NEC MD Series - page 2

Factory calibration and

consistency. Using state-

of-the-art equipment

during production, each

NEC MultiSync MD Series

monitor is calibrated to the

DICOM display function

for luminance and to a

desired whitepoint (color

of the white). NEC Display

Solutions’ patent-pending

X-LightTM technology (Fig.

1) has the unique ability

to control and adjust the

luminance and whitepoint

via an integrated fast-feed-

back internal backlight

sensor, which continuously

monitors and realigns

these settings to maintain

the factory calibration

throughout the life of the

monitor. X-Light technol-

ogy also alleviates the

color shift of the backlight

to the yellow spectrum.

Monitor matching and re-

duced downtime. X-Light

helps reduce service costs

as it enables a more ﬂexible use of display equipment. Since all

X-Light-equipped monitors are set for the same whitepoint dur-

ing production, they can be exchanged at any time within one

location and swapped in existing dual- or multi-screen conﬁgu-

rations without calibration.

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

MD (shipped with display), ensuring

consistent image quality on a single

display system. The software main-

tains the monitor’s conformance to the

DICOM standard, while providing an

easy-to-use QA environment for medi-

cal imaging. Optionally, GammaComp

MD Administrator provides centralized

control and management of multiple

display systems.

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 read-

ing 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.

Display matching in the ﬁeld

USB

Source Display Target Display

RESULT OF

MEASUREMENT

Target:

Luminance

400 cd/m2

x cord 0.265

y cord 0.320

Figure 2.

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

Figure 1.