Interconnection Of Plural Cells In Series Patents (Class 349/74)
  • Patent number: 11953683
    Abstract: The invention relates to a display device, in particular a head-mounted display or hocular, having a spatial light modulator and a controllable light-deflecting device for generating a multiple image of the spatial light modulator, which consists of segments, the multiple image being produced at least with a predefinable number of segments which determines the size of a visible area within which a 3D-scene holographically encoded in the spatial light modulator can be reconstructed for observation by an eye of an observer.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: April 9, 2024
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Gerald Futterer
  • Patent number: 11874551
    Abstract: A display panel and a manufacture method thereof, and a display apparatus are provided. A display liquid crystal panel and a light control panel that are stacked. The display liquid crystal panel includes a first substrate and a second substrate that are opposite to each other; the light control panel includes a third substrate and a fourth substrate that are opposite to each other. The second substrate and the third substrate are between the first substrate and the fourth substrate. The first polarizer is between the second polarizer and the third polarizer. The first polarizer, the second polarizer, and the third polarizer are configured to allow backlight to emit out of the fourth substrate after passing through the second polarizer, the first polarizer, and the third polarizer in sequence.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: January 16, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangcai Yuan, Haixu Li
  • Patent number: 11789331
    Abstract: A voltage-controlled optical wedge is formed by creating an adjustable voltage gradient along the length of a relatively large-sized LC cell. A pair of bias voltages (AC voltages) are applied at the opposing side terminations of the LC cell, their RMS values selected to create a continuous phase variation along the length of the cell, where a defined phase variation is associated with a specific beam steering angle. Adjustments in the applied bias voltages (specifically, changes in the RMS values of the bias voltages) result in changing the beam steering angle, providing for active, controllable beam steering as a function of time. The LC cell may be configured to provide either a linear or nonlinear continuous phase variation, as preferred for different beam steering applications.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: October 17, 2023
    Inventors: Qingyu Li, Jack R. Kelly, Guomin Jiang, Haiji J. Yuan, Yimin Ji, Helen Chen
  • Patent number: 11719984
    Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell and a polarized light conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of an pair of substrates of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, a plurality of first electrodes arranged along one direction on the insulating substrate and formed in a strip shape, a first inorganic insulating film covering the first electrodes and a plurality of second electrodes intersecting the first electrodes on the first inorganic insulating film and formed in a strip shape.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: August 8, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takeo Koito, Tae Kurokawa, Masashi Mitsui
  • Patent number: 11605358
    Abstract: A control unit receives an input image signal including input display gray scale data corresponding to the virtual opposing regions, selects a set of pieces of subpixel gray scale data corresponding to the virtual opposing regions from the input display gray scale data, extracts a maximum amount of subpixel gray scale data among the set of pieces of subpixel gray scale data as extracted gray scale data corresponding to one first pixel facing the virtual opposing regions among the plurality of first pixels, and controls a transmittance of light of the one first pixel using designated pixel gray scale data in a case where the extracted gray scale data has a level equal to or higher than an output determination reference gray scale level, the designated pixel gray scale data being gray scale data having a maximum transmittance of a first liquid crystal panel.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: March 14, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hidekazu Miyata
  • Patent number: 11573470
    Abstract: The present disclosure relates to a display panel and a display device. The display panel comprises: a display liquid crystal panel comprising a plurality of sub-pixels defined by a first grid structure and arranged in an array; a dimming liquid crystal panel located on a light incident side of the display liquid crystal panel and stacked with the display liquid crystal panel, the dimming liquid crystal panel comprising a plurality of dimming pixels defined by a second grid structure and arranged in an array; wherein the second grid structure comprises a plurality of shading lines which extend in a waveform along a row direction and have the same period, and a waveform phase difference ?? of any two adjacent shading lines meets: 0<|??|<?.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: February 7, 2023
