Stereoscopic Patents (Class 349/15)
  • Patent number: 11327385
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 10, 2022
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Patent number: 11314007
    Abstract: Provided is a circularly polarizing plate and a display device that includes the circularly polarizing plate. The circularly polarizing plate can be applied to a display device such as an organic light emitting display device to minimize blocking of light in the visible light region affecting image quality while blocking harmful ultraviolet rays appropriately and also has excellent durability.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 26, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Sun Kug Kim, Moon Soo Park, Sin Young Kim, Hyuk Yoon, Eun Soo Huh, Jong Hyun Jung
  • Patent number: 11315510
    Abstract: The present disclosure provides a display panel and a display device. The display panel is provided with a plurality of sub-pixels, the display panel including: a first substrate and a second substrate opposite to each other, and multistable liquid crystals between the first substrate and the second substrate; wherein, each of the sub-pixels is provided with a first electrode and a second electrode to generate an electric field for the multistable liquid crystals, and the multistable liquid crystals have different optical properties under different electric fields and after an electric field disappears, the multistable liquid crystals can maintain the same optical properties as the electric field exists. The present disclosure also provides a display device, including: the above mentioned display panel.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: April 26, 2022
    Assignees: BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hunghuei Hsu, Xiuhe Zhou
  • Patent number: 11243422
    Abstract: Embodiments of the present disclosure provide a stereoscopic display device, a fabrication method and a stereoscopic display method. The stereoscopic display device includes a control device, a display screen and a substrate, wherein the control device is provided between the display screen and the substrate, and the control device is configured to adjust a distance between the display screen and the substrate.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: February 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenchu Dong
  • Patent number: 11237416
    Abstract: A peep-proof device, a display device and a method for driving the display device are provided. The peep-proof device includes at least one light beam adjustment layer. The light beam adjustment layer includes: a transparent base layer and a plurality of grooves formed in a surface of the transparent base layer; and a liquid crystal layer arranged within the plurality of grooves. A refractive index of the transparent base layer is same as a refractive index of the liquid crystal layer to ordinary light beam.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: February 1, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yinwei Chen, Xuerong Wang, Yali Liu, Haiwei Sun, Fei Gao
  • Patent number: 11187839
    Abstract: A display device including a display panel and an eyepiece is provided. An image realized by the display panel can be provided to a user by passing through the eyepiece. The display device can further include a front quarter-wave plate and a rear quarter-wave plate in order to increase the path of light traveling toward the eyepiece from the display panel. A barrier can be disposed between the front quarter-wave plate and the rear quarter-wave plate. The barrier can reflect or transmit the light traveling toward the eyepiece from the display panel on a region-by-region, so that the loss of light recognized by the user through the eyepiece can be minimized.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 30, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong Park, Sung-Min Jung, Keong-Jin Lee
  • Patent number: 11187907
    Abstract: A system included in an augmented reality (AR) headset prevents reduction in legibility of a near-eye image display for observation in combination with an observer's visual exterior view. The system includes a near-eye image source from which emanates near-eye image-carrying light and which is positioned out of the observer's direct visual exterior view. A dimming matrix display including multiple pixels is positioned so that the observer can see though them a scene in an exterior view. A partly transparent optical element is positioned so that the observer can see the scene in the exterior view and reflect the near-eye image-carrying light to provide an image for observation by the observer. A dimming controller controls amounts of scene-carrying light propagating through the multiple pixels from the locations in the scene and thereby prevents wash-out of the near-eye image when outside illumination is very bright.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: November 30, 2021
    Assignee: LC-TEC Displays AB
    Inventors: Jesper Osterman, Fredrik Kihlborg, Terry J. Scheffer
  • Patent number: 11169391
    Abstract: A multiview backlight and mode-switchable backlight employ a planar backlight to emit scattered light and light-blocking layer having a plurality of apertures to provide a plurality of directional light beams from the scattered light. The mode-switchable backlight further includes another planar backlight configured to provide diffuse light in a two-dimensional (2D) operational mode, the plurality of directional light beams being provided in a three-dimensional (3D) mode. A 2D/3D mode-switchable display includes the mode-switchable backlight and a light valve array. A method of backlight operation includes directing scattered light from a planar backlight toward a light-blocking layer having a plurality of apertures and providing a plurality of directional light beams using an aperture of the aperture plurality.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 9, 2021
