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Lenovo LS2421p Wide 23.6" Full HD LED TFT Monitor - Overview

ThinkVision LS2421p Wide 23.6" TFT Monitor (4015)
Machine Type - Models: 4015-LN1,4015-LS1
Features and specifications

The Lenovo LS2421p Wide is a 23.6"Full HD LED TFT Monitor which adopts the latest W-LED backlight technology and provides great display quality and saves power consumption up to 40% compared to previous product. It offers digital visual interface (HDMI1.3). It comes in a high gloss ID, transparent bezel, touch OSD buttons. It has high display performance, such as 10M:1 high dynamic contrast ratio and Novo Vision, and a 4ports USB hub for ease use.

The Lenovo LS2421p Wide is packed with green features including Mercury free by adopting white LED backlights, arsenic-free glass, and is Energy-Star 5.1 and TCO Displays 5.2 compliant.

Features and Benefit:

  • Viewable size: 23.6 inch (598 mm)
  • Native resolution of 1920 x 1080
  • White LED backlights
  • Aspect ratio: 16:9
  • Pixel Pitch: 0.2715mm
  • Brightness: 300 cd/m2 (typical)
  • Color Gamut 72%
  • Contrast ratio: 1000:1 (typical)
  • Dynamic Contrast Ratio 10M:1
  • View angles(Horizontal/Vertical, @CR=10:1): 170 degrees / 160 degrees
  • Respond time: 5ms (on/off, typical)
  • Internal Power supply
  • Power consumption (typical/max): 30 watts/35 watts
    • Tilt stand for viewing comfort
  • 4Ports USB Hub
    • Touch OSD Buttons, and Direct access button for automatic image setup and NovoVision allows quick and easy monitor setup
    • Supports High Definition Content Protection (HDCP)
    • Compliance with ENERGY STAR 5.1 requirements
    • Kensington Lock slot for security
    • TCO Displays 5.2 compliance
  • Analog and HDMI1.3 connections
  • Meets 100mm VESA standard(**) for mounting
    • Certified for Microsoft Windows 7/Vista/XP


(**) VESA is a registered trademark of the Video Electronics Standards Association.

Feature Specification
Monitor Size 23.6 inch Wide (598 mm)
Viewable image size 23.6-inch (598 mm)
Maximum viewable area (W x H) 521.3x 293.2mm
Native Resolution 1920 x 1080
Contrast ratio (typical) 1000:1
Dynamic Contrast Ratio 10M:1
Brightness (typical) 300 cd/m2
Aspect Ratio 16 : 9
Pixel pitch 0.2715mm
Colors 16.7 million
Horizontal viewing angle 170 degrees (at 10:1 contrast ratio)
Vertical viewing angle 160 degrees (at 10:1 contrast ratio)
Response time (typical) 5 ms
Video input 15-pin D-sub, HDMI1.3
Signal cable - 15-pin D 1.8 m
Signal HDMI 1.8 m
SYNC Type Separate TTL
SYNC on Green No
Bezel width 24.6 mm
Tilt -5~20 degrees backward
Swivel None
Lift None
Pivot None
VESA mount 100 mm
Kensington lock slot Yes
OSD language 8
Preset display modes 32 (VGA), 32(HDMI)
User-defined display modes 20
VESA DDC capable 2B/CI
Power supply Internal power adapter
Power cord 1.8 m
ISO 9241-307 compliant Yes
JEIDA compliance Yes
FCC B compliance Yes
TCO display 5.2 Yes
EU Directive 2002/95/EC (RoHS) Yes
EU Directive 2002/96/EC (WEEE) Yes
China RoHS Yes
China Monitor Energy Efficiency Standard Tier 1 Yes

On- Screen Display (OSD) Menu Control:

For ease of use, there is direct access for when using D-Sub input, auto setup, and brightness. There is a media enhancement function called "NovoVision" for automatic contrast and brightness adjustment, color correction, and color enhancement according to different applications.

There are four modes: text, Internet and picture, video, and split demo.

Monitor controls and features include:

  • Brightness/contrast
  • NovoVision :
    • Text mode
    • Internet and picture mode
    • Video ode
    • Split demo mode
  • Image position:
    • Horizontal position
    • Vertical position
  • Image setup: -
    • Automatic
    • Manual
  • Image properties: Color
  • Options:
    • Information
    • Menu language
    • Menu position
    • Factory default
    • Accessibility
  • Exit

The OSD menu supports the following languages: English, Spanish, Italian, German, French, Japanese, Russia, and Chinese


Physical specifications
Dimensions and weight of the monitor and stand:
Parameter Unpacked Packed
Height 7.08inch (179.8mm) 5.90 inch (150.0 mm)
Width 16.34 inch (415.0 mm) 19.37 inch (492.0mm)
Depth 22.44 inches inch (572.0mm) 24.96 inch (634.0mm)
Weight 9.79lb (4.44 kg) 13.80lb (6.26 kg)


Power requirements
  • Input voltage: 90 to 264 V ac
  • Frequency: 47-63Hz
  • Power consumption:
    • Maximum: 35 watts
    • Typical: 30 watts
    • VESA standby: <1 watts
    • VESA suspend: <1 watts
    • VESA off: <0.5 watts
    • Maximum earth leakage current

