LIQUID CRYSTAL LENS AND IMAGING DEVICE USING THE SAME

    公开(公告)号:US20200073198A1

    公开(公告)日:2020-03-05

    申请号:US16439058

    申请日:2019-06-12

    Abstract: A liquid crystal lens and an imaging device including the liquid crystal lens are provided. The liquid crystal lens includes: a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer located between the first substrate and the second substrate; the liquid crystal layer is configured to transmit a first portion of incident light transmitted through the first substrate, and converge the first portion of incident light to a predetermined region of the second substrate; and a light adjustment structure arranged between the first substrate and the second substrate, and configured to enable a second portion of incident light transmitted through the first substrate to be transmitted through the liquid crystal layer and converged to the predetermined region.

    METHOD AND DEVICE FOR DETECTING DISPLAY PANEL DEFECT

    公开(公告)号:US20250148586A1

    公开(公告)日:2025-05-08

    申请号:US19013603

    申请日:2025-01-08

    Abstract: A method for detecting a display panel defect, including: collecting a panel image of a to-be-detected display panel, a plurality of first pixels of the display panel corresponding to a plurality of second pixels in the panel image; converting the panel image into a binary image; dilating each bright spot region in the binary image such that adjacent bright spot regions communicate with each other to form at least one closed communication region in the binary image; determining a region of interest mask image in the binary image in accordance with the at least one closed communication region; determining a region of interest in accordance with the region of interest mask image and the panel image; and performing feature identification on the region of interest to determine a defect of the display panel.

    METHOD AND DEVICE FOR DETECTING DISPLAY PANEL DEFECT

    公开(公告)号:US20230005130A1

    公开(公告)日:2023-01-05

    申请号:US17784073

    申请日:2021-06-11

    Abstract: A method for detecting a display panel defect, including: collecting a panel image of a to-be-detected display panel, a plurality of first pixels of the display panel corresponding to a plurality of second pixels in the panel image; converting the panel image into a binary image; dilating each bright spot region in the binary image such that adjacent bright spot regions communicate with each other to form at least one closed communication region in the binary image; determining a region of interest mask image in the binary image in accordance with the at least one closed communication region; determining a region of interest in accordance with the region of interest mask image and the panel image; and performing feature identification on the region of interest to determine a defect of the display panel.

    SENSOR, METHOD FOR PRODUCTING SAME, AND TEST METHOD AND DEVICE TEHREOF

    公开(公告)号:US20220082444A1

    公开(公告)日:2022-03-17

    申请号:US17407998

    申请日:2021-08-20

    Abstract: A sensor includes: a substrate and at least one infrared temperature measurement unit disposed on the substrate. An infrared temperature measurement sub-unit includes: a first support portion, at least one second support portion, a thermocouple, and an infrared absorption portion. The thermocouple includes a first electrode and a second electrode, each of which includes a first end and a second end; the first ends of the first electrode and the second electrode are connected and disposed on the first support portion; the infrared absorption portion is disposed on the first support portion and covers the first ends of the first electrode and the second electrode; the second ends of the first electrode and the second electrode are not connected and disposed on the second support portion; and in the infrared temperature measurement unit, a cavity structure is included between at least the adjacent first and second support portions.

    OPTICAL COMMUNICATION SWITCH, OPTICAL CONTROLLING METHOD, ARRAY SUBSTRATE, AND DISPLAY DEVICE

    公开(公告)号:US20200096832A1

    公开(公告)日:2020-03-26

    申请号:US16388643

    申请日:2019-04-18

    Abstract: An optical communication switch, an optical controlling method, an array substrate and a display device are provided, the optical communication switch including: a first substrate and a second substrate opposite thereto; a first optical medium layer formed therebetween by a phase-change material, which has a first refractive index in a first state in which light rays implement one of an optical path state and an optical drop state, and a second refractive index in a second state in which light rays implement the other one of the optical path state and the optical drop state; a second optical medium layer also formed therebetween and in contact with the first optical medium layer by abutting against it closely, the second optical medium layer having a refractive index matching the first or second refractive index; and a heating device enabling the phase-change material to switch between the first and second states.

    VEHICLE POSITIONING METHOD AND APPARATUS, AND VEHICLE

    公开(公告)号:US20220236364A1

    公开(公告)日:2022-07-28

    申请号:US17615482

    申请日:2020-12-30

    Abstract: The present disclosure provides a vehicle positioning method, including: a first controller synchronously controlling each first beacon node to send a detection initial signal; a second controller determining a target beacon node among second beacon nodes and controlling the target beacon node to send a detection feedback signal; the first controller synchronously controlling each first beacon node to send a corresponding detection signal to be responded and recording a first moment of sending the detection signal to be responded; the second controller controlling the target beacon node to send a detection response signal; the first controller recording a second moment of receiving the detection response signal and determining a distance between each first beacon node and the target beacon node according to the first moment and the second moment, so as to determine a position of the target beacon node relative to the first vehicle.

    Positioning Method, Positioning System, and Tag

    公开(公告)号:US20210165977A1

    公开(公告)日:2021-06-03

    申请号:US17106683

    申请日:2020-11-30

    Abstract: A positioning method performed at a server includes: receiving, at a frequency, arrival time information from a plurality of readers; determining, according to the arrival time information, that the tag is in a sensing auxiliary region of a positioning region; sending a first control command to one of the readers, so that the tag activates an inertial sensor thereof according to the first control command; receiving, from the reader, position information of the tag in the sensing auxiliary region obtained by the inertial sensor; determining, according to the position information of the tag in the sensing auxiliary region, a first motion trajectory of the tag in the sensing auxiliary region; and determining, according to the first motion trajectory, whether the tag enters one of the first regions.

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