OPTICAL FILM, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE

    公开(公告)号:US20230288623A1

    公开(公告)日:2023-09-14

    申请号:US18307639

    申请日:2023-04-26

    IPC分类号: G02B5/30 H10K59/80

    摘要: Provided is an optical film and an optical laminate that achieve an image display device capable of an antireflection effect of external light and improvement of utilization efficiency of light emitted by a light emitting element when applied to a self-emission type image display device formed of an inorganic EL element, an organic EL element, or the like. The optical film includes a light absorption anisotropic film consisting of a cured substance of a liquid crystal composition that contains a polymerizable liquid crystal compound and a dichroic coloring agent compound, in which the light absorption anisotropic film has, in the same film surface, regions A and B where an inclination of an absorption axis with respect to a film surface is θA and θB, respectively, and θA and θB satisfy relationships of Expressions (1) |θA−θB|≥10° and (2) 0°≤θB≤5°.

    METHOD FOR PRODUCING A PHASE DIFFERENCE FILM
    58.
    发明公开

    公开(公告)号:US20230241829A1

    公开(公告)日:2023-08-03

    申请号:US18171661

    申请日:2023-02-21

    申请人: ZEON CORPORATION

    摘要: A method for producing a phase difference film is provided. The phase difference film includes an orientation layer formed of a resin C having a negative intrinsic birefringence value. The resin C contains a block copolymer having a block (A) including as a main component a polymerization unit A having a negative intrinsic birefringence value and a block (B) including as a main component a polymerization unit B, and a weight fraction of the block (A) therein being 50% by weight or more and 90% by weight or less. The phase difference film has an NZ factor of greater than 0 and smaller than 1. The method comprising: forming a single layer film of the resin C; and causing phase separation of the resin C in the film, which includes a step of applying to the film a stress along a thickness direction thereof.

    FOCAL POLARIZATION BEAM DISPLACER
    59.
    发明公开

    公开(公告)号:US20230236348A1

    公开(公告)日:2023-07-27

    申请号:US17648634

    申请日:2022-01-21

    发明人: Roman BRUCK

    摘要: Embodiments herein describe a focal polarization displacer with a birefringent crystal disposed within the focal region of a lens. The birefringent crystal separates optical signals into at least two separate signals based on having different polarization states and an optical axis of the birefringent crystal is set so that focal points of the two separate signals are at an output surface of the polarization displacer where the two separate signals are output from the polarization displacer. This output surface can be a surface of the birefringent crystal or a surface of additional layer coupled to the crystal such as a polarization rotator or dielectric layer.