    Assignees: Hefei BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yue Du, Yuanhui Guo, Lei Guo, Ke Dai
  • Patent number: 11561432
    Abstract: A display device including a backlight plate, a first panel, and a second panel is provided. The first panel is disposed on the backlight plate and includes a first liquid crystal layer and an upper substrate disposed on the first liquid crystal layer. The second panel is disposed on the first panel and includes a bottom substrate and a second liquid crystal layer disposed on the bottom substrate. The first panel includes a plurality of first pixels. The second panel includes a plurality of second pixels. A ratio relationship between the first panel and the second panel is 0.220 ? 9 × ( Y X ) 2 ? R 2 R 1 ? 0 . 7 ? 9 ? 2 ? 1 × ( Y X ) 2 wherein Y is a distance between the bottom surface of the upper substrate and the top surface of the bottom substrate, X is a pixel pitch between the second pixels, R1 is the number of first pixels, and R2 is the number of second pixels.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: January 24, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Ming-Chia Shih, Cheng-Jen Chu, Chung-Kuang Wei
  • Patent number: 11537002
    Abstract: A reflective display apparatus is provided. The reflective display apparatus includes a textured sub-micron metal film textured in a periodic manner, a phase change material (PCM) layer, and a phase change control layer that is configured to change reflection properties of the textured sub-micron metal film by causing the PCM to switch between at least two of a plurality of phases.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: December 27, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Andrew Acreman, Nathan James Smith
  • Patent number: 11448917
    Abstract: The liquid crystal display apparatus includes: a liquid crystal panel; a light control layer; and a surface light source device, wherein the liquid crystal panel includes: a liquid crystal cell; a viewer-side polarizing plate; and a back surface-side polarizing plate, wherein the light control layer includes a first transparent substrate; a first transparent electrode layer; a composite layer of a polymer matrix and a liquid crystal compound; a second transparent electrode layer; and a second transparent substrate, wherein the first transparent substrate and the second transparent substrate each independently have a thickness of 70 ?m or less, wherein the first transparent substrate and the second transparent substrate each independently have a front retardation at a wavelength of 590 nm of 100 nm or less, wherein the surface light source device is configured to emit light which has directivity in an approximately normal direction of the light emitting surface.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 20, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Jin Yoshikawa, Hiroyuki Takemoto, Mariko Hirai, Masanori Otsuka
  • Patent number: 11402675
    Abstract: A viewing angle switch module includes a viewing angle limiter, a first electronically controlled viewing angle switch, a second electronically controlled viewing angle switch, a first polarizer, and a second polarizer. The viewing angle limiter has an absorption axis, and an axial direction of the absorption axis is parallel to a thickness direction of the viewing angle limiter. The viewing angle limiter, the first electronically controlled viewing angle switch, the first polarizer, the second electronically controlled viewing angle switch, and the second polarizer are overlapped. An axial direction of a first absorption axis of the first polarizer is parallel to an axial direction of a second absorption axis of the second polarizer. A display apparatus adopting the viewing angle switch module is also provided. The viewing angle switch module and the display apparatus provided by the invention have better light energy utilization rate.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: August 2, 2022
    Assignee: Coretronic Corporation
    Inventors: Yu-Fan Chen, Ping-Yen Chen, Chung-Yang Fang
  • Patent number: 11332587
    Abstract: A window for a display device and a display device including the window, the window including a base member; and a coating layer, the coating layer being formed on at least one surface of the base member and including core particles; and at least one polymer ligand, the polymer ligand being grafted onto surfaces of the core particles and bonds the core particles to the base member.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunjoon Oh, Sangil Park, Hyejin Oh, Jeongsub Lee, Minhoon Choi, Insun Hwang
