Light control film with reduced ghost images
AssigneeMinnesota Mining and Manufacturing Company
InventorsJeffrey J. Melby, Scott G. Theirl
Life of this patent
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Abstract
A louvered plastic film has louvers including central regions with a relatively high coefficients of extinction and outer regions with relatively low coefficients of extinction. Such a film provides a dramatic reduction in ghost images.
Claims30
A louvered plastic film comprising a plurality of clear regions separated by louvers wherein each of said louvers has a central region having a first coefficient of extinction and an outer region adjacent said clear region having a second coefficient of extinction, said first coefficient of extinction being at least 1.5 times said second coefficient of extinction.
A privacy screen for use with a cathode ray tube display said screen comprising louvered plastic film having a plurality of clear regions separated by louvers wherein each of said louvers has a central region having a relatively high coefficient of extinction and outer regions adjacent said clear regions having relatively low coefficients of extinction.
Dependencies are inferred from the claim text.