Curved screen
The presence of
a curved screen in the monitor design.
Such a screen has the left and right edges curved forward - it is believed that this shape significantly improves perception compared to a flat surface. At the same time, it makes sense to provide this feature only on fairly large diagonals - at least 30"; therefore, it is typical mainly for high-end models. It is also worth noting that in order to take advantage of all the advantages of a curved screen, you need to look at it from a certain point - at the optimal distance, strictly in the center; however, for computer monitors this is usually not a problem.
The main parameter of a curved screen is the radius of curvature. It is indicated in millimeters along the radius of a circle, the bend of which corresponds to the bend of the monitor: for example, the designation 1800R indicates a radius of 1.8 m.
The smaller the number in this designation, the more curved the screen (all other things being equal). At the same time, some manufacturers claim that the ideal curvature value is 1000R: supposedly, it is with this curvature of the screen that the image on it turns out to be as close as possible to a person’s natural field of vision, and the closer the curvature of the monitor is to 1000R, the better the viewing experience. However, in practice a lot depends on personal preference; and when viewed from a long distance (exceeding the radius of curvature by one a
...nd a half times or more), all the advantages of a curved screen are lost.Response time (GtG)
The time each individual pixel on the monitor takes to switch from one state to another. The
lower the response time, the faster the matrix responds to the control signal, resulting in less delay and better image quality in dynamic scenes.
Note that in this case, the gray-to-gray method is used (the time it takes to switch from 10% gray to 90% gray). Pay attention to this parameter if the monitor is specifically purchased for fast-paced games, movie watching, or other applications involving quick screen movements. However, there’s no need to chase the fastest models. It’s not often possible to discern the difference between
1 ms and
5 ms. For most scenarios,
monitors with a 4 ms response time will suffice. In any case, it’s best to rely on live impressions for a true comparison.
Brightness
The maximum brightness provided by the monitor screen.
Choosing
a monitor with high brightness is especially important if the device is going to be used in bright ambient light — for example, if the workplace is exposed to sunlight. A dim image can be "dampened" by such lighting, making work uncomfortable. In other conditions, the high brightness of the screen is very tiring for the eyes.
Most modern monitors give out about 200 – 400 cd / m2 — this is usually quite enough even in the sun. However, there are also higher values: for example, in LCD panels (see "Type") the brightness can reach several thousand cd/m2. This is necessary taking into account the specifics of such devices — the image must be clearly visible from a long distance.
Static contrast
Static contrast provided by the monitor screen.
This value describes the difference between the brightest whites and darkest blacks that the screen is capable of producing. In this case, unlike dynamic contrast (see below), the difference is indicated on the condition that the brightness of the screen backlight remains unchanged. In other words, this is the contrast that is guaranteed to be achievable within one frame. Static contrast is inevitably lower than dynamic. However, it is she who describes the basic capabilities of the screen.
The minimum static contrast ratio for tolerable image quality is considered to be 250:1, but even the most modest modern monitors give out about 400:1 (and a value of
1000:1 is not the highest class), and in high-end models this figure can reach 2000:1 and even more. .
Colour space (sRGB)
Monitor colour gamut Rec. 709 or sRGB.
Any colour gamut is indicated as a percentage, however, not relative to the entire variety of visible colours, but relative to the conditional colour space (colour model). This is due to the fact that no modern screen is able to display all the colours visible to humans. However, the larger the colour gamut, the wider the monitor's capabilities, the better its colour reproduction.
Nowadays, sRGB is actually the standard color model adopted for computer technology; This is what is used in the development and production of most video cards. For television, the Rec. standard, similar in parameters, is used. 709. In terms of the range of colors, these models are identical, and the percentage of coverage for them is the same. In the most advanced monitors it can
reach or even exceed 100%; These are the values that are considered necessary for high-end screens, incl. professional.
Colour space (Adobe RGB)
Monitor colour gamut based on the Adobe RGB colour model.
Any colour gamut is indicated as a percentage, however, not relative to the entire variety of visible colours, but relative to the conditional colour space (colour model). This is due to the fact that no modern screen is able to display all the colours visible to humans. However, the larger the colour gamut, the wider the monitor's capabilities, the better its colour reproduction.
Specifically, the Adobe RGB colour model was originally developed for use in printing; the range of colours covered by it corresponds to the capabilities of professional printing equipment. Accordingly, support for this model and its extensive colour gamut are important, first of all, if the monitor is used in the design and layout of high-quality printed products. In the most advanced screens, this figure can be
99% or even more. At the same time, we note that Adobe RGB is wider than the popular sRGB, and the percentage figures for this model are smaller: for example, 99% in RGB often gives only about 87% in Adobe RGB.
Colour gamut (DCI-P3)
The color gamut of the monitor according to the DCI P3 color model.
Any color gamut is indicated in percentages, but not relative to the entire variety of visible colors, rather relative to a conventional color space (color model). This is because no modern screen can display all the colors visible to the human eye. Nevertheless, the larger the color gamut, the broader the monitor's capabilities, and the better its color reproduction quality.
DCI P3 is a professional color model mainly used in digital cinemas. It is significantly broader than the standard sRGB, providing more accurate and high-quality colors. Accordingly, the percentage values are lower—for example, 115% coverage in sRGB corresponds to approximately 90% coverage in DCI P3; in the most advanced modern monitors, coverage according to this standard is
98 – 100%. At the same time, supporting DCI-P3 is costly, which is why it is mainly found in high-end monitors for professional and gaming purposes.
Power Delivery
The presence of at least one USB C connector in the monitor with support for
Power Delivery technology.
Such ports are capable of delivering increased power to the connected device - up to 100 W in earlier revisions and up to 240 W in the latest editions (from PD 3.1 and later). At the same time, video and data transmission can be provided over the same cable. Thanks to Power Delivery support, you can use just one cable to connect your monitor to your laptop, reducing the number of wires in your workplace. The technology is also used to provide fast charging of third-party devices (smartphones, tablets and even some cameras).
Charger power
The power that a USB-C connector with Power Delivery fast charging technology can pass through. Accordingly, the ability to power connected devices, in particular laptops, which need at least 60 watts, depends on this value. Therefore, to use USB-C not only for video transmission, but also for powering the connected gadget, make sure that the necessary power is supplied. An important point is that not all monitors allow simultaneous transmission of video and power at maximum power, therefore, this paragraph indicates the maximum power value in power transmission only mode.