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Screen Standards
VGA (Video Graphics Array)
The VGA standard supports 640-by-480 pixel monochrome or 16-color graphics and 320-by-200 pixel 256-
color graphics, and uses an 8-by-16 pixel character box for text display.
The TravelMate 2000 LCD screen supports VGA by displaying text in an 80-column. by 25-line text display
with 16 shades of gray in two modes:
Standard Expanded
Character box: 8 x 16 8 x 16
Display area: 640 x 400 640 x 480
Color graphics are supported by displaying colors as 16 shades of gray in three modes:
Resolution: 320 by 200 pixels with 16 shades of gray
Standard
One pixel is converted to a 2 x 2 cell
Display area: 640 x 400
Expanded
Every fifth line is displayed twice
One pixel is converted to a 2 x 2 or 2 x 4 cell (every fifth line)
Display area: 640 x 480
Resolution 640 by 480 with two or 16 shades of gray
Standard
One pixel is a 1 x 1 cell
Display area: 640 x 480
J-4 Screen Standards