Patents Examined by Edward J. Glick
  • Patent number: 11567382
    Abstract: A terminal is provided, and the terminal includes a housing, a front screen, a circuit board, and a power supply. The front screen is disposed on the housing, both the circuit board and the power supply are disposed inside the housing, and the power supply is connected to the circuit board. The front screen includes a toughened glass, a color changing layer, and a display screen that are sequentially stacked. The color changing layer is connected to the circuit board, and can change a color when receiving power supply. The color changing layer is disposed in the front screen, and may change a color when receiving the power supply from the circuit board. The color changing layer is configured to change only a color and cannot display a complex image, and power consumption of the color changing layer is far less than that of the display screen.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: January 31, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhongzhi Tang, Zhen He, Ming Cai, Heshuai Si, Banghong Hu
  • Patent number: 11556030
    Abstract: According to one embodiment, a liquid crystal display device includes a first liquid crystal device, a second liquid crystal device, and a liquid crystal display panel, the first liquid crystal device including a first substrate including a first electrode thereon, a second substrate including a second electrode thereon, and a first cholesteric liquid crystal layer, the second liquid crystal device including a third substrate including a third electrode thereon, a fourth substrate including a fourth electrode thereon, and a second cholesteric liquid crystal layer, wherein the first liquid crystal device and the second liquid crystal device are stacked successively.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: January 17, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kasumi Hase, Koichi Igeta, Shinichi Komura
  • Patent number: 11543565
    Abstract: A display panel, a display device and a display method. The display panel includes a first microlens array, a pixel island array and a second lens. The pixel island array is configured to display a plurality of sub-original images. The first microlens array is configured to converge light emitted from the plurality of sub-original images so as to obtain imaging light, and the imaging light is capable of forming a first virtual image. The second lens is on a user viewing side of the display panel relative to the first microlens array, and the second lens is configured to converge the imaging light so as to obtain a second virtual image. The first virtual image is a virtual image in which the plurality of sub-original images are stitched and enlarged, and the second virtual image is an enlarged virtual image of the first virtual image.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 3, 2023
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Tao Hong, Zhenxing Zhou, Gaolei Xue, Qiuyu Ling, Jifeng Tan, Xianqin Meng, Xiaochuan Chen
  • Patent number: 11536994
    Abstract: A liquid crystal device includes a liquid crystal panel and a liquid crystal driver. The liquid crystal panel includes a segment electrode, a segment signal line connected to the segment electrode, and a segment signal line connected to the segment electrode. The liquid crystal driver includes a segment terminal to be connected to the segment signal line, a segment driving circuit that outputs a segment driving signal to the segment terminal, a segment terminal to be connected to the segment signal line, and an anomalous segment detection circuit that detects anomalous driving of the segment electrode based on a segment monitoring signal that is input to the segment terminal from the segment electrode via the segment signal line.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: December 27, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hironori Kobayashi, Norichika Muraki
  • Patent number: 11538269
    Abstract: An optical fingerprint sensor (OFPS) for use with a liquid-crystal display (LCD) panel having a backlight module is positioned under the backlight module and captures an image of a fingerprint sensing area on the LCD panel through an aperture in both a reflector and a metal shield of the backlight module. The OFPS includes a sensor layer, a wafer-level optic layer bonded to the sensor layer and an infrared pass filter (IRPF) coating formed on a substantially flat top surface of the wafer-level optic layer. An OFPS may be formed with a flat top and may include a wafer-level optic layer having one or more lenses to direct light generated by a light source beneath the wafer-level optic layer. The wafer-level lenses may be bonded with the fingerprint scanner. The flat top of the OFPS may be made with an IRPF coating.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: December 27, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Tsung-Wei Wan, Wei-Ping Chen
  • Patent number: 11526050
    Abstract: A display device is provided. The display device includes a first substrate, a first display structure disposed on the first substrate and a second display structure disposed on the first substrate. The first display structure and the second display structure are different from each other and are selected from a liquid-crystal display, an organic light-emitting diode display, an inorganic light-emitting diode display or a laser display. The display device also includes a first polarizing structure. The first polarizing structure is disposed on the first display structure and the second display structure.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 13, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Jia-Yuan Chen, Kuan-Feng Lee, Tsung-Han Tsai, Yuan-Lin Wu
  • Patent number: 11526053
