The difference between LCD screen and LED screen
Author:Liu Yaqi Time:2021-06-07 15:44 Browse(255)
LED has long life and power saving, but its definition is not as good as that of LCD, and its color reduction is not as good as that of LCD. But it's not visible to the naked eye.
LED has long life and power saving, but its definition is not as good as that of LCD, and its color reduction is not as good as that of LCD. But I can't see it with the naked eye.. Hello! At present, the biggest difference between LED LCD and ordinary LCD on the market is the "backlight" used. Ordinary LCD uses CCFL (cold cathode fluorescent lamp) as light source. LED LCD uses LED as 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 reduced.The thickness of LED screen notebook panel is about 1 / 2 of that of common CCFL screen.2、 It has longer life, lower power consumption and more environmental protection.The service life of LED is up to 100000 hours, even if it is used continuously for 10 hours every day, it can be used continuously for 27 years. After using LED backlight system, the energy consumption can be greatly reduced, which is 48% less than that of CCFL LCD. Moreover, LED does not use mercury, which is harmful to the environment, so it is quite environmentally friendly, while CCFL contains mercury.3、 The color performance of LED backlight screen is much better than that of CCFL.Due to the color purity and other problems, the original CCFL backlight does not perform well in the aspect of color scale, which leads to the LCD is inferior to CRT in the aspect of gray and color transition. According to the test, CCFL backlight can only achieve 78% of NTSC color area, while LED backlight can easily achieve 100% of NTSC color area. In terms of color expressiveness and color scale transition, LED backlight also has significant advantages..
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