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Ming Ma
  • Patent number: 11164501
    Abstract: Provided are a display panel and a display device. The display panel is configured such that a first luminous intensity of a first sub-pixel is greater than a second luminous intensity of a second sub-pixel at a same driving current. A light blocking structure includes a grid-shaped grid line, the shortest distance between a first orthographic projection of a first sub-pixel onto a substrate and a third orthographic projection of the grid line onto the substrate is D1H along the row direction of an array, the shortest distance between a second orthographic projection of a second sub-pixel onto the substrate and the third orthographic projection of the grid line onto the substrate is D2H along the row direction of the array, where D1H<D2H.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: November 2, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Huiping Chai, Lijing Han
  • Patent number: 11163157
    Abstract: A vehicle may have a light-field head-up display that produces a light-field output allowing a viewer in the vehicle to observe three-dimensional content. An array of light-field display units and corresponding lenses may be used to direct the light-field output towards the viewer. The head-up display may have a transmissive display such as a liquid crystal display or other display with an array of backlit pixels. The pixels may have subpixels of different colors and may have elongated shapes extending along a given dimension. Lenticular lenses in the transmissive display that overlap the pixels may extend along the given dimension. A directional backlight may be used to adjust the direction of the light-field output produced by a light-field display unit. The directional backlight may be adjusted to alternately provide light-field output to the left and right eyes of a viewer.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: November 2, 2021
    Assignee: Apple Inc.
    Inventors: Graham B. Myhre, Hyungryul J. Choi
  • Patent number: 11151963
    Abstract: Provided are a residual image detection method and apparatus of a display panel, and a display device. The method includes: controlling a display panel to display a chessboard picture for a preset duration, controlling the display panel to display a pure color picture having a third grayscale, the pure color picture includes multiple pure color sub-pictures, and each of pure color sub-picture includes a middle area and multiple edge areas surrounding the middle area; detecting a luminance of each of the multiple edge areas in the pure color picture; and calculating the residual image quantization value of each of the multiple edge areas according to the luminance of each of the multiple edge areas and a formula, and determining a residual image quantization value of the display panel according to residual image quantization values of the multiple edge areas.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 19, 2021
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jiafeng Dai, Ronghua Li
  • Patent number: 11137720
    Abstract: A holographic display device includes a backlight unit for emitting light and a spatial light modulator. The spatial light modulator includes a plurality of pixels and a color filter layer including a plurality of color filter groups. The pixels are arranged in a zigzag form and are configured to modulate at least one of the amplitude and phase of the light. Each of the color filter groups includes a first sub-group including a plurality of first color filters, a second sub-group including a plurality of second color filters, and a third sub-group including a plurality of third color filters, and each of the pixels is aligned with one of the first color filters, the second color filters, and the third color filters of the color filter layer.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 5, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye Sog Lee, Hyun Sup Lee
  • Patent number: 11119354
    Abstract: The present disclosure provides a display panel, a method for manufacturing the same and a display device. The display panel includes a substrate and a plurality of pixels provided on the substrate, each of the pixels includes a display region and a transparent region, a light emitting device is provided in the display region, the display panel further includes a polarization layer provided in the display region and the transparent region, and at a light exiting side of the light emitting device departing from the substrate, a portion of the polarization layer located in the display region is configured to absorb external environment light, and another portion of the polarization layer located in the transparent region is configured to transmit the external environment light.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: September 14, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Cuicui Liang, Bin Wang
  • Patent number: 11106074
