IK10 Cover Glass for Outdoor Displays

2026-06-18

If you're a display manufacturer serving outdoor signage, EV charging stations, or public kiosks, you already know the drill: standard cover glass just doesn't cut it.

One stray baseball, a bump from a cleaning cart, or even deliberate vandalism can crack the panel and take the whole display offline. And replacing an LCD module in the field isn't cheap.

That’s why the IK10 rating—20 joules of impact energy, per IEC 62262—has quietly become the benchmark for any outdoor equipment that sees real traffic.

Material and process – it’s not just about thickness.

Thicker glass helps, but that’s only part of the story. You’ve got two proven routes:

Thermal tempering works well for panels 6 mm and up. Heat the glass, quench it fast, and you get a strong compressive surface layer. It’s reliable and cost-effective, especially for larger displays where weight isn’t a deal breaker. (Soda Lime Glass)

Chemical strengthening is the go-to for thinner designs (for example 4 mm). Submerge the glass in a molten potassium salt bath, and the sodium ions get swapped for bigger potassium ions, creating a tight stress layer. The payoff? You get IK10 strength with a slimmer profile. (Aluminosilicate Glass)

Need extra safety? Add a PVB or SGP interlayer for lamination. That way, even if the glass does crack, it stays in place, and you still keep over 95% clarity.

And don’t forget AR and Ag Coatings—they’re essential for sunlight readability, and they don’t weaken the impact performance if applied correctly.

Testing – what the lab actually does

IK10 certification isn’t just paperwork. Per EN/IEC 62262 and EN 60068-2-75, they drop a 5 kg steel mass from 400 mm onto the glass surface.

That’s about 20 joules, hitting multiple spots—usually five—across the display area.

The pass criteria are straightforward: does the glass break? Does the touch still work? Does the display keep running?

Real-world field data from major integrators shows that well-engineered IK10 modules hold up optically even after repeated hits.

The real art is balancing thickness, strengthening method, and the frame design behind the glass.

Get that right, and you extend product life, cut service calls, and lower the total cost of ownership—all while keeping the picture crisp under the sun.