'Tip' You choose the Liquid Crystal Display

'Tip' You choose the Liquid Crystal Display

LCD production is an expensive business. A "normal" manufacturing plant requires at least $ 1 billion in initial investment. As a result, PC manufacturers often agree with screen makers to save money from the specialization of labor. Starting from this fact, the two concepts of "picking a good machine" and choosing "good screen" sometimes do not really match.

According to experts, Forrest Gump: Choosing an LCD from a reputable PC vendor is like buying a box of chocolates. The box can be very beautiful but you will not know the true quality of the chocolates in the box. Solution? Ask "tips" for some tips to choose the screen.

Choose according to quality criteria

Size (Size). People are often "superficial" elements. Once you've used the 17-inch screen, you're less likely to go back to the 14-inch screen, although the 14-inch screen might be better. The advice is to buy a wide-screen size to the extent that your "budget" permits. Note, however, that price differences across screens 14 & quot ;, 15 & quot ;, 17 & quot ;, 18 & quot; It has shrunk drastically over the years.

Resolution. Resolution is the number of pixels per square inch. With other common screen, the main screen is the place to display the image honestly. For LCDs, the optimal resolution is defined as the native resolution fixed for each specific screen size. Example: 15 '': 1024x768, 17 '': 1280x1024, 18 '': 1280x1024.

Brightness (Luminance) . The brightness of the LCD screen is measured in cd / m2 (candelas per square meter). This parameter is not easy to find, but you try to "rummage" on the manufacturer's website by index as much as the quality of the screen as possible - especially when bringing the screen out. The degree of oscillation of this indicator (also known as nit) from 170 to 300 (quality equivalent CRT).

Pixel response rate . This is also a "hard to find" parameter for people not very connoisseur about the choice of LCD. The PRR rate determines the time required for a pixel (pixel) turn on or off. You need to know this metric if you use a computer to view or edit a video. At the standard time of 10 - 20ms; Time to pixel disappears from 35 to 40ms.

Contrast Ratio . If manufacturers use consistent methods to measure contrast, this will also be an important indicator to confirm the quality of the display. Contrast ratio shows the difference between the brightest and darkest part, ranging from 200: 1 to 500: 1.

Viewing angle . Angle is the viewing angle from the left to the right of the screen compared to the user's face. Compared to the CRT screen, while sitting on the side you can still see the image, while the LCD screen narrow view so when using to sit face. Therefore, when buying an LCD monitor you should not look directly. Viewing angles are in two parameters: horizontal and vertical viewing angles. You do not need much attention to the viewing angle except you constantly have to use the LCD screen to show. In this case, the viewing angle is at least 120 degrees horizontally and 100 vertically. The best viewing angle an LCD can currently meet is 160 degrees both horizontally and vertically.

Warranty (Warranty) . Two things to keep in mind: Firstly, when the "new" LCD gets out of the box, turn on the monitor and check the "dead" pixels (black on a white background, white on a black background or not sometimes images change). You can accept a screen with one or two dead pixels but not a whole bunch of dead images. Keep in mind that some retailers actually only guarantee the product within ... 1 week. Second, the LCD warranty can last for 3 years, ensuring that the warranty value includes the backlight due to the high failure rate of the component.

"Most of the time". Do not select the integrated speakers screen. Of course, an integrated speaker can save a bit of space, but it can cause other problems. Remember, a set of speakers is much cheaper than an LCD while the failure rate is much greater. So, it would be unwise to choose a 2-in-1 matching solution.

Select the LCD according to the target use

Here you have been advised how to choose the LCD from the criteria size, resolution, price etc. In each category, you can find many types of screen match. However, the decision to choose will be more accurate if you choose the screen based on your intended use.

Browse the Internet, email, word processing

This is the most commonly used group, because most users have the need to browse the web, read email and handle text, documents. The advantage for this group is that the screen costs are not high; Just ensure the sharpness of the image and not harm the eye. Recommended you "invest" 17 inch screen.

Entertainment: Gaming

"Gamers" often place high demands on computer configurations: fastest, coolest and most loud to be able to win! For this reason, most gamers and game makers stay away from LCDs. According to them, the quality of LCDs does not follow the CRT - especially the LCD often appears ghost effect (trace image stretching in the fast speed). At present, high-tech LCD monitors solve these shortcomings. However, the price of such screens is not expensive but ... very expensive. Tips for you: try if you still decide to choose LCD.

Graphics, image processing and publishing

Overall, the LCD monitor is well-suited for digital image processing thanks to the brightness, clarity and "feel" of colors. To get the most out of this, buy a monitor with a resolution of at least 1280x1024 and a widescreen display that you can afford.

Entertainment: Watch movies, TV

Games are not the only means of entertainment on the computer. Thanks to the integrated tuners and DVD browsers, VDC ... the computer can also play a role for music or a high-quality TV. For this feature, you should buy a 16: 9 widescreen LCD monitor with a minimum resolution of 1920x1080.