research frontiers inc., the developers and licensors of spd-smartglass™, have built an infrastructure of over 40 licensees worldwide that collectively are capable of serving the growing global demand for smart glass products in automobiles, homes, buildings, aircraft, boats and display applications. in suspended particle devices (spds), a thin film laminate of rod-like nano-scale particles is suspended in a liquid and placed in between two pieces of glass or plastic, or attached to one layer. when no voltage is applied, the suspended particles are randomly organized, thus blocking and absorbing light. when voltage is applied, the suspended particles align and let light pass. varying the voltage of the film varies the orientation of the suspended particles, thereby regulating the tint of the glazing and the amount of light transmitted. spds can be manually or automatically "tuned"​ to precisely control the amount of light, glare and heat passing through, reducing the need for air condi