Before we understand what the screen refresh rate is, we must first understand a concept: gray response time, which is the time required for the liquid crystal to change from one gray level to another. Generally, the display panel in the LED TV that we are talking about is composed of a glass substrate with a TFT array liquid crystal and an LED liquid crystal backlight assembly. The two components are actually independent, and the TFT liquid crystal itself does not emit light. The above means that the light emitting device of the backlight uses an LED.
Therefore, in order to achieve a high refresh rate, the response time of the liquid crystal must be sufficiently fast. The gray scale response time is exactly what determines the response speed characteristics of the display panel. The true 120Hz TV, the real 120Hz refresh rate must be: every second, with a TFT array can receive 120 independent 1080P effective image signals, and by applying an electric field to the liquid crystal, change the liquid crystal transmittance, the 120 Field independent images are completely and accurately refreshed.
In fact, at present, most LCD TVs in the world have a refresh rate of 60 Hz in 2D mode. The refresh rate of 120Hz in the 2D mode is virtually invisible to the midrange. According to information from the world's top panel makers, the true maximum refresh rate of the mass-produced TVs that have actually been put on the market so far is only 240 Hz, and the real 240 Hz models belong to very high-end models. Not easy to see.
Therefore, in order to achieve a high refresh rate, the response time of the liquid crystal must be sufficiently fast. The gray scale response time is exactly what determines the response speed characteristics of the display panel. The true 120Hz TV, the real 120Hz refresh rate must be: every second, with a TFT array can receive 120 independent 1080P effective image signals, and by applying an electric field to the liquid crystal, change the liquid crystal transmittance, the 120 Field independent images are completely and accurately refreshed.
In fact, at present, most LCD TVs in the world have a refresh rate of 60 Hz in 2D mode. The refresh rate of 120Hz in the 2D mode is virtually invisible to the midrange. According to information from the world's top panel makers, the true maximum refresh rate of the mass-produced TVs that have actually been put on the market so far is only 240 Hz, and the real 240 Hz models belong to very high-end models. Not easy to see.
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