Indoor and outdoor P6 LED displays, although both called P6 (with a pixel pitch of 6mm), have significantly different design goals and technical specifications. The core differences are mainly reflected in the following aspects:
1. Brightness
Indoor P6:
Designed for lower brightness, generally around 800–1500 nits (cd/m²).
Primarily used in indoor environments to avoid excessive brightness and glare.
Outdoor P6:
Very high brightness, generally 5000–7000 nits or even higher.
Able to withstand direct sunlight, ensuring daytime visibility.
2. Protection Rating (IP Protection Rating)
Indoor P6:
Low requirements for waterproofing and dustproofing, generally IP20–IP30.
No need for rain, snow, or dustproof design.
Outdoor P6:
High protection rating, typically IP65 or higher.
Waterproof, dustproof, and lightning-proof, able to withstand wind, sun, and rain.
3. Viewing Angle
Indoor P6:
Horizontal viewing angle generally ≥160°, vertical viewing angle ≥140°.
Suitable for close-range viewing and relatively even audience distribution.
Outdoor P6:
Wider horizontal and vertical viewing angles are required, but brightness and anti-light scattering are more important.
Designed with a preference for long-distance viewing.
4. Pixel Packaging and Module Structure
Indoor P6:
Tightly packaged pixels, commonly using SMD 3-in-1.
Thinner module, lightweight, and easy to install.
Outdoor P6:
Larger and more durable module packaging, available in both SMD and DIP packages.
Thickened aluminum alloy or steel structure support enhances weather resistance and heat dissipation.
5. Refresh Rate and Grayscale
Indoor P6:
Requires a very high refresh rate (≥3840Hz) to ensure flicker-free close-up shooting or stage effects.
High grayscale requirements to ensure accurate color reproduction.
Outdoor P6:
A slightly lower refresh rate is acceptable (usually ≥1920Hz), as flicker is less noticeable at long distances.
Slightly lower grayscale requirements, but brightness is prioritized.
6. Heat Dissipation Method
Indoor P6:
Low power consumption; heat dissipation relies mainly on natural air convection.
Outdoor P6:
High power consumption; requires active cooling or enhanced heat dissipation design (aluminum casing, fan, heat sink, etc.).
Summary
Pixel Pitch: Both indoor and outdoor P6 are 6mm.
Brightness: Indoor P6 has lower brightness, generally 800–1500 nits, suitable for indoor environments; outdoor P6 has brightness exceeding 5000–7000 nits, suitable for direct sunlight.
Protection Rating: Indoor P6 has a lower protection rating (IP20–IP30), while outdoor P6 requires IP65 or higher, providing waterproof and dustproof protection.
Packaging: Indoor P6 often uses SMD 3-in-1 packaging for a thinner module; outdoor P6 can use SMD or DIP packaging for a more robust and durable structure.
Viewing Distance: Indoor P6 is suitable for close-range viewing, while outdoor P6 is suitable for long-range viewing.
Refresh Rate and Grayscale: Indoor P6 has a high refresh rate (≥3840Hz) and high grayscale, ensuring delicate colors at close range; outdoor P6 has a slightly lower refresh rate (≥1920Hz) and slightly lower grayscale requirements, but brightness is prioritized.
Heat Dissipation: Indoor P6 has low power consumption and can be cooled naturally; outdoor P6 has high power consumption and requires enhanced heat dissipation design, such as an aluminum alloy casing or fan assistance.
Indoor P6 prioritizes high definition, color accuracy, and close-range color performance; outdoor P6 prioritizes high brightness, protection, weather resistance, and long-range visibility.