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Introduction 9
1. INTRODUCTION
1.1 Overview
Resolution and bandwidths
The BARCO MGD 521 M and MGD 521 MKII displays are ultra-high
resolution, grayscale portrait displays. Their outstanding visual
performance, combining a 5 MegaPixel resolution with a very high
brightness, makes them ideal for diagnostic imaging and many other
medical and scientific applications.
The displays are compatible with any AC power system worldwide
and automatically synchronise to a wide range of sync frequencies.
their high-speed video amplifiers support pixel clocks up to 500 MHz
(MGD 521 M: 550 MHz).
The memory system
The internal memory system can contain the adjustments for 16
different scanning formats, the so-called scanning modes. Each
scanning format is characterized by its sync signals. The displays
internal micro controller continuously samples the connected sync
signals and compares them to the scanning modes already stored in
the memory. If the connected signal has already been stored, the
micro controller adapts the image to the corresponding adjustment
values in the memory, and further adjustments are unnecessary.
Image conformity and consistency
Image conformity and consistency are the keywords. In our factory,
the MGD 521 displays are perfectly adjusted and calibrated before
they are shipped to the customer. Internal circuits, like the TrueGrey®
and Automatic White Stability (AWS) systems, ensure display
consistency over time.
Conformity with the original image quality is guaranteed by the
automatic calibration, which can be done by means of an optical
sensor, connected to the Sensor connector on the display. The
sensor is not supplied with the display.
Calibration and adjustments
The conformity calibration, as well as the complete adjustment of the
display, can be performed by means of the remote, user-friendly
MediCal® software package. MediCal is especially developed to