NEC MD User Manual

Diagnostic Desktop

NEC MultiSync® MD Series

21.3” grayscale medical-grade LCD displays ideal for diagnostic imaging

www.necdisplay.com

Modern medical technology enables complex examinations. But in
the end, it is the radiologist who is responsible for fast and accurate
diagnostic findings. To support these findings in a soft copy read­ing environment, flat-panel displays need to comply with the highest
visual requirements. Their image quality has a decisive influence on
diagnostic accuracy.

MultiSync MD Series grayscale displays – in combination with the
appropriate graphics controller – are designed for diagnostic imaging
and for use in Picture Archiving and Communication System (PACS)
applications. Furthermore, diagnostic imaging displays from NEC
Display Solutions are based on technologies and functions which
actively contribute to a reduction of cost of ownership.

Figure 1.

9

1

2

3

4
5

X-Light technology - a view
behind the screen

1 LCD panel
2 Polariser diffusing plate, etc.
3 Light guide plate
4 Color sensor
5 Temperature sensor
6 Current data of color sensor and
temperature sensor
7 Control of 3 inverters
8 Calibration of whitepoint via
pre-calibration in factory, software
(GammaComp MD) or reference
value of external sensor

9 Light sources, white light using a
mixture of different phosphor
colors

Factory calibration and
consistency. Using state-

of-the-art equipment
during production, each
NEC MultiSync MD Series

as it enables a more flexible use of display equipment. Since all
X-Light-equipped monitors are set for the same whitepoint dur­ing production, they can be exchanged at any time within one
location and swapped in existing dual- or multi-screen configu-

rations without calibration.
monitor is calibrated to the
DICOM display function
for luminance and to a

8

desired whitepoint (color
of the white). NEC Display

7

Solutions’ patent-pending
X-LightTM technology (Fig.

1) has the unique ability
to control and adjust the
luminance and whitepoint

6

via an integrated fast-feed­back internal backlight
sensor, which continuously

monitors and realigns
these settings to maintain
the factory calibration
throughout the life of the
monitor. X-Light technol­ogy also alleviates the
color shift of the backlight
to the yellow spectrum.

Standalone calibration and monitor matching. NEC MultiSync

MD Series monitors have been designed to maintain their fac-

tory calibration. However, if calibration or matching (Fig. 2) to

a replacement is required, the monitors can be configured using

the built-in, standalone algorithm programmed into the monitor’s

firmware. This feature is useful for monitors that are not used in

a setup where calibration can easily be performed with a PC and

external software or non-supported

operating systems.

GammaComp™ MD calibration and

conformance software. Quality control

and calibration/matching can also

be accomplished using GammaComp

Figure 2.

USB

RESULT OF

MEASUREMENT

Target:
Luminance
400 cd/m

x cord 0.265
y cord 0.320

MD (shipped with display), ensuring
consistent image quality on a single
display system. The software main-

Source Display

Target Display

tains the monitor’s conformance to the
DICOM standard, while providing an
easy-to-use QA environment for medi-

2

USB

cal imaging. Optionally, GammaComp

Monitor matching and re­duced downtime. X-Light

helps reduce service costs

MD Administrator provides centralized
control and management of multiple
display systems.

Display matching in the field