Some uses of microencapsulation for electric paper

Details Some uses of microencapsulation for electric paper Some uses of microencapsulation for electric paper

1995-01-03

1997-02-18

Ryan, Patrick

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

4283202, 4284022, 42840221, 264 4, 264 7, B32B 300

Patent

active

056040270

ABSTRACT:
Bichromal balls have two hemispheres, typically one black and one white, each having different electrical properties. Each ball is enclosed within a spherical shell and then a space between the ball and shell is filled with a liquid to form a microsphere so that the ball is free to rotate in response to an electrical field. The microspheres can then be mixed into a substrate which can be formed into sheets or can be applied to any kind of surface. The result is a film which can form an image from an applied electrical field.

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