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    Distributed optical phase modulator
    1.
    发明授权
    Distributed optical phase modulator 有权

    公开(公告)号：US12025865B2

    公开(公告)日：2024-07-02

    申请号：US17639345

    申请日：2020-03-30

    Applicant: SUZHOU LYCORE TECHNOLOGIES CO., LTD.

    Inventor： Hanxiao Liang ,  Yipin Song

    IPC: G02F1/035 ,  G02F1/03

    CPC classification number: G02F1/0356 ,  G02F1/0327 ,  G02F2201/12 ,  G02F2201/127

    Abstract: Provided is a distributed optical phase modulator, comprising: a substrate (10); an optical waveguide (20) arranged on the substrate (10); a drive electrode (30) that is arranged on the substrate (10) and comprises a plurality of sub drive electrodes (31) arranged at intervals; and at least one shielding electrode (40), wherein at least some shielding electrodes and the sub drive electrodes (31) are arranged at intervals. The optical waveguide (20) sequentially passes through the sub drive electrodes (31) and the shielding electrodes (40). The length of each part of the drive electrode (30) is far less than the total length of an equivalent traditional modulator, and the drive signal voltage of each part is also far less than the drive signal voltage of the equivalent traditional modulator. In each part of the drive electrode (30), the propagation of an optical signal and the propagation of an electrical signal can be approximately synchronous, even synchronous. The phenomenon of walk-off between the optical signal and the electrical signal is minimized, and the upper limit of a modulation bandwidth is improved. The shielding electrodes (40) are respectively arranged between the sub drive electrodes (31), so that crosstalk between the sub drive electrodes (31) can be shielded, and crosstalk between the sub drive electrodes (31) can be greatly reduced.

    System, method and apparatus for non-mechanical optical and photonic beam steering
    2.
    发明授权
    System, method and apparatus for non-mechanical optical and photonic beam steering 有权

    公开(公告)号：US11835838B2

    公开(公告)日：2023-12-05

    申请号：US18128160

    申请日：2023-03-29

    Applicant: Exciting Technology LLC

    Inventor： Paul F. McManamon ,  Abtin Ataei

    IPC: G02F1/29 ,  G02B5/32

    CPC classification number: G02F1/29 ,  G02B5/32 ,  G02F2201/12 ,  G02F2203/02 ,  G02F2203/07 ,  G02F2203/24

    Abstract: An example system includes a high-side electrode layer having a first number of electrical members alternated with, and electrically coupled to adjacent ones of a second number of electrical members, where either the first number of electrical members or the second number of electrical members are discrete electrodes, and the other one of the first or second number of electrical members are resistors. Accordingly, the high-side electrode layer is formed from alternating discrete electrodes and resistors. The example system further includes a low-side electrode layer, and an electro-optic (EO) layer having an EO active material at least partially positioned between the high-side electrode layer and the low-side electrode layer, thereby forming a number of active cells of the EO layer.

    OPTICAL MODULATOR, PHASE SHIFTER, AND OPTICAL COMMUNICATION APPARATUS
    3.
    发明公开
    OPTICAL MODULATOR, PHASE SHIFTER, AND OPTICAL COMMUNICATION APPARATUS 审中-公开

    公开(公告)号：US20230333439A1

    公开(公告)日：2023-10-19

    申请号：US18165039

    申请日：2023-02-06

    Applicant: Fujitsu Optical Components Limited

    Inventor： Masaki SUGIYAMA

    IPC: G02F1/225 ,  G02F1/21 ,  G02F1/01 ,  H04J14/06

    CPC classification number: G02F1/2252 ,  G02F1/212 ,  G02F1/0121 ,  H04J14/06 ,  G02F2201/12 ,  G02F2201/17 ,  G02F2203/50

    Abstract: An optical modulator includes a first shifter and a second shifter. The first shifter includes a first waveguide through which first light passes, and a first electrode that causes power according to a drive voltage to act on the first waveguide. The first shifter shifts a phase of the first light passing through the first waveguide in accordance with the drive voltage applied to the first electrode. The second shifter includes a second waveguide through which second light passes, and a second electrode that causes power according to a drive voltage to act on the second waveguide. The second shifter shifts a phase of the second light passing through the second waveguide in accordance with the drive voltage applied to the second electrode. The second shifter is constituted to have a smaller amount of phase shift according to a predetermined amount of drive voltage than the first shifter.

    LIQUID CRYSTAL OPTICAL DEVICE, ARRAY, ELECTRONIC PRODUCT, AND DRIVING METHOD THEREOF
    4.
    发明公开
    LIQUID CRYSTAL OPTICAL DEVICE, ARRAY, ELECTRONIC PRODUCT, AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：US20230305358A1

    公开(公告)日：2023-09-28

    申请号：US18188485

    申请日：2023-03-23

    Applicant: CHENGDU YETA TECHNOLOGY CO., LTD.

