Layered structure with embedded graphical pattern
AssigneeDocover Oy
InventorsTeppo Hyvönen, Jari Ronkainen, Atso Toimela, Pusheng Peng
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Abstract
A method is presented for producing an optically transmissive layered structure for use as a display protector for electronic devices. The method comprises printing an ink pattern on a base layer, where said base layer is substantially optically transparent, and the base layer and ink are configured so that the ink reflects light with high incidence angle and transmits light with low incidence angle, when in use, thus displaying the pattern in the absence of light with high intensity and low incidence angle, the pattern becoming substantially undetectable otherwise.
Claims14
An optical multilayer structure for use as a display protector for electronic devices, comprising a base layer, onto which an ink pattern has been provided, and a protective layer laminated thereon, wherein
- the base layer is substantially optically transparent, and
- the base layer, the protective layer, and ink of the ink pattern are configured so that the ink reflects, when in use, light reaching the structure in higher incidence angles more effectively than light reaching the structure in lower incidence angles, thus rendering the ink pattern more visible in presence of light with higher incidence angles and intensity higher than intensity of light present with lower incidence angles, and transmits light reaching the structure in lower incidence angles more effectively than light reaching the structure in higher incident angles, thus displaying the pattern less clearly in the presence of light with lower incidence angles and intensity higher than intensity of light present with higher incidence angles.
Dependencies are inferred from the claim text.