The LCD screen is the successor of the CRT screen, which takes a large space on your desktop. It's considered a new technology to change from using the CRT screen to LCD one. The LCD stands for "Liquid crystal display" as it depends on liquid crystal on its work. The liquid crystal is neither a solid nor a liquid. We can consider it a state between the both. This state needs small amount of heat to be a liquid and needs a small amount of cool to be a solid, which makes it very 
sensitive to temperature.
What I am going to talk about is not how the LCD screens work! But I am going to offer you help if you want to buy an LCD monitor, and also we will see a concise overview about the newest LCDs in the market.
Initially, there are some concepts you need to be aware about before buying an LCD monitor:
1-Resolution:
The size of the LCD monitor (width x height) expressed in pixels, every LCD monitor has its native resolution, which express all its performance.
e.g.: 1024x768
2- Aspect ratio:
The ratio of the width to the height
e.g.: 4:3, 5:4, 16:9 or 16:10
3- Brightness:
The amount of light emitted from the monitor. It is known also as the "luminance" of the display.
These concepts are really sufficient to help you making a decision about a certain monitor.
Now, we will exhibit an overview about the latest 19'' LCD screens in the market.
Samsung
Samsung has produced a new LCD monitor that features a great performance. And also it is smart in power consumption, the new model is "Samsung 943SWX".
The screen size is 18.5'' wide screen; it enables the best quality of details, and gives a larger display area with aspect ratio 16:9.
This aspect ratio is optimized for entertainment, as it goes out of common standards.
The resolution of this screen is 1360px X 768px and it enables you to have multiple screens with one monitor. The main dimensions of the 943 SWX are 17.4'' x 14'' x 7.3'' (W x H x D in inches).
As I said, it is smart in power consumption. As it dissipates 20 watts while using and less than 1 watt in standby mode. In addition to that, it weighs only 3.56 kg.
LG
Play wide, Play LG! This is really true when you deal with this product from LG, the W1934S.
It is 19'' wide screen with a great resolution of 1440px X 900px. The aspect ratio is 4:3 which is totally convenient for your use.
When talking about the dimensions of the product, there isn’t a big difference between the Samsung screen. It's about 448 x 183 x 376 (in millimeters).
What makes this product special is its weight, as it weighs about 3.2 kg.
The power consumption is 3d watts and 1 watt in the stand by mode
ViewSonic
The ViewSonic VG1930wm features widescreen and great multimedia performance. As it is enhanced with amplifier and two speakers of 1.5 watt.
The screen size is 19'' with a resolution of 1440px X 900px, but the total dimensions are big as they are 460mm x 434mm x 230mm, and it weights 5.4 kg.
