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Test Patterns
Test Pattern Notes
None Displays the source
Red
Green
Blue
Black
Grey
Displays a full screen of the selected color. Gray displays a 50% gray pattern, which is useful for
detecting if TIR has occurred. For more information, see “Optimizing Your Clarity Display” on
page 116.
Gray Scale
Red Scale
Green Scale
Blue Scale
These show 32- or 64-step scales. You should be able to see all the steps clearly.
Colors Displays a rainbow of colors and a gray scale at several levels of saturation for testing uniformity.
Color Bars Displays a pattern of the three primary colors and the primary combinations along with black and
white. This is similar to, but not the same as, color bars in the television and video field. These bars
are 100% saturated.
Grid Displays a large grid pattern with illuminated outer edge, and is useful for aligning an image, espe-
cially in rear projection applications
Alignment Dashes Displays a set of six-pixel staggered alignment bars. Used to ensure the same number of pixels are
hidden on all sides in rear projection systems. Not useful in direct view applications
4x4 Checkerboard Used in the factory to measure the contrast of a system
Uniformity Used in the factory to measure brightness of the rear projection lamps in 13 different locations on the
screen
Focus Used in the factory to adjust the focus of rear projection systems
Logo Displays the default factory logo or a custom captured logo.