Today we will look at the monitor ST2421L from Dell from the year 2010. Within this article, we will first take a closer look at the most important feature of a monitor -the display-, then the design, and in the next section we will go into the features of the monitor. Of course, power consumption, certifications, connectivity and other important details will also be considered.
Display
Texts, videos and/or other applications can be displayed on the 24 inches ( 60.9 cm on the diagonal) of the monitor. As already known, two monitors with different outer dimensions can have the same screen diagonal. In the case of the monitor ST2421L , we find an aspect ratio of 1.778 to 1. This means that for every 1 pixels in height, 1.778 pixels in width are added. For comparison: A classic CRT monitor had an aspect ratio of 4:3. Around 77.5 % of the front surface of the monitor consists of the display, while the rest is made up of screen edges that cannot display images. If you want to place several monitors next to each other, it is advisable to prefer those with narrow edges. The display is a TN panel. The panel has a resolution of 1920 x 1080 px. The pixel density is 91 ppi. The pixel pitch is 0.277 mm. The continuous possible brightness specified by the manufacturer Dell is 250 nt. The panel is illuminated by W-LED. The built-in panel ensures stable color reproduction of the image, even at deviating viewing angles, by means of its 170 ° (horizontal) viewing angle. Dell promises stable color reproduction moreover within a 160 ° vertical angle. The refresh rate is horizontally seen at the ST2421L 30 khz to 83 khz. Vertically, however, the image renews at a minimum rate of 56 hz up to 76 hz. The minimum response time of the monitor is ms. The display panel is Anti-glare/Matte (3H).
Color space
The panel has a bit depth of 8 per color channel, but what does that mean? The number of bits determines how many colors can be encoded for the individual pixels of the display. For an 8-bit panel, for example, this is 256 different colors (2^8 = 256). However, since we usually display three different colors per pixel at the same time, in theory about 16 million (256^3) different colors are possible by mixing the three pixels. A 10-bit panel could even display a billion colors.
Contrast ratio
Contrast ratio is a common measurement used to represent the maximum relative differences in brightness between black and white. It describes the ability of a screen or projector to produce a high-contrast image and is the quotient of the maximum and minimum displayable luminance. The higher the values are away from each other, the stronger the quantitatively seen difference between black and white is set up, which in turn results in an improved image quality. This monitor from Dell has a static contrast ratio of 1000 : 1 , according to the manufacturer. In contrast to the static contrast ratio, the dynamic contrast ratio changes the brightness of the panel itself in addition to the difference measurement from black to white. In addition to the difference between the brightest and the darkest pixel, the backlight is thus changed. Since the brightness of the panel may not be able to be adjusted exactly to a single pixel, a so-called halo effect is possible. The value of 7000000 : 1 of dynamic contrast ratio for the monitor ST2421L cannot provide any information about the severity of the halo effect here. Therefore, it is more useful to compare the static contrast ratio.
HDR
The monitor supports all HDR modes listed here:
screen design
Without the stand, the monitor comes with a width of 57.4 cm , a height of 35.6 cm and about 5.9 cm.
The size of the ST2421L on the desk is likely to be particularly relevant for most users. Dell specifies a space requirement of 41.8 x 57.4 x 20.3 cm (HxWxD) with the included stand. The device weighs 4.29 kg with the stand in place. The monitor ST2421L without the stand weighs 3.65 kg. This weight reduction should be taken into account for wall or arm mounting, since monitor arms have a maximum load capacity.
Rotate, tilt and swivel
The monitor from Dell cannot be rotated. The monitor cannot be swiveled. This feature could be retrofitted with a third-party stand. The monitor ST2421L can be tilted. The angle of inclination to the rear is 21. The monitor can be tilted forward by 4 degree.
Ports
The monitor can be connected via 1 VGA ports.
camera
This monitor does not have a camera.
Loudspeaker
Features
WiFi / Bluetooth
Power consumption
The average consumption was given by Dell as 20 w. The maximum power consumption (peak) specified for this monitor is 30 w. In standby mode, the device consumes approximately 1 w. When switched off, on the other hand, the monitor consumes only 0.5 w. The monitor can be operated on a 110v power supply. The monitor can be operated on a 220v power supply. There are 2 amps specified. The power grid has to supply a frequency of 50 hz to 60 hz.
Environment
The maximum height at which the monitor may be operated, according to the manufacturer's specifications, is 3.657 km. The maximum permissible ambient temperature is 40 °C during operation. Below a temperature of 0 °C , the monitor from Dell should again not be used. The humidity must not exceed 80 percent. At least, however, 10 percent humidity. The monitor may be stored at a maximum humidity of 90 percent. The minimum humidity during storage should not fall below 5 percent. The maximum storage temperature should be according to Dell 60 °C. Minimal were given by Dell -20 °C. According to the manufacturer, the monitor may be stored at a maximum height of 12.192 km.
Packaging
Additional information