Monitor System
The New Generation Pc Monitors
A computer is incomplete without its output device. Any work cannot be accomplished without this device. PC monitors are called visual display device units, which are simply known as monitors. There are generally five types of monitor available in the market. These are,- Cathode ray tube, passive liquid crystal display, TFT monitor, Plasma monitor and Penetron monitor.
The performance of a monitor can be measured by some factors like response time, refresh rate, display resolution, power consumption, contrast ratio and luminance. Modern computer displays can show thousands or millions of different colours in RGB colour space signals in continually variable intensities. While many monitors have the analog signal relay, some more recent models (mostly LCD) screens come with digital input signals. It is a common misconception that all computer monitors out there in the market use the digital technology.
The traditional home computers were using a composite signal output to drive the CRT monitor. Those were known as TTLs, which used to result in degraded resolution. Later, the digital monitors come with the support of LVDS, or TMDS protocols. For displaying the computer generated output, several different technologies are used like the liquid crystal display technology, video projector technology, organic light-emitting diode display, penetron technology and cathode ray tube technology. From all these technology, generally LCD technology, CRT technology and plasma technology are used.
Some users use multiple monitors. Then there are some monitors which can be operate in multiple modes. PC monitors also have some additional features like touch screen, directional screen and super power saver. Touching is the input method of Touchscreen monitors. Items can be selected or moved by the help of a finger, and finger gestures convey commands. This does however mean the screen needs frequent cleaning due to image from fingerprints. Narrow viewing angle screens are used in some security applications.
Major computer monitor manufacturing companies are – Acer, BenQ, Hewlet-Packard, LG Electronics, Viewsonic, Philips, Samsung and Sony.
Most modern pc monitors come with a power saver system which is switched on if no video input signal is received. Modern operating systems can thus manage the power of a monitor after a specified period of inactivity. This also extends the service life of a monitor. Most modern laptops provide a method which gradually dimming the screen after periods of inactivity.
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Consumer Electronics, Price Comparison
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