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EL320.240-FA3 Operations Manual Page 7 of 25
Another option is to electrically “OR” the 3 red MSBs together and route the
result to R1, OR the 3 red LSBs together and route to R0, and do the same for
G1 and G0. Additionally the bits of blue could be OR’d together with either
the red or green bits depending on the characteristics of the images that need
to be displayed.
If upgrading from a monochrome EL320.240 display model and using the SGD
timing mode, some engineering will be required to map the monochrome
SGD data into the color data required by the EL320.240-FA3. SGD data is one
bit per pixel, and 4 pixels of data are latched per video clock edge. The
EL320.240-FA3 is 4 bits per pixel with one pixel of data latched per clock edge.
Display Overlay Considerations
Though not a requirement, often the end system will employ some type of
transparent cover over the front the display. The purpose and construction of
the cover varies depending on the application and economical constraints.
The cover may be used to improve contrast under certain lighting conditions
by reducing reflections, to provide additional impact protection, to provide a
more seamless enclosure appearance, or to protect against fluids. See
Application Note AN117-01 at planar.com for details. Some leading suppliers
of various display overlays are: EyeSaver International, Cyro Industries, and
Dontech Incorporated.