Projection markerboard
AssigneeWalltalkers
InventorGregg A. Steliga
Life of this patent
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Abstract
A high quality projection screen which also is a dry erasable markerboard is disclosed, together with a method for making such a combination projection screen and dry erasable markerboard. The light reflecting writing surface of the combination projection screen and dry erasable markerboard preferably is white, off-white or light in color, and has a bi-directional lenticular embossed surface for increased and more accurate reflection of projected light, and a wider angle effective viewing area. The light reflecting writing surface preferably is made of a thin film of fluoropolymer, such as a modified copolymer of ethylene and tetrafluoroethylene.
Claims17
A combination projection screen and dry erasable markerboard comprising a substantially opaque, dry erasable, reflective, bi-directional lenticular surface.
A combination projection screen dry erasable markerboard comprising a substantially opaque, dry erasable, reflective, hi-directional lenticular surface wherein the substantially opaque, dry erasable, bi-direction lenticular surface comprises a dry erasable marker contacting layer and a light reflecting projection layer wherein the dry erasable marker contacting surface is a thin film of a fluoropolymer.
A method of making a combination projection screen and markerboard comprising the steps of laminating together a first layer which is a thin film of a fluoropolymer and a second layer formed from a film made from the group consisting of polypropylene, polyester, and polyvinyl chloride, and embossing the resulting laminate to provide a substantially opaque, dry erasable, bi-directional lenticular surface.
Dependencies are inferred from the claim text.