LG Flatron W2284F
LG positions its Flatron W2284F as a premium class monitor but only emphasizes the dynamic contrast of 30,000:1 in its specs. That sounds suspicious to me as one would expect more from a premium product.
The Flatron W2284F has a standard screen size: 22 inches with an aspect ratio of 16:10 and a native resolution of 1680x1050 pixels. It is based on a TN matrix with response time compensation.
The viewing angles are specified to be 176 degrees wide horizontally and 170 degrees wide vertically. The numbers look nice but I have to disillusion you: as is often the case with TN matrixes, the angles are measured according to the relaxed method (for a contrast ratio reduction to 5:1) that ensures a better result the manufacturer can write into his product specs. Moreover, the current method of measuring a monitor’s viewing angles is such that the result depends on the matrix’s contrast ratio when viewed at a right angle. The higher this contrast ratio, the wider the viewing angles are. In other words, you should not pay much attention to this parameter in the specifications of TN-based monitors – a difference of 10 degrees is practically imperceptible with a naked eye.
The specified response time is 2 milliseconds which is a typical and minimum value for modern TN monitors. It means that the Flatron W2284F has response time compensation technology that came to LCD monitors a few years ago along with 4ms matrixes and helped improve their response dramatically (the effective difference between 4ms and 5ms matrixes is three- or fourfold).
The specified contrast ratio is as high as 30,000:1. It is dynamic contrast, of course. In the dynamic contrast mode the monitor’s brightness is being adjusted automatically depending on the currently displayed image. The lighter the image, the higher the brightness is, and vice versa. This technology is no good for ordinary office applications (the fluctuations of brightness are going to strain your eyes quickly). It is only meant for movies but some people do not like its effect even in movies. As far as I know from my experience, there is no practical distinction between monitors with different dynamic contrast ratios if the latter is higher than 10,000:1.
Unfortunately, the manufacturer does not specify the value of ordinary, static contrast ratio.