2 Mega-Pixel 20.1" monochrome LCD high contrast ratio of 1000:1 and dual analog/digital interfaces. (Model: ME201L)

2 Mega-Pixel 20.1" monochrome LCD high contrast ratio of 1000:1 and dual analog/digital interfaces. (Model: ME201L)

2 Mega-Pixel 20.1" monochrome LCD high contrast ratio of 1000:1 and dual analog/digital interfaces. (Model: ME201L)

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Medivisor Grayscale Calibration capability for DICOM Part 14 compliant grayscale presentation

Calibrates luminance and gamma to enable smooth grayscale display that is faithful to DICOM GSDF.

Calibration function to accurately adjust gamma, color temperature, and luminance
Medical image displays are commonly required to display grayscale according to the Grayscale Standard Display Function (GSDF) defined by DICOM Part 14. The calibration function creates the optimum conditions for a medical imaging display by adjusting luminance levels, color temperature, and grayscale characteristics to achieve DICOM GSDF compliant grayscale output.

Models supported: All ME/CCL Series models, except ME183L and CCL192 plus
Note: Calibration requires an optional calibration kit*

How it works
The calibration function corrects the driving level of the LUT (Look-up Table), a memory that specifies the LCD driving, and writes it in the LUT. In other words, calibration adjusts grayscale characteristics, color temperature (color displays only), and luminance.

The luminance for each driving level is corrected such that the resulting curve matches the DICOM GSDF achieving smooth grayscale output.

The luminance for each driving level is corrected such that the resulting curve match the DICOM GSDF and smooth grayscale is achieved.

Graph is for explanatory purpose only.

* Calibration kit (optional)
Package contents
  • Calibration software: Medivisor for i2 Series, Medivisor Grayscale, Medivisor Color, Medivisor for ME201L/ME181L
  • QA Medivisor
  • Utility Software for i2 Series
  • GSDF Checker
  • Luminance sensor

Simultaneous display of 1276 shades of gray Built-in 10bit LUT (Look-up Table) to reproduce beautiful grayscale
The built-in LUT selects the most appropriate 256 shades of gray (8bit) out of 1021 shades (10bit) to realize finer and smoother grayscale.

* A viewer software that supports TOTOKU's multi-shade display system is reguired for 11-bit simultaneous display.

Built-in LUT (Look-up Table) to reproduce beautiful grayscale and TOTOKU's technology for simultaneous display of multiple shades
General-purpose displays are capable of 256 shades of gray, but due to unevenness and grayscale discontinuity, they cannot reproduce and display the subtle shading difference required for medical image displays. TOTOKU's medical image displays display the most appropriate 256 shades (8bit) out of a maximum of 12241 shades of gray using the built-in LUT. This technology realizes much finer and smoother grayscale than possible with general-purpose displays.

Moreover, combining with a TOTOKU display customized conversion table with an integrated viewer, up to 2048 shades of gray can be provided to produce film-like images on the display.

DICOM GSDF compliant curves according to the number of simultaneously available gray shades

DICOM GSDF compliant curves by the number of simultaneously available gray shades

* Images are provided for explanatory purposes only.

Luminance stabilizing system λ-Sentinel for stable display of medical images Luminance stabilizing system λ-Sentinel for stable display of medical images
Automatically corrects and luminance fluctuation due to startup drift, temperature change, and aging to provide stable luminance.

Luminance stabilizing system to provides continuous stable display for medical images

A change in luminance affects gamma characteristics and therefore has adverse effects on diagnostic imaging. TOTOKU'smedical image displays are equipped with a luminance stabilizing system that automatically compensates for luminance changes due to startup drift, temperature change, and aging.

Luminance stabilizing system λ-Sentinel

λ-Sentinel II Luminance stabilizing system λ-Sentinel II

λ-Sentinel II consists of a luminance sensor and a luminance control circuit. The luminance sensor attached in front of the screen constantly monitors and accurately stabilizes luminance on the screen surface by sending feedback to the control circuit.

Newly developed luminance stabilizing system λ-Sentinel IILuminance sensor
  • With luminance fluctuation caused by the LCD module taken into account, highly accurate luminance control is achieved.
  • Actual luminance measurements including intermediate luminance are taken on the screen surface.
  • Build-in luminance sensor provided with i2 models enables even simpler calibration without attaching the calibration sensor.

Note: λ-Sentinel II module is built into the the ME/CCL Series i model displays. Other models are equipped with λ-Sentinel (TOTOKU's conventional system).

Dual Interface
ME201L /r provides for a digital interface and an analog interface.

Pairing service to match display colors (Optional)
Due to the variation in colors among cold cathode fluorescent lamps (CCFL) used as backlights, slight differences in color tone between displays are unavoidable. Medical imaging often uses two displays side-by-side, and it is very important that they present
TOTOKU offers a display pairing service that match colors of two displays using a high-definition spectrophotometer before shipping.

Models supported: All monochrome medical image displays

* Consult your dealer for more information about the pairing service.

Pairing service to match colors of displays

Worldwide medical safety standards Worldwide medical safety standards
This display is certified under various medical safety standards that are much more demanding than those for general-purpose IT equipment.


Model Name ME201L /r
LCD Panel Technology 20.1-inch, Monochrome, TFT active matrix
Display Area 408.0mm x 306.2mm
Pixel Pitch 0.255mm x 0.255mm
Contrast Ratio 1000:1 (typ)
Maximum Luminance 700cd/m² (factory-set to 410cd/m²)
Viewing Angle 170° horizontal and vertical (typ)
Visual Performance Available Resolution 640 x 480 (VGA) to 1600 x 1200 (UXGA) (Analog/Digital)
Grayscale 256 shades out of 1021 shades of gray
Input Signal Input Sync Signal Digital DVI/Analog D-sub
Plug and Play DDC2B compliant
Input Power Supply Input AC Adapter 100V-240V (-10%, +6%) 50/60Hz
Maximum Power Consumption 50W (typ), (with power management feature)
Features Calibration Control Luminance, Gamma (A calibration kit is required.)
USB Hub USB Rev. 2.0 compliant, Self-powered
USB upstream connector (x1), USB downstream connector (x2)
Standards UL2601-1, CSA C22.2 No.601.1, MDD/CE, FDA 510(k), MIC, CCC, FCC-B, VCCI-B
Physical Characteristics Dimensions (WxHxD) Landscape: 453mm x 461/523mm x 220mm
Portrait: 353mm x 511/573mm x 220mm
Weight Approx. 11.5kg (Approx. 7.1kg without tilt stand)
Tilt Stand Tilt, swivel, landscape/portrait rotation
Mount 100mm VESA compliant
Security Slot Antitheft security slot (Panel and tilt stand)
Accessories AC adapter, 3P power cord, DVI cable, VGA cable, Serial cable, USB cable, User manual


ME201L /r