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Although the product purchase and display principle are not the same, liquid crystal display (LCD) and traditional displays (CRT) of common purpose is to show excellent results. Now we on CRT and LCD TFT as comparison. Structure and the volume of the product: the traditional CRT display must be by an electron gun emitting electron beam to the screen, and kinescope tube can not be too short, when the screen is increased to increase the volume, TFT is through the display on the electronic board to change molecular state, so as to achieve the purpose of displaying the, even if the screen is increased, it is only the horizontal area increase can be, while the volume is not increased greatly, and a lot less than CRT monitors and TFT due to power consumption is only used for panel and driving IC and consumption power is smaller. Radiation and electromagnetic interference: the traditional display due to the use of electron guns to emit electron beam hit the screen to produce radiation source. Although there are some advanced technologies can be reduced to a minimum, but still can not be completely eradicated. TFT liquid crystal display does not have to worry about this point. As for the electromagnetic wave interference, TFT LCD only from the driving circuit of a small amount of electromagnetic waves, as long as the shell sealed tightly to electromagnetic wave is not compromised, and CRT display to the heat had to on the body hit radiating holes, so will produce electromagnetic interference. Flat screen and resolution: TFT LCD to start using the pure plane glass plate, so flatness to much better than most of the CRT display. Of course, there are pure flat CRT display. In the resolution, TFT is far less than the CRT, although from theoretically speaking, it can provide higher resolution, but that is not the case. Effect: the traditional CRT display is by an electron gun against the brightness of the fluorescent powder so that the display is much better than the transparent type liquid crystal, on the viewing angle of the CRT to better than TFT display reflect speed, CRT and TFT-LCD is almost the same. |
