ThinkVision LT1421 14-inch Wide Flat Panel Monitor - Overview

ThinkVision LT1421 with Protective Case (1452-DB6) ThinkVision LT1421 with Screen Cover (1452-DS6)


ThinkVision LT1421 14-inch Wide Flat Panel Monitor (1452)
Machine Type - Models: 1452-DB6, 1452-DS6


Features and specifications

The ThinkVision LT1421 14-inch Wide Flat Panel Monitor (1452) features:

  • 14-inch (355.6 mm) viewable image size
  • Display resolution of 1366 x 768 matching mainstream Notebook resolution
  • Slim (21.5mm, as slim as 9.3mm)
  • Light weight (monitor: 0.84kg/1.8lbs; with protective case:1.35kg/2.97lbs)
  • Photo frame tilt stand adjustments for viewing comfort (12 degree~40 degree)
  • Brightness adjustment button for 16 level brightness
  • USB 2.0 connection
  • USB powered o Kensington lock slot
  • The Electronic Product Environmental Assessment Tool (EPEAT) Gold certified
  • No VESA mount
  • Available in Raven Black
Feature Specification
Monitor Size 14-inch (355.6 mm)
Viewable image size 14-inch (355.6 mm)
Maximum viewable area 310.80mm (H) x 175.26mm (V)
Contrast ratio (typical) 400:1
Brightness (typical) 200 cd/m2
Colors 262K
Viewing angle (typical) Horizontal: 90 degrees (at 10:1 contrast ratio)
Vertical: 50 degrees (at 10:1 contrast ratio)
Response time (typical) 8 ms
Pixel pitch 0.227 mm
Bezel width 12.1 mm
USB Soundbar Attachment No
Kensington Lock slot Yes
Composit SYNC No
SYNC on Green No
Native resolution 1366 x 768
User controls Digital
Lockable controls Yes
On-Screen Display (OSD) No
Preset display modes 1
Power management capable Yes - VESA DPMS
Power supply USB 2.0
USB cord 1.8 m (detachable)
Tilt stand adjustment 12 degree ~ 40 degree
JEIDA compliance No
FCC B compliance Yes
MPR-2 emission compliance No
MPR-3 emission compliance No
TCO Environmental Label No
EU Directive 2002/95/EC (RoHS) Yes


Physical specifications
Parameter Unpacked Packed
Width 13.19-inch (335.0mm) 15.16-inch (385 mm)
Depth 0.85-inch (21.5mm) 10.51-inch (267mm)
Height 8.58-inch (217.9mm) 2.48-inch (63 mm)
Weight (monitor only) 1.8lb (0.84 kg) - - - - - - - - - -
Weight (with Cover) 2.25lbs (1.02kg) 2.91lbs (1.32kg)


Power requirements
  • Input voltage: 5VDC
  • Power consumption:
    • Maximum: 5 watts
    • Normal use: 4.2 watts typical (Typical power consumption is tested under EPA 5.1 standard)
    • Standby: < 0.1 watt
    • Suspend: < 0.1 watt
    • Off: 0 watt

Note: Actual power consumption depends on the chosen display mode, the images displayed, and user control settings.


Ambient temperature and relative humidity
Parameter Temperature Relative humidity Altitude
Operating 0 to 40 deg.C 10 to 80 % 0 to 3,657 m
Shipping -20 to 60 deg. C 5 to 95 % 0 to 10,668 m
Storage -20 to 60 deg. C 5 to 95 % 0 to 3,657 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.


  • One monitor
  • Attached tilt stand that cannot be removed
  • 1.8-meter (5.9-foot) USB cable (Y-type) that can be removed
  • Screen cover
  • CD containing multilingual user's guide, setup test pattern, and Windows installation file
  • Quick start and safety poster

Note: Since this monitor is powered by USB cable, there is no power cord in the box.



