English
LED display energy efficiency is measured by the "brightness/power consumption" ratio, measured in cd/W (candela per watt). For example, a model with Roleheller a brightness of 5000 cd/m² and a power consumption of 2000W has an energy efficiency of 2.5 cd/W. Energy efficiency evaluation needs to comprehensively consider the following key factors:
* Screen size and brightness: For every 1㎡ increase in area, power consumption increases by approximately 15-20%.
* Refresh rate: High refresh rates above 3840Hz increase power consumption by 30%.
* Power efficiency: High-quality power supplies can achieve a conversion efficiency of up to 95%.
* Scanning method: 1/16 scan consumes 25% less power than static scan but offers a 3x increase in refresh rate.
· Module Power Consumption Calculation: Single Module Power = Horizontal Pixels × Vertical Pixels × 0.1W (P10 example: 32 × 16 × 0.1 = 51.2W)
· Power Supply Configuration Formula: Number of Power Supplies = Total Power / (Power Supply Rated Power × 0.8 Redundancy Factor)
· Example: 20 P10 modules (1024W) require 1024 / (40 × 0.8) = 32 40A power supplies
· Energy Saving Technology: Using PWM-SS chips can reduce energy consumption by 30-45%
Scanning Type | Applicable Scenarios | Energy Efficiency Characteristics
1/16 Scan | Indoor Static Display | Lowest Power Consumption
1/8 Scan | Indoor Dynamic Content | Balanced Power Consumption and Effect
1/4 Scan | Outdoor High Brightness | Higher Power Consumption but Sufficient Brightness
Static Scan | High-End Applications | Highest Power Consumption but Best Effect
· Precise Calculation: Module Count = Screen Area / (Module Length × Module Height)
· Example: A 10㎡ P16 screen requires 10 / (0.256 × 0.128) = 305 modules
· Energy-Saving Design:
· Choose COB packaging modules (energy consumption reduced by 25%)
· Use a distributed power supply system, reducing temperature by 5-8℃
· Modular design supports quick replacement, reducing overall energy consumption
The energy efficiency assessment of LED displays relies not only on technical parameters but also on compliance with industry standards and certifications. These standards and certifications ensure that the performance and energy efficiency of the display meet market requirements. For example, industry standards such as SJ/T 11141-2017 provide detailed regulations on the energy efficiency, safety, and reliability of LED screens.<sup>9</sup> Furthermore, LED display products that have passed energy-saving certification typically have higher market acceptance and can meet the needs of different application scenarios. IV. Application Scenarios and Recommendations
Outdoor Billboards: Prioritize 1/4 scan or static scan
Conference Rooms/Exhibition Halls: Recommend 32 scan or static scan
Budget-Limited Scenarios: 1/16 or 1/8 scan is more economical
Virtual Shooting: Recommend 1/16 scan + refresh rate of 3840Hz or higher
