LED display screen
    2.
    发明授权

    公开(公告)号:US12142713B2

    公开(公告)日:2024-11-12

    申请号:US17280782

    申请日:2019-09-26

    Abstract: An LED display screen, comprising: an LED array, consisting of multiple LED light-emitting units and used for emitting a light; an optical diffusion film, provided at a light exit side of the LED array; a matrix shading frame, comprising multiple hollow shading gratings, the hollow shading gratings corresponding one-to-one to the LED light-emitting units; and a substrate, used for supporting the LED array and the matrix shading frame, where the light emitted by the LED light-emitting units, after running through the hollow shading gratings, is diffused to a viewer side via the optical diffusion film, and the LED light-emitting units emit the light towards the hollow shading gratings.

    Light-shielding frame and LED display device

    公开(公告)号:US12074265B2

    公开(公告)日:2024-08-27

    申请号:US17648663

    申请日:2022-01-21

    CPC classification number: H01L33/58 H01L25/0753

    Abstract: A light-shielding frame and an LED display device are provided and respectively has excellent light-shielding performance and optical display performance. The light-shielding frame includes a retaining wall and hollow grids; the retaining wall includes first and second retaining walls connected in a stacked manner along a light-emitting direction of the grids, and each grid includes first and second grid portions. The thickness of the first retaining wall decreases from one end thereof close to the second retaining wall to the other end thereof distant from the second retaining wall to form a first draft angle; the thickness of the second retaining wall decreases from one end thereof close to the first retaining wall to the other end thereof distant from the first retaining wall to form a second draft angle; the first retaining wall has the same thickness as the second retaining wall in the connection position thereof.

    Head-up display screen, head-up display assembly, and vehicle

    公开(公告)号:US12130429B2

    公开(公告)日:2024-10-29

    申请号:US17641618

    申请日:2020-08-31

    CPC classification number: G02B27/0101 B60K35/00 B60K2360/23 G02B2027/0196

    Abstract: A head-up display screen, a head-up display assembly, and a vehicle are provided. The head-up display screen is attached to an inner side of an attachment surface of a windshield and configured to reflect image light emitted towards the windshield. The head-up display screen includes a functional layer, a reflective layer, and a protective layer that are sequentially arranged in a direction from the windshield to a driving position. The functional layer includes prism microstructures protruding from the inner side of the attachment surface of the windshield. The reflective layer is at least attached to lower inclined surfaces of the prism microstructures and is configured to reflect the image light towards the driving position. The protective layer covers the reflective layer and the functional layer.

    Wavelength conversion apparatus, light source system and display device

    公开(公告)号:US12038679B2

    公开(公告)日:2024-07-16

    申请号:US17428957

    申请日:2020-03-18

    Abstract: Provided are a wavelength conversion apparatus, a light source system including the same, and a display device including the light source system. The wavelength conversion apparatus includes an angle deflection region and a wavelength conversion region for converting incident second light into excited light and then emitting same. The angle deflection region includes deflection units, each of which includes a light emergent face for emitting first light. A first included angle is formed between the light emergent face and a reference plane. First included angles between light emergent faces of at least two deflection units and the reference plane are not equal. The deflection units are located on a light path of the first light in a time sequence, so as to change an emergent angle of the first light in the time sequence, such that the first light is successively scanned at a preset position to form virtual pixels.

    Projection screen
    7.
    发明授权

    公开(公告)号:US11892765B2

    公开(公告)日:2024-02-06

    申请号:US17595800

    申请日:2020-05-18

    Abstract: A projection screen includes a substrate with a first substrate surface. The first substrate surface includes a first region and a second region adjacent to the first region. Multiple first wire grid bodies extending in a first direction are provided in the first region. Multiple second wire grid bodies extending in the first direction are provided in the second region. Each first wire grid body includes a first contact surface connected to the substrate and a first surface, and a first angle is formed therebetween. The first angles gradually decrease in a direction from the first region to the second region. Each second wire grid body includes a second contact surface connected to the substrate and a third surface, and a third angle is formed therebetween. The third angles gradually increase in a direction from the first region to the second region.

    LED DISPLAY SCREEN
    8.
    发明申请

    公开(公告)号:US20220005988A1

    公开(公告)日:2022-01-06

    申请号:US17280782

    申请日:2019-09-26

    Abstract: An LED display screen, comprising: an LED array, consisting of multiple LED light-emitting units and used for emitting a light; an optical diffusion film, provided at a light exit side of the LED array; a matrix shading frame, comprising multiple hollow shading gratings, the hollow shading gratings corresponding one-to-one to the LED light-emitting units; and a substrate, used for supporting the LED array and the matrix shading frame, where the light emitted by the LED light-emitting units, after running through the hollow shading gratings, is diffused to a viewer side via the optical diffusion film, and the LED light-emitting units emit the light towards the hollow shading gratings. The LED display screen prevents external ambient lights from being shone to optical surfaces of the LED light-emitting units and being reflected thereby, thus increasing the contrast of the LED display screen.

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