    Abstract: The present disclosure provides an optical assembly, a liquid crystal display device, and an electronic equipment. The optical assembly includes: a linear polarizer, a half-wave plate, and a quarter-wave plate stacked in sequence. An absorption axis of the linear polarizer is substantially perpendicular to a first direction, and the first direction is parallel to a surface of the linear polarizer; an angle between an in-plane slow axis of the half-wave plate and the first direction is in a range of 100° to 110°; an angle between an in-plane slow axis of the quarter-wave plate and the first direction is in a range of 160° to 170°.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 13, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xuan Zhong, Hongliang Yuan, Jian Wang, Qi Zheng, Wei Zhao, Xiaojuan Wu, Zhangxiang Cheng, Jiaxing Wang
  • Patent number: 11520184
    Abstract: A color conversion display panel includes: a color conversion layer provided on a substrate and including a semiconductor nanocrystal and a scatterer; and a transmission layer provided on the substrate, wherein the semiconductor nanocrystal is included at greater than 30 wt % of an entire content of the color conversion layer, and the scatterer is included at equal to or less than 12 wt % of the entire content of the color conversion layer.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: December 6, 2022
    Inventors: Won Woo Jang, Jin Ho Park, Won Sik Oh, Hyang-A Park, Seung In Baek, Seoung Bum Pyoun, Jae Min Ha, Hyun Ji Ha
  • Patent number: 11520197
    Abstract: An active-pixel device assembly with stray-light reduction includes an active-pixel device including a semiconductor substrate and an array of active pixels, a light-transmissive substrate disposed on a light-receiving side of the active-pixel device, and a rough opaque coating disposed on a first surface of the light-transmissive substrate and forming an aperture aligned with the array of active pixels, wherein the rough opaque coating is rough so as to suppress reflection of light incident thereon from at least one side. A method for manufacturing a stray-light-reducing coating for an active-pixel device assembly includes depositing an opaque coating on a light-transmissive substrate such that the opaque coating forms a light-transmissive aperture, and roughening the opaque coating to form a rough opaque coating, said roughening including treating the opaque coating with an alkaline solution.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 6, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Chun-Sheng Fan, Wei-Feng Lin
  • Patent number: 11513403
    Abstract: A liquid crystal panel (display panel) 11 includes a display area AA configured to display images, a non-display area NAA outside the display area AA, a light blocking layer (a light blocking portion) 11i disposed at least in the non-display area NAA and configured to block light, a signal line connection line (a narrow line portion) 29 where lines are arranged at intervals in the non-display area NAA, and a common electrode connection line portion (a wide line portion) 30 disposed in the non-display area and having a line width greater than that of the signal line connection line 29 and including empty portions 34.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: November 29, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ryosuke Yuminami, Masakazu Miyamoto, Masahiro Yoshida, Masayuki Takashima, Toshiaki Fujihara
  • Patent number: 11506940
    Abstract: A transmittance-variable layer and a transmittance-variable device including the same are disclosed herein. In some embodiments, a transmittance-variable device includes a polarization layer and a transmittance-variable layer disposed on the polarization layer, wherein the transmittance-variable layer includes a first base layer disposed on the polarization layer and a spacer fixed on a surface of the first base layer opposite to the polarization layer, and a second base layer facing the first base layer and spaced apart from the first base layer by the first spacer, wherein the first spacer maintains a gap between the first and second base layers, and a first light modulating material disposed in the gap.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 22, 2022
    Inventors: Jung Woon Kim, Su Young Ryu, Byoung Kun Jeon, Yong Sung Choi, Seong Min Lee, Hye Min Yu
  • Patent number: 11506927
    Abstract: The present invention provides a polarizer, a manufacturing method of the polarizer, and a display panel. The polarizer includes a transparent base substrate and a metal wire grid layer arranged on the transparent base substrate. The metal wire grid layer includes at least two wire grid units spaced apart from each other, and each of the wire grid units includes a plurality of metal wires parallel to each other. The transparent base substrate has a light transmissive region and a light emitting region, and the wire grid units are arranged corresponding to the light emitting region.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 22, 2022
    Inventor: Bei Jiang
  • Patent number: 11493801
    Abstract: According to one embodiment, a display device comprises a liquid crystal layer held between a first substrate and a second substrate, a display region having a first region in which a plurality of pixels are provided, a non-display region provided in an island-like shape in the display region and having a second region, a first polarizer and a second polarizer that overlap the first region, and a third polarizer and a fourth polarizer that overlap the second region, wherein a transmission axis of the fourth polarizer and a transmission axis of the second polarizer form an angle other than 0° and other than 90° with each other.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: November 8, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventor: Mitsutaka Okita
  • Patent number: 11493791
    Abstract: A light blocking screen includes a liquid crystal array mounted to a window. The liquid crystal array has a plurality of liquid crystal (LC) pixels, each of which is selectively darkenable. A controller is operatively connected to the liquid crystal array and configured to darken a set of the LC pixels, such that the darkened set of LC pixels limits light passage through the window in one or more selected areas. The LC pixels need not limit light passage through the entire window. The controller may determine a location of a glare source relative to the window and a location of a user proximate the window, and then darken the set of the LC pixels in an area between the glare source and the user, such that the glare source is limited from shining onto the user. The screen may be incorporated into vehicles or buildings.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventor: Benjamin J. Richards