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a base substrate and light-shielding strips. The base substrate includes light-shielding regions and light-transmitting regions. The display panel further includes a backlight module including a light guide plate and light extraction gratings. The display panel further includes a first electrode layer, a second electrode layer, and a liquid crystal layer. The first and second electrode layers are configured to, in response to a control signal, control the liquid crystal layer to forms a plurality of liquid crystal grating periods. The liquid crystal within each of the plurality of liquid crystal grating periods includes a plurality of segments with different refractive indices, and the refractive indices of the plurality of segments progressively increase in a direction perpendicular to an extending direction of the first electrodes in the first electrode layer.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 31, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Wei Wang, Wenqing Zhao, Xiandong Meng, Xianqin Meng, Fangzhou Wang, Jian Gao, Pengxia Liang, Xiaochuan Chen
  • Patent number: 11099433
    Abstract: A switchable directional display apparatus comprises a spatial light modulator and a backlight comprising a waveguide, two light sources arranged to provide illumination through the edge of the waveguide and a switchable liquid crystal retarder. The light sources and switchable liquid crystal retarder may be controlled to provide a first operating state with a narrow field of view and a second operating state with a wide field of view. Image visibility in wide angle mode of operation may be maximised while visual security level may be maximised in a narrow angle mode of operation, to provide an efficient privacy mode of operation.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 24, 2021
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Robert A. Ramsey, Jonathan Harrold
  • Patent number: 11086396
    Abstract: Methods and systems are provided for enabling a head mounted display (HMD) user to view web content in 3-dimensional views. A computer-implemented method includes accessing a webpage having content items and detecting that the HMD user's field of view is being directed at one or more of the content items. The method further identifies pre-assigned depth values for one or more displayable objects of the content items, wherein the pre-assigned depth values specify an apparent depth that the one or more objects are to be displayed via the HMD. Moreover, the method applies the pre-assigned depth values to the displayable objects for rendering a 3-dimensional view with the displayable objects appearing to the HMD user at a depth corresponding to the pre-assigned depth values.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: August 10, 2021
    Assignee: Sony Interactive Entertainment LLC
    Inventor: Jason Sungkew Kim
  • Patent number: 11086143
    Abstract: A pair of eyeglasses may include one or more adjustable lenses that are each configured to align with a respective one of a user's eyes. The adjustable lenses may each include electrically modulated optical material such as one or more liquid crystal cells. The liquid crystal cells may include arrays of electrodes that extend along one, two, three, four, or more than four directions. Control circuitry may apply control signals to the array of electrodes in each liquid crystal cell to produce a desired phase profile. Each lens may be foveated such that portions of the lens within the user's gaze exhibit a different phase profile than portions of the lens outside of the user's gaze. The control circuitry may adjust the location of the optically distinct area so that it remains aligned with the user's gaze.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 10, 2021
    Assignee: Apple Inc.
    Inventors: Patrick R. Gill, Miikka M. Kangas, Jeffrey G. Koller, Alexander A. Miles, Yu Horie
  • Patent number: 11067819
    Abstract: A optical device includes: a display device configured to output a display image; a lens on one side of the display device; and a polarization control unit between the display device and the lens and configured to output the display image output from the display device as first polarized light or second polarized light, wherein the lens comprises: a first polarizing mirror configured to reflect a display image of the first polarized light and to transmit a display image of the second polarized light; and a second polarizing mirror configured to reflect a display image of the second polarized light and to transmit a display image of the first polarized light.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 20, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Jin Cho, Jae Joong Kwon, Ju Hwa Ha, Jeong Woo Park, Su Bin Jung
  • Patent number: 11061247
    Abstract: A liquid crystal (LC) device includes an optical stack arrangement including from the viewing side: a first electrode component; a first LC alignment layer; an LC layer; a second LC alignment layer; and a second electrode component. A voltage is applied to the LC device to create a potential difference between the first and second electrode components to switch an alignment of liquid crystals of selected portions of the LC layer from a first state when no voltage is applied to a second state when the voltage is applied. The first and second LC alignment layers are vertical alignment layers that induce a vertical alignment of the liquid crystals such that the first state when no voltage is applied is a vertical alignment state, and the liquid LC crystals switch to a planar alignment state as the second state when the voltage is applied.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 13, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Andrew Acreman, Nathan James Smith, Takehiro Murao, Ryoh Kikuchi
  • Patent number: 11040630
    Abstract: A system is provided for inductively charging the battery of an electric vehicle as it travels along a roadway. The system comprises a series of asphalt paving seam gaskets within which are embedded magnetic field generators. The magnetic field generator gaskets are arranged with opposite polarities exposed on either side of each of the charging lanes, so that induction wires within the vehicle transect the magnetic field lines and generate an electric current to charge the vehicle battery. Energy generated and/or distance travelled in the charging lanes can be metered and reported in order to impose user fees.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: June 22, 2021
