Recent improvements in the synthesis procedure for colloidal suspensions have led to reproducible suspensions and a reduced production time.
In the past year, the previous disadvantages of high drive voltage, slow response at low temperatures and restricted operating lifetime have been substantially reduced. Present displays operate at 18 volts (CMOS compatible) with response times substantially less than 500 ms at -30°C and also have improved lifetimes under both storage and operating conditions.
New test methods have been developed to assist the understanding of the degradation process under operating conditions.
The latest technical data for colloidal displays are presented.