Method and test system for testing light-fidelity coverage

    公开(公告)号:US12224798B2

    公开(公告)日:2025-02-11

    申请号:US18058995

    申请日:2022-11-28

    Inventor: Kok Meng Wong

    Abstract: The present disclosure relates to a method of testing light-fidelity (LiFi) coverage. A mobile light-fidelity tester is moved in a test area in which at least one indoor light-fidelity access point is located while performing coverage tests of the at least one indoor light-fidelity access point. Further, a coverage report of the at least one indoor light-fidelity access point is returned. In addition, a test system is described.

    Display panel, motherboard and mini LED display device

    公开(公告)号:US12223867B2

    公开(公告)日:2025-02-11

    申请号:US18299514

    申请日:2023-04-12

    Abstract: A display panel, a motherboard, and a mini LED display device. The display panel includes: a panel edge extending along a first direction, and a display region and a test region. The test region is between the display region and the panel edge and includes test pads. At least two test pads are arranged along the first direction, adjacent ones of which are spaced by at least two first electrostatic discharge protection wires extending from one side of the display region adjacent to the test region to the panel edge. Each first electrostatic discharge protection wire includes a first line segment located between two adjacent test pads and a second line segment adjacent to the panel edge. A distance between adjacent first line segments between two adjacent test pads in the first direction is less than a distance between adjacent second line segments in the first direction.

    Display panel and display apparatus

    公开(公告)号:US12219803B2

    公开(公告)日:2025-02-04

    申请号:US17507421

    申请日:2021-10-21

    Inventor: Yu Cai

    Abstract: A display panel and a display apparatus are provided. The display panel includes a substrate, a light-emitting component layer and a light-extraction layer. An orthographic projection of a first-color light-emitting component of the light-emitting component layer overlaps with an orthographic projection of a first light-extraction structure of the light-extraction layer. An orthographic projection of the first light-extraction structure overlaps with an orthographic projection of the first-color light-emitting component. First light-extraction structures includes first sidewalls including first sub-sidewall and second sidewalls. A maximum angle α1 formed between a tangent plane of the first sidewall and the plane of the substrate is greater than a maximum angle α2 formed between a tangent plane of the second sub-sidewall and the plane of the substrate.

    Systems and methods for video-based positioning and navigation in gastroenterological procedures

    公开(公告)号:US12217449B2

    公开(公告)日:2025-02-04

    申请号:US17614227

    申请日:2020-05-22

    Abstract: The present disclosure provides systems and methods for improving detection and location determination accuracy of abnormalities during a gastroenterological procedure. One example method includes obtaining a video data stream generated by an endoscopic device during a gastroenterological procedure for a patient. The method includes generating a three-dimensional model of at least a portion of an anatomical structure viewed by the endoscopic device based at least in part on the video data stream. The method includes obtaining location data associated with one or more detected abnormalities based on localization data generated from the video data stream of the endoscopic device. The method includes generating a visual presentation of the three-dimensional model and the location data associated with the one or more detected abnormalities; and providing the visual presentation of the three-dimensional model and the location data associated with the detected abnormality for use in diagnosis of the patient.

    Display panel and display apparatus

    公开(公告)号:US12216345B2

    公开(公告)日:2025-02-04

    申请号:US17832927

    申请日:2022-06-06

    Abstract: A display panel and a display apparatus are described. In an embodiment, the display panel includes a display area and a bezel area; a first support structure located in the display area, the first support structure including a plurality of first support portions; an encapsulation adhesive located in the bezel area; a second support structure located in the bezel area. In an embodiment, at different positions of the bezel area, the second support structure and the encapsulation adhesive are at an equal distance from each other within a preset error range; the second support structure includes at least one second support portion; and in a direction perpendicular to a plane in which the display panel is located, at least some of the second support portions each has orthographic projection area larger than orthographic projection area of the first support portion.

    Measurement instrument, measurement system, and testing method of testing a device under test

    公开(公告)号:US12216151B2

    公开(公告)日:2025-02-04

    申请号:US18306829

    申请日:2023-04-25

    Abstract: A measurement instrument for testing a DUT comprises a common port configured to be connectable to a signal output of the DUT for receiving a forward-travelling signal from the DUT. The measurement instrument further comprises a signal line connected to the common port, a signal analysis circuit and a signal generator circuit. The signal analysis circuit receives the forward-travelling signal from the common port. The signal analysis circuit is configured to analyze the forward-travelling signal in order to assess a performance of the DUT. The signal generator circuit is connected to the signal line and is configured to generate a backward-travelling signal that is forwarded to the common port. The signal generator circuit comprises a reference signal input configured to receive a reference signal from a reference signal generator. The signal generator circuit is configured to generate the backward-travelling signal based on the reference signal.

    Display panel and display apparatus

    公开(公告)号:US12211432B2

    公开(公告)日:2025-01-28

    申请号:US18519485

    申请日:2023-11-27

    Inventor: Minhui Zheng

    Abstract: A display panel includes light-emitting elements and pixel circuits. The pixel circuit includes a comparator and a first transistor. The first transistor and the light-emitting element are electrically connected in series between a first power supply terminal and a second power supply terminal. An output terminal of the comparator is coupled to a control terminal of the first transistor. The comparator includes a first input terminal receiving a data signal, and a second input terminal receiving a step signal. The comparator is configured to compare a voltage of the data signal with a voltage of the step signal, and supply a comparison result to the control terminal of the first transistor. An operation cycle of the pixel circuit includes a light-emitting phase in which the step signal includes plateau signals and ramp signals, plateau signals are constant-voltage signals, and voltages of ramp signals progressively change over time.

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