    Inventor: Richard Diamond
  • Patent number: 11022738
    Abstract: A head-up display system includes a display control component, a polarization conversion member, a birefringent lens component, a scattering component, and a reflecting component; the display control component is configured to alternately output a first to-be-displayed image and a second to-be-displayed image to the polarization conversion member; the polarization conversion member is configured to convert light having different polarization states; the birefringent lens component is configured to image light of a P-polarization state and a S-polarization state; the scattering component is configured to scatter formed images onto the reflecting component, respectively; and the reflecting component is configured to reflect the images to an eye of a user.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: June 1, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tao Hong
  • Patent number: 11017704
    Abstract: A display device includes a display panel which displays an image according to an image display mode including a first display mode and a second display mode and includes a surface on which the image is displayed, a rollable lens including a first lens array and a second lens array spaced apart from the first lens array, and a roller disposed inside the rollable lens. Here, the roller rotates the rollable lens so that the first lens array is disposed on a surface of the display panel in the first display mode, and the roller rotates the rollable lens so that the second lens array is disposed on the surface of the display panel in the second display mode.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youngsang Ha, Rangkyun Mok, Jiwon Lee
  • Patent number: 11009743
    Abstract: A display panel has a display area and a peripheral area. The peripheral area is located outside the display area. The display panel includes a first substrate, a second substrate, and a display medium layer. The second substrate is located above the first substrate and includes a first polarization layer, a first quarter wave plate (QWP), a reflection layer, and a pixel array. The first polarization layer is located within the display area and the peripheral area and includes a wire-grid polarizer. The first QWP is located within the peripheral area. The reflection layer is located within the peripheral area, in which the first QWP is located between the first polarization layer and the reflection layer. The pixel array is at least located within the display area. The display medium layer is located between the first substrate and the second substrate.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: May 18, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Han-Sheng Nian, Li-Kai Chia, Yu-Cheng Shih, Wei-Syun Wang, Shan-Ying Chou, Sheng-Ming Huang, Jen-Kuei Lu
  • Patent number: 11003040
    Abstract: A grating structure includes slit regions (4) and light blocking regions (5) that are alternately distributed in a first direction. The slit regions (4) and the light blocking regions (5) extend in a second direction, and the first direction is perpendicular to the second direction. The grating structure further includes two electrode plates (10, 20) disposed oppositely, and a plurality of support columns (3) disposed between the two electrode plates (10, 20) and supporting them. At least two of the support columns (3) are spaced apart in the first direction are arranged in each of the slit regions (4).
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 11, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenyu Chen, Zhongxiao Li, Xiaoehen Niu, Jinye Zhu, Wenqing Zhao, Xiaochuan Chen
  • Patent number: 11004913
    Abstract: A display apparatus includes a first polarizer, a second polarizer facing the first polarizer, an organic light emitting element overlapping the first polarizer and the second polarizer, a first electrode and a second electrode between the first polarizer and the second polarizer and facing each other, and a liquid crystal layer between the first electrode and the second electrode.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: May 11, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Young Lee, Sangho Park, Seungmin Lee, Gugrae Jo
  • Patent number: 10962795
    Abstract: A display device includes a first display, a second display and one or more optical elements. The first display is configured to provide a first light that corresponds to a first image, the second display is configured to provide a second light that corresponds to a second image, and the one or more optical elements are configured to project a display image using the first light and the second light. The display image includes the first image and the second image. The display device is configured to project the first image with a first magnification and project the second image with a second magnification that is distinct from the first magnification. Also disclosed is a method performed by the display device.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 30, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Jacques Gollier, Ying Geng, Yusufu Njoni Bamaxam Sulai, Fenglin Peng, Brian Wheelwright
  • Patent number: 10955684
