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Defining the 811 Test Patterns
9
8 Defining the 811 Test Patterns
Table 5 describes the
811
test Patterns:
Table 5: Test Pattern Definitions
Pattern #
Name
Display
Can be used to:
0
Black burst
Synchronize machines
Check for noise in the picture
1-3
Color Bars
Check the capability of the device to
create fully saturated primary and
secondary colors and check video
and TV monitors
4-5
SMPTE Bars
Align the NTSC color transmission
system
Adjust color and hue through a blue
filter
Adjust brightness and contrast
6-8
Gray Scale bar
and Chart
Check the contrast, the brightness
and the linearity of the video
amplifiers and D/A converters
Check the precision of the color-
coding and beam focusing (color
shifts from gray)
Fine-tune the color balance
Control contrast
9-14
Full field color
raster patterns
at 75%
amplitude
Check color purity and display
chrominance uniformity
Check for missing pixels on a TFT or
LCD Monitor (switch to Red, Green
and Blue, and observe the screen
for missing pixels, which look dark or
stuck)
Check power supply stability, and
video processing circuits noise