  • Patent number: 11302261
    Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 12, 2022
    Inventors: Jinpil Kim, Namjae Lim, Hoisik Moon, Jae Sung Bae
  • Patent number: 11280946
    Abstract: A polarizing sheet includes a base layer, and a polarizing layer attached to the base layer. The polarizing layer includes, in a same plane, a combination of any two or more of a first region, a second region, or a third region. The first region, the second region and the third region have different light transmission properties.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: March 22, 2022
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Wei Chen, Zhiwen Xu, Jiwei Chen
  • Patent number: 11231537
    Abstract: A display apparatus and a method for controlling the same are provided. The display apparatus includes: a light guide module comprising a light incident region and a light emergent region; a display module, arranged corresponding to the light incident region of the light guide module and configured to display images; and a liquid crystal lens with a plurality of adjustable focal lengths, arranged between the display module and the light guide module and corresponding to the light incident region of the light guide module, and configured to form virtual images with different depths of field for the images displayed on the display module. The light guide module is configured to guide light exited from the liquid crystal lens to propagate in a direction from the light incident region to the light emergent region within the light guide module.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 25, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jian Gao, Xiaochuan Chen, Wei Wang, Pengxia Liang, Jifeng Tan, Xiandong Meng, Xianqin Meng, Fangzhou Wang
  • Patent number: 11131884
    Abstract: A display with local dimming backlight and an active privacy mode. The display may include a backlight source, lenses, a passive diffuser, an active diffuser and a transmissive display. The backlight source may define a two-dimensional matrix of light sources configured to generate an initial light. The lenses may be mounted adjacent to the backlight source, aligned with the light sources, and configured to generate a collimated light. The passive diffuser may be mounted adjacent to the lenses and configured to spatially spread the collimated light. The active diffuser may be mounted adjacent to the passive diffuser, configured to generate an intermediate light in response to the collimated light, and configured to change a diffusive property of the intermediate light in response to a scattering signal. The transmissive display may be mounted adjacent to the active diffuser and configured to generate multiple visible images by modulating the intermediate light.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: September 28, 2021
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Pawel Murzyn, Steven Purcell, Paul Fredrick Luther Weindorf
  • Patent number: 11004360
    Abstract: A data security apparatus includes an analog component. The analog component operates internally with a high degree of entropy. This high degree of entropy resides in the interactions between its internal components in response to an external driving signal. The interactions within the analog component have a level of entropy that is high enough to make digital simulation of the analog component impractical. Because the analog component is impractical to digitally simulate it is referred to as being digitally unclonable. The data security apparatus processes data by encrypting plaintext data into ciphertext and/or decrypting data from ciphertext into plaintext. Part of the conversion between plaintext and ciphertext uses the analog component.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: May 11, 2021
    Assignee: OPe LLC
    Inventors: Joshua Norman Smith, Robert Chad McCollum, Andrey Bogdanov
  • Patent number: 10989955
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: April 27, 2021
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Pasona Knowledge Partner Inc.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Patent number: 10962849
    Abstract: A liquid crystal display device includes a plurality of display panels which are disposed so as to overlap each other, each of the display panels displaying an image. The liquid crystal display device includes a first substrate; a second substrate disposed opposite to the first substrate in a first direction; a first liquid crystal layer disposed between the first substrate and the second substrate; a third substrate disposed opposite to the first substrate in a second direction that is an opposite direction to the first direction; and a second liquid crystal layer disposed between the first substrate and the third substrate.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 30, 2021
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Pasona Knowledge Partner Inc.
