Notes to Test Patterns

1. The proper display of these patterns depends upon a number of things, including the web browser being used and the graphics display capability/settings in the receiving personal computer. While in most cases the patterns are expected to display properly, they may not; if there are any questions at all, any critical setup should be done with conventional test patterns.

2. For fixed resolution (digital) displays, it's generally best to set the graphics display output to match the projector/display resolution. For example, if the display native resolution is WXGA (1366x768), set the PC output to that resolution. While this isn't important for most of the patterns here, for the Repeating Patterns this "pixel by pixel" display mapping is necessary to achieve the maximum benefit from the patterns.

3. If the projector/display has a 16:9 aspect ratio, and the PC graphics only supports 4:3 aspect ratios, select the graphics resolution to match the vertical resolution of the projector. For example, if the projector is WXGA (1366x768), set the PC output to XGA (1024x768). Then set the projector for an unscaled display (or "native" or "true" or "resizing OFF") to display the Repeating Patterns, and for a scaled display (or "zoomed" or "fit" or "resized ON") for all the other patterns.

4. To use the patterns in other ways, the fixed patterns can be "right clicked" and then either "used as wallpaper" or "saved" for used with a graphics or drawing program.

5. For proper pattern display and evaluation, the Brightness and Contrast controls in the display device must be properly set for "black level" and "white level", respectively. Levels set with these patterns should correspond to the correct levels for using the projector with that computer, but may not be the correct settings for using other sources, or even possibly other programs.

6. The brightness levels used in these patterns go from "0" for black to "255" for white, so that there is not any headroom for blacker than black or whiter than white signals, such as typical DVD sources will provide. If necessary, simply make Brightness and Contrast adjustments to achieve proper pattern display.  There are a few patterns, however, that show the 16 and 235 levels so these can be used for black and white after making appropriate monitor adjustments.