Terminal - PE(Protective Earth)
Maximum 3.5 mA at 90V-264 V
Terminal - (Accessible parts and circuits not connected to protective earth)
Maximum 0.25 mA at 90V-264 V


Ambient temperature and relative humidity
Parameter Temperature Relative humidity Altitude
Operating 0 to 40 deg.C 8 to 80 % 0 to 8,000 ft (2,438 m)
Shipping -20 to 60 deg. C 5 to 95 % 0 to 40,000 ft (12,192 m)
Storage -20 to 60 deg. C 5 to 95 % 0 to 40,000 ft (12,192 m)



Declared acoustical noise emissions LWAU = 4.5 bels or less. The noise emission level stated is the declared (upper limit) A-weighted sound power level, in bels, for a random sample of monitors. All measurements are made in accordance with ANSI S12.10 and reported in conformance with ISO/DIS 7779.



Three years - Customer Carry-in or Mail-in using Rapid Replacement Service

  • Announce date: 2 Aug 2011 (Worldwide excluding Japan, Austria, Germany)
  • Planned availability date: 16 Aug 2011 (Worldwide excluding Japan, Austria, Germany)


Hardware compatibility

The Lenovo LS2421p Wide LCD monitor is intended to operate with system units or video adapters that generate a video output signal falling within the following specification:

Parameter Monitor
Maximum resolution 1920 x 1080 pixels
Optimum resolution 1920 x 1080 pixels
Maximum pixel rate 205 MHz(VGA) 165 MHz (DVI)


Preset Display Modes
(H x V Pixels)
Incoming video refresh rate
640 x 350 70 Hz NI
640 x 480 60 Hz NI
72 Hz NI
75 Hz NI
720 x 400 70 Hz NI
800 x 600 56 Hz NI
60 Hz NI
72 Hz NI
75 Hz NI
832 x 624 75 Hz NI
1024 x 768 60 Hz NI
70 Hz NI
75 Hz NI
1152 x 864 75 Hz NI
1280x768 60Hz NI
1280 x800 60Hz NI
1280 x 1024 60 Hz NI
70 Hz NI
75 Hz NI
1366 x 768 60Hz NI
1440 x 900 60 Hz NI
1440 x 900 75 Hz NI
1600 x 900 60Hz NI
75 Hz NI
1680x1050 60Hz-R NI
60Hz NI
75Hz NI(VGA only)
1920x1080 60Hz NI
60Hz-R NI

Note (**): This is the optimum display mode for the best displayed image. Reduced image quality may result if used in other modes due to the image scaling limitations of LCD monitor technology.

  • User modes: 20 (VGA mode), 20 (HDMI mode)
Software requirements
  • Microsoft Windows XP
  • Microsoft Windows Vista
  • Microsoft Windows 7


Agency approvals


  • c(TUV)us (USA/Canada)
  • IEC950 CB Report
  • NEMKO (Nordic)
  • CCC (China)
  • SASO (Saudi)
  • Gost (Russia)-----------Lenovo
  • PSB (Singapore)
  • BSMI (Taiwan)
  • SABS-LoA (South Africa
  • KC(Korea)
  • AAA-S(Serbia)
  • UKSERTCOMPUTER (Ukraine)------------Lenovo
  • ISC (Cambodia)
  • KONCAR(Croatia)
  • KUCAS(Kuwait)
  • STZ (Uzbekistan)
  • INSM(Moldavia)
  • PSE(Japan)


  • FCC B (USA)
  • CE (Europe)
  • CE (Europe) DoC
  • VCC! (Japan)
  • C-Tick
  • JEIDA (Japan)
  • KC (Korean)
  • BSMI (Taiwan)
  • CCC (China)
  • SABS - CoC (South Africa)
  • AAA-RSO (Serbia)
  • PSE (Japan)


  • ISO 9241-307
  • TCO 5.2
  • TCO 5.2 100% DoC
  • CECP
  • EnergyStar 5.1
  • CEL Tier 1 (China)
  • E-Standby
  • VOC test


Additional Product information
Service parts - Parts listing for your product
Publications - Instruction manuals for your product
Troubleshooting - Step-by-step instructions for solving common monitor issues
Lenovo ThinkVision Monitors ( ) - ThinkVision monitor information
Lenovo Support: Monitors - Reference Guide - A list of monitors
Lenovo Support: Monitor Accessories - Reference Guide - A list of monitor accessories (stands, arms, displayport cables, cable locks, soundbars)
Lenovo Support: DisplayPort Cables - Product and compatibilityinformation for DisplayPort monitor cables
Lenovo Support: Graphic Cards - Reference Guide - A list of graphic cards for desktop and workstation systems
Lenovo Support: Accessories - Reference Guide - A list of accessories for notebook, desktop, workstation, server accessories - Additional information on options and accessories, including the Option Compatibility Matrix (OCM)
Personal Systems Reference (PSREF) - Comprehensive information on the features and technical specifications on Lenovo products

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Documento de identidad : PD016441
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