Barco MGD 221 MKII user manual Introduction, Overview

1. INTRODUCTION

1.1 Overview

Resolution and bandwidths

The BARCO MGD 221 is a high resolution, greyscale portrait display. Its outstanding visual performance, combining a 2 MegaPixel resolution with a high brightness, makes it ideal for medical imaging and many other medical and scientific applications.

The MGD 221 is compatible with any AC power system worldwide and automatically synchronizes to a wide range of sync frequencies. Its high-speed video amplifier supports pixel clocks up to 250 MHz.

The memory system

The internal memory system can contain the adjustments for 8 different scanning formats, the so-called scanning modes. Each scanning format is characterized by its sync signals. The display’s 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 221 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 adjust and check BARCO’s medical displays.

Introduction 9