Liquid crystal shutter and liquid crystal shutter eyeglass
US8619204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13706
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal shutter that realizes a high speed response and that solves a problem in which light leakage cannot be alleviated is provided. An alignment film coated on substrate 5a adjacent to another liquid crystal device of substrates (5a) and (5b) of each of liquid crystal devices (2a, 2b) is horizontal alignment film (7a) and alignment film coated on the other substrate (5b) is vertical alignment film (7b). A alignment treatment is performed on the horizontal alignment film coated on substrate (5a) of liquid crystal device (2b) having a polarizer (3) in a direction parallel to a light transmission axis of analyzer (4) and an alignment treatment is performed on the horizontal alignment film coated on substrate (5a) of liquid crystal device (2a) having analyzer (4) in a direction parallel to the light transmission axis of polarizer (4). Liquid crystal materials (6) of liquid crystal devices (2a, 2b) have a positive dielectric anisotropy and have twisting directions that is the reverse of each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.