Lenticular hidden text boards for small people

Shields were installed on the streets of Madrid that show a “hidden” message for children under 1.35 m tall.

The surface of the billboard is made using lenticular printing. This technology is familiar to everyone who has seen a postcard, a calendar or a badge with a flip picture that changes when it is tilted.

The Spanish organization ANAR Foundation is engaged in protecting children from domestic violence. An adult sees only a photo of a child on a billboard.
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But if a short person is looking at the shield, then bruises appear on the child’s face, and an emergency phone is displayed next to it.







The hidden message is displayed only for people below 1.35 m, which roughly corresponds to children under 10 years of age.



The principle of operation of the lenticular surface is quite simple. On the image put a lens of a hilly shape.



If you look at it from different angles, the light is refracted in different ways and you can see different images. For example, it can be used to demonstrate stereo images by feeding separate images for the left and right eyes.



In the case of social advertising, instead of a stereo pair, two variants of the image are generated: top view and bottom view.