    Inventors: Ikuko Mori, Tomohiro Murakoso, Kazuhiko Tsuda
  • Patent number: 10928698
    Abstract: A high-contrast liquid crystal light control device provides angle independent variable transmission of incident light for uniform gray shades. The liquid crystal light control device comprises a combination of first and second liquid crystal devices arranged in optical series and positioned between optical polarizers. The director field of the second liquid crystal device is a mirror image of the director field of the first liquid crystal device, and the first and second liquid crystal devices are placed together so that the azimuthal directions of the surface-contacting directors are in parallel alignment at the adjoining or confronting surfaces of the substrates of the first and second liquid crystal devices. The liquid crystal light control device provides, therefore, less angular variation of intermediate transmittances compared with that provided by prior art liquid crystal light control devices.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: February 23, 2021
    Assignee: LC-TEC Displays AB
    Inventors: Jesper Osterman, Terry J. Scheffer
  • Patent number: 10928664
    Abstract: A display substrate, a method for manufacturing the same and a display device are disclosed. The display substrate comprises: a base substrate; a patterned black matrix arranged on the base substrate; and touch electrodes, wherein in a region where the black matrix is located, the display substrate comprises a filter layer stack located on the black matrix, the filter layer stack comprising two or more color filter layers stacked sequentially and a plurality of openings provided therein; and the touch electrodes are arranged on the filter layer stack and cover surfaces of the plurality of openings. According to the present disclosure, a surface area of the touch electrodes is increased, which facilitates accumulation of more charges and thus improves the sensitivity and accuracy of the touch control.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: February 23, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Liang Wang
  • Patent number: 10884296
    Abstract: A display device comprises: a display panel in which a plurality of pixels are arranged in a matrix form, wherein the plurality of pixels include a plurality of first pixels and a plurality of second pixels arrayed at a pitch different from an array pitch of the plurality of first pixels, and a number of the plurality of first pixels is different from a number of the plurality of second pixels.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: January 5, 2021
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Pasona Knowledge Partner, Inc.
    Inventor: Tetsuo Fukami
  • Patent number: 10839736
    Abstract: An image display method and an image display device are provided. The image display method includes: acquiring an environmental image in a backlight direction of a display panel; determining a viewing position of a user, and determining a background image capable of being viewed by the user through the display panel from the environmental image; determining an image compensation parameter of the display panel in accordance with an image parameter of the background image; and controlling the display panel to compensate for a to-be-displayed image in accordance with the image compensation parameter.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 17, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiangxiang Zou
  • Patent number: 10802356
    Abstract: A display comprises a polarised output spatial light modulator, switchable liquid crystal retarder, absorbing polariser and touch panel electrodes. The electrodes of the switchable liquid crystal retarder shield the touch panel electrodes from the electrical noise of the spatial light modulator addressing. The touch panel control and sensing may be synchronised with the driving signal of the switchable liquid crystal retarder. The touch panel may be operated independently of the timing of the data addressing of the spatial light modulator.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 13, 2020
    Assignee: RealD Spark, LLC
    Inventors: Jonathan Harrold, Graham J. Woodgate
  • Patent number: 10782545
    Abstract: A switchable view angle control device for a privacy view display system includes an electrically switchable view angle control LCD that is operable in a first state and a second state; a front polarizer located on a viewing side of the switchable view angle control LCD; and a polarized light source located on a non-viewing side of the switchable view angle control LCD that emits polarized light. When the switchable view angle control LCD in the first state, the view angle control device operates in a narrow angle view mode in which off-axis polarized light from the polarized light source is changed by the switchable view angle control LCD so that the off-axis light is absorbed by the front polarizer, and on-axis light passes through the switchable view angle control LCD and the front polarizer.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 22, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nathan James Smith, Andrew Acreman, Hywel Hopkin, Takehiro Murao, Jiyun Yu
  • Patent number: 10754201
    Abstract: A liquid crystal photoelectric apparatus including an upper substrate, a lower substrate, a plurality of alignment layers, and a liquid crystal material is provided. The alignment layers include an upper alignment layer, a lower alignment layer, and at least one intermediate alignment layer. The upper alignment layer has a first orientation direction. The lower alignment layer has a second orientation direction. The at least one intermediate alignment layer has an intermediate orientation direction. The intermediate orientation direction is between the first orientation direction and the second orientation direction. The liquid crystal material includes a plurality of liquid crystal material portions. Each of the liquid crystal material portions is disposed between any adjacent two alignment layers. A manufacturing method of the liquid crystal photoelectric apparatus is also provided.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: August 25, 2020
    Assignees: National Tsing Hua University, Advanced Comm. Engineering Solution Co., Ltd.
