What is the difference between the TN screen, VA screen and IPS screen of the LCD panel?

Among many types of LCD panels, TN liquid crystal panels are widely used, but some professionals have a special liking for VA and IPS. So what is the difference between TN screen and VA and IPS of LCD panel?

The low-cut cost TN liquid crystal panel makes the liquid crystal display quickly popular. However, due to the high color requirements of some users on the liquid crystal display, they sneered at the TN liquid crystal display, and considered the TN liquid crystal panel and VA and IPS materials. The difference in LCD panel performance is not a grade. So, is the truth really true? Below, we will elaborate on some of the misunderstandings that occurred during our discussion. I hope that everyone will understand more about LCD panel differentiation.

The most important difference between the TN screen of the LCD panel and the VA and IPS is the difference in color.

The TN panel itself can only display 16.2M colors, and can't really display 16.7M colors. Only the VA or IPS panel can actually display the color of 16.7M color.

For this point of view, we can think that it is correct or that it is wrong. Why do you say that? The reason for thinking that it is correct is based on the physical material structure of the liquid crystal panel: from the physical structure of the TN material liquid crystal panel, it can only display 16.2M color at most; and from the VA or IPS panel material liquid crystal panel itself, they are The color of 16.7M color can be displayed completely.

The friend who thinks this view is wrong is because "TN panel can't really display 16.7M color". They think that the key factor determining color is not the panel type, but the driver IC.

The principle of liquid crystal display color is that there are three filter strips respectively transmitting red, green and blue light corresponding to each pixel point on the backlight board, and each strip has an independent circuit driving corresponding position at each strip. The liquid crystal molecules rotate, so that the red, green and blue light of different brightness are mixed, so that the human eye can feel various colors.

When the voltage is applied, the high corner is large, and the voltage is increased by a low angle, which is stepless adjustment. The driving voltage can be made to display n-bit color from the highest to the lowest 2n parts. Therefore, they believe that there is no such thing as a board that supports only a few bits. It is the best problem to add only a few bits of drive color to any LCD panel.

That is to say, regardless of the TN or wide viewing angle panel, if 6biTIC is loaded, its color number is 16.2M (dithered processing), and if 8biTIC is loaded, the color number is 16.7M.

Discussing the color difference between this 16.2M color and 16.7M color, what is the difference between the TN material and the VA or IPS LCD panel in terms of color display?

In fact, the biggest difference between the TN panel and the VA or IPS panel is the color decay caused by the different viewing angles.

Summary: From the above comparison, we can already see the difference between the TN screen of the LCD panel and the VA and IPS. In fact, no matter what type of LCD panel, as long as you feel comfortable, there is no need to pursue High quality LCD panel.

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