Introduction Of LED Backlight Module And Full Analysis Of Its Advantages And Disadvantages

As the backlight system of the latest generation of LCD panels, LED backlight modules have many advantages compared to traditional CCFL backlights, but also have some disadvantages. Below, the author lists the advantages and disadvantages of LED backlight as follows, knowing these will help you to choose LED backlight display more rationally. advantage:

　　First, more energy-saving. Compared with the CCFL backlight, the LED backlight is greatly energy-saving. Generally, the civil-grade products of the same specification can save energy by more than 40%. According to our evaluation data, some high-quality LED backlight displays can save up to 60% more energy than mainstream CCFL products, which is definitely very energy-efficient. And, with the further maturity of LED backlight technology, LED backlight displays may be more energy-efficient in the future.

(Energy-saving is certain, but it is not as much as 60% or 40% you think when used. For example, a mainstream CCFL tn display has a maximum power consumption of 40W, an LED backlight has a maximum power consumption of 20W, and usually only a difference of 10W when using 50 brightness. about.)

　　 Second, green and environmental protection. The mercury in the CCFL backlight is a substance that is quite harmful to the environment, but the LED backlight does not contain this harmful substance. It is necessary to know that the total global output of displays in 2009 reached 220 million units. If LED backlight displays become popular in the future, it will greatly contribute to the improvement of the global environment.

　　 (This is considering the long-term interests of mankind...)

　　 Third, the color gamut is wider. Since the LED backlight module emits more pure white light than the traditional CCFL, it is easier to increase the color gamut of the display using the LED backlight. The improvement of the color gamut can make the monitor display more colors and make the color performance better.

(The color gamut is one aspect, and the nature of the panel is the other. The final color is "filtered" on the panel. The wide color gamut TN screen has over-saturated colors, which is more pleasing to the human eye, but the reality is not enough, wide viewing angle + wide color gamut It's the kingly way.)

　　 Fourth, longer life. Theoretically speaking, compared with CCFL backlight, LED backlight has a longer life span and a longer brightness decay period. And with the further maturity of technology, there is still room for extension of the lifespan of LED backlight.

　　 (The life of the LED backlight is often not matched with the life of the driving power supply, especially for low-priced ones. The final life is not the backlight system)

Introduction of LED backlight module and its advantages and disadvantages