Magnetophoretic display panel

Details Magnetophoretic display panel Magnetophoretic display panel

1990-07-12

1992-09-29

Apley, Richard J.

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Chalkboard or equivalent means having easily erasable surface

B43L 100

Patent

active

051510324

ABSTRACT:
A magnetophoretic display panel comprising a plurality of cells that are sandwiched between two substrates and each of which is filled with a liquid dispersion comprising magnetic particles, a dispersion medium, a colorant and, optionally, a thickener. The magnetic particles are such that:

REFERENCES:
patent: 4643684 (1987-02-01), Murata
patent: 4804327 (1989-02-01), Miller
patent: 5018979 (1991-05-01), Gilano et al.
patent: 5057363 (1991-10-01), Nakanishi

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