Electro-optical modulator

Details Electro-optical modulator Electro-optical modulator

1978-10-27

1980-07-29

Bauer, Edward S.

Compositions

Radioactive compositions

Nuclear reactor fuel

350330, 252299, G02F 113

Patent

active

042148197

ABSTRACT:
The optically active medium of an electro-optical cell sandwiched between a pair of crossed polarizers is a thin layer of liquid crystal with a positive dielectric anisotropy and a negative anisotropy of the diamagnetic susceptibility. The medium is positioned between two planar transparent electrodes across which a potential difference establishes, in the liquid crystal layer, an electric field perpendicular to the electrode layers. A magnet is provided for establishing in the medium a magnetic field that has a predetermined orientation relative to the electric field. When both fields are parallel, the threshold voltage of the cell is increased. The presence of such a magnetic field, when the electric field is switched off, reduces the turn-off time of the cell. When the fields are perpendicular to each other, the color of the display can be controlled in accordance with the magnitude of the magnetic field.

REFERENCES:
patent: 3364433 (1968-01-01), Freund et al.
patent: 4066334 (1978-01-01), Fray et al.

Affiliated with

Also associated with

Rating

Electro-optical modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-optical modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-optical modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-902232