Method of filling an electrophoretic display

Details Method of filling an electrophoretic display Method of filling an electrophoretic display

1992-10-21

1994-01-18

Rosenbaum, Mark

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

2041816, 2041817, 204299EC, C25D 1300

Patent

active

052795110

ABSTRACT:
The present invention is a method of filling the interstice between the anode structure and the cathode structure of an electrophoretic image display (EPID) with a fluid dispersion containing solid pigment particles. And more specifically, a method of filling such EPIDs when the interstice between the anode structure and the cathode structure is less than 0.007 inches. The present invention method includes the steps of coating the anode structure with pigment particles prior to the assembly of the anode structure or cathode structure into the EPID. After the pigment particle coated anode or cathode structure has been assembled into the EPID, the EPID is filled with a suspension medium lacking any pigment particles. An electrophoretic effect is then created within the EPID causing the pigment particles to migrate away from the anode or cathode structure they coat, thereby becoming disperse within the suspension medium.

REFERENCES:
patent: 2442863 (1948-06-01), Schneider
patent: 3540990 (1970-11-01), Onishi et al.
patent: 3756693 (1973-09-01), Ota
patent: 4305807 (1981-12-01), Somlyody
patent: 4482447 (1984-11-01), Mizuguchi et al.

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