Aging Conditions and Time Regulations for LED Displays
The aging of LED displays is divided into white light aging (4 hours) and video aging (48 hours).
LED aging methods include constant current aging and constant voltage aging. A constant current source refers to a source where the current is stable and unchanged at any time. A source with frequency is not a constant current source, but an alternating or pulsating current source. An alternating or pulsating current source can be described as having a stable and unchanged effective value, but such a power supply cannot be called a "constant current source".
Constant current aging is the most in line with the current operating characteristics of LEDs and is the most scientific aging method for LED displays; overcurrent impact aging is also a new aging method adopted by manufacturers. By using a constant current source with adjustable frequency and current for such aging, it is expected to judge the quality and expected service life of LEDs in a short time, and many dangerous LEDs that cannot be selected by conventional aging can be screened out.
