What is the difference between LED LCD and ordinary LCD
Author:toot toot Time:2021-07-13 17:55 Browse(217)
Hello!At present, the biggest difference between LED LCD and ordinary LCD on the market lies in the difference of "backlight".Common LCD uses CCFL (cold cathode fluorescent lamp) as light source.LED LCD screen 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 ordinary 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, 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 gray scale 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.. The resolution is higher than the ordinary, the definition is higher than the ordinary, and the picture quality is better.
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