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

  • Announce date: 16 Aug 2011 (Worldwide)
  • Availability date: 14 Sep 2011 (Worldwide)


Hardware compatibility

The display is intended to operate with system units or video adapters that generate a video output signal falling within the following specification:

Parameter Monitor
Native resolution 1366 x 768 pixels
Maximum bandwidth 480 MHz

The monitor supports VESA Standard Timings as detailed in Display Monitor Timing Specification, Version 1.8, dated September 17, 1998, for the following modes:

  • 1366 x 768 at 60 Hz
Preset Display Modes
(H x V Pixels)
Incoming video refresh rate
1366 x 768 pixels 60 Hz

The monitor is supplied with a detachable 1.8-meter (5.9-foot) USB Y-Type cable. This cable has two A-type Standard connector for system unit connection and one Mini/B Plug for monitor connection. This model has been tested with ThinkPad systems. It is compatible with systems and graphics adapters that comply with the rele vant parts of VESA and industry standards and guidelines for computer display monitor timing v1.8, adopted September 17, 1998. Supported display modes and number of colors are a function of the attaching system unit. The full range of display modes, refresh rates, and number of colors available with this monitor may not be available or supported with all combinations of system units, their operating systems, and application software. Implementation of monitor Plug and Play follows the VESA DDC standard. This standard must also be implemented in the attaching system unit hardware and software to be effective.

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Software requirements
  • Microsoft Windows 8.1
  • Microsoft Windows 8
  • Microsoft Windows 7
  • Microsoft Windows Vista
  • Microsoft Windows XP


Ergonomics/Emissions/Environmental/Compatibility Approvals
  • Software: Microsoft Windows 7/Vista/XP
  • EU Directive 2002/96/EC - WEEE
  • EU Directive 2002/95/EC - RoHS
  • China RoHS
  • EuP
  • ULE Gold


Agency approvals - EMI/Safety
    • Australian
    • BELLIS (Belarus)
    • BSMI (Taiwan)
    • CCC (China)
    • CE (Europe)
    • cULus+ICES (USA/Canada)
    • KC (Korea)
    • Gost (Russia)
    • IEC950 CB Report
    • JEITA (Japan)
    • KEBS (Kenya)
    • KONCAR (Croatia )
    • KVALITET (Serbia)
    • NEMKO (Nordic)
    • New Zealand
    • NOM (Mexico)
    • OTAN (Kazakhstan)
    • SASO (Saudi)
    • SONCAP (Nigeria)
    • TUV bauart (Germany)
    • TUV-S (Argentina)
  • EMI
    • Australian
    • BSMI (Taiwan)
    • CCC (China)
    • CE (Europe) DoC
    • FCC B (USA) DoC
    • IC (Canada)
    • KC (Korea)
    • New Zealand
    • SABS (South Africa)
    • VCCI (Japan)


  • Supported display modes are a function of the attaching system unit and video subsystem. The full range of display modes available with these monitors may not be available or supported with all combinations of system units, their operating systems, video adapter cards, and application software.
  • Horizontal- and vertical-synchronization signal timings are critical in order to achieve acceptable screen images. As a consequence, support for all possible variations in H- and V-sync timings for any display mode cannot be assumed.
  • Adjustment of the user controls to enlarge the image to its maximum size requires that the signal timings of the display mode being used fall within the monitor-timing specifications.
  • This monitor provides FCC class B - residential installation - compliance in all display modes.
  • Implementation of monitor power management follows the VESA DPMS standard. This standard must also be implemented in the attaching system unit hardware and software for monitor power management to be effective. The system implementation must provide user-adjustable, power-down delay periods. The monitor power management function is invoked only after appropriate signals are received from an attached system unit or video adapter.
  • Certain functions require the system unit to be similarly configured, so all monitor functions may not be enabled when attached to aparticular system unit.
  • A 14-inch (355.6 mm) flat-panel LCD monitor has more than 3 million subpixel transistors laid over an area exceeding 84 square inches. Cost-effective manufacturing processes introduce a small number of defective subpixel transistors.


Additional Product information
Product Recycling Program Information
Lenovo Limited Warranty
Compliance Statement for ThinkVision LT1421
Configuration files - Drivers and downloads for your product
Publications - Publications in different languages for your product
Personal Systems Reference (PSREF) - Comprehensive information on the features and technical specifications on Lenovo products
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  • Document ID: PD015702
  • Last Updated :23 Jan 2015
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