Is Higher Brightness Always Better For LED Display?

For LED displays, higher brightness is not always better; this is a common mistake many users make when purchasing LED displays.

1. It affects the comfort of the human eye (the most important factor).

–Visual fatigue and stinging sensation: In indoor or dimly lit environments, excessively high screen brightness can strongly stimulate the eyes, causing them to quickly feel dry, tired, sore, and even dizzy.

This is similar to looking at a mobile phone in the dark at night; even with the brightness turned down to the lowest setting, it still feels glaring.

–Risk of long-term vision damage.

2.Impact on LED display products themselves

（1）Impact on Image Quality and Color Performance

Color Distortion: LED displays use a ratio of red, green, and blue chips to display colors. Excessive brightness may overdrive certain color chips to achieve the desired brightness, leading to decreased color saturation, washed-out colors, distortion, and a loss of vibrancy and depth.

Reduced Contrast: Excessive brightness can make even black areas appear grayish, reducing the overall contrast and making the image look washed out and lacking depth.

（2）Shortened Display Lifespan

Accelerated Light Decay: When LED chips operate under excessive brightness, their core materials age faster, leading to accelerated brightness decay and a shorter overall lifespan for the display.

Increased Failure Rate: Prolonged high-load operation also increases the burden on components such as the drive circuitry, resulting in a higher rate of lamp failures and increased maintenance costs.

（3）Energy Waste

Higher brightness naturally means higher power consumption. Using excessively high brightness, while meeting viewing requirements, is an unnecessary waste of energy and contradicts the principles of green environmental protection.

Therefore, we need to determine the brightness of the LED display based on the usage environment and viewing distance.

1）For outdoor environments, you can choose ≥5000 nits, or even 8000-10000 nits.

Reason: Withstand strong direct sunlight and ensure that the image content remains clearly visible even in bright sunlight during the day.

2）Semi-outdoor/window screen, you can choose 2500 – 5000 nits

Reason: They are usually installed under the eaves or inside the shop window, which partially blocks the light, but the ambient light is still relatively strong.

3）Indoor conference/monitoring room, you can choose 300 – 800 nits.

Reason: Ambient lighting is controllable and stable, and the viewing distance is relatively close. Excessive brightness will seriously affect viewing comfort.

4）For indoor broadcasting studios, you can choose 800-1500 nits.

Reason: The studio lighting is intense, requiring the monitor to have sufficient brightness to match the lighting effects and prevent the screen from appearing “dim”.

5）For movie theaters/dark environments, you can choose 300 nits or even lower.

Reason: The ambient light is extremely dark, requiring very low brightness to protect the audience’s eyesight and create an immersive viewing experience.

Now modern LED display screens are equipped with ambient light sensors and automatic brightness adjustment functions.

It can intelligently solve the brightness requirements at different times and under different weather conditions.