Writer by Screenage in Blog

Glass Performance Test for Commercial LCD Displays: Transmittance, UV Protection and Impact Safety

 

Tempered vs Laminated vs AR Glass

Which Front Glass Is Better for Commercial LCD Displays?

When choosing a commercial LCD display, many buyers focus on brightness, resolution, screen size, and installation style. However, one important component is often overlooked: the front protective glass.

For commercial LCD displays, the front glass is not only a transparent cover. It can affect light transmission, reflection, heat control, UV protection, impact resistance, safety performance, and the long-term reliability of the display.

In this test, Screenage compared three common front glass options used in commercial LCD display projects:

● Ordinary tempered glass
● Double-layer laminated glass
● AR anti-reflection glass

All three samples were tested on the same optical transmittance tester to compare three key indicators: light transmittance, infrared blocking rate, and ultraviolet blocking rate.

Why Front Glass Matters for Commercial LCD Displays

The front protective glass sits between the LCD panel and the external environment. It helps protect the display from daily contact, impact, dust, and environmental exposure.

But different types of glass perform differently.

For example, a glass with higher light transmittance can help the screen image look brighter and clearer. A glass with better infrared and UV blocking performance can help reduce heat and material aging. A safer glass structure can also reduce the risk of flying fragments when the glass is damaged.

This is why choosing the right front glass should depend on the actual project environment, not only on price.

Test Result 1: Ordinary Tempered Glass

The first sample tested was ordinary tempered glass.

Test results:

● Light transmittance: 91%
● Infrared blocking rate: 17%
● Ultraviolet blocking rate: 12%

Ordinary tempered glass provides good basic transparency and is widely used in commercial display applications. It is suitable for many indoor LCD display projects where the environment is relatively stable and there is no special requirement for anti-reflection or high safety protection.

Its main advantages are simple structure, good basic strength, and cost efficiency.

However, in stronger light environments, ordinary tempered glass may still produce visible reflections. In the breaking test, when the tempered glass was shattered, it broke into many fragments immediately. This is why it may not be the best option for public areas or impact-prone environments where safety is a major concern.

Test Result 2: Double-Layer Laminated Glass

The second sample tested was double-layer laminated glass.

Test results:

● Light transmittance: 89%
● Infrared blocking rate: 23%
● Ultraviolet blocking rate: 98%

Compared with ordinary tempered glass, laminated glass has slightly lower light transmittance. It is also heavier because of its double-layer structure.

However, its safety performance is much stronger.

Double-layer laminated glass is made with two layers of tempered glass bonded together with a PVB interlayer. When the glass is impacted or broken, the interlayer helps hold the fragments together instead of allowing them to fly out easily.

In the breaking test, the laminated glass showed a very clear safety advantage. Even after impact, very few fragments flew out.

This makes double-layer laminated glass a better choice for:

● Outdoor display projects
● Public areas with heavy foot traffic
● Transportation hubs
● Shopping malls
● Schools and public service terminals
● Locations where the screen may be touched, bumped, or hit
● Projects requiring higher safety protection

Although laminated glass is heavier and has slightly lower light transmission, its UV blocking rate and fragment-control performance make it highly suitable for projects where safety and durability matter more than maximum transparency.

Test Result 3: AR Anti-Reflection Glass

The third sample tested was AR anti-reflection glass.

Test results:

● Light transmittance: 96%
● Infrared blocking rate: 12%
● Ultraviolet blocking rate: 3.4%

AR glass delivered the highest light transmittance among the three samples. This means more screen light can pass through the front glass, helping the LCD image look clearer, brighter, and more vivid.

The biggest advantage of AR glass is reflection reduction.

For high-end commercial LCD display projects, reflections can strongly affect the viewing experience. Store lighting, windows, ceiling lamps, and surrounding objects may reflect on the glass surface and make the screen content less readable.

AR anti-reflection glass helps reduce these surface reflections and improves image clarity.

It is especially suitable for:

● Luxury retail stores
● Brand showrooms
● Museum displays
● Corporate exhibition spaces
● High-end window-facing displays
● Premium commercial environments
● Projects where image clarity and visual quality are critical

However, AR glass is mainly selected for optical clarity and low reflection. If the project requires stronger safety performance against impact or broken-glass risk, laminated glass may still be the better option.

Understanding Infrared and UV Blocking

To understand the test data, we need to look at how sunlight affects commercial LCD displays.

About 45% of solar energy is in the infrared range, while about 5% is in the ultraviolet range.

Infrared energy increases heat. For LCD displays, excessive heat can affect internal components, backlight performance, and long-term operating stability.

Ultraviolet exposure can accelerate material aging. Over time, UV exposure may affect optical materials, adhesives, surface finishes, and other parts of the display structure.

Therefore, higher infrared and UV blocking rates can help reduce heat and aging, improve operating stability, and extend the service life of the display.

In this test, laminated glass showed the strongest UV blocking performance, while AR glass showed the best light transmittance and viewing clarity.

Impact Resistance Is Also Important

In addition to optical performance, impact resistance is also important for commercial display projects.

All three glass samples have been tested to the IK10 impact resistance level. This helps the front glass better withstand knocks, accidental collisions, trolley impacts, and falling objects in everyday environments.

For commercial LCD displays installed in public spaces, impact protection can reduce the risk of glass cracking, becoming damaged, loosening, or exposing the LCD panel to external damage.

However, impact resistance is not the only factor. What happens after the glass breaks is also very important.

In the breaking comparison, ordinary tempered glass and AR glass shattered into many pieces, while double-layer laminated glass held most fragments together because of its PVB interlayer.

This is why laminated glass is recommended for areas where safety risk is higher.

Which Glass Should You Choose?

There is no single best glass for every project. The right choice depends on the actual application environment.

Choose ordinary tempered glass if:

● The project is mainly indoor
● The environment is relatively controlled
● Cost efficiency is important
● There is no strong requirement for anti-reflection or extra safety protection

Ordinary tempered glass is a practical option for standard indoor commercial LCD displays.

Choose double-layer laminated glass if:

● The display is installed outdoors
● The project is in a public area
● The location is prone to impact
● Safety is a top priority
● You want stronger UV blocking performance
● You want to reduce the risk of flying fragments after breakage

Double-layer laminated glass is recommended for outdoor areas, transportation hubs, shopping malls, public service terminals, and other high-traffic environments.

Choose AR anti-reflection glass if:

● The project requires premium visual clarity
● The screen is used in a high-end retail or showroom environment
● Reflection reduction is important
● You want better image transparency and a cleaner viewing experience
● The display is used for luxury products, exhibitions, or brand presentation

AR glass is ideal for high-end commercial projects where screen clarity and image quality are the main priorities.

Final Recommendation

For commercial LCD display projects, the front glass should be selected based on both optical performance and application safety.

Ordinary tempered glass offers a balanced and cost-effective solution for standard indoor projects.

Double-layer laminated glass provides stronger safety protection, excellent UV blocking, and better fragment control, making it suitable for outdoor and impact-prone environments.

AR anti-reflection glass delivers the highest light transmittance and a premium viewing experience, making it the best choice for high-end retail, showroom, and display applications where reflections must be reduced.

At Screenage, we help customers choose the right LCD display structure according to the real project environment, including brightness, installation location, glass type, cooling design, and long-term operation requirements.

Looking for a commercial LCD display solution for your next project?

Contact Screenage to discuss your indoor display, outdoor display, window-facing display, or customized commercial LCD display requirements.

ht, or insufficient testing. For commercial display projects, these risks can lead to higher after-sales costs and project failures.