LIGHT GUIDE PLATE ASSEMBLY, BACKLIGHT MODULE AND DISPLAY DEVICE

    公开(公告)号:US20240134105A1

    公开(公告)日:2024-04-25

    申请号:US18530456

    申请日:2023-12-06

    CPC classification number: G02B6/0018 G02B6/0021 G02B6/0031

    Abstract: Provided are a light guide plate assembly, a backlight module, and a display device, which relate to the field of display technologies, and improve uniformity of the light intensity of light emitted from different areas in the light guide plate assembly. The light guide plate assembly includes a reflection portion having an aperture; and a transmission portion. At least part of the transmission portion is located in the aperture. The transmission portion includes a converging portion and a diverging portion. A curvature of a surface of the converging portion adjacent to a light-incoming side of the light guide plate assembly is greater than or equal to 0, and a curvature of a surface of the diverging portion adjacent to the light-incoming side of the light guide plate assembly is smaller than or equal to 0.

    Tactile presentation device
    34.
    发明授权

    公开(公告)号:US11966514B2

    公开(公告)日:2024-04-23

    申请号:US17991633

    申请日:2022-11-21

    CPC classification number: G06F3/016

    Abstract: A tactile presentation device includes a panel, a first supporting member that secures and supports a first end of the panel, a vibration generator disposed at a position facing the first supporting member across a target area to be touched by a user on the panel, and a driving control device that provides the vibration generator with a driving signal. The driving control device makes only the vibration generator vibrate to form a standing wave in an area including the target area between the vibration generator and the first end. A first vibration reflection rate at the first end for a carrier wave from the vibration generator is negative. A second vibration reflection rate for the carrier wave from the vibration generator at a second end of the panel that is opposing to the first end across the vibration generator is greater than the first vibration reflection rate.

    Detection device and display unit
    35.
    发明授权

    公开(公告)号:US11907472B2

    公开(公告)日:2024-02-20

    申请号:US17555893

    申请日:2021-12-20

    CPC classification number: G06F3/04166 G06F3/0446 H04N13/302 G06F3/04883

    Abstract: A detection device includes a plurality of first electrodes extending in a first direction, a plurality of second electrodes extending in a second direction that crosses the first direction, and a controller. The controller selects, as first detection electrodes, two of the first electrodes and two of the second electrodes positioned outermost in a predetermined detection region, selects, as first driving electrodes, at least one of first electrodes and the second electrodes not selected as the first detection electrodes, and detects a target in a non-contacting state from signals expressing capacitances acquired, by applying a voltage to the first driving electrodes, from the first detection electrodes.

    DISPLAY MODULE, DISPLAY APPARATUS, AND VEHICLE

    公开(公告)号:US20240045244A1

    公开(公告)日:2024-02-08

    申请号:US18483793

    申请日:2023-10-10

    Abstract: A display module, a display apparatus, and a vehicle are provided. The display module includes a backlight component, and a display component located at a side of the backlight component facing toward a light-emitting direction of the display module. The backlight component includes a first light guide structure, a light regulating structure, and a polymer liquid crystal film. The first polarizer is located at a side of the polymer liquid crystal film facing away from the backlight component. The polymer liquid crystal film is located at a side of the light regulating structure facing away from the first light guide plate and includes a polymer liquid crystal layer, and an electrode layer located at each of at least one side of the polymer liquid crystal layer. The display module has a sharing mode where the electrode layer is not energized and an anti-peeping mode where the electrode layer is energized.

    Device to enable touchless operation

    公开(公告)号:US11880527B2

    公开(公告)日:2024-01-23

    申请号:US18063320

    申请日:2022-12-08

    CPC classification number: G06F3/04164 G06F3/016 G06F2203/04108

    Abstract: A device to enable touchless operation of an instrument is disclosed. The device includes an actuator configured to vibrate the instrument, a controller configured to control the actuator, and an interval detector configured to detect an interval between the instrument and an object to operate the instrument. The controller is configured to start vibrating the actuator having been still after the interval detected by the interval detector reaches a first threshold, keep vibrating the actuator until the interval detected by the interval detector reaches a second threshold larger than the first threshold after the interval reaches the first threshold, and stop vibrating the actuator after the interval detected by the interval detector reaches the second threshold.

    DISPLAY PANEL AND DISPLAY DEVICE
    39.
    发明公开

    公开(公告)号:US20230422549A1

    公开(公告)日:2023-12-28

    申请号:US18466313

    申请日:2023-09-13

    CPC classification number: H10K50/858 H10K59/126 G06V40/1318

    Abstract: A display panel includes a substrate; an array layer on the substrate; a display layer located on a side of the array layer away from the substrate, where the display layer includes a plurality of light-emitting devices; an optical layer located on a side of the display layer away from the array layer, wherein the optical layer includes a first optical structure, and at least a portion of the first optical structure is arranged corresponding to intervals between the plurality of light-emitting devices; and a light-shielding member located on a side of the optical layer facing the substrate, where the light-shielding member includes a light pass area, and the light pass area and the first optical structure overlap each other.

    PIXEL CIRCUIT, DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20230419885A1

    公开(公告)日:2023-12-28

    申请号:US18364048

    申请日:2023-08-02

    Abstract: A pixel circuit, a display panel and a display device. The pixel circuit includes drive transistor, storage capacitor, compensation circuit, and voltage controller. The drive transistor has a gate electrode connected to a first node and generates a drive current in a light-emitting phase of an operation cycle of the pixel circuit. The storage capacitor has a first plate connected to the first node and a second plate connected to a second node and stores a data voltage inputted to the gate electrode of the drive transistor. The compensation circuit has an output terminal connected to the second node and a first input terminal receiving a first power supply voltage and compensates a deviation of the first power supply voltage affecting the drive current. The voltage controller is connected to the second node and controls a fluctuation of a voltage of the second node prior to the light-emitting phase.

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