What are the differences between indoor and outdoor bar-type stretched displays?

Bar-type LED displays are ubiquitous in our daily lives, found in elevators, shopping malls, buses, and on roadsides for directional signage. Are these the same as outdoor bar-type displays?

No, they are definitely different. We can distinguish them based on indoor and outdoor environments. The core differences between indoor and outdoor bar-type displays lie in protection, brightness, and structure.

1. Protection Level: Indoor displays are typically IP30 (dustproof), while outdoor displays require IP65+ (waterproof, dustproof, and resistant to sun and rain).

2. Brightness: Indoor displays require 300-800 cd/m² for sufficient visibility, while outdoor displays need 2000-5000 cd/m² to withstand strong sunlight.

3. Structure/Heat Dissipation: Indoor displays are thin and lightweight with no special heat dissipation requirements, while outdoor displays have thicker casings and independent heat dissipation systems, including temperature control and anti-fog/frost features.

In addition, there are other differences:

4. Display Panel: Indoor bar-type displays mostly use ordinary LCD/LED panels without special treatment, while outdoor displays use UV-resistant panels that are anti-aging and resistant to high and low temperatures.

5. Structural Materials: Indoor displays use lightweight materials such as thin aluminum alloy/plastic. Outdoor displays use thickened metal casings for protection against drops and rain erosion.

6. Operating Temperature: Indoor displays operate at 0℃~40℃ (suitable for indoor constant temperature environments), while outdoor environments are harsher, requiring a temperature range of -30℃~60℃ (resistant to extreme cold and heat).

Therefore, there are significant differences in material selection between indoor and outdoor bar-type displays. When choosing a display, it's crucial to clearly define your usage scenario and then consult with the supplier to select the optimal screen.