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US 7,609,443 B2Granted
Projection and/or rear projection screen
AssigneeSaint-Gobain Glass France
InventorsThomas Bertin-Mourot, Yannick Lebail
Life of this patent
Estimating the term…
Abstract
The backprojection and/or projection screen comprises at least a first substrate joined to a scattering layer producing a subsurface effect, which offers a resolution of at least 5×103 dpi, the image being able to be displayed without blurring at a viewing angle of 180° on both faces of the screen.
Claims20
A backprojection and/or projection screen, comprising:
- at least a first glass substrate having a scattering layer prepared by dispersing semitransparent mineral particles selected from the group consisting of silicon, aluminum, zirconium, titanium and cerium oxides, or a mixture of at least two of these oxides in a mineral binder, joined to a surface of the glass substrate which produces a subsurface effect, thereby forming a screen having front and rear faces, said scattering layer providing a viewing angle of less than or equal to 180° on both faces of said scattering layer.
Dependencies are inferred from the claim text.