Variable focal length lens panel and fabricating the same
US6191881A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jun 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There are provided a circular transparent electrode provided on a first substrate at the center thereof, a plurality of annular transparent electrodes which are disposed outside the circular transparent electrode concentrically and narrowed in width and interval as they are directed outward, extension electrodes which extend crosswise outward from the center to an external terminal electrode, and an alignment layer on these electrodes. There are also provided a transparent electrode on an entire surface of a second substrate, and an alignment layer on the transparent electrode, wherein the first and second alignment layers are subjected to a parallel aligning treatment. The first substrate and the second substrate are bonded to each other while keeping a given internal by gap members disposed outside the annular transparent electrodes, and a nematic liquid crystal is sealed in a gap between the first substrate and the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.