How long is the life of the industrial touch display? What is the life of the LCD display backlight? What are the influencing factors?
Liquid crystal display is a new type of display device. Compared with traditional display methods, it has many advantages, such as long service life, high speed, fast response speed, long visual distance, and strong environmental adaptability. The user-friendly design makes the LCD screen easy to install and maintain, and can be used flexibly anytime, anywhere, and is suitable for many installation conditions. So, how long is the life of an industrial touch display? What is the life of an LCD display backlight?
Depends on the life of the backlight source. It depends on what your backlight source is (it is generally considered to be white here), some are LED, some are CFL. LED life is longer than CFL's. The subject said yellowing, I personally think the light source may be CFL. It may also be due to the aging and yellowing of the light guide film. That's another question. Therefore, if we only talk about the backlight source and limit the LED, the life of the general LCD display or TV is 40,000 to 100,000 hours. This is a very vague value, which simply means that after 40,000 or 00,000 hours the luminous brightness of the LED drops to, say, 60 percent or less. Therefore, let's talk about the influencing factors of LED life.
1. It is the color of the LED. Different colors of LEDs have different lifespans. The backlight is white LEDs.
2. The influence of LED operating temperature. The higher the temperature, the faster the LEDs age. Backlight service life: CCF backlight (cold-cathed fluorescent lamp is a commonly used backlight source in LCDs) The life of , The time when the brightness of the backlight is reduced to half of its original brightness is only 10,000 hours, because consumer applications do not require the display to continue to work, so 10,000 hours of CCF backlight life is sufficient. However, in most This is not the case in industrial and medical applications. Efforts are being made to double the life of the backlight, but in most industrial display applications, 50,000 hours of life is considered the standard life for CCF backlights
3. Use time. The lifespan is so long, and it will still have an impact when it is turned on every day and when it is used.
Fourth, brightness adjustment. This principle still involves temperature. The brighter the temperature, the greater the current required by the LED, the more the LED itself heats up, and the lifespan is shortened.
