What harm will the full -color LED display temperature be too high?

In public places such as shopping malls, squares, and subways, the full -color LED display has become an important tool for information dissemination and advertising display. Especially in summer, the impact of high temperature environment on the LED display is particularly significant. The full -color LED display at high temperature will cause a series of problems and harm. The following are the details of the editor of Weifeng Technology for you:

LED's life span shortened

According to laboratory data, when the working temperature of LED increases from 63 ° C to 74 ° C, its service life will be sharply reduced from 36,000 hours to 16,000 hours. This means that the increase in temperature will significantly reduce the service life of LEDs, affecting the long -term stability and reliability of the display.

Decreased luminous efficiency and light failure

When the working temperature of the full -color LED display exceeds the loading temperature of the chip, the light emitting efficiency will be reduced rapidly, resulting in obvious light failure and may cause damage. In addition, the LED display is usually packaged in transparent epoxy resin. If the knot temperature exceeds the solid phase transition temperature, the packaging material will change to rubber -like, and the thermal expansion coefficient will rise sharply, which will cause the display screen and failure. Take you to understand LED chips: technology, application and development.

System cost increase

Under high temperature environments, too much heat dissipation parts may be damaged and need to be configured, which will undoubtedly increase the maintenance cost of the system. Damage and replacement of heat dissipation parts not only increases economic costs, but also can cause intermittent faults of the display and affect normal use. Is the LED billboard expensive? How high is running?

Adding additional consideration of indoor full -color LED display

For indoor full -color LED display, in addition to the above problems, the following points need to be considered:

Proliferation of defects in chip materials

At higher temperatures, the defects in the material of the full -color LED display chip will quickly proliferate and reproduce until the emitting area is invaded, forming a large number of non -radiation composite centers, which seriously reduces the lighting efficiency of the LED display. What is the difference between CSP and COB LED chips?

Effect of micro -defect and impurities

Under high temperature conditions, the micro -defects in the material and the rapid diffusion impurities from the interface and the electric board will also introduce a luminous area to form a large number of deep energy levels, which will also accelerate the light decay of LED display devices.

In summary, the full -color LED display work will bring many harms in high temperature environments, including shortening service life, reducing lighting efficiency, and increasing system costs. Therefore, for the installation and use of the LED display, temperature control and heat dissipation measures must be taken into account to ensure the stability and long -term performance of the display. Through reasonable design and maintenance, the impact of high temperature on LED display can be effectively reduced, its service life is extended, and the display of the display screen is ensured.

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