Electrophoretic display

Details Electrophoretic display Electrophoretic display

1980-01-24

1981-11-03

Prescott, Arthur C.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

204180R, 350355, 350362, 355 3P, 430 31, C25D 112, B03C 500

Patent

active

042984483

ABSTRACT:
An electrophoretic display including a cell having two plates spaced apart and provided at least regionally with electrodes, where at least one plate and an associated electrode facing the observer are transparent. The cell contains a suspension consisting of an inert dielectric liquid phase and a dispersed solid phase which at least in part are optically discriminable electrophoretic particles. The individual electrophoretic particles each are of practically the same density as the liquid phase, and at least part of the electrophoretic particles are pigment particles provided with a coating of organic material which is solid at the cell operating temperature but which melts at higher temperatures. The coating material contains at least one charge control agent. The charge control agent, preferably a salt of a divalent metal or metal of higher valency and of an organic acid, imparts a well-defined, uniform surface charge and a well defined, uniform surface potential to the particles.

REFERENCES:
patent: 3372102 (1968-03-01), Lennon
patent: 3684683 (1972-08-01), Ota
patent: 3812406 (1974-05-01), Henri
patent: 3914040 (1975-10-01), McVeigh
patent: 4093534 (1978-06-01), Carter et al.
patent: 4126528 (1978-11-01), Chiang

Affiliated with

Also associated with

Rating

Electrophoretic display does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrophoretic display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophoretic display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1063340