    Inventors: Ci-Ling Pan, Anup Kumar Sahoo, Chun-Ling Yen, Chan-Shan Yang, Yi-Hsin Lin, Hung-Chun Lin, Yu-Jen Wang
  • Patent number: 10670921
    Abstract: A viewing angle control film includes, in order, a first polarizer in which an absorption axis is in a direction perpendicular to a film surface; a first phase difference plate which is a ?/4 plate and has a patterned optical anisotropic layer; and a second phase difference plate which is a ?/4 plate and has a patterned optical anisotropic layer, in which the patterned optical anisotropic layers have a constant phase difference and are divided into a plurality of belt-like regions in the same plane, directions of slow axes in one belt-like region match each other and directions of slow axes of belt-like regions adjacent to each other are different from each other in the patterned optical anisotropic layer, and the belt-like region of the first phase difference plate and the belt-like region of the second phase difference plate are disposed so as to intersect with each other in a plane direction.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 2, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Yujiro Yanai
  • Patent number: 10670912
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 2, 2020
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Patent number: 10642101
    Abstract: The present disclosure provides a backlight module and a double-sided liquid crystal display device. The light utilization efficiency of the backlight module is improved. The backlight module includes a light emitting component, the light emitting component includes a first light exit surface and a second light exit surface disposed opposite to each other. A first liquid crystal brightness enhancement film and a first quarter-wave plate are sequentially disposed along a light emitting direction of the first light exit surface. A second liquid crystal brightness enhancement film and a second quarter-wave plate are sequentially disposed along a light emitting direction of the second light exit surface. A rotation structure of the first liquid crystal brightness enhancement film is opposite to a rotation structure of the second liquid crystal brightness enhancement film.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: May 5, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihong Du, Wenbo Li
  • Patent number: 10598999
    Abstract: An achromatic phase modulator (100) adapted to modulate the phase of an incident beam of light (INCIDENT LIGHT) and to output the thus modulated light, the phase modulator (100) comprising a plurality of liquid crystal elements disposed in series on a light path of the incident light and a control unit (15) comprising a plurality of power sources (14) for applying drive electric signals to the liquid crystal elements, wherein the plurality of liquid crystal elements comprises at least a first and a second liquid crystal element groups (FIRST LIQUID CRYSTAL ELEMENT GROUP; SECOND LIQUID CRYSTAL ELEMENT GROUP), each group being composed of a pair of liquid crystal elements, the liquid crystal elements of the first and second group respectively being made of a first and a second liquid crystal material having a first and a second, different, refractive index wavelength dependence characteristic, the thicknesses (d1/2, d2/2) of the liquid crystal elements forming each group being equal.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 24, 2020
    Assignees: ESSILOR INTERNATIONAL, NIKON CORPORATION
    Inventors: Yi-Hsin Lin, Hung-Shan Chen, Ming-Syuan Chen
  • Patent number: 10598983
    Abstract: A liquid crystal display device includes: a first polarizing plate, a first liquid crystal cell, a second polarizing plate, a third polarizing plate, a second liquid crystal cell, and a fourth polarizing plate, which are arranged from a front side to a back side in this order. P1, P2, P3, P4 represent degrees of polarization of the first polarizing plate, the second polarizing plate, the third polarizing plate, and the fourth polarizing plate, respectively, one of a relational expression of P1>P2, P3, P4, a relational expressions of P4>P1, P2, P3, and a relational expression of P1, P4>P2, P3 is satisfied.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: March 24, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yoichi Yasui, Katsuhiro Kikuchi, Kazuhiko Tsuda
  • Patent number: 10551677
    Abstract: An aspect of a liquid crystal display device includes an element substrate, a counter substrate, and a liquid crystal layer sandwiched by the element substrate and the counter substrate. The counter substrate includes a common electrode, a first lens layer that collects light incident to the counter substrate, a second lens layer that collects the light, and a first phase difference compensation layer that is arranged between the first lens layer and the second lens layer in a thickness direction perpendicular to the common electrode and compensates a phase difference of the light generated by the liquid crystal layer.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yutaka Tsuchiya
  • Patent number: 10503028
