Programmable window : a large-scale transparent electronic display using SPD film

This research demonstrates that Suspended Particle Device (SPD) film is a viable option for the development of large-scale transparent display systems. The thesis analyzes the SPD film from an architectural display application standpoint, observing its steady-state and dynamic electro-optical response and evaluating different strategies to address, drive and control the independent transparency levels of an SPD pixel array. Although passive matrix multiplexing can also be implemented, it is determined that a directly addressed, multi-line strobing technique is best suited given the constraints of AC drive, power consumption and load bi-directional conductivity of the currently available film. With regards to transparency control, a high-voltage pulse width modulation strategy proves optimal in terms of functionality and component overhead. A prototype display system that incorporates these findings is built, illustrating the key electrical considerations, design features and versatility that ought to be part of future implementations of the system.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2004

Author dc:creator

• Ramos, Martin (Ramos Rizo-Patron)

Advisor dc:contributor.advisor

• Carlos F. Ratti.

• Electrical Engineering and Computer Science.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/33340

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/33340