18514471. OPTICAL LAMINATE, LAMINATED OPTICAL FILM, OPTICAL ARTICLE, AND VIRTUAL REALITY DISPLAY DEVICE simplified abstract (FUJIFILM CORPORATION)
Contents
OPTICAL LAMINATE, LAMINATED OPTICAL FILM, OPTICAL ARTICLE, AND VIRTUAL REALITY DISPLAY DEVICE
Organization Name
Inventor(s)
Ryuji Saneto of Minamiashigara-shi (JP)
Yujiro Yanai of Minamiashigara-shi (JP)
Yohei Hamachi of Minamiashigara-shi (JP)
Akira Maruyama of Minamiashigara-shi (JP)
OPTICAL LAMINATE, LAMINATED OPTICAL FILM, OPTICAL ARTICLE, AND VIRTUAL REALITY DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18514471 titled 'OPTICAL LAMINATE, LAMINATED OPTICAL FILM, OPTICAL ARTICLE, AND VIRTUAL REALITY DISPLAY DEVICE
Simplified Explanation
The present invention relates to an optical laminate that can be used for a reflective circular polarizer with minimal occurrence of a ghost when used in devices such as virtual reality display devices or electronic finders. The laminate includes two or more laminated reflective layers, each containing specific cholesteric liquid crystal layers formed of different liquid crystal compounds.
- Explanation of the patent/innovation:
- The optical laminate includes multiple laminated reflective layers with specific cholesteric liquid crystal layers. - One reflective layer includes rod-like liquid crystal compounds, while the other includes disk-like liquid crystal compounds. - The laminate is designed to reduce ghosting effects in reflective circular polarizers used in various optical devices.
- Potential applications of this technology:
- Virtual reality display devices - Electronic finders - Heads-up displays - Camera viewfinders
- Problems solved by this technology:
- Minimizing ghosting effects in reflective circular polarizers - Improving image quality in optical devices - Enhancing user experience in virtual reality and augmented reality applications
- Benefits of this technology:
- Reduced ghosting for clearer images - Enhanced visibility and contrast in displays - Improved performance in optical devices
- Potential commercial applications of this technology:
- Consumer electronics industry - Display and imaging technology companies - Virtual reality and augmented reality device manufacturers
- Possible prior art:
- Existing reflective circular polarizers with single reflective layers - Traditional optical films without specific cholesteric liquid crystal layer configurations
Questions:
1. How does the optical laminate reduce ghosting effects in reflective circular polarizers? 2. What are the specific characteristics of the rod-like and disk-like liquid crystal compounds used in the reflective layers?
Original Abstract Submitted
An object of present invention is to provide an optical laminate that can be used for a reflective circular polarizer with little occurrence of a ghost in a case of being used in a virtual reality display device, an electronic finder, or the like; a laminated optical film including the reflective circular polarizer; an optical article including the optical laminate; and a virtual reality display device including the optical article. The optical laminate of the present invention includes two or more laminated reflective layers, in which the laminated reflective layer includes one reflective layer A that includes at least one or more cholesteric liquid crystal layers formed of a first liquid crystal compound which substantially consists of a rod-like liquid crystal compound and that does not include a cholesteric liquid crystal layer formed of a second liquid crystal compound which substantially consists of a disk-like liquid crystal compound, and one reflective layer B that includes at least one or more cholesteric liquid crystal layers formed of the second liquid crystal compound which substantially consists of a disk-like liquid crystal compound and that does not include a cholesteric liquid crystal layer formed of the first liquid crystal compound which substantially consists of a rod-like liquid crystal compound, and predetermined requirements are satisfied.
