Is the TV screen LED or LCD?
Author:Du Sheng Time:2021-10-08 14:37 Browse(979)
Whether it is led tv or LCD TV, their screen itself is LCD (liquid crystal), the real LED display is difficult to use in the field of home TV, because its pixel is too large, it is difficult to miniaturize in the case of high resolution. Nowadays, the dynamic billboards of many stores are led dot matrix screens. In the TV industry, LCD TV is divided into LED TV (using LED backlight module to provide light source for screen) and traditional LCD TV (using CCFL cold cathode fluorescent tube as light source) due to different backlight systems. In contrast, LED can easily achieve regional adjustment (to a certain extent, it can solve the problem of LCD light leakage, but it can only alleviate/
Whether it is led tv or LCD TV, their screen itself is LCD (liquid crystal), the real LED display is difficult to use in the field of home TV, because its pixel is too large, it is difficult to miniaturize in the case of high resolution. Nowadays, the dynamic billboards of many stores are led dot matrix screens. In the TV industry, LCD TV is divided into LED TV (using LED backlight module to provide light source for screen) and traditional LCD TV (using CCFL cold cathode fluorescent tube as light source) due to different backlight systems. In contrast, LED can easily achieve regional adjustment (it can solve the problem of LCD light leakage to a certain extent, but it can only alleviate the problem. In theory, it is almost impossible to achieve the contrast of traditional CRT TV), and it has a longer service life (CCFL tube works for a few years, it will appear the phenomenon of brightness decline or difficult to start, so it needs to be replaced. Although the cost of CCFL is not high, it's only about 10 yuan, but the maintenance personnel will definitely offer a high price to replace it for you), the working voltage is lower (the LED can work at 2V ~ 4V, and the CCFL tube needs nearly 1200V high voltage to start, so it needs to use a special inverter circuit to provide high voltage. Inverter circuit is easy to break down No pollution (CCFL tube contains mercury), power saving, small size and other characteristics, so in the choice of TV or choose to use LED as the backlight of LCD TV.. The most obvious difference between the two is that the working mode of backlight is different. LCD uses the traditional CCFL lamp, just like the type of fluorescent lamp at home, while LED uses the latest highlight of LED lamp. Compared with LCD, LED is more power-saving, because it uses LED lamp, which consumes less power. The other is that led is thinner than LCD. So the mainstream behind should be led.

Is the TV screen LED or LCD?

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