju-Seong Park, Myung-Soo Park, Dong-Yeon Kim, Young-Min Kim, Se-Wan Oh
  • Patent number: 11650686
    Abstract: A unitarily white touch display comprises: a cover lens, a viewing area, from an upper surface to a lower surface of the cover lens, formed in the middle of the cover lens; a touch module disposed under the cover lens to provide touch functions; a light valve module disposed under the touch module and filled with a polymer dispersed liquid crystal layer; a microstructure optical film disposed under the light valve module, and a second surface of the microstructure optical film composed of a plurality of micro-prisms. When incident light enters the touch display, the incident light is scattered by the polymer liquid crystal module, and part of the incident light is reflected by the microstructure optical film, re-transmitted and scattered through the polymer liquid crystal module, so that a user can observe foggy white at the viewing area of the touch display.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 16, 2023
    Assignee: EMERGING DISPLAY TECHNOLOGIES CORP.
    Inventors: Po-Tsun Liu, Chi-Chih Chang
  • Patent number: 11644703
    Abstract: A liquid crystal display device includes a first liquid crystal display panel bonded to a rear face of a front panel, a second liquid crystal display panel bonded to the rear face of the front panel and located side by side with the first liquid crystal display panel, a light-blocking rib disposed in a gap between the first liquid crystal display panel and the second liquid crystal display panel, a first backlight disposed to be opposite to the first liquid crystal display panel, and a second backlight disposed to be opposite to the second liquid crystal display panel. The rib includes a first corner and a second corner. A corner of the first liquid crystal display panel and a corner of the first backlight are in contact against inside of the first corner. A corner of the second backlight is in contact against inside of the second corner.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: May 9, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Tomoharu Yokoyama
  • Patent number: 11586068
    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: February 8, 2022
    Date of Patent: February 21, 2023
    Assignee: Au Optronics Corporation
    Inventors: Min-Hsuan Chiu, Chih-Hao Chen, Seok-Lyul Lee, Syuan-Ling Yang
  • Patent number: 11550185
    Abstract: A backlight unit according to various embodiments of the disclosure may include a light source, a light guide plate configured to guide light emitted from the light source and disposed to face in a first direction, and an optical film disposed over the light guide plate. The optical film may include a first prism sheet including first prism structures arranged side by side to each other along a second direction perpendicular to the first direction, and a second prism sheet disposed over the first prism sheet and including second prism structures arranged side by side to each other along a third direction forming an acute angle with the second direction.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: January 10, 2023
    Assignee: LMS CO., LTD.
    Inventors: Jinhwan Kim, Sungsik Cho, Woojong Lee, Changgoo Park
  • Patent number: 11543701
    Abstract: The present application relates to a lightness adjusting method for a display system. The method includes the steps of: writing a first driving signal into a display panel; controlling a first lens and a backlight module to be turned on simultaneously, where a plurality of light-emitting elements of the backlight module are turned on simultaneously, and the first lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; adjusting a first turn-on time of each light-emitting element; controlling a second lens and the backlight module to be turned on simultaneously, where the plurality of light-emitting elements of the backlight module are turned on simultaneously, and the second lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; and adjusting a second turn-on time of each light-emitting element.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 3, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventor: Chih Tsung Kang
  • Patent number: 11526050
    Abstract: A display device is provided. The display device includes a first substrate, a first display structure disposed on the first substrate and a second display structure disposed on the first substrate. The first display structure and the second display structure are different from each other and are selected from a liquid-crystal display, an organic light-emitting diode display, an inorganic light-emitting diode display or a laser display. The display device also includes a first polarizing structure. The first polarizing structure is disposed on the first display structure and the second display structure.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 13, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Jia-Yuan Chen, Kuan-Feng Lee, Tsung-Han Tsai, Yuan-Lin Wu
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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