    Inventor： Wenbin FENG ,  Bin WANG ,  Mao YE

    IPC: G02F1/29 ,  G09G3/36

    CPC classification number: G02F1/294 ,  G09G3/36 ,  G02F2201/12 ,  G02F2202/16

    Abstract: A liquid crystal optical device includes a liquid crystal layer, a first orientation layer, a second orientation layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate. The second electrode layer includes a conductive line and a plurality of leading-out lines. The conductive line includes a first position and a second position; one end of each leading-out line is connected with the conductive line, the other end thereof is suspended. The conductive line has at least one leading-out position; at least a part of the leading-out position is located between the first and second positions, and at least two of the leading-out positions are different from each other; a resistance between each leading-out position and the first position and a distance between at least a part of each leading-out line in a first direction and the first position satisfies a first condition.

    TOUCH SENSOR DEVICE
    5.
    发明公开
    TOUCH SENSOR DEVICE 审中-公开

    公开(公告)号：US20230280610A1

    公开(公告)日：2023-09-07

    申请号：US18315566

    申请日：2023-05-11

    Applicant: Japan Display Inc.

    Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

    IPC: G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G06F3/041

    CPC classification number: G02F1/13338 ,  G02F1/134363 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/044 ,  G06F3/0412 ,  G02F2201/12 ,  G09G3/3648

    Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.

    VARIABLE LIGHT SHAPING OPTIC USING LIQUID CRYSTALS AND SURFACE RELIEF MICRO-STRUCTURE DIFFUSER
    6.
    发明申请
    VARIABLE LIGHT SHAPING OPTIC USING LIQUID CRYSTALS AND SURFACE RELIEF MICRO-STRUCTURE DIFFUSER 审中-公开

    公开(公告)号：US20190011801A1

    公开(公告)日：2019-01-10

    申请号：US15643904

    申请日：2017-07-07

    Applicant: ABL IP HOLDING LLC

    Inventor： Ravi Kumar Komanduri ,  An Mao ,  Alexander Jacob Schultz

    IPC: G02F1/29

    CPC classification number: G02F1/133504 ,  G02F1/134309 ,  G02F1/29 ,  G02F2201/12 ,  G02F2201/34

    Abstract: In a liquid crystal type variable beam shaping optic, a part of a structure that forms a gap for the liquid crystals includes a surface relief micro-structure diffuser. Due to the micro-features of the diffuser, the gap is non-uniform. A voltage applied to an electrode associated with the diffuser and an electrode associated with an opposing substrate controls the orientation of uniaxial nematic liquid crystals in a material filling the non-uniform gap. For example, the index of refraction of the material may vary relative to an index of refraction of the diffuser, based on variations of the crystal orientation caused by variation of the applied voltage. The change in relative indices of refraction, in the examples, changes a focal length of the variable optic and thus the shape of a light beam optically processed through the liquid crystal optic.

    DISPLAY DEVICE WITH TOUCH SENSOR
    7.
    发明申请
    DISPLAY DEVICE WITH TOUCH SENSOR 审中-公开

    公开(公告)号：US20180299995A1

    公开(公告)日：2018-10-18

    申请号：US16016055

    申请日：2018-06-22

    Applicant: Japan Display Inc.

    Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

    IPC: G06F3/044 ,  G02F1/1343 ,  G06F3/041 ,  G02F1/1333 ,  G09G3/36

    CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/134363 ,  G02F2001/134372 ,  G02F2201/12 ,  G06F3/0412 ,  G09G3/3648

    Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.

    OPTICAL MODULATOR
    10.
    发明申请
    OPTICAL MODULATOR 审中-公开

    公开(公告)号：US20180173026A1

    公开(公告)日：2018-06-21

    申请号：US15796170

    申请日：2017-10-27

    Applicant: Lumentum Operations LLC

    Inventor： Karl KISSA ,  Siu Kwan CHEUNG ,  David M. SHEMO ,  David GLASSNER ,  Ed L. WOOTEN

    IPC: G02F1/03 ,  G02F1/035

    CPC classification number: G02F1/0305 ,  G02F1/0316 ,  G02F1/035 ,  G02F1/225 ,  G02F1/2255 ,  G02F2201/12

    Abstract: An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. The optical modulator may include at least one waveguide parallel to the at least one ground electrode and the at least one signal electrode. The optical modulator may include a first substrate disposed underneath the at least one ground electrode and the at least one signal electrode relative to a surface of the optical modulator. The optical modulator may include a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator. The optical modulator may include a floating conductor disposed between the first substrate and the second substrate.

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