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VGA
ideo graphics array, a standard video display system for PCs developed by IBM. In text mode, VGA systems provide medium resolution text and graphics: in text mode, 720x400 pixels, and in graphics mode, either 640x480 (with 16 colors) or 320x200 (with 256 colors). VGA uses analog signals rather than digital.
Viewing Angle
The area that will provide optimum viewing of a display. The angle is determined by the horizontal and vertical points at which the measured light intensity is 50 percent of that measured directly in front of the display. Expressed another way, the maximum viewing angle is defined by the vertical and horizontal points where the information displayed can no longer be interpreted by the viewer. (This does not mean that the LED cannot be seen outside the viewing angle. Viewing angle is an industry-accepted term and used by the LED manufacturers themselves.) (see readability angle).
Viewing Distance
In general, the distance from a sign that text can be read. For digital displays, the maximum viewing distance is gauged by the readability of the entire display. It is generally accepted that for every 1' of display height, there is a viewing distance of 40' (40:1 ratio). For example, an 8' display could reasonably be viewed at a distance of 320'. For traditional matrix displays, the maximum viewing distance is gauged by using the smallest text character (using a 7-pixel-high font). The accepted standard is that displays gain 50' of viewing per inch of character height. For example, using a 7- high font for a 1.5" pixel (character height = 7 pixels x 1.5" = 10.5"), the viewing distance would be 525'. (10.5 x 50' = 525). The minimum viewing distance is defined as the closest distance at which the colors from an individual pixel begin to blend with the surrounding pixels.
Vinyl
A single-sheet substrate on which an advertising message is rendered
by either computer production or hand painting. Vinyl is primarily
used on the face of bulletins & Premiere products.
Voice Trak
Provides local market provides media spending activity reports
for use in budget planning, the allocation of advertising resources,
and the analysis of advertising results.
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