BEAM DEFLECTOR, METHOD FOR OPERATING THE BEAM DEFLECTOR AND EYE TRACKING DEVICE BASED ON THE BEAM DEFLECTOR

    公开(公告)号:US20220404681A1

    公开(公告)日:2022-12-22

    申请号:US17556490

    申请日:2021-12-20

    Abstract: Provided is a beam deflector including: a first electrode layer including a plurality of electrode patterns that are arranged in a first direction; a second electrode layer provided to oppose the first electrode layer; a liquid crystal layer provided between the first electrode layer and the second electrode layer in a second direction perpendicular to the first direction, and including a plurality of liquid crystal molecules; an input channel unit including a plurality of input channels; a demultiplexer configured to divide each of the input channels into a preset number of divided channels, and connect the divided channels to the electrode patterns; and a control circuit connected to the demultiplexer, and configured to control an output signal output from the divided channels to the first electrode layer.

    GEOMETRIC PHASE OPTICAL ELEMENT AND THREE-DIMENSIONAL DISPLAY APPARATUS INCLUDING THE SAME

    公开(公告)号:US20230236436A1

    公开(公告)日:2023-07-27

    申请号:US18194080

    申请日:2023-03-31

    CPC classification number: G02B30/25 G02F1/133528 G02F1/133538

    Abstract: A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.

    BEAM DEFLECTION APPARATUS AND HOLOGRAPHIC DISPLAY APPARATUS INCLUDING THE SAME

    公开(公告)号:US20220163920A1

    公开(公告)日:2022-05-26

    申请号:US17505823

    申请日:2021-10-20

    Abstract: A beam deflection apparatus includes a first beam deflector that deflects light in a first direction and a second beam deflector that deflects light in a second direction perpendicular to the first direction, wherein the first beam deflector and the second beam deflector each include a first region for deflecting light of a first wavelength and a second region for deflecting light of a second wavelength, and a ratio of a spatial period of a signal applied to first drive electrodes arranged in the first region of the first beam deflector to the first wavelength is the same as a ratio of a spatial period of a signal applied to second drive electrodes arranged in the second region of the first beam deflector to the second wavelength.

    AUGMENTED REALITY DEVICE INCLUDING FLAT COMBINER AND ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:US20210103145A1

    公开(公告)日:2021-04-08

    申请号:US16813882

    申请日:2020-03-10

    Abstract: An augmented reality device may include: a light source; a display device comprising a plurality of pixels and configured to generate a first image based on light incident from the light source; and an optical combiner comprising a plurality of optical combining units each including a first area and a second area, wherein the first area reflects a plurality of beams constituting the first image at different reflection angles according to wavelengths and incident angles and transfers the reflected plurality of beams to a predetermined viewer position, and the second area transmits a beam of a second image received from outside and transfers the beam of the second image to the predetermined viewer position.

    LONG WAVELENGTH INFRARED SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:US20230213390A1

    公开(公告)日:2023-07-06

    申请号:US17836568

    申请日:2022-06-09

    CPC classification number: G01J5/20 G01J5/58 G01J2005/202

    Abstract: A long wavelength infrared sensor includes a first magnetoresistive unit; a second magnetoresistive unit; and a light absorption layer that absorbs light and emits heat, wherein the first magnetoresistive unit includes a first magnetoresistive element and a second magnetoresistive element electrically connected to each other, the second magnetoresistive unit includes a third magnetoresistive element and a fourth magnetoresistive element electrically connected to each other, the first and third magnetoresistive elements each have an antiparallel state of magnetization direction, the second and fourth magnetoresistive elements each have a parallel state of magnetization direction, and the first magnetoresistive element is electrically connected to the third magnetoresistive element by way of the second magnetoresistive element.

    HYBRID BONDING STRUCTURES, SEMICONDUCTOR DEVICES HAVING THE SAME, AND METHODS OF MANUFACTURING THE SEMICONDUCTOR DEVICES

    公开(公告)号:US20220093549A1

    公开(公告)日:2022-03-24

    申请号:US17477806

    申请日:2021-09-17

    Abstract: Provided are a hybrid bonding structure, a solder paste composition, a semiconductor device, and a method of manufacturing the semiconductor device. The hybrid bonding structure includes a solder ball and a solder paste bonded to the solder ball. The solder paste includes a transient liquid phase. The transient liquid phase includes a core and a shell on a surface of the core. A melting point of the shell may be lower than a melting point of the core. The core and the shell are configured to form an intermetallic compound in response to the transient liquid phase at least partially being at a temperature that is within a temperature range of about 20° C. to about 190° C.

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