| 摘要 |
<p>This invention provides an information display panel, which can retain good image properties even upon repetition of rewriting, and display medium particles for use in the information display panel. In the information display panel, at least one display medium containing electrified display medium particles is sealed in a space between two substrates at least one of which is transparent. Electrostatic force is allowed to act on the display medium by electric field forming means to move the medium and thus to display an image. The display medium particles comprise mother particles, child particles, and fine particles. The hardness of the surface of the mother particles can be increased by embedding child particles, which have smaller diameters than the mother particles not having a three-dimensionally crosslinked molecular structure and have a three-dimensionally crosslinked molecular structure, in the surface of the mother particles. Thereafter, the fine particles having a smaller diameter than the child particles are deposited on the mother particles with the child particles embedded therein, whereby burying of the fine particles in the surface of the mother particles can be suppressed.</p> |
