Title :
Novel voltage controlled spatial modulation method for digital microshutter display with high performance
Author :
Lee, K.-H. ; Kim, D.-H. ; Chang, J.-H. ; Yoon, J.-B.
Author_Institution :
Div. of Electr. Eng., KAIST, Daejeon, South Korea
Abstract :
In this work, we have proposed a novel voltage controlled spatial modulation method for a digital microshutter display. A single pixel is composed of multiple sub-microshutters with the same characteristics. And the grayscale level of it is modulated by the number of actuated sub-microshutters controlled by applied voltage distribution in floating counter electrodes and hysteresis phenomenon in electrostatic microshutters. Through the proposed modulation method, the microshutter having low operation voltage under 20 V together with large deflection of quarter circle shape has been demonstrated.
Keywords :
electrostatic devices; hysteresis; voltage distribution; applied voltage distribution; digital microshutter display; electrostatic microshutters; floating counter electrodes; hysteresis phenomenon; voltage controlled spatial modulation method; Counting circuits; Digital modulation; Displays; Electrodes; Electrostatics; Gray-scale; Hysteresis; Low voltage; Shape; Voltage control; Digital microshutter; hysteresis of electrostatic actuation; spatial modulation; voltage distribution through floating electrode;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4244-4190-7
Electronic_ISBN :
978-1-4244-4193-8
DOI :
10.1109/SENSOR.2009.5285643
