US Patent Application 18447862. OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE simplified abstract
Contents
OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE
Organization Name
Inventor(s)
Wataru Hoshino of Kanagawa (JP)
Shinya Watanabe of Kanagawa (JP)
Naoya Nishimura of Kanagawa (JP)
OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18447862 titled 'OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, AND DISPLAY DEVICE
Simplified Explanation
The patent application describes an optically anisotropic film that has high contrast and excellent light fastness.
- The film contains a liquid crystal compound and a dichroic substance.
- The liquid crystal compound is vertically aligned, while the dichroic substance forms an arrangement structure.
- When observed under a scanning transmission electron microscope, the arrangement structure has a major axis length (L) and a minor axis length (D).
- At least 16 arrangement structures with L≥30 nm are observed per 40 μm.
- The optically anisotropic film can be used in optical films and display devices.
Original Abstract Submitted
Provided is an optically anisotropic film, an optical film, and a display device, which have a high contrast and excellent light fastness. The optically anisotropic film includes a liquid crystal compound and a dichroic substance, in which the liquid crystal compound is vertically aligned, the dichroic substance forms an arrangement structure, and in a case where, in a cross section observed with a scanning transmission electron microscope, a length of a major axis of the arrangement structure is defined as L, and a length of a minor axis of the arrangement structure is defined as D, 16 or more arrangement structures satisfying L≥30 nm are observed per 40 μm.
