Signage

Signage is the general term for visual media for conveying information that are installed in public spaces and commercial facilities, such as billboards, posters, signs, and information boards. Digital signage (electronic signboards) displays dynamic content on LCD displays or LED panels, but static signage made of paper or acrylic boards is still widely used.

QR codes make up for the limits of static signage. Posters and information boards have limited display space and constraints on the amount of information, but just by adding a single QR code, you can create an entrance to unlimited digital content such as detailed information, multilingual support, videos, and reservation forms. You can keep the information up to date simply by updating the destination of the QR code, without reprinting the display.

There are design principles for placing QR codes on signage. Important points include setting the size according to the viewing distance (a guideline is at least one tenth of the reading distance: 10cm square for a distance of 1m, 50cm square for 5m) and ensuring contrast with the surrounding design. Adding a clear CTA alongside the code and placing it at a height that is easy to scan (from eye level to waist level) are also important.

Outdoor signage also requires consideration of weather resistance. Fading from direct sunlight, smudging from rain, and ink deterioration at low temperatures reduce the reading accuracy of QR codes. Using UV-cut lamination and water-resistant ink is recommended.