  • Patent number: 11487057
    Abstract: An optical substrate and a display device are provided. The optical substrate includes a light guide plate and a plurality of light selection units, wherein, the light guide plate includes a light-incident surface and a light-exiting surface, and the light-exiting surface includes a plurality of light-exiting regions; each light selection unit is configured to select light incident from the light-incident surface and propagating in the light guide plate, such that monochromatic light of different colors are emitted from multiple light-exiting regions corresponding to the each light selection unit, and each of the multiple light-exiting regions emits monochromatic light of a single color.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: November 1, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Xianqin Meng, Jifeng Tan, Xiaochuan Chen
  • Patent number: 11487163
    Abstract: This application discloses a display panel and a display apparatus. The display panel includes: a substrate; a seal, arranged around a non-display region of the substrate, to form a sealing region; a peripheral component, exposed out of the sealing region; and a protection component, covering the peripheral component. The peripheral component includes a metal line and a black matrix. The protection component includes a seal, a support spacer, a Tuffy adhesive, a black adhesive, and a passivation layer. The Tuffy adhesive is attached on a side portion of the substrate, to completely cover the metal line and the black matrix.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 1, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jia-Ren Lin
  • Patent number: 11480836
    Abstract: A liquid crystal on silicon device is described. The liquid crystal on silicon device includes a plurality of mirror electrodes, a transparent electrode, a liquid crystal material, and a plurality of microlenses. The plurality of mirror electrodes are arranged periodically to form an array of pixels, each pixel included in the array of pixels configurable to reflect incident light. The transparent electrode is optically aligned with the plurality of mirror electrodes. The liquid crystal material is disposed between the transparent electrode and the plurality of mirror electrodes. The plurality of microlenses are optically aligned with the plurality of mirror electrodes. Each microlens included in the plurality of microlenses is positioned to focus the incident light on a respective one of the plurality of mirror electrodes.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: October 25, 2022
    Assignee: Omnivision Technologies, Inc.
    Inventors: Alireza Bonakdar, Libo Weng, Badrinath Padmanabhan
  • Patent number: 11474287
    Abstract: Provided is an optical element with which a high diffraction efficiency can be obtained with a simple configuration. The optical element includes: an optically-anisotropic layer that is formed using a composition including a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the optically-anisotropic layer has a region in which an alignment direction of a liquid crystal compound in at least one of upper and lower interfaces has a pre-tilt angle with respect to the interface.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: October 18, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Hiroshi Sato, Ayako Muramatsu
  • Patent number: 11474388
    Abstract: The present disclosure relates to a display panel. The display panel includes a first substrate, a second substrate, a display material layer, an active component layer, a color filter layer and a light source. The display material layer is disposed between the first substrate and the second substrate. The active component layer and the color filter layer are disposed between the first substrate and the display material layer. The light source is disposed on one side of the second substrate, and emits light. The light passes through the second substrate and the color filter layer and arrives at the first substrate, and is reflected by the first substrate and then enters the color filter layer. The light further passes through the color filter layer, enters the display material layer, passes through the display material layer, and is outputted to the exterior.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 18, 2022
    Assignee: SICHUAN LONGHUA FILM CO. LTD.
    Inventors: Po Hung Yao, Yao-Chang Wang, Erh-Ming Hsieh
  • Patent number: 11467327
    Abstract: The present disclosure provides numerous applications for the use of liquid crystal polarization gratings (LCPGs) to controllably steer light. When combined with an image sensor, light generated or reflected from different fields of view (FOV) can be steered, allowing an increase in the FOV or the resolution of the image. Further, the LCPG can stabilize the resulting image, counteracting any movement of the image sensor. The combination of LCPGs and liquid crystal waveguides (LCWGs) allows fine deflection control of light (from the LCWG) over a wild field of view (from the LCPG). Further applications of LCPGs include object tracking and the production of depth images using multiple imaging units and independently steered LCPGs. The LCPG may be used in controlling both the projection and reception of light.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Analog Devices International Unlimited Company
    Inventors: Eoin E. English, Andrew William Sparks, Scott Robert Davis, Tyler Adam Dunn, Maurizio Zecchini, Michael Ziemkiewicz, Ronald A. Kapusta, Javier Calpe Maravilla, Paul O'Sullivan, Jonathan Ephraim David Hurwitz, Erik D. Barnes, Monica Redon Segrera, Krystian Balicki