Abstract A display surface for long-lasting fluorescent markings comprises a generally planar sheet of colored fluorescent film which is electrostatically charged and placed against one (front) side of a clear plastic panel member, with an airtight seal created between the two. The back side of the clear plastic panel is similarly electrostatically charged and placed against a sheet of photoreflective film, again with an airtight seal created between the two. The reflective surface of the photoreflective film is oriented outward towards the clear plastic panel and fluorescent film. These assembled layers are then sealed around their perimeter edges to prevent introduction of air and to preserve the induced electrostatic charges. The layers can then be mounted on a mounting board or other suitably strong, rigid material to enable them to be used as a writing surface, preferably with fluorescent-type writing markers such as pens or crayons.
A fluorescent writing surface comprising: a layer of fluorescent film having a front surface and a back surface, and a perimeter edge, said back surface being electrostatically charged; a layer of clear plastic having a front surface and a back surface, and a perimeter edge, said plastic layer front surface being sealed against said fluorescent film layer back surface, and said plastic layer back surface being electrostatically charged; a layer of photoreflective film having a front surface and a back surface, and a perimeter edge, said photoreflective film front surface being sealed against said plastic layer back surface; and an air tight sealing member sealing said fluorescent film layer perimeter edge, said plastic layer perimeter edge and said photoreflective film layer perimeter edge together.
Claim 2
Dependent Claim
124 words
A fluorescent writing surface comprising: a layer of fluorescent film having a front surface and a back surface, and a perimeter edge, said back surface being electrostatically charged; a layer of clear plastic having a front surface and a back surface, and a perimeter edge, said plastic layer front surface being sealed against said fluorescent film layer back surface, and said plastic layer back surface being electrostatically charged; a layer of photoreflective film having a front surface and a back surface, and a perimeter edge, said photoreflective film front surface being sealed against said plastic layer back surface; and an air tight sealing member sealing said fluorescent film layer perimeter edge, said plastic layer perimeter edge and said photoreflective film layer perimeter edge together.
Claim 3
Dependent Claim
24 words
The fluorescent writing surface of claim 1 wherein said photoreflective film layer comprises a layer of reflective film and a layer of clear film.
Claim 4
Dependent Claim
20 words
The fluorescent writing surface of claim 1 wherein said photoreflective film back surface is attached to a rigid mounting frame.