    Abstract: A liquid crystal display device includes: a first display panel displaying a color image; and a second display panel displaying a monochrome image. Each of the first and the second display panels includes: source lines extending in a first direction; gate lines extending in a second direction; pixels; and pixel electrodes. Each of pixel electrodes among at least one of the first display panel and the second display panel, includes slits extending in the first direction. Each of pixel electrodes includes: a first edge and a second edge that are opposed to each other and extend in the first direction; a third edge connecting one ends of the first edge and the second edge; and a fourth edge connecting another ends of the first edge and the second edge. The third edge and the fourth edge are respectively inclined at predetermined angles with respect to the second direction.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 10, 2019
    Assignee: Panasonic Liquid Crystal Dispaly Co., Ltd.
    Inventor: Kikuo Ono
  • Patent number: 10488921
    Abstract: A head-mounted display includes an electronic display configured to output image light, an optics assembly configured to direct image light in a first band from the electronic display to an eye box, an eye tracking unit configured to generate eye tracking information, and a pellicle beamsplitter configured to redirect light in a second band reflected from the eye box toward the eye tracking unit and transmit the image light in the first band. The pellicle beamsplitter is positioned along the optical axis between the optics assembly and the electronic display. The pellicle beamsplitter includes a front surface and a back surface. Each of the front surface and the back surface comprising a first radius curvature in a first plane and a second radius curvature in a second plane that is perpendicular to the first plane.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 26, 2019
    Assignee: Facebook Technologies, LLC
    Inventor: Andrew John Ouderkirk
  • Patent number: 10359665
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 23, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Patent number: 10310258
    Abstract: For multi-layer imaging, an apparatus is disclosed. The apparatus includes a transparent display having multiple liquid crystal display (LCD) layers. The apparatus includes an image capture module that interfaces with a camera to capture multiple images of a target object. The apparatus includes an image processing module that identifies a bright spot in first and second images, identifies the target object in the first and second images proximate to the bright spot, and modifies at least one of first and second images to diminish the bright spot and to emphasize the target object. The apparatus includes an image display module that interfaces with the transparent display member to display the first image with the first LCD layer and display the second image with the second LCD layer after modifying at least one of the first and second images.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: June 4, 2019
    Assignee: International Business Machines Corporation
    Inventors: Inseok Hwang, Su Liu, Eric J. Rozner, Chin Ngai Sze
  • Patent number: 10290827
    Abstract: A display device, in which a plurality of display panels overlap each other and an image is displayed on each of the display panels, comprises a first frame supporting the plurality of display panels. The first frame includes a frame-shaped frame unit on which the plurality of display panels are placed, and a plurality of spacers attached to the frame unit. The plurality of spacers include at least one reference spacer fixed to the frame unit and at least one position adjustment spacer adjustably attached to the frame unit. An outer peripheral end of each of the plurality of display panels is fixed while pushed against the reference spacer and the position adjustment spacer.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: May 14, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yusuke Katagiri, Masaki Tsubokura
  • Patent number: 10216018
    Abstract: A viewing angle control device including at least one liquid crystal panel, at least one compensation film and polarizers is provided. Each of the at least one liquid crystal panel includes two transparent conductive layers and liquid crystal molecules. The polarizers include at least one first polarizer and a second polarizer. The at least one first polarizer is located between the at least one compensation film and the at least one liquid crystal panel. The second polarizer is located at a side of the at least one liquid crystal panel, the at least one compensation film and the at least one first polarizer. When there is no potential difference between the transparent conductive layers, an optical axis of each of the liquid crystal molecules is parallel or vertical to a transmission axis of the at least one first polarizer. A viewing angle controllable display apparatus is also provided.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: February 26, 2019
    Assignee: Coretronic Corporation
