The panel may have some defective pixels (ex. slightly light or dark) due to a characteristic of the panel.
However, there is no defect in your panel product itself.
Factory preset timings
UVM-2600 model
Mode
Resolution
VGA
640 x 480 @ 60 Hz
VGA
640 x 480 @ 72 Hz
VGA
640 x 480 @ 75 Hz
SVGA
800 x 600 @ 56 Hz
SVGA
800 x 600 @ 60 Hz
SVGA
800 x 600 @ 72 Hz
SVGA
800 x 600 @ 75 Hz
XGA
1024 x 768 @ 60 Hz
XGA
1024 x 768 @ 70 Hz
XGA
1024 x 768 @ 75 Hz
SXGA
1152 x 864 @ 75 Hz
SXGA
1280 x 960 @ 60 Hz
SXGA
1280 x 1024 @ 60 Hz
SXGA
1280 x 1024 @ 75 Hz
HD
1366 x 768 @ 60 Hz
Mode
Resolution
EGA
640 x 350 @ 70 Hz
DOS
720 x 400 @ 70 Hz
Mode
Resolution
VGA
640 x 480 @ 67 Hz
SVGA
832 x 624 @ 75 Hz
SVGA
152 x 870 @ 75 Hz
Mode
Resolution
SVGA
1280 x 1024 @ 70 Hz
The LCD monitor has only non-interlaced modes without flicker.
User Manual
VESA modes
H freq. (kHz)
V freq. (Hz)
31.5
37.9
37.5
35.2
37.9
48.1
46.9
48.4
56.5
60.0
67.5
60.0
64.0
80.0
47.7
IBM modes
H freq. (kHz)
V freq. (Hz)
31.5
31.3
MAC modes
H freq. (kHz)
V freq. (Hz)
35.0
49.7
68.7
MAC modes
H freq. (kHz)
V freq. (Hz)
74.4
Remark
60
Non-interlaced
72
Non-interlaced
75
Non-interlaced
56
Non-interlaced
60
Non-interlaced
72
Non-interlaced
75
Non-interlaced
60
Non-interlaced
70
Non-interlaced
75
Non-interlaced
75
Non-interlaced
60
Non-interlaced
60
Non-interlaced
75
Non-interlaced
60
Non-interlaced
Remark
70
Non-interlaced
70
Non-interlaced
Remark
67
Non-interlaced
75
Non-interlaced
75
Non-interlaced
Remark
70
Non-interlaced
13 EN