Will The Backlight Turn Off At High Temperatures?
Apr 12, 2022
Usually the working temperature of the backlight is -20-70 degrees, and the drawings before proofing will also be clearly marked. Yesterday, when a customer was doing a high temperature test, the temperature was 45 degrees, and the backlight went out and the picture was cooled to about 35 degrees. It is working normally again. It is suspected that our backlight cannot withstand high temperature. Later, after a series of tests, it is their driver chip problem, which is an inferior fake.
The light emission of the backlight depends on the lamp bead. The normal temperature resistance of an LED lamp bead is 110 degrees or even higher. When the temperature reaches the temperature that can damage the lamp bead, the lamp bead is irreversible after it is broken, and it will no longer be normal. After working, why do you say that the working temperature of the backlight is -20-70 degrees? First, the normal temperature resistance of the lamp bead is about 60 degrees. The higher the temperature, the shorter its lifespan. Secondly, the acrylic material is It will soften at about 90 degrees, so that there will be thermal expansion and contraction, and the thinner the tension, the easier it is to deform, because setting a reasonable working temperature range, so that the backlight can be used for a longer time.
