At the maximum (and preferred) resolution setting
the pixel to pixel ratio is exactly 1:1, and the resulting image
is very crisp. At 848x480 the picture is pretty garbled, even when we adjusted
the setting as best possible. A resolution of 800x600 comes in fairly blurry
without any adjustments, but sharpens up slightly after the display is automatically calibrated. The
effect isn't so much sharpening the image, as more equally spacing the image out over the
screen.
Confused? The next example, with the display set to 640x480
is a better example of what visually happens. With the resolution at
this setting the image is very blurry, and uneven. After automatically adjusting the display
the 570S TFT is a fair bit sharper, and legible. The adjustments which
take place have to do with how the picture is broken up over the
set number of pixels. CRT doesn't have this setting, because they operate on a totally different
principle.
The
backlight on the display is good for about 10,000 hours before the
manufacturer recommends it be replaced. We found that the intensity of the backlight was very even. White pages were evenly toned throughout.
A solid black background showed no shadowing or inconsistencies whatsoever.
The full list of resolutions and frequencies are listed below:
Resolution |
Freq Hor. |
Freq Ver. |
Pixel Clock |
Standard |
640x350 |
31.5kHz |
70Hz |
25.2MHz |
VGA |
720x400 |
31.5kHz |
70Hz |
28.3MHz |
VGA |
640x480 |
31.5kHz |
60Hz |
25.2MHz |
VGA |
640x480 |
37.5kHz |
75Hz |
31.5MHz |
VGA |
640x480 |
35.0kHz |
67Hz |
30.2MHz |
MAC |
800x600 |
35.2kHz |
56Hz |
36.0MHz |
SVGA |
800x600 |
37.9kHz |
60Hz |
40.0MHz |
SVGA |
800x600 |
46.9kHz |
75Hz |
49.5MHz |
SVGA |
832x624 |
49.7kHz |
75Hz |
57.3MHz |
MAC |
1024x768 |
48.4kHz |
60Hz |
65.0MHz |
XGA |
1024x768 |
56.5kHz |
70Hz |
75.0MHz |
XGA |
1024x768 |
60.0kHz |
75Hz |
78.8MHz |
XGA |
The On Screen Display for the 570S TFT is fairly average, with navigation
via the five buttons on the front bezel...