Light-absorbing anisotropic film, optical laminate, and image display device

    公开(公告)号:US11407944B2

    公开(公告)日:2022-08-09

    申请号:US16903802

    申请日:2020-06-17

    摘要: An object of the present invention is to provide a light-absorbing anisotropic film having an excellent degree of alignment of a dichroic azo coloring agent; an optical laminate including the same; and an image display device using the same. The light-absorbing anisotropic film according to an embodiment of the present invention is a light-absorbing anisotropic film which is formed of a liquid crystal composition containing a dichroic azo coloring agent compound, a liquid crystalline compound, and a compound represented by Formula (1) and has a front transmittance of 60% or less, and in which a content mass ratio of the dichroic azo coloring agent compound to the liquid crystalline compound is 5% to 35% by mass.

    Method for manufacturing optical laminate, optical laminate, and image display device

    公开(公告)号:US11378838B2

    公开(公告)日:2022-07-05

    申请号:US16911832

    申请日:2020-06-25

    摘要: An object of the present invention is to provide a method for manufacturing an optical laminate in which an alignment defect is less likely to occur in a light-absorbing anisotropic layer even in a case where a surface of a photo-alignment layer is rubbed; an optical laminate; and an image display device. The method for manufacturing an optical laminate according to an embodiment of the present invention is a method for manufacturing an optical laminate in which an optical laminate including a photo-alignment layer and a light-absorbing anisotropic layer and having a front transmittance of 60% or less is produced and which includes a photo-alignment layer formation step of forming a photo-alignment layer on a polymer film, and a light-absorbing anisotropic layer formation step of applying a liquid crystal composition containing a dichroic substance and a high-molecular liquid crystalline compound onto the photo-alignment layer to form a light-absorbing anisotropic layer.

    Method of manufacturing antireflection film, antireflection film, polarizing plate, cover glass, and image display device

    公开(公告)号:US10829645B2

    公开(公告)日:2020-11-10

    申请号:US16150768

    申请日:2018-10-03

    摘要: A method of manufacturing an antireflection film including, in the following order, a substrate, a hard coat layer and an antireflection layer as defined herein includes: applying a hard coat layer forming composition including a crosslinking compound having a weight-average molecular weight equal to or greater than 600, a compound having a molecular weight smaller than 600 and having a photopolymerizable group and a photopolymerization initiator, onto the substrate as defined herein; semi-curing the hard coat layer forming film; applying an antireflection layer forming composition including particles, a binder resin forming compound and a solvent, onto the semi-cured hard coat layer forming film as defined herein; causing a part of the binder resin forming compound to permeate the hard coat layer forming film as defined herein; and completely curing the hard coat layer forming film and the antireflection layer forming film as defined herein.

    Laminate and image display device

    公开(公告)号:US12103292B2

    公开(公告)日:2024-10-01

    申请号:US17368034

    申请日:2021-07-06

    摘要: The present invention provides: a laminate which has excellent moisture-heat resistance and includes a light-absorbing anisotropic layer sandwiched between pressure sensitive adhesive layers; and an image display device using the same. The laminate includes a pressure sensitive adhesive layer, a light-absorbing anisotropic layer, and a pressure sensitive adhesive layer in this order, in which the light-absorbing anisotropic layer contains an organic dichroic substance, a thickness of the light-absorbing anisotropic layer is 5 μm or less, the pressure sensitive adhesive layer and the pressure sensitive adhesive layer are each a pressure sensitive adhesive layer at a closest position as viewed from the light-absorbing anisotropic layer in the laminate, and H represented by Expression (I) is 10.0 or less. H=(thickness of pressure sensitive adhesive layer+thickness of pressure sensitive adhesive layer)/total thickness of layers on inner side than pressure sensitive adhesive layer and pressure sensitive adhesive layer.

    Optical laminate film and organic electroluminescent display device

    公开(公告)号:US11029557B2

    公开(公告)日:2021-06-08

    申请号:US16866522

    申请日:2020-05-04

    摘要: An object of the present invention is to provide is an optical laminate film exhibiting excellent reflection tint and an organic EL display device using this optical laminate film and exhibiting excellent reflection tint when turned off. The object is achieved by providing an optical laminate film including a polarizer, a phase difference layer, and a circularly polarized light separating layer in this order, in which an in-plane retardation Re(550) of the phase difference layer is 120 to 160 nm, the polarizer and the phase difference layer are arranged to form an angle of 45°±10°, the circularly polarized light separating layer is a cholesteric liquid crystal layer formed by fixing a cholesteric liquid crystalline phase and having a liquid crystalline molecule as a main component, and Re(550) is 0.5 to 3.0 nm, and an optical laminate film in which a circularly polarized light separating layer has an in-plane phase difference and an angle formed between a slow axis of a phase difference layer and a slow axis of the circularly polarized light separating layer is −30° to 30°.

    Viewing angle control system and image display device

    公开(公告)号:US12066700B2

    公开(公告)日:2024-08-20

    申请号:US18052438

    申请日:2022-11-03

    摘要: Provided is a viewing angle control system and an image display device which are capable of controlling the viewing angle of a display screen in a longitudinal direction and improving the visibility in a specific lateral direction. The viewing angle control system includes a polarizer, and a light absorption anisotropic layer, in which the polarizer has an in-plane absorption axis in a film, an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal line of the film is in a range of 0.1° to 45°, and an angle φ between a direction in which the transmittance central axis of the light absorption anisotropic layer is orthographically projected onto the film surface and the absorption axis of the polarizer is 0° or greater and less than 85°, greater than 95° and less than 265°, or greater than 275° and 360° or less.