CYP CPHD-V4, Operation Manual

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33. Grayscale Adjust (256 Levels)
Adjustable from 0 to 256
The Grayscale Adjust pattern provides a full field of grey with user
adjustable brightness levels for testing display gray purity and signal
response. The brightness can be freely adjusted from 0 to 255 by pressing
the PATTERN button followed by the −/+ buttons. The gray level number will
appear in text on screen while it is in adjusting mode.
34. Grayscale H
The Grayscale H pattern provides 4 distinct gray fields in an “H”
arrangement for testing luminance transition stability. No color or interference
should be visible at the transitions between sections.
35. Grid
The Grid pattern provides a selection of red, green, blue and white boxes
with 2×2 grids within and above them to test for pixel on pixel and color offset
issues.