Importance of LED display heat dissipation technology

82 views admin 2025-04-02

The heat dissipation management of LED display is the core link to ensure its technical performance and commercial value. Its importance can be deeply analyzed from three dimensions: ‌

The luminous efficiency of LED chips is significantly negatively correlated with temperature. Experimental data show that when the junction temperature rises by 10℃, the light efficiency attenuation can reach 3%-5%, and the color temperature shift exceeds 200K. An efficient heat dissipation system can control the chip temperature below 60℃, ensure that the brightness output is stable at more than 95% of the initial value, and avoid problems such as phosphor aging and wavelength drift caused by high temperature. This is especially important for high-end scenes such as color consistency of advertising screens and color accuracy of cinema screens.

According to statistics, about 35% of LED display failure cases are directly related to component degradation caused by overheating. Excellent heat dissipation design can extend the life of the display from the conventional 5 years to 8-10 years, and reduce the maintenance frequency by more than 40%. For example, the outdoor large screen using heat pipe technology can control the annual average failure rate within 0.5% under the condition of 18 hours of work per day, saving about 220,000 yuan/thousand square meters in operation and maintenance costs compared with the traditional air cooling solution.

In extreme environments with a temperature difference of 70°C (such as the temperature difference between day and night in the desert and high-humidity coastal areas), the modular liquid cooling system can maintain the screen temperature fluctuation within ±5°C, and with the IP65 protection design, ensure that the display screen can work normally in the range of -40°C to 85°C. The low-temperature special heat dissipation screen used in Harbin Ice and Snow World in 2023 still maintains 98% brightness output at -35°C, confirming the decisive role of advanced heat dissipation technology in system reliability.