The Difference Between Display Brightness Levels (cd/m²) – How to Choose the Right One for Each Application
The Difference Between Screen Brightness Levels (cd/m²) – How to Choose the Right One for Your Display
When selecting displays for Digital Signage, Video Wall, or Interactive Screens, one of the most important specifications to consider is brightness – typically measured in cd/m² (candela per square meter), also known as nits. This measurement affects not only visibility but also determines if a screen is suitable for indoor or outdoor environments.
So, what are the differences between brightness levels? And how do you choose the right one for your needs? Let CNTech guide you through!
What is cd/m² Brightness?
Brightness (also known as luminance) is measured in cd/m², indicating how much light a screen emits per square meter. The higher the value, the brighter the screen – which is essential for readability under bright ambient light like sunlight or overhead lighting.
Common Brightness Levels Comparison
| Brightness Level (cd/m²) | Visual Impact | Ideal Application |
|---|---|---|
| 250 – 350 nits | Basic brightness | Offices, meeting rooms, indoor use only. |
| 400 – 700 nits | Moderate brightness | Indoor digital signage, shopping malls. |
| 700 – 1000 nits | High brightness | Displays near windows or under indirect sunlight. |
| 1000 – 2000 nits | Very bright | Semi-outdoor use, under awnings or direct daylight. |
| 2500 – 5000+ nits | Ultra bright | Outdoor LED displays, DOOH advertising. |
Choosing Brightness for Each Display Type
✅ Digital Signage (Indoor & Outdoor)
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Indoor: 500 – 700 nits – energy efficient and visually sharp.
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Outdoor: 2500 – 5000+ nits – essential for visibility under direct sunlight.
✅ Videowalls
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Recommended: 500 – 700 nits
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Ideal for control centers, showrooms, banks, or command rooms.
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Uniform brightness is critical across panels to avoid inconsistency.
✅ Interactive Displays (Touchscreens)
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Recommended: 350 – 500 nits
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Best for classrooms, meeting spaces, and training centers.
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Anti-glare technology enhances touch experience and clarity.
CNTech – Your Professional Display Solutions Partner
With years of experience delivering specialized display systems, CNTech provides trusted, high-quality products along with expert consultation and dedicated after-sales service.
We are a reputable distributor of digital signage screens, videowalls, and advertising LCDs in Vietnam. Our professional team ensures personalized support and service excellence every step of the way.
Contact CNTech for a free consultation
Hotline: 0854 965 965
Email: sales@cntech.com.vn