    Abstract: A grating driving circuit, including: a grating including a plurality of grating elements, each having an on/off state controlled by a grating driving signal; a viewpoint tracker for determining a viewing distance of a viewer; a plurality of grating control electrodes with each configured to control the on/off state of a corresponding grating element in the grating according to a grating driving signal; a grating driving signal generator for generating a plurality of sets of grating driving signals with each set corresponding to a viewing distance and including a plurality of grating driving signals; and a grating driving controller for determining a set of grating driving signals corresponding to the viewing distance, and forming grating periods corresponding to the viewing distance, each grating period including a plurality of grating control electrodes that correspond to the plurality of grating driving signals in a one-to-one relationship.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 23, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Xiaochuan Chen, Wenqing Zhao, Chenyu Chen, Jinye Zhu
  • Patent number: 10942365
    Abstract: An object of the present invention is to reduce luminance unevenness caused by interference between a pixel and a PS in a barrier panel without making a design of the PS complicated in a parallax barrier system stereoscopic display device. A plurality of pixels are arranged at a regular pitch in an x direction and a y direction. A light barrier element includes a pair of glass substrates, a liquid crystal layer provided between the glass substrates, and a plurality of PSs provided between the glass substrates. The plurality of PSs are arranged at a regular pitch in the x direction and the y direction. Arrangement pitches of the plurality of PSs in the x direction and the y direction are not integral multiples of arrangement pitches of the plurality of pixels in the x direction and the y direction, respectively.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 9, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Okumoto, Akimasa Yuuki
  • Patent number: 10933746
    Abstract: A vehicle display device, a vehicle display control apparatus for controlling the same, and a vehicle display system including the vehicle display device and the vehicle display control apparatus are provided. The vehicle display system includes a single vehicle display device and a vehicle display control apparatus that controls application of voltage for driving the single vehicle display device and controls the single vehicle display device to switch to and operate in one of a first mode for displaying a single view, a second mode for displaying a multi-view, a third mode for displaying a three-dimensional view, and a fourth mode for displaying a two-dimensional view.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 2, 2021
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventor: Sung Woo Lee
  • Patent number: 10921621
    Abstract: An optical structure, a display device and an operating method thereof are provided. The optical structure includes: first electrode and second electrode arranged opposite to each other; first alignment layer; second alignment layer; liquid crystal molecules arranged between first alignment layer and second alignment layer; and insulative protrusions arranged at a side of first alignment layer facing second alignment layer. The insulative protrusions are spaced apart from and arranged parallel to each other, and the protrusion has a same refractive index as the liquid crystal molecules in energized or de-energized state. Through controlling electric signals applied to first electrode and second electrode, it is able to switch the optical structure between first state where the optical structure does not change propagation direction of light entering the optical structure and second state where the optical structure is capable of changing propagation direction of light entering the optical structure.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongxiao Li, Xiaochuan Chen, Wenqing Zhao, Qian Wang, Ming Yang
  • Patent number: 10891822
    Abstract: A gaming device includes a gesture detection device that includes a gesture detector that is operable to detect a gesture of a player and a gesture interpreter that is configured to generate gesture data corresponding to the gesture, a housing that includes an interior that is defined by a plurality of opaque surfaces and a front surface that includes a portion that is a semi-transparent window that is configured to reflect, to the player, a reflected image of at least a portion of the player that is an object distance away from the semi-transparent window. The gaming device includes a display device that is arranged within the housing and that includes a display surface that faces the semi-transparent window, that is spaced apart from the semi-transparent window by about the object distance and that is configured to display a supplemental image that is visible through the semi-transparent window.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: January 12, 2021
    Assignee: IGT
    Inventors: Stefan Keilwert, Klaus Achmueller
  • Patent number: 10877310
    Abstract: A transparent display apparatus is provided. The transparent display apparatus may include a display panel realizing an image. The image realized by the display panel may display on an image formed by light passing through the display panel. In the transparent display apparatus, the moving path of light emitted from the display panel may longer than the moving path of light passing through the display panel, so that the quality and the viewing angle of the image realized by the display panel may be improved.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: December 29, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong Park, Sung-Min Jung, Sung-Woo Kim, Keong-Jin Lee, Myung-Soo Park
