Is the TV screen good for the LCD or the LCD?
Although the cost of CCFL is not high, it is about ten yuan, but the maintenance staff will certainly open a high price to help you ), The operating voltage is lower (LED in 2V ~ 4V can work, and CCFL tube needs nearly 1200V high voltage to start, so need to use a special inverter circuit to provide high voltage. Inverter circuit is easy to bad.
In contrast, LED can easily do the regional regulation (which can be a certain degree of LCD light leakage problems, but can only be mitigated, theoretically almost impossible to achieve the traditional CRT CRT TV contrast), and life Longer (CCFL tube work for a few years there will be a decline in brightness or start the difficult phenomenon, need to be replaced.
In the television industry, LCD TV is divided into LED TV (depending on the backlight system) (using LED backlight module for the screen to provide light) and the traditional LCD TV (using CCFL cold cathode fluorescent tube light source).
Whether it is LED TV or LCD TV, their screen itself is LCD (LCD), the real LED display is difficult to use in the field of home TV, because its pixel is too large, high-resolution case is difficult The Now many of the store's dynamic billboard is LED dot matrix screen.
