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Bandwidth is a very important parameter of the display, it can determine the performance of the display. The so-called bandwidth is the abbreviation for the passband width of the display video amplifier.customized lcdThe bandwidth of the circuit actually reflects the response speed of the circuit to the input signal and the resolution of the display. The wider the bandwidth, the smaller the inertia, the faster the response speed, the higher the allowable signal frequency, and the smaller the signal distortion. The unit of bandwidth is MHz, and its value can be calculated using the formula "horizontal resolution × vertical resolution × refresh rate".




The refresh rate of the display is divided into vertical refresh rate and horizontal refresh rate. The unit of the vertical scan frequency is MHz, which is determined by the horizontal refresh rate and screen resolution. The vertical refresh rate indicates the number of times the screen image is redrawn per second, that is, the number of times the screen is refreshed per second. Called Horizontai scanning frequency, it refers to the number of times the display scans horizontal lines per second, in kHz.




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