Which monitor is right for you? Turns out that’s the truth about curved monitors
Curved is better for the human eye? The prerequisites make you stunned
One of the highlights of the curved display is the curved viewing angle that is more suitable for the eye
In various publicity, evaluation, and technical analysis articles, it is almost mentioned that the curved display is more in line with the human eye, which is a spherical surface, because of its curved surface design, so that the distance from each point on the screen to the retina is the same. equal. From a theoretical point of view, there seems to be no problem with this principle. Junior high school students understand the imaging of convex lenses.
However, we have overlooked a problem. To achieve the same distance from each pixel on the curved display to the retina, you have to ensure that your eyeball is located at the center of the circle where the curved surface of the curved display is located (or try to near the center of the circle), where is the center of the circle? This is actually determined by the curvature of the curved display. For example, the curvature of a curved display is 2000R, which means that the center of the circle is 2 meters perpendicular to the center of the display.
Well, taking the larger 34-inch curved monitor as an example, the curvature of different products varies from 1800R to 3000R, which means that you have to sit at least 1.8 meters away from the monitor (2000R). It is 2 meters, 3000R is 3 meters), in order to achieve the so-called “point-to-point isometric” vision. Not to mention that most 34-inch monitors have a resolution of more than 2K. I am afraid that at this distance, even with 1080P resolution, you can’t read the words on the screen clearly. We haven’t considered whether your desk is so big. Not to mention the smaller size of the curved display (the curvature value will not be lower than 1800R), this distance is even more difficult to see. In addition, to be strictly speaking, the curved display only achieves the “point-to-point isometric” vision on the horizontal line. Our eyeballs are spherical. If we really want to have complete “point-to-point isometric” vision, the curved display is not enough, and the concave spherical surface is required. monitor.
Of course, there is another point that cannot be ignored. Even if the curved display fully realizes the “point-to-point equidistant” vision, the human eye cannot see every pixel on the screen at the same time (human eyes under strong light. The minimum equivalent aperture value is only 8.3), and switching the focus point still has to refocus, which is no different from looking at a flat-panel monitor.
Small is not enough to bend, big is too expensive, and the resolution with fish screen is too alternative
Even if it is 1800R curvature, if the display size is too small, the curvature is not obvious enough
Even if the author has already said that the so-called ergonomic theory of curved display is only one-sided propaganda, you still like it The special visual effect brought by the curved surface is no problem, but there are still requirements when selecting it, otherwise it will not give you a clear visual experience of the curved surface.
As can be seen from the picture, taking the 23.6-inch monitor and the normal use distance (0.7m) as an example, the angle of view between the flat monitor and the curved monitor at this distance is actually similar, even if it is 1800R With such a relatively large curvature, the included angle is not much different, because the size of the display is too small, and the width is less than 1/20 of the circumference of the circle where the arc is located (you find a circle yourself, and cut a circle on it with only 1/20 of the circumference. The arc, to see if the curvature is obvious), such a little sense of bending does not bring about an immersive experience.
How to achieve a satisfactory degree of curvature? Very simple, choose a curved display with a large enough size. Under the same curvature, the larger the size of the display, the larger the proportion of the horizontal direction to the circumference of the circumference, and the more obvious the natural curvature. The 21:9 “fish screen” display of the same size is wider than the 16:9 ordinary display, so the curved display of this ratio has a greater curvature.
However, even if the bigger curved monitor looks more curved, the 2000R, 35″ 21:9 curved monitor you can buy has a width (about 0.84m) that is only the circumference of the arc. It’s a little more than 6% long… So, you have to buy several large-sized curved monitors to splicing them together to create a surround viewing angle effect. Of course, this cost is only a small amount of tens of thousands of yuan to buy a monitor (a 34-35-inch curved monitor should start at 4,000 yuan), and the cost of a study or living room that can accommodate so many monitors is a big one.
In addition, there is a very specific problem. The resolution of the curved monitor with fish screen is 21:9. In some applications and games that only support 16:9, there will be compatibility problems. It will be squashed, but the curved display without the fish screen is not sufficiently curved, which is indeed a dilemma.
The manufacturer won’t tell you about the insufficiency of the surface
Picture distortion caused by curved surfaces is unavoidable, so it is not suitable for precise design work
Light leakage is more difficult to control
We know that for LCD For monitors, if the light leakage control is not good, the black screen performance will be greatly reduced, and key indicators such as static contrast and brightness uniformity will also be affected. At present, various optical components of the LCD backlight unit are designed and optimized for the flat structure. In order to achieve the curved surface effect, the manufacturer needs to forcibly “bend” these components, and the light leakage is naturally more difficult to control. In fact, the situation of light leakage of curved displays in the market can be seen by everyone when they go to the store. The author does not need to say more.
Of course, the use of optical components specially designed and optimized for curved display can indeed avoid or improve such problems, but the cost and market risk of doing so are beyond the affordability of upstream and downstream manufacturers, so this It is unknown when and whether the components will appear.
Brightness, color, and clarity are affected
In addition to the light leakage caused by the “bending” of the optical components, the LCD panel itself is “bent” It will also affect the picture quality. The physical and optical properties of the glass after bending change. On the one hand, the screen itself becomes fragile, and on the other hand, the TFT thin film transistor attached to the glass is displaced under the action of stress, and the displacement of the area with greater stress is more obvious. There will be a phenomenon such as edge blurring. At the same time, the liquid crystal molecules poured into the glass substrate will also be deformed and unevenly arranged due to the stress, which will affect the brightness, color and clarity of the screen.
In addition, after the screen is forcibly bent, the optical and electrical properties of the panel also change, which affects the deflection speed of the liquid crystal molecules, and the dynamic response speed of different areas on the screen may even be inconsistent. For demanding esports players or gaming enthusiasts, this impact may be unacceptable.
The picture is geometrically distorted and cannot be used for design
Let’s not talk about graphic design, even if you adjust a distorted photo on a curved display, Also enough to break you down. You’ll find that no matter how you tune it, it’s not what you see is what you get. The reason is very simple, just because the monitor you are staring at is curved, and it is deformed, so how can it be adjusted accurately. For professional CAD designs that require more precision, such visual errors are absolutely intolerable.
Therefore, when designing, you must never use a curved display. This is not a matter of preference.
Write at the end: Treat rationally, choose as needed
In fact, I do not exclude curved monitors. If funds allow, buy several curved monitors To set up a surround vision system is also a special entertainment experience. However, for users with serious application needs (such as gaming and graphic design applications that require accurate display), the characteristics of curved displays have determined that it is not a suitable choice. In addition, if your funds are limited, it is not a good idea to invest more budget in curved design. At this time, it is better to give up the curved surface and move to a flat display with a more advanced panel or a larger size and better function, which is practical The value is even higher. [Pros and cons of curved TV>>]
