What problems should I pay attention to when buying a monitor, especially an LCD monitor?

1.Whether the screen is scratched or not. Less likely.

2.Whether the screen has a dead pixel or not, it is a bright spot or a black spot.

3.Whether the gap between the screen and the bezel is the same or about the same, don't buy a screen press, it is easy to break, and it will also be white when it is lit around the screen press.

As for what you said about 20000:1 and 2000:1 are not very important.

The above points are the most important things to buy a monitor.

There are a few things to pay attention to when buying an LCD monitor:

1,If you look at the brand, I think your home is better than ViewSonic at home,Regardless of the quality or workmanship, it is far more than Samsung,**It will also be a little higher than Samsung,If the price is high, choose LG,LG's quality I think is also better than Samsung,You can understand,The current good LCD TV hard disk are。

It's LG, the cheap soft screen is Samsung's, if you want to find a better service, just TPV's first, TPV is a three-year warranty, and the service is also big in various places. Where it is now.

The sales volume is also the largest.

2. If you want to buy a brand that can be used, then you have to find a brand that has its own factory and guarantee.

3,It's to see if there's a point.,This is very simple.,It's generally on a black screen.,And under the white screen, as long as it's not.,It's OK.。

It's much more reassuring to buy a better brand, and the monitor looks like nothing!

After you buy it back, you will know whether he is good or not, and it is best to ask him how long the warranty is when you buy it!

I've sold computers, some of them have problems in about two weeks after they bought them, and some of them haven't had problems for a few years, and I think Samsung is not bad!!

While enjoying the unique display effect of LCD every day, don't forget the extremely important part of maintenance. Only when the LCD is well maintained can it serve users for a long time without failure. Here we invited Philips LCD display engineers to introduce us to some precautions for LCD displays.

I've heard that CRT monitors have phosphor burnouts, do LCDs have them? CRTs can burn out due to long-term operation, and this is also a problem for LCDs. So be sure to pay attention to turn off the display if you are not using it, or reduce the display brightness of the display.

Otherwise, it will lead to internal burnout or aging over time. This damage, once it occurs, is permanent and irreparable. In addition, if a fixed content is displayed continuously for a long time, it may cause some LCD pixels to overheat, which may cause internal burnout.

I've heard that LCD is very demanding on air humidity, is there such a thing? This statement is inaccurate, generally the humidity is kept between 30% and 80%, and the display can work normally, but once the indoor humidity is higher than 80%, condensation will occur inside the display. The internal power transformer and other coils are also prone to leakage when wet, and may even cause a short circuit in the wiring.

Therefore, the LCD display must pay attention to moisture-proof, and the display that has not been used for a long time can be powered on regularly for a period of time, so that the heat generated by the display when it is working will drive out the moisture in the machine. My LCD screen is dirty, how do I clean the surface of the display? If you find that there are stains on the surface of the display, you can gently wipe it off with a soft cloth with a little water, do not spill water directly on the surface of the display, water entering the LCD will cause a short circuit on the screen.

Is there anything else I need to pay attention to when using LCD monitors? LCD screens are very fragile, so avoid strong shocks and vibrations, LCDs contain a lot of glass and sensitive electrical components, falling to the floor or other similar strong blows can cause damage to the LCD screen and some other units. Also be careful not to put pressure on the LCD display surface.

There is one rule: never disassemble an LCD. Even after being turned off for a long time, the CFL inverter in the background lighting component can still carry a high voltage of about 1000V, which can cause serious personal injury.

So never try to disassemble the LCD display to avoid high pressure. Unauthorized repairs and changes can result in the display temporarily or even permanently rendering it unfunctional. So when your hands and feet are really idle, don't touch the delicate and dangerous LCD!

19 inches is about 700-800.

There are many brands, Samsung, Philips, ViewSonic and so on.

Pay attention to whether there are dead pixels on the screen, on-site boot inspection, generally within 3 is considered a qualified product, but it is best not to have a dead pixel.

Then pay attention to the interface, some cheap ones only have VGA interfaces, and it is better to have DVI interfaces.

Also pay attention to whether there is a maintenance point of this brand in the local area, and sometimes the return due to quality problems also requires a certificate of repair point.

The first taboo: water invasion.

Moisture can be said to be the first natural enemy of liquid crystals. The destructive power of water on LCD screens is staggering. Therefore, the LCD should be used in a dry environment to prevent moisture from entering the LCD.

For some users whose working environment is more humid, you can buy some desiccant and put it around to keep the air around the LCD dry.

The second taboo: dust infestation.

Liquid crystals, like CRT, are very susceptible to dust.

The third taboo: hard object attack.

The liquid crystal is relatively soft and easy to be damaged (except for those with a glass screen on the outside). Therefore, you must be careful not to touch the screen with hard objects when you usually use it.

The fourth taboo: prolonged use.

Since LCDs are not simple, their pixels are made up of a large number of liquid crystals, and if they are used continuously for too long, the crystals will age or burn out. Once the damage occurs, it is permanent and irreparable. So it's best not to use it for a long time, now many users' computers are on the Internet, for convenience, often turn off the display at the same time after shutting down, which will seriously damage the life of the display.