What is the difference between LED backlight screen and LCD screen?
Author:Xiao Yingchao Time:2021-06-08 16:13 Browse(997)
LED backlight is mainly divided into two categories: white LED and three color LED. No matter what kind of classification of LED backlight, the distribution of its luminous body is very uniform, while CCFL backlight tubes are usually bar, L-shaped or U-shaped, no matter which shape, their distribution is not very uniform compared with LED backlight, so LED backlight has the characteristics of more uniform emission. In addition, the service life of ordinary CCFL backlight is 50000 hours, while the service life of LED is more than 100000 hours. Therefore, the brightness attenuation of the LED backlight is better than that of the CCFL backlight when the LCD or LCD TV is used for a long time.
Led backlights are mainly divided into two categories: white LED and tricolor led.

What is the difference between LED backlight screen and LCD screen?

no matter which category of LED backlights they belong to.
the distribution of their luminous bodies is very uniform, while CCFL backlight tubes are usually bar, L-shaped or U-shaped, no matter which shape, their distribution is not very uniform relative to the LED backlight, Therefore, the LED backlight has the characteristics of more uniform light emission.
in addition,
the service life of ordinary CCFL backlight is 50000 hours, while the service life of LED is more than 100000 hours.
therefore, the brightness attenuation of LCD or LCD TV with LED backlight is better than that of CCFL backlight after a long time of use.
the brightness attenuation of backlight is better than that of CCFL backlightThe LED backlight is relatively more energy-saving.
for the three color LED backlight,
in addition to the above advantages, it can also provide a broader color gamut.
at present, CCFL backlight improves the color gamut value of the display by adding phosphor and other substances.
but the maximum can only be increased to about 104% of NTSC, However, tricolor LED can easily achieve 118% or even higher gamut of NTSC.
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Hello! At present, the biggest difference between LED LCD and ordinary LCD is the "backlight" used.
ordinary LCD uses CCFL (cold cathode fluorescent lamp) as the light source.
LED LCD uses LED as the backlight.
compared with ordinary LCD, the advantages of LED LCD are mainly reflected in the following three aspects:1、 The thickness of LCD with LED backlight will be further reducedThe thickness of LED screen notebook panel is about 1 / 2 of that of common CCFL screen.
the thickness of LED screen notebook panel is about 1 / 2 of that of common CCFL screen2、 It has longer service life.
lower power consumption and more environmental protectionThe service life of LED is as long as 100000 hours.
even if the LED is used continuously for 10 hours every day, it can be used continuously for 27 years.
after using the LED backlight system.
the energy consumption can be greatly reduced, and it can save 48% power compared with the common CCFL LCD.
moreover, the LED does not use mercury, which is harmful to the environment.
it is quite environmentally friendly, and CCFL contains mercury.
in this paper, the application of the LED backlight system is introduced3、 The color performance of LED backlight screen is much better than that of CCFL.
the color performance of LED backlight screen is much better than that of CCFLThe original CCFL backlight is not as good as CRT in terms of gray scale and color transition due to color purity and other problems.
according to the test,
using CCFL backlight can only achieve 78% of NTSC color region, while LED backlight can easily obtain 100% of NTSC color region.
LED backlight also has significant advantages in terms of color expressiveness and color transition.
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the color level transition of LED backlight is also significant
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