Screen detection method, apparatus and device, computer program and readable medium

    公开(公告)号:US12225177B2

    公开(公告)日:2025-02-11

    申请号:US17765390

    申请日:2021-05-28

    Abstract: The present disclosure provides a screen detection method, an apparatus and a device, a computer program and a readable medium, and belongs to the technical field of screens. The method includes: receiving a cylindrical lens detection instruction for a target screen, wherein the cylindrical lens detection instruction at least includes target viewpoints; acquiring browsing images shot from the target screen under the target viewpoints in response to the detection instruction, wherein the target screen is a screen of which the light emission side is provided with cylindrical lenses; using the browsing images as viewpoint images under the condition that the browsing images include target contents; and outputting detection parameters of the cylindrical lenses on the target screen based on image parameters of the viewpoint images.

    Liquid crystal lens panel and display device

    公开(公告)号:US12117695B2

    公开(公告)日:2024-10-15

    申请号:US18273557

    申请日:2021-12-27

    CPC classification number: G02F1/133761 G02B30/22 G02F1/133526 G02F1/134309

    Abstract: The present invention provides a liquid crystal lens panel and a display device. The liquid crystal lens panel comprises a first substrate (10) and a second substrate (20) that are opposite to each other, and a liquid crystal layer (30) provided between the first substrate (10) and the second substrate (20); the first substrate (10) comprises a first structural layer (12) provided on a first base (11) and a first orientation layer (13) provided on the first structural layer (12); the second substrate (20) comprises a second structural layer (22) provided on a second base (21) and a second orientation layer (23) provided on the second structural layer (22); on a plane parallel to the liquid crystal lens panel, at least one of the first orientation layer (13) and the second orientation layer (23) comprises multiple orientation areas, orientation pretilt angles of at least two orientation areas are different.

    Liquid crystal lens and electronic device

    公开(公告)号:US12013608B2

    公开(公告)日:2024-06-18

    申请号:US18006983

    申请日:2022-02-28

    CPC classification number: G02F1/133526 G02F1/134336

    Abstract: Provided are a liquid crystal lens and an electronic device. The lens includes a first and a second substrate structure; and an intermediate layer. The second substrate structure includes a second substrate; at least one electrode structure, each electrode structure including N groups of second electrodes, each group of which including M second electrodes. Orthographic projections of i-th group of second electrodes is within that of i-th intermediate portion. Each intermediate portion includes a liquid crystal layer, and j-th intermediate portion includes at least one of a first to fourth barrier walls. The liquid crystal lens is configured such that i-th intermediate portion constitutes a part of i-th stage Fresnel ring of a Fresnel zone plate, and optical paths of portions of i-th intermediate portion gradually decrease along the first direction, in a case where a predetermined voltage is between N groups of second electrodes and the first electrode.

    Display device and display method
    29.
    发明授权

    公开(公告)号:US11016241B2

    公开(公告)日:2021-05-25

    申请号:US16633343

    申请日:2018-11-15

    Abstract: A display device includes: an optical waveguide layer having a light-entering region and a light-exiting region; an optical element correspondingly arranged in the light-entering region and configured to emit at least two types of light beams having different image information, to transmit the at least two types of light beams to the light-entering region of the optical waveguide layer; at least two coupling gratings arranged on transmission paths of the at least two types of light beams in the optical waveguide layer, and configured to change a direction of each of the at least two types of light beams in the optical waveguide layer, to enable light beams in the at least two types of light beams in the optical waveguide layer to be transmitted to the light-exiting region, exit from the light-exiting region and be converged at at least one view point.

    Spectroscope
    30.
    发明授权

    公开(公告)号:US11002602B2

    公开(公告)日:2021-05-11

    申请号:US16825355

    申请日:2020-03-20

    Abstract: A spectroscope includes a first substrate and a second substrate opposite to each other; a light introducing assembly on a side of the first substrate facing away from the second substrate; a temperature adjusting assembly between the first substrate and the second substrate; a liquid crystal dimming assembly between the first substrate and the second substrate, wherein the temperature adjusting assembly is configured to adjust a temperature of the liquid crystal dimming assembly, so as to adjust spectrum of light passing through the liquid crystal dimming assembly; a spectroscopic grating on the first substrate; a reflector on the second substrate and configured to reflect incident light introduced by the light introducing assembly to the spectroscopic grating; and a plurality of sensors configured to receive the incident light after being subjected a light splitting by the spectroscopic grating. A wavelength of the incident light received by each sensor is different.

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