    Inventors: Chong-Yang Fang, Wen-Chun Wang
  • Patent number: 10203439
    Abstract: The disclosure discloses a double-side liquid crystal display device and a backlight module thereof, the two metal wire grating polarized films with perpendicular metal wire gratings can utilize reflective light of the liquid crystal panel on one side to provide incidence light to the liquid crystal panel on the other side, the incidence light and the reflective light of the two liquid crystal panels compensate mutually to improve light utilization efficiency significantly and brightness of the two liquid crystal panels, and brightness of the two is unified simultaneously; moreover, the built-in metal wire grating polarized film substitutes the polarized plate attached on outside of the substrate, which can reduce processes and costs without sacrificing characteristics of polarized light; white backlight is formed by the blue LED, the red and green quantum dots to increase color gamut and brightness of the double-side display device.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: February 12, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Minghui Li
  • Patent number: 10191337
    Abstract: A liquid crystal display device includes: a first display panel displaying a color image, and a second display panel displaying a black-and-white image. The first display panel includes a first pixel corresponding to a first transmission area transmitting light having first color, a second pixel corresponding to a second transmission area transmitting light having second color, and a third pixel corresponding to a third transmission area transmitting light having third color. The second display panel includes a fourth pixel overlapping the first pixel, and a fifth pixel overlapping the second pixel and the third pixel. An area of the fourth pixel is different from an area of the fifth pixel.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: January 29, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Kikuo Ono
  • Patent number: 10082675
    Abstract: Liquid crystal devices are described that maintain performance of polarization/amplitude modulation under high irradiance conditions. Configurations that isolate polarizing elements under high thermal load are discussed which allow other elements, such as glass, which may be sensitive to stress birefringence to remain near optimum thermal conditions.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 25, 2018
    Assignee: RealD Inc.
    Inventors: Gary D. Sharp, Scott Gilman, David A. Coleman
  • Patent number: 10073315
    Abstract: A display device includes a polymer layer including dichroic dyes and a liquid crystal, which is not mixed or reacted with the polymer layer, dispersed in the polymer layer. The polymer and the liquid crystal have different refractive indices from each other.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: September 11, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
  • Patent number: 10061187
    Abstract: The present invention provides a reflection member including a selective reflection layer; and two ¼ wavelength phase difference plates, in which the selective reflection layer is disposed between the two ¼ wavelength phase difference plates, the selective reflection layer includes a layer of a fixed cholesteric liquid crystal phase having a central wavelength of selective reflection at a visible light range wavelength ?i, and the selective reflection layer includes a layer in which a twisted direction of a helix of a cholesteric liquid crystal is only one of right or left as the layer of a fixed cholesteric liquid crystal phase having selective reflection at the wavelength ?i. The reflection member of the present invention can be used particularly as a heat shielding member, which can reduce damage to the optical systems due to external light including visible light while efficiently extracting projected light.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 28, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Mitsuyoshi Ichihashi, Yuki Saiki, Kazuhiro Oki, Takao Taguchi
  • Patent number: 10061370
    Abstract: Disclosed herein are techniques related to privacy at display devices. The techniques include an apparatus having an electroactive privacy layer of a display device. The electroactive privacy layer is configured to restrict a propagation direction of light emission associated with a display layer of the display device. The restriction of propagation is generated by micro louvers formed in the electroactive privacy layer.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 28, 2018
    Assignee: INTEL CORPORATION
    Inventors: Dong Yeung Kwak, Ramon C. Cancel Olmo
  • Patent number: 10012866
    Abstract: The present invention provides a mirror display that can match the peripheral environment having diffusely reflecting surfaces in the mirror mode, and an electronic device including the mirror display. The mirror display includes a half mirror plate that includes a reflective polarizer and a display device. The half mirror plate further includes a light-diffusing member that diffuses at least part of incident light. The mirror display includes, in the order from the back surface side, the display device, the reflective polarizer, and the light-diffusing member.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: July 3, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura, Shigeaki Mizushima
