The perception of dynamic images by human visual organs (eyes) is known as "visual residue", where high-speed moving images form brief impressions in the human brain. Early cartoons, movies, and even the latest game programs today applied the principle of "visual residue" to quickly and continuously display a series of gradient images in front of people, forming dynamic images.
When the speed of multiple images exceeds 24 frames per second, the human eye will feel a continuous image. This is also the origin of the movie's playback speed of 24 frames per second. If the display speed is below this standard, people will clearly feel pauses and discomfort in the picture. According to this indicator, the display time for each screen needs to be less than 40ms. High definition display of fast moving images, with a general motion speed exceeding 60 frames per second. This means that the interval time between each frame of the active screen is 16.67ms.
If the response time of the LCD is greater than the interval time between each frame of the image, people will feel that the image is somewhat blurry when watching fast-moving images. Response time is a special indicator of LCD. The response time of LCD refers to the speed at which each pixel of the display responds to the input signal, which is the reaction time of the LCD from "dark to bright" or from "bright to dark". The smaller the value, the better. A fast enough response time is necessary to ensure the coherence of the image. If the response time is too long, it may cause the LCD to have a trailing effect when displaying dynamic images. The general response time of LCD is 2-5ms.
