| 摘要 |
Gyricon balls are provided with magnetic pads that allows them to be locat ed into two different positions by means of a further stationary magnetic pad. The magnetic pads are engulfed and sequestered from sight so they do not decreme nt the brightness of the display. The magnetic pads are made by dispersing magnetic pigments into the polyethylene plastic. The addition of aluminum octoate to one hemisphere of the gyricon ball causes the pigmented plastic on that side of the ball to attempt to envelope the pigmented plastic on parts of the ball that does not have aluminum octoate added during the ball making process.
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