  • Patent number: 10871653
    Abstract: A system included in a wearable viewing device (10) prevents reduction in legibility of a near-eye image display for observation in combination with an observer's visual exterior view. The system includes a near-eye image source (14) from which emanates near-eye image-carrying light and which is positioned out of the observer's direct visual exterior view. A dimming matrix display (12) including multiple pixels is positioned so that the observer (22) can see though them a scene (30, 32) in an exterior view. A partly transparent optical element (20) is positioned so that the observer can see the scene in the exterior view and reflect the near-eye image-carrying light to provide an image for observation by the observer. A dimming controller (34) controls amounts of scene-carrying light propagating through the multiple pixels from the locations in the scene and thereby prevents wash-out of the near-eye image when outside illumination is very bright.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 22, 2020
    Assignee: LC-TEC Displays AB
    Inventors: Jesper Osterman, Fredrik Kihlborg, Terry J. Scheffer
  • Patent number: 10859879
    Abstract: The present disclosure provides a liquid crystal grating, a method for driving the liquid crystal grating, and a display device. In the embodiments of the present disclosure, by applying the second voltage and the third voltage that are mutually inverted with respect to the common electrode voltage, the situation in which a single phase voltage is applied to all grating electrodes corresponding to the power-on optical state can be avoided. Due to the capacitance of liquid crystal, the influence of the second voltage on the common electrode voltage and the influence of the third voltage on the common electrode voltage cancel each other out. Therefore, the fluctuation of the common electrode voltage caused by the capacitance of liquid crystal can be effectively reduced or eliminated, thereby avoiding the failure of the liquid crystal grating.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 8, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Xiaochuan Chen, Shengji Yang, Wenqing Zhao, Pengcheng Lu
  • Patent number: 10838223
    Abstract: A stereoscopic display device having a barrier panel is provided. The barrier panel may include lower channels between a lower barrier substrate and a channel insulating layer. The lower channels may be disposed between upper channels which is disposed on the channel insulating layer. Each of the lower channels may include a first sub-channel, a second sub-channel and a lower insulating layer. The lower insulating layer of each lower channel may cover an end region of the first sub-channel of adjacent lower channel. The second sub-channel of each lower channel may be connected to another end region of the first sub-channel. The second sub-channel may be extended along a side wall of the lower insulating layer. Thus, in the stereoscopic display device of the present disclosure, a distance between the lower channels may be minimized.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: You-Yong Jin, Wook Jeon, Hee-Jin Im, Yong-Ku Lee, Ju-Hoon Jang, Dong-Yeon Kim, Woon-Chan Moon
  • Patent number: 10828560
    Abstract: An optical conveyance system is disclosed for relocating a visual input position of an electronic device. The electronic device has a frontside camera and a backside camera respectively positioned on opposite sides of the electronic device. An optical receiver is configured to receive visual input. An optical output is positioned over the frontside camera of the electronic device and is configured to project visual output into the frontside camera of the electronic device. An optical conveyance device is optically connected between the optical receiver and the optical output. The optical conveyance device is configured to convey the visual input received through the optical receiver to the optical output for projection as the visual output into the frontside camera of the electronic device.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 10, 2020
    Assignee: Sony Interactive Entertainment Inc.
    Inventor: Jeffrey Stafford
  • Patent number: 10831155
    Abstract: Variable digital optical images may be fabricated using generic optical matrices. A generic optical matrix may have pixels corresponding to color and subpixels corresponding to noncolor effects. The pixels may include first pixels corresponding to a first color and second pixels corresponding to a second color. The subpixels may include first subpixels corresponding to a first noncolor effect and second subpixels corresponding to a second noncolor effect. Individual ones of the pixels and/or subpixels of the generic optical matrix may be obliterated according to a negative while remaining pixels and/or subpixels may be preserved. The remaining pixels and/or subpixels may form an optical image corresponding to a base image. The optical image may be colored based on the remaining pixels. The optical image may exhibit noncolor effects corresponding to the remaining subpixels. The optical image may comprise a hologram or a stereo image.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 10, 2020
    Assignee: NANOGRAFIX CORPORATION
    Inventors: Daniel Lieberman, Or Lieberman, Rami Lieberman
  • Patent number: 10824030
