led display lifetime-led screen
led displays led modules sales factory:Apollo mobile:008615875527577 MSN:[email protected]
A led display's lifetime is dertmined by the led light chip's lifetime.LED Manufacturers calculate the LED lifetime to be 100,000 hours under certain operating conditions. LED Display end of lifetime is when the frontal brightness has decreated to 50% of original brightness.
3 marjor factors decide LED'lifetime:
1. Manufacturing process of the LED.
2. Driving method of the LED.
3. Temperatures present at the LED die during operation.
LED thermal management is vitally important to maintaining LED lifetime. Increasing the power through an LED increases brightness but reduces its lifetime due to increased heat generation. Increased exposure to higher temperature also shortens the lifetime. LED thermal managerment can only be done through the LED lead frame by conducting the heat to a Printed Circuit Board (PCB) and by allowing allowing airflow to cool the LED lead frame.
LED Display components must be designed to handle a wide rang of outdoor environmental factors, such as temperature and humidity. All components must be coated, in order to protect from possible corrosion.