For interactive all‑in‑one displays — whether deployed in classrooms, corporate meeting rooms, showrooms, or public spaces — the touch surface is the first line of user experience. It defines:
This surface is almost always tempered glass, but not all tempered glass is created equal. Understanding glass material, thickness, hardness, coatings, and bonding techniques is key to engineering a display that feels premium, resists damage, and lasts long.
In this article, we’ll explain how tempered glass is specified in the industry, what the key parameters mean, and how Qtenboard as a factory approaches tempered glass design and customization in our interactive all‑in‑one systems.
Tempered glass is ordinary glass that has been heat‑treated or chemically strengthened to dramatically increase its mechanical strength and safety profile.
During tempering:
This makes it ideal for interactive displays — where users tap, swipe, write, and press on the surface thousands of times a day.
When comparing interactive display models from different manufacturers, you’ll commonly see these glass specs listed:
| Parametri | Typical Value | Meaning |
|---|---|---|
| Thickness | 4 mm (common) | Balances strength and optical clarity |
| Surface Treatment | Anti‑glare (AG) | Reduces reflections under bright lighting |
| Hardness | >H7 (Moh’s) | Scratch resistance vs pens, nails, dust |
| Transparency | ~95% | High light transmission for clean image quality |
| Chemical Strengthening | Seçili Qurğulu | Improves toughness beyond typical tempering |
| Optical Bonding | Seçili Qurğulu | Reduces air gap between glass + panel, improves contrast & touch response |
Most industry offerings use 4 mm tempered glass on displays from 55″ up to 110″. This thickness strikes a balance between:
For example, several mainstream interactive display models list 4 mm tempered AG glass as their front protective layer.
Surface hardness is often reported in Moh’s scale, where H7+ is common for high‑quality AG temper glass on interactive panels. AG (anti‑glare) coatings also help scatter ambient reflections, improving usability in bright classrooms or conference halls.
Some high‑end displays use optical bonding, where a clear resin is used to eliminate the air gap between the glass and LCD. This improves:
—but adds cost and complexity.
Tempered glass on an interactive display is far more than a protective shield. It contributes to functionality in these areas:
Normal glass can crack or shatter with a strong tap or strike; tempered glass resists such forces and, if broken, crumbles into small, less dangerous fragments.
In daily use, the glass is exposed to styluses, nails, dust particles, and cleaning cloths. A hardness of H7 or higher helps keep the surface clean and clear.
Anti‑glare (AG) and high‑transparency glass help:
This is crucial for displays used for teaching, presentations, or creative work.
There are several key ways glass is assembled in an interactive system:
The simplest approach is tempered glass on top of the LCD with an air gap — standard in many mid‑range products.
Anti‑glare coatings are applied to help cut reflections without significantly reducing clarity. Most mainstream interactive panels list tempered AG glass in their specs.
Optically bonded glass eliminates the air gap between the glass and the LCD, improving:
This is often seen in premium displays or industrial screens used in high‑ambient light environments.
From competitor specifications we observe:
This reveals an opportunity: many manufacturers treat glass as a passive protective layer, not a designed engineering component. Qtenboard takes a different approach.
As a manufacturer with in‑house glass design and integration capabilities, Qtenboard treats the tempered glass not as an afterthought, but as an engineered module tailored to the display’s size, use case, and environmental conditions.
While 4 mm is standard, Qtenboard supports:
This ensures optimal strength without unnecessary weight.
Qtenboard uses tempered glass with controlled surface hardness and consistent anti‑glare treatment, so that scratch resistance and visual clarity are not left to commodity suppliers.
For projects that demand:
We offer optically bonded glass solutions, with professional lamination and bubble‑free assembly.
We pay attention to small but important details such as:
These details reduce the risk of micro‑cracks and extend panel life.
As a factory, we implement:
This ensures repeatable, high‑quality tempered glass integration across batches.
Here’s a simple decision guide:
For Standard Education & Office Use
For High‑Traffic or Public Spaces
For High‑Ambient Light or Premium Visual Needs
Throughout these options, Qtenboard can customize each configuration based on project and environment.
Tempered glass is more than just a “cover layer.” It protects the LCD, enhances optical performance, and contributes to safety and durability.
Compared with generic industry practices that treat glass as a commodity, Qtenboard’s factory capabilities allow:
This ensures that our interactive all‑in‑one displays are not just visually compelling, but also engineered for performance, reliability, and long‑term use.
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