Low reflectivity LCD with COP retarder and COP matching RM

    公开(公告)号:US10802343B2

    公开(公告)日:2020-10-13

    申请号:US15918093

    申请日:2018-03-12

    Abstract: A liquid crystal device (LCD) is configured for minimizing unwanted internal ambient light reflections. The LCD includes a plurality of layers, the layers comprising from a viewing side: a first linear polariser; an external retarder that is made of a cyclic olefin polymer (COP) material or a cyclic olefin copolymer (COC) material; a colour filter substrate; a colour filter layer; an internal reactive mesogen (RM) retarder alignment layer; an internal reactive mesogen (RM) retarder; a liquid crystal (LC) layer; and a second linear polarizer. The external retarder and the internal RM retarder are configured such that the optical properties (for example light polarization control function) of the external retarder and the internal retarder are matched to negate each other for light passing through the external retarder and the internal RM retarder. The LCD simultaneously maintains high image quality in both high and low ambient lighting conditions.

    Scanning antenna and method for manufacturing same

    公开(公告)号:US10756409B2

    公开(公告)日:2020-08-25

    申请号:US15767333

    申请日:2016-10-06

    Abstract: A scanning antenna including: a TFT substrate including a first dielectric substrate, a TFT, a gate bus line, a source bus line, and a patch electrode; a slot substrate including a second dielectric substrate and a slot electrode formed on a first main surface of the second dielectric substrate; a liquid crystal layer provided between the TFT substrate and the slot substrate; and a reflective conductive plate. The scanning antenna has a tiling structure in which a plurality of scanning antenna portions are bonded together, and each of the plurality of scanning antenna portions includes a TFT substrate portion and a slot substrate portion. The plurality of scanning portions include: a scanning antenna portion including, on a side to be bonded with an adjacent scanning antenna portion, a side which the TFT substrate portion protrudes beyond the slot substrate portion, and a scanning antenna portion including, on a side to be bonded with an adjacent scanning antenna portion, a side in which the slot substrate portion protrudes beyond the TFT substrate portion.

    Liquid crystal module
    55.
    发明授权

    公开(公告)号:US10656467B2

    公开(公告)日:2020-05-19

    申请号:US16147386

    申请日:2018-09-28

    Abstract: Provided is a liquid crystal module being excellent in durability and manufacturing cost and exhibiting reduced variations in peak luminance that are caused depending on an azimuth angle during black display when the polar angle is large. The liquid crystal module includes: a liquid crystal panel including a first polarizer, a first substrate, a liquid crystal layer, an in-cell retardation layer (λ/4 plate of nx>ny=nz), a second substrate, an out-cell retardation layer (λ/4 plate of nx>ny≥nz), and a second polarizer, from a back side toward an observation side; and a backlight. The backlight includes a first prism sheet including a first ridge line, and a second prism sheet provided on a back side from the first prism sheet and including a second ridge line orthogonal to the first ridge line. The first ridge line is parallel to an azimuth at which the liquid crystal panel has a maximized transmittance in an oblique direction during black display.

    Liquid crystal display device
    57.
    发明授权

    公开(公告)号:US10551678B2

    公开(公告)日:2020-02-04

    申请号:US16141858

    申请日:2018-09-25

    Abstract: A liquid crystal display device includes: a first polarizing plate; a first substrate; a first vertical alignment film; a liquid crystal layer; a second vertical alignment film; a second substrate; and a second polarizing plate, wherein a first retardation layer is disposed between the first polarizing plate and the liquid crystal layer and includes first and second areas having mutually different in-plane phase differences, a second retardation layer is disposed between the second polarizing plate and the liquid crystal layer and includes third and fourth areas having mutually different in-plane phase differences, the first and third areas overlap boundaries between at least four domains of liquid crystal molecules in a pixel region and have an in-plane phase difference in a predetermined range, and in-plane slow axes of the first and third areas and absorption axes of the first and second polarizing plates each have a predetermined azimuth.

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