Which is better for CCFL backlight and LED backlight?
In terms of the characteristics of CCFL and LED, the breakdown voltage and the operating voltage of CCFL are relatively high, and the voltage of LED is very low. So LED's security is very good.In summary, LED is better than CCFL.
About life, although LED's life is very long, but if the user is overheating, will lead to a decline in life, now we take a dynamic method to control, so that the LED life can be more than one hundred thousand hours, according to the different driving, can satisfy different needs. CCFL usually only has twenty thousand to fifty thousand hours of life.
From the perspective of extension, (a) LED wider color gamut and color saturation can do more than 105%, whereas the CCFL is relatively narrow, most can only be around 70%; (b) LED very fast, LCD can help eliminate the trailing phenomenon; (c) a major drawback of LCD is "black is not black, if you use dynamic LED to control, can be a very good solution to this problem; (d) LED current can be adjusted; (E) LED is the green environmental protection product, do not contain mercury, is a solid light source, good shock resistance, low voltage security. So LED is likely to be widely used in the future.
Comparison between CCFL and LED, LED is DC, low voltage; and CCFL is high voltage (600 Volts), of course, a small area of CCFL also has low voltage, but generally also has more than 300-400 volts. The light source of LED can be distributed freely according to size and application. CCFL is relatively fixed, it needs more diffusion material to do the dispersion of light, so that the brightness uniformity can be achieved.
