Lcd Monitors Computer

LCD monitors are now available at reasonable prices in 19, 20, 22 inches diagonal or more. However, the quality is not always optimal. The criteria put forward by the manufacturers are not necessarily those to which we should pay most attention when making your choice. The prices drop forced the larger screens to cost less and less. Today, 15 inches LCD monitors have disappeared from shops, 17 inches are shrinking. The bulk of the market focuses on the 19, 20 and 22 inches . The bigger diagonals remain more popular with creative professionals. For these screens, it takes 130 to 200 $ (19 inches) and 170-250 $ (22 inches).

Resolution and settings
Once the screen size selected, look at what resolution it has . Manufacturers use this term to designate the maximum number of cells providing the LCD display. The native resolution of a LCD monitor is the resolution in which the image is displayed optimally. The change (via settings) generate a fuzzy image. The most commonly adopted on the 20 and 22 inches reaches 1680 × 1050, the 19-inch displays more frequently 1440 × 900. Both correspond to a 16/10 format (1 680 / 1 050 = 1 440/900 = 16/10), the closest to the human field of vision, and thus offers the best comfort. The benefit of this is obvious panning for watching videos. In terms of office use , these wide screens have the advantage of spreading easily several applications on the screen, a detail for an intensive user can be very interesting. Proponents of video games would not really like this format and see the images of their heroes virtual slightly deformed. Better then opt for a screen in five quarters, which offer a greater surface diagonally equivalent.

Very practical, the possibility to adjust the screen height is far from systematic. It adjusts to better position the device. Without it, you would simply rotate back and forth. Other important settings, brightness and contrast, that you may have to change depending on the type of picture that you are viewing (film, photo, office paper, etc..). They must be accessible only by one or two buttons in front, without going through the maze of a menu.

Connectors
All LCD monitors are equipped with an analog VGA . Most also offer a digital input, DVI most often, sometimes HDMI (which can connect a DVD player or Blu-ray game console : xbox or Sony Playstation type).

A digital input is a real plus , it removes any image degradation due to conversions analog / digital (using an analog VGA output forces the computer to convert the image in this way , the image will then be converted to digital to be displayed on the screen – the process can only affect the quality of the signal). To view videos in high definition, the screen must also be certified HDCP (High-Bandwidth Digital Content Protection). One point that movie fans should check.

Contrast ratio and response time
Manufacturers emphasize the contrast ratio and response time of their monitors. The contrast ratio, ratio of maximum luminance (white) and minimum (black) [eg 500: 1], is actually not very relevant (which looks at his screen maximum contrast ratio, unless he is in the sun?). It especially lacks reliability: methods of calculation may vary from one manufacturer to another. By default, in theory, the higher the value, the better.

The response time, meanwhile, said the time it takes a pixel to change from white to black then back to white. It must be low (8 milliseconds) to correctly display images rapidly changing (eg video games), and avoid smudges on the screen . Unfortunately, the value proposed by manufacturers is often wrong, tests have shown this . Some monitors include speakers, providing a space saving and saves the cables that are needed for connecting external amplifiers. Unfortunately, their quality is often poor. Their presence should not be a selection criterion.

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