Yes, tempered glass or acrylic can be added seamlessly between the display and the IR touch frame. Since IR technology relies on an optical light grid above the surface, it functions perfectly as long as the internal sensors are not physically blocked. However, for the best performance, please consider the following industrial guidelines:

• Thickness & Positioning: We generally recommend using 2mm to 4mm glass. Ensure the glass is securely mounted and flat, leaving a tiny, consistent gap from the inner filter strip to avoid structural pressure.

• Optical Treatment (Anti-Glare): For outdoor use, high-brightness environments, or large-size interactive displays, we highly recommend using AG (Anti-Glare) or AR (Anti-Reflection) tempered glass to eliminate reflections and ensure crystal-clear visibility.

• Vandal-proof & Safety: For public kiosks or educational interactive whiteboards, choosing IK08/IK10 rated tempered glass provides robust protection for the underlying LCD panel.