Product data

Clarity Visual Systems
September 1997
42
Test Video
Mode
Pattern or
Image
Pass Criteria
VGA Data path VGA 256 shades of
red, green and
blue
No blank or missing colors
MAC II Data
path
MAC II 256 shades of
red, green and
blue
No blank or missing colors
31.5K Video
Data path
31.5K Video 256 shades of
red, green and
blue
No blank or missing colors
Row or Column
shorts
Any Checkerboard No solid black/white rows or
columns
Loop-Thru Any Any Video must pass through and
display on another display or
monitor
RS-232 N/A N/A Able to control VideoWall with PC
via RS-232 port
Optical Defect Specification
1. Scope
The following specification defines the maximum allowable defects in the image of the Clarity WN-
5220-V-V. These defects include non-operational pixels, other bright or dark spots caused by
scratches, blemishes, dust, lint, and smudges (abrupt discontinuities in uniformity). Gray shade noise
and image retention are separate defects specified.
2. Definitions
a) Non-operational pixel.
i) Bright pixel.
A non-operational bright pixel appears as a bright red, green, or blue dot
when a black image is displayed. The size of the spot corresponds to the
size of a pixel on the screen. These defects are defects in the LCD.
ii) Dark pixel.
A non-operational dark pixel appears as a dark black spot when a white
image is displayed. The size of the spot corresponds to the size of a pixel on
the screen. These defects are defects in the LCD.
b) Scratches, blemishes, dust, lint.