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Pattern printed transparent sheet

  • US 20080182041A1
  • Filed: 01/22/2008
  • Published: 07/31/2008
  • Est. Priority Date: 01/23/2007
  • Status: Active Grant
First Claim
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1. A pattern-printed transparent sheet in which a transparent substrate comprises a base material and a primer layer, and a non-visible light reflective transparent pattern is printed on the surface of the primer layer;

  • an ink constituting the transparent pattern contains a material having a wavelength selective reflectivity to a wavelength in an infrared or ultraviolet region;

    the primer layer consists of a primer composition repelling the ink; and

    when a cross section obtained by cutting the transparent pattern in a face orthogonal to the above transparent substrate is observed under a scanning electron microscope, the transparent pattern comprises a multilayer structure comprising a fixed repeating cycle and having a curved part and reflect selectively either of a left circularly polarized light component and a right circularly polarized light component in an incident light.

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