18331807. OPTICAL FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE simplified abstract (FUJIFILM Corporation)
Contents
OPTICAL FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE
Organization Name
Inventor(s)
Wataru Hoshino of Kanagawa (JP)
Shinichi Yoshinari of Kanagawa (JP)
Hiroshi Matsuyama of Kanagawa (JP)
OPTICAL FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18331807 titled 'OPTICAL FILM, VIEWING ANGLE CONTROL SYSTEM, AND IMAGE DISPLAY DEVICE
Simplified Explanation
The present invention is a viewing angle control system and display device that improves image visibility and reduces glare on window glass. It also introduces an optical film with specific properties.
- The optical film includes a light absorption anisotropic layer made of a liquid crystal composition.
- The liquid crystal composition contains a thermotropic liquid crystal compound, a dichroic substance, and an interface improver.
- The dichroic substance makes up at least 10.0% of the total mass of the solid content of the liquid crystal composition.
- The angle between the transmittance central axis of the light absorption anisotropic layer and the surface normal direction of the optical film is between 5° and 45°.
Potential applications of this technology:
- Display devices with improved image visibility and reduced glare on window glass.
- Automotive displays that provide clear and bright images even in direct sunlight.
- Outdoor digital signage that remains visible from various viewing angles.
Problems solved by this technology:
- Poor image visibility and glare on window glass can make it difficult to see displayed content.
- Traditional optical films may not effectively control the viewing angle or reduce reflected glare.
Benefits of this technology:
- Provides a bright and easy-to-see image in the desired direction.
- Shields light from the image in directions other than the desired direction.
- Limits reflected glare on window glass, improving visibility.
- Offers a versatile solution for various display applications.
Original Abstract Submitted
The present invention provides a viewing angle control system and a display device that are capable of providing a bright and easy-to-see image in a desired direction, shielding light from the image in a direction other than the desired direction, and limiting reflected glare on window glass, and an optical film therefor. The optical film of the present invention includes a light absorption anisotropic layer formed of a liquid crystal composition containing a thermotropic liquid crystal compound, a dichroic substance, and an interface improver, in which a content of the dichroic substance is 10.0% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the optical film is 5° or greater and less than 45°.
