Development of an Electrophoretic Image Display
Quarterly technical rept. 1 Feb-30 Apr 1980
PHILIPS LABS BRIARCLIFF MANOR NY
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The purpose of this work is to develop a 350 x 600 element X-Y addressed ElectroPhoretic Image Display EPID. Development of the fabrication techniques for this display continues. Near-perfect seals between the substrate and grid dielectric were obtained. Ion-beam milling of Mylar in 70 oxygen 30 argon has eliminated operational difficulties encountered with pure oxygen. No change in either the absolute or differential milling rates was observed as a result of the addition of the argon to the oxygen. Several tests have confirmed the compatibility between the materials used in fabricating the device and the components of the electrophoretic suspension. Digitization and ordering of the photolithographic masks for the 512 character display is complete. Design of the display electronics and packaging are in progress. A microprocessor interfaced to the IEEE-488 bus and an ASCII-to-5x7 character generator will provide the necessary signals to the integrated row and column drivers. The display will be mounted, using conductive elastomer interconnections, to a printed circuit board which will provide sockets for connection of the cables form the electronics package. This system will accept ASCII information from a computer connected to an IEEE-488 bus and display the printable information on the EPID as 16 lines of 32 characters each.
- Electrical and Electronic Equipment
- Test Facilities, Equipment and Methods