Low voltage vertical flaps arrays as optical modulating elements for reflective display and switchable gratings
A novel technology is presented for arrays of vertical flaps as optically modulating elements which are actuated electrostatically to horizontal position at low voltages of 30-50V. One application is a reflective display exhibiting a contrast ratio of 1:95. We will also show a) shutters for transmissive devices in an array configuration and b) switchable gratings. A large variety of flap geometries are fabricated such as flat reflective, grating, lens or grid shape. Poly-Si refill of thin high aspect-ratio trenches followed of dry etching of the surrounding material is used to fabricate the flaps suspended by torsion beams.
WOS:000302688500015
2012
978-0-8194-8895-4
Proceedings of SPIE; 8252
82520J
NON-REVIEWED
Event name | Event place | Event date |
San Francisco, CA | Jan 24-25, 2012 | |