Development of an Electrophoretic Image Display
Quarterly technical rept. no. 5, 1 Aug-31 Oct 1980
PHILIPS LABS BRIARCLIFF MANOR NY
Pagination or Media Count:
The purpose of this work is to develop a 350 x 600 element X-Y addressed electrophoretic image display EPID. The ion-beam milling process now routinely removes all of the Mylar from the potential wells without destroying the underlying electrode. A number of devices having the 512 character format were fabricated and tested. Interelectrode shorts were found in these displays, and measures are being taken to determine and eliminate their causes. Several of the devices were fabricated with sputtered In2O3 SnO2 ITO grid electrodes, these clearly demonstrated the improved contrast expected by replacing the aluminum grid electrode with an ITO electrode. An evaporation system was set up to deposit In2O3. This process is more reproducible than sputtering and gives more transparent films of higher conductivity. Construction of the driver and the interconnection system is complete. The software for the driver has been written. Debugging of the driver and software awaits the availability of a display substantially free of shorts.
- Physical Chemistry
- Electrical and Electronic Equipment
- Computer Programming and Software