| 摘要 |
<p>Bichromal balls (15) have two hemispheres, typically one black and one white, each having different electrical properties. Each ball (15) is enclosed within a spherical shell and then a space between the ball and shell is filled with a liquid (14) 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. <IMAGE></p> |