  • Patent number: 9995963
    Abstract: A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Byung Park, Sung Sik Yun, Jong Hyuk Kang, Hae Il Park, Hyun Min Cho
  • Patent number: 9983446
    Abstract: The present disclosure provides a single substrate display panel and fabricating method thereof. The fabricating method of a single substrate display panel comprises steps of providing a parallel electric field substrate; and forming a display medium layer above the parallel electric field substrate. The present disclosure also provides a fabricating method of the single substrate display panel. The present disclosure can achieve single substrate display so as to reduce the weight and thickness of the liquid crystal display panel and improve display quality.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: May 29, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongsheng Wang, Youmei Dong, Wenbo Li, Yanbing Wu
  • Patent number: 9977298
    Abstract: A display panel includes an upper plate including a first substrate, a first electrode layer formed on an inner surface of the first substrate, and an absorptive polarizing film formed on an outer surface of the first substrate and having a first polarization axis, a lower plate including a second substrate, a second electrode layer formed on an inner surface of the second substrate, and a reflective polarizing film formed on an outer surface of the second substrate and having a second polarization axis perpendicular or parallel to the first polarization axis, an LC layer filled between the upper plate and the lower plate, and an LC driving power supply connected between the first electrode layer and the second electrode layer and configured to selectively provide an LC driving voltage to the LC layer changing a polarization direction of incident light in the LC layer.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-yong Lee, Hyeong-sik Choi, Ju-seong Hwang
  • Patent number: 9946128
    Abstract: In an image display device including a first display panel and a second display panel, there are provided a first panel body, a first panel body emission-side polarizing plate disposed at a front-surface side with respect to the first panel body, a second panel body, a second panel body incidence-side polarizing plate disposed at a back-surface side with respect to the second panel body, at least one inter-panel polarizing plate disposed between the first panel body and the second panel body, and a back-surface irradiation light source configured to emit light toward the back-surface side. The back-surface irradiation light source is provided in one of regions between the first panel body emission-side polarizing plate and the second panel body incidence-side polarizing plate.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 17, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kenta Fukuoka
  • Patent number: 9695362
    Abstract: A color display device includes a plurality of pixels. Each of the pixels includes a first transparent electrode and a second transparent electrode, opposing to each other, a polymer layer between the first transparent electrode and the second transparent electrode, a first coloring material dispersed in the polymer layer, liquid crystals provided in the polymer layer, and a second coloring material dispersed in the liquid crystals. The first coloring material and the second coloring material presents different colors, and each of the first coloring material and the second coloring material includes at least one of a red coloring material, a green coloring material, a blue coloring material, a yellow coloring material, a cyan coloring material, and a magenta coloring material.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 4, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
  • Patent number: RE48915
    Abstract: A transparent display apparatus is provided that is constructed to transmit or block a light of images selectively according to a supply of electric power to a conventional transparent organic light emitting diode. The transparent display apparatus includes a transparent organic light emitting diode having a glass substrate, a transparent anode, a hole transport layer, an emitting layer, an electron transport layer and a transparent cathode. The transparent display apparatus includes an insulating layer stacked on the transparent cathode, and first and second transparent ITOs stacked on the insulating layer to deliver electromotive force onto an entire surface and to transmit or block the light of images according to the on/off state of a power source. The transparent display apparatus also includes an electro chromic layer provided between the first and the second transparent ITOs and including transparent and colorless chemicals.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: February 1, 2022
    Inventor: Ho-Seong Seo