The display on the 570V TFT is very sharp and very bright. Bright
colours are vibrant, and black backgrounds are even and dark (contrast is 250:1
and brightness of 200cd/m2). This contrast value as we mentioned previously
defines how dark the darks are and how light the whites are. If the
contrast is low, everything is somewhat dull. With a high contrast, black
and white characters when placed next to one another are very
highly defined. Typical contrast ratios sit in the range of 150:1 to
300:1. From what we've seen in the past on other TFT displays anything
above a contrast of 100:1 is pretty much fine in an darkened room.
Where the differences stick out is in bright rooms, where the lower contrast
display's can sometimes appear dull.
Brightness or Luminance defines how much light is coming at you. Basically
the brighter the display is, the better the colours. For instance, if a display
has a low brightness rating the whites can sometimes seem pinkish. With a very
bright back light, the whites are comparable to that of a CRT display. The
Samsung 570V has a luminance factor of 200cd/m². Most TFT displays range in
brightness from around 180cd/m² to 250cd/m².
The dot pitch for this panel is 0.297mm for the horizontal and the vertical.
The viewing angles are 60 degrees left, 60 degrees right, 55 degrees up, and 55
degrees down. These ratings are commonly written out like this in the
specs; 60/60/55/55 (L/R/U/D). Those numbers mean a person can be at a 60 degree
angle to the screen and still be able to view the screen clearly. Laptop
displays typically have very shallow viewing angles to prevent people from
seeing what you are doing over your shoulder - a sort of privacy screen as it
were. About the best set of viewing angles you could ever expect to
see would be about 80/80/80/80, the tightest would be around 15/35/45/45 (on a
notebook TFT display).
Samsung do not list the response times of the display,
so we can't say what they
are exactly. Measured in milliseconds, the response time relates to
how fast a single pixel can change from one colour to another. The
faster the response time, the better. On displays with relatively slow panel response times,
text or images can begin to streak
if they are moving quickly about the screen real estate. We've saw a
bit of this happen on an earlier display. In that instance, what we saw when
moving a full page of text up or down quickly was a reddish
shadow following the black text as it moved. On the SyncMaster 570V, there is no
visible streaking that we could see - which is a good thing as that streaking was
Resolutions with flat
panel displays are a bit different than with their CRT relatives. With
LCD displays you always want to operate the display at the maximum resolution -
in this case at a resolution of 1024x768 pixels. With the computer set
at this resolution there is no dithering effect because the dot in the panel
accurately corresponds to the resolution setting. The full list of supported resolutions and frequencies are listed
The On Screen Display
for the 570V TFT is typical of other Samsung
displays we have looked at previously (identical in fact). Navigation through the menus are achieved via four of the
buttons on the front bezel of the display.