Fujifilm corporation (20240302698). TRANSMISSIVE LIQUID CRYSTAL DIFFRACTION ELEMENT simplified abstract
Contents
TRANSMISSIVE LIQUID CRYSTAL DIFFRACTION ELEMENT
Organization Name
Inventor(s)
Kazuya Hisanaga of Minamiashigara-shi (JP)
Yukito Saitoh of Minamiashigara-shi (JP)
Yujiro Yanai of Minamiashigara-shi (JP)
TRANSMISSIVE LIQUID CRYSTAL DIFFRACTION ELEMENT - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240302698 titled 'TRANSMISSIVE LIQUID CRYSTAL DIFFRACTION ELEMENT
Simplified Explanation: The patent application describes a transmissive liquid crystal diffraction element that can diffract different polarized light components in the same direction while maintaining a polarization state during incidence.
- First and second optically-anisotropic layers with liquid crystal alignment patterns that continuously rotate in at least one in-plane direction.
- Two retardation layers between the optically-anisotropic layers, with opposite rotation directions of the optical axis.
- The retardation layers are positive c-plates or o-plates, with the positive c-plate satisfying a specific expression.
Key Features and Innovation:
- Liquid crystal diffraction element for diffracting polarized light components in the same direction.
- Optically-anisotropic layers with continuously rotating liquid crystal alignment patterns.
- Retardation layers with opposite rotation directions of the optical axis.
- Positive c-plates or o-plates used as retardation layers.
Potential Applications:
- Optical devices
- Display technologies
- Polarization control systems
Problems Solved:
- Efficient diffraction of polarized light components
- Maintaining polarization state during light incidence
Benefits:
- Enhanced optical performance
- Improved display quality
- Precise control over polarization
Commercial Applications: Potential commercial applications include:
- High-resolution displays
- Optical communication systems
- Polarization-sensitive imaging devices
Questions about Liquid Crystal Diffraction Element: 1. How does the continuously rotating liquid crystal alignment pattern contribute to the diffraction of polarized light components? 2. What are the specific advantages of using positive c-plates or o-plates as retardation layers in this technology?
Original Abstract Submitted
provided is a transmissive liquid crystal diffraction element that can diffract different polarized light components in the same direction and can maintain a polarization state during incidence. the transmissive liquid crystal diffraction element includes: first and second optically-anisotropic layers each of which has a liquid crystal alignment pattern in which an orientation of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction; and two retardation layers that are disposed on a side of the second optically-anisotropic layer opposite to the first optically-anisotropic layer and between the first optically-anisotropic layer and the second optically-anisotropic layer, respectively, in which a rotation direction of the optical axis in the liquid crystal alignment pattern of the first optically-anisotropic layer is opposite to that of the second optically-anisotropic layer, a single period of the liquid crystal alignment pattern of the first optically-anisotropic layer is the same as that of the second optically-anisotropic layer, the retardation layer is a positive c-plate or an o-plate, and the positive c-plate satisfies expression (1).