    Abstract: The present disclosure relates to a grayscale control structure, including a first substrate, a light extraction layer, an electrode layer, a liquid crystal layer, a filter layer and a second substrate which are sequentially stacked. The electrode layer is provided with a plurality of strip-shaped electrodes arranged in parallel to form lens units in the liquid crystal layer. The filter layer includes light exit strips and a black matrix arranged in parallel, and the light exit strips are disposed opposite to the lens units. Light extraction gratings are disposed in the light extraction layer, the light extraction gratings are disposed opposite to the light exit strips, and a projection of individual one of the light exit strips on the light extraction layer covers a corresponding one of the light extraction gratings.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 3, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haiyan Wang, Wenqing Zhao, Weili Zhao
  • Patent number: 10823977
    Abstract: Disclosed are a system and a method for driving a naked-eye 3D liquid crystal prism. The system includes a driving voltage determination module used to determine a corresponding driving voltage for each driving electrode in a display panel according to human eye space-position information; and a liquid crystal prism driving module used to generate a driving signal for driving a corresponding driving electrode according to the driving voltage, so as to adjust a shape of the liquid crystal prism.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 3, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Limin Wang, Tai Jiun Hwang
  • Patent number: 10775662
    Abstract: A direct-lit LED backlight for a liquid crystal display (LCD) based avionics display unit may include a two-dimensional high density array of mid-power LED units mounted to a circuit card. A diffuser layer for scattering and spreading the luminous output of the LED array throughout the full LCD stack may be airlessly adhered (e.g., without the need for an air gap) to the LED array, and to the LCD stack, by bond layers of thermally conductive transparent optical adhesive. The circuit card may include embedded resistive heaters for conductively heating the LCD stack to optimize performance, or the LCD stack may be heated by the LED array itself. The backlight may include night vision filtering layers similarly and airlessly adhered between the LED array and the LCD stack by the optical bond layers.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 15, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Rick J. Johnson
  • Patent number: 10768440
    Abstract: A barrier panel for a display device includes a first substrate and a second substrate facing each other with a liquid crystal layer therebetween, a plurality of first barrier electrodes that extend along a second direction on the first substrate and are operated individually, a second barrier electrode that is on the second substrate and includes a plurality of electrode patterns which are separated from each other with respect to a first direction perpendicular to the second direction, and a plurality of column spacers between the first and second substrates.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Da-Hee Lee
  • Patent number: 10771770
    Abstract: A 3D display device and the driving method for the 3D display device are provided. The 3D display device includes a liquid crystal display panel for monochrome display, and an electroluminescence display panel for color display disposed under the liquid crystal display panel; the electroluminescence display panel includes a plurality of regions arranged in a matrix, the plurality of regions form columns of bright regions and columns of dark regions, which are arranged alternately the liquid crystal display panel includes a plurality of first sub-pixels arranged in a matrix; each bright region of the electroluminescence display panel corresponds to at least two first sub-pixels adjacent in row direction of the liquid crystal display panel.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 8, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Pengcheng Lu, Xiaochuan Chen, Wenqing Zhao, Ming Yang, Lei Wang, Rui Xu, Jian Gao, Xiaochen Niu, Haisheng Wang, Shengji Yang, Changfeng Li
  • Patent number: 10762818
    Abstract: A display device includes a display panel, a micro lens array, a driving system, a controller, and a signal processor. The controller is configured to set at least one preset path within one frame. The driving system is configured to drive, according to the preset path, the display panel and/or the micro lens array to move along respective preset path(s), and to control the display panel and/or the micro lens array that move along the preset path to stop moving at the stopping positions. The signal processor is configured to, in response to stopping of the display panel and/or the micro lens array at the corresponding stopping positions, provide display sub-images to the display panel according to the at least one preset path and one frame of display image.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: September 1, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jiayao Liu
  • Patent number: 10754188
    Abstract: A liquid crystal lens and a display device, for improving the efficiency of natural light modulation and lowering the device profile. The liquid crystal lens includes an upper substrate and a lower substrate configured opposite each other, liquid crystal molecules located between the upper substrate and the lower substrate, a plurality of upper electrodes located on the upper substrate, and a plurality of lower electrodes located on the lower substrate. Each lower electrode includes a plurality of metal wire grid polarizers. The upper electrodes respectively correspond to the lower electrodes. An orthographic projection of each upper electrode and that of the corresponding lower electrode on the lower substrate form a ring-shaped electrode structure, and each upper electrode and the corresponding lower electrode are configured to receive voltages of different potential.
