What's the difference between LCD and led
Author:Wang Weifeng Time:2021-07-22 13:32 Browse(129)
The main reason is that the backlight of the LCD panel is different: CCFL (that is, LCD) is a cold fluorescent tube (the driving circuit is complex, the picture light and dark control and contrast is slightly poor), and LED is a white LED (the driving circuit is simple, the contrast is high, and the picture dark control is good). LED backlight is the development direction of high-end LCD TV
The main reason is that the backlight of the LCD panel is different: CCFL (that is, LCD) is a cold fluorescent tube (the driving circuit is complex, the picture light and dark control and contrast is slightly poor), and LED is a white LED (the driving circuit is simple, the contrast is high, and the picture dark control is good). LED backlight is the development direction of high-end LCD TV. LCD is the liquid crystal panel, now the LED refers to the use of light-emitting diode as the backlight of the liquid crystal panel. Compared with the traditional cold cathode fluorescent tube backlight, LED backlight has five advantages: first, it has an ultra wide color gamut, which can reach 105% ntse color gamut, so the color is more bright. 2、 Ultra thin appearance, the thinnest up to 1.99cm, more fashionable. 3、 Energy saving and environmental protection, energy consumption is 52% lower than cold cathode backlight, and there is no mercury pollution of cold cathode tube. 4、 It has a long service life of nearly 100000 hours, and can be used for 27 years if it is opened for 10 hours every day. 5、 It can achieve 100000:1 ultra-high contrast and higher definition. The above performance advantages determine that the LED backlight is technically a substitute for the cold cathode backlight, and the current market price is basically 150% of the cold cathode backlight products. LED backlight itself has no choice, the main choice for the whole machine is the choice of technical performance parameters of LCD panel, such as the maximum physical resolution, dynamic response time, etc., which is the same as ordinary LCD TV..

What's the difference between LCD and led

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