Polyvinyl alcohol and MVA are derivatives of VA panel. Click to view: which is better, VA soft screen or IPS hard screen? The contrast TN of all LCD panels on the market is the most common, which is used for general displays. Color can only be said to be sufficient for household use, with low price and high market share.
PVA is the general name of Samsung panel. Compared with TN, it is a parameter of color saturation, which is warmer and has a larger viewing angle. It can be divided into low-end C-PVA and high-end S-PVA.
IPS is the general name of LG panel. There are three types, E-IPS, S-IPS and H-IPS. At present, there is basically no S-IPS. Low-end E-IPS and high-end H-IPS are generally cold in color, quick in response and hard in screen, which are suitable for playing games.
MVA is a Japanese panel technology. Compared with PVA, MVA has the advantages of blackness and increased contrast. Think of it as a sharp panel. Of course it has nothing to do with Sharp. This kind of panel is generally rare and the price is not cheap.
Generally, the price of C-PVA and E-IPS products does not exceed 1500. If this kind of display is called IPS or PVA low-end panel, its advantages are larger viewing angle and better overall color, while others are not much better than TN. But the high-end ones are different, and the overall effect is much better than TN. Of course, buying 2-3 TN monitors is not a problem.
It depends on your needs. Buy high-end ones if you are demanding, and ordinary E-IP is enough for home use.
Let's take a look at the differences between TN, IPS, C-PVA, PLS and LCD matrix pixels of low-priced IPS panels.
Liquid crystal molecular pixel structure of TN panel (maximum brightness)
The above picture shows the liquid crystal molecular pixel structure of a common TN panel at the maximum brightness. It can be seen that the lower end of each RGB sub-pixel is not completely perpendicular to the side, but has a certain angle, but the sub-pixel itself is very "complete". When the brightness of TN panel decreases, its overall brightness will also decrease, but each sub-pixel is still intact.
Liquid crystal molecular pixel structure of S-PVA panel (high brightness)
Compared with TN panel, there is a "dividing line" in the middle of each sub-pixel of S-PVA LCD panel, and these dividing lines appear in a symmetrical way.
Liquid crystal molecular pixel structure of S-PVA panel (low brightness)
From the above picture, we can see that when the brightness decreases, the middle of the pixel will darken or even go out first, and only the two ends will emit light, which is also the uniqueness of PVA panel.
Liquid crystal molecular pixel structure of low-priced IPS panel
The above picture shows the molecular pixel structure of the LCD panel of Dell U23 1 1H LCD, which uses low-cost IPS panel. Because Dell U23 1 1H uses reflective coating, the above picture is not very clear. However, we can see that, similar to PVA panel, the two halves of each sub-pixel are slightly diagonal, but the difference is that when the brightness of the screen decreases, the brightness of the refracted light of the whole molecule will decrease, instead of the phenomenon that the middle darkens and the brightness at both ends is basically unchanged like PVA panel.
PLS panel liquid crystal molecular pixel structure
The screen surface of Samsung S27A850D is also coated with reflective coating, so the above picture is actually not as clear as the previous one.
However, we can still see that the molecular structure of PLS panel is very close to the low-priced IPS panel in the above picture, but it is completely different from its cousin PVA. In addition, when its brightness is reduced, the whole pixel is completely reduced like IPS liquid crystal, and there is no middle break. Therefore, we can see that PLS panel is closer to IPS panel, and it is not the same type and characteristic as the previous PVA panel.
I hope the above information is helpful to you.