    Type: Grant
    Filed: February 11, 2018
    Date of Patent: August 25, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Qian Wang, Xiaochuan Chen, Wenqing Zhao
  • Patent number: 10747002
    Abstract: Optical systems including an image surface and an exit surface are described. First second and third optical lenses, a partial reflector, a multilayer reflective polarizer and a retarder are disposed between the image surface and the exit surface. At least one location on at least one layer of the multilayer reflective polarizer is substantially uniaxially oriented. Each chief light ray that passes from the image surface to the exit surface is incident on the multilayer reflective polarizer with an angle of incidence less than about 30 degrees. The optical system may include a plurality of major surfaces disposed between the image surface and the exit surface where each major surface is convex toward the image surface and where at least six different major surfaces have six different convexities.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: August 18, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Zhisheng Yun, Andrew J. Ouderkirk, Timothy L. Wong, Erin A. McDowell, Gregg A. Ambur
  • Patent number: 10747016
    Abstract: A 3D display device comprises first and second substrates disposed opposite one another; a liquid crystal layer; a color filter layer between the first substrate and the liquid crystal layer, a plurality of pixel regions arranged in an array being formed on the color filter layer, and each of the plurality of pixel regions comprising first and second sub-pixels; and a first polarizer on a side of the first substrate, the first polarizer comprising a plurality of wire grid polarizers arranged in an array, two adjacent ones of the plurality of wire grid polarizers comprising a plurality of columns of first sub-wire grid polarizers and second sub-wire grid polarizers which are alternately arranged with each other. An orthographic projection of each column of the first and second sub-wire grid polarizers on the pixel regions is overlapped with at least one column of first sub-pixels and second sub-pixels, respectively.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: August 18, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunmiao Zhou, Dacheng Zhang
  • Patent number: 10732463
    Abstract: A method for fabrication of a nano-scale mold to create a high precision alignment layer for liquid crystals is described. The method comprises forming a nano-scale mold with a negative of a liquid crystal alignment pattern and imprinting a resist material on the mold. The method further comprises performing a set operation on the resist material to cause the resist material to set, the resist material forming a liquid crystal alignment layer. The nano-scale mold is separated from the liquid crystal alignment layer. The method further comprises performing an infiltration operation to cause the liquid crystals to be deposited on the alignment layer, the alignment layer causing the liquid crystals to form the liquid crystal alignment pattern.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 4, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Giuseppe Calafiore, Wai Sze Tiffany Lam, Lu Lu, Babak Amirsolaimani
  • Patent number: 10721463
    Abstract: An infrared polarizing filter is attached to an infrared synchronization signal radiator of a stereoscopic image display device which alternately displays right and left images by time-division with polarized light in one direction to radiate the polarized-light infrared synchronization signal. The problem with the occurrence of crosstalk is solved. Stereoscopic image appreciation eyeglasses have polarizing plates, visual field opening/closing liquid crystal cells and tilt correcting liquid crystal cells. The synchronization signal is received by a receiver mounted on an eyeglass frame. The tilt correcting liquid crystal cells are adjusted based on the eyeglass frame tilt angle detected.
    Type: Grant
    Filed: October 14, 2018
    Date of Patent: July 21, 2020
    Inventor: Minoru Inaba
  • Patent number: 10705401
    Abstract: A Pancharatnam Berry Phase (PBP) liquid crystal structure for adjusting or focusing light of a plurality of color channels emitted by a display of a head-mounted display (HMD) comprises a plurality of PBP active elements. Each PBP active element of the structure is configured to act as a half waveplate for light of a corresponding color channel, such that light of the corresponding color channel is adjusted by a predetermined amount. In addition, each PBP active element acts as a one waveplate for light of the remaining color channels, such that light of the remaining color channels passes through the PBP active element substantially unaffected. As such, the PBP structure is able to adjust incident light of the plurality of color channels uniformly in an apochromatic fashion.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Lu Lu, Wai Sze Tiffany Lam, Scott Charles McEldowney, Pasi Saarikko
  • Patent number: 10701348
    Abstract: Proposed is a stereoscopic image screening device.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: June 30, 2020
    Assignee: REALD INC.
    Inventors: Young Hoon Lee, Chul Woo Lee, Bong Jae So