All about monitors , flat screens

The monitor is the computer screen.

It is an output device that allows the display of information by the user and it is characterized by the following:
- The size usually expressed in inches (symbol: “).
The inch is a unit of measurement equal to 2.54 cm. The measure is the diagonal of the screen.
Currently screen sizes is in the range of 17-30 inches.

Correlation table Inch / centimeter (/ cm)

14 “= 36cm I 21″ = 53cm

15 “= 38cm I 22″ = 56cm

17 “= 43cm I 24″ = 61cm

19 “= 48cm I 27″ = 68cm

20 “= 51cm I 30″ = 76cm

- The format of the screen

The different sizes are 4 / 3, 5 / 4 and 16/10. The format 4 / 3 is the original format televisions. This is the technology of the CRT that did not allow other formats. Now with the flat screens that limit does no longer exist . This is why existing displays are becoming more and more of  16/10 format because it corresponds more to the cinema format.

Resolution
This is the number of different pixels (dots) that the screen is able to display. The first number coorespond the total number of pixels in a horizontal line and the second the total number of pixels in a vertical line. It is strongly advisable to use the monitor in its original resolution. Otherwise the display image or text will be blurred.The resolutions are optimal for sizes 4 / 3 of 1280×1024 and 1680×1050 for the 16/10.

Transforming the connection into DVI or VGA
The VGA is analog while DVI is digital. Monitors and the upscale facilities has the DVI format. However, some monitors have this function but are not supplied with the  coorespondant cable and its cost is not at all negligible.

SMALL-SCALE
The display time in milliseconds (ms).

All existing displays offer an interesting view comfort. This parameter may have other significance for some diligent players. The sets of video games can move very quickly, the speed of display of information can then be important. This may be interesting if you buy a used monitor , but for the new monitors, they all now have a correct display time.

The contrast in the report (1:1000).
The contrast is the ratio between the maximum brightness and darkness. For visual comfort and to avoid eye fatigue , the user should set this parameter way below the capabilities of the monitor. The brightness is expressed in candela per square meter (500cd / m²). it should be set the same as for the contrast.

PARTICULARITY
- There are also screens called tactile that allow the user to press the surface of the monitor to transmit commands to the computer. These touch screens are reserved for some very specific uses such as information kiosks in public places or entry screens in shops or restaurants .

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