Magnetic display panel

Details Magnetic display panel Magnetic display panel

1997-04-29

2000-08-15

Ahmad, Nasser

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

346 21, 428 72, 428 76, 428117, 428119, 428174, 428900, 434409, B32B 100, B43L 100

Patent

active

061033472

ABSTRACT:
An objective of the present invention is to provide a magnetic display panel capable of writing on both face and rear surfaces. A magnetic display panel, comprising a face substrate, a rear substrate, cell walls for forming a cell, for binding the face substrate and the rear substrate and for enclosing a dispersion liquid including a magnetic particle, wherein the cell walls having U-shaped cross sections are formed by bending and standing partially one or both of the face substrate and the rear substrate to almost 90 degrees, wherein a clearance of the U-shaped cross sections in each cell wall has an open angle of 0 to 20 degrees, wherein a base portion clearance of the U-shaped cross section is 0.1 mm to 1.0 mm, and wherein a top portion clearance of the U-shaped cross section is 0 to 1.0 mm.

REFERENCES:
patent: 4143472 (1979-03-01), Murata et al.
patent: 4368952 (1983-01-01), Murata et al.
patent: 4536428 (1985-08-01), Murata et al.
patent: 4643684 (1987-02-01), Murata et al.
patent: 5771039 (1998-06-01), Ditzik

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