A Custom Reflectance Goniometer and its Usage in the Development of Gain Reflectors for Electronic-Paper Applications

A modified goniometer has been successfully developed and used to characterize novel electronic-paper (e-paper) devices. A power meter, in conjunction with a DC servo motor, was controlled within a Labview program to automate the collection of data reflected light off of e-paper substrates. Next, aluminum gain reflectors were fabricated and tested. Master molds were used to create daughters which were in turn laminated in Per-MX onto glass slides and then coated in aluminum. These substrates′ reflection profiles were characterized by the goniometer and ranked from most diffuse to least. Finally, a pixel display was developed on top of the most diffuse aluminum patterns and also tested on the goniometer. A Suspended Particle Display (SPD) liquid was diluted to an ideal concentration then placed between the aluminum pattern and a top transparent electrode. Test pixels were fabricated and shown to perform well with the reflector. Future work with the SPD will be in creating display devices similar to E-ink while the goniometer will remain a useful characterization tool for all types of e-paper devices.

Name thesis:degree_name

MS

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Engineering and Applied Science: Electrical Engineering

Grantor dc:publisher

University of Cincinnati

Year dc:date

2012

Author dc:creator

• Skinner, Matthew T.

Contributors dc:contributor

• Heikenfeld, Jason

• Electrical Engineering
• goniometer
• e-paper
• gain reflectors
• suspended particle display
• electrowetting
• heikenfeld

Statement dc:rights

• unrestricted
• This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.

Language dc:language

English

Repository record dc:identifier

http://rave.ohiolink.edu/etdc/view?acc_num=ucin1352402874

OAI identifier oai:identifier

oai:etd.ohiolink.edu:ucin1352402874