42″ 2,500 nit High Brightness LCD DS421LT4

Key Features

  • 2,500 nits Brightness
  • Direct LED Backlit
  • IPS Panel Technology
  • Blackening Defect Free in Direct Sunlight
  • 1920 x1080 Full HD Native Resolution
  • Narrow bezel

SKU: DS421LT4 Category:


The DS421LT4 is a 42-inch professional ultra-high brightness LCD. With a maximum brightness rating of 2,500 nits, this display features a local dimming LED back light for incredible, high contrast picture quality and low power consumption. The DS421LT4 features an intelligent thermal management system for ultra-quiet 24/7 operation.


LED Backlit with Local Dimming

LED backlighting is both more energy efficient and provides a much brighter image than traditional CCFL backlights. Due to the compact nature of LEDs, displays are also typically thinner. The DS421LT4 utilizes a direct LED backlighting system which is not only more energy efficient than traditional CCFL backlights, it is also considerably brighter. DynaScan has applied its LED expertise to create a collection of ultra-high brightness LCDs which can easily be viewed in direct sunlight such as storefront windows or outdoor enclosures. The display features a local dimming LED backlight technique for a remarkably high contrast picture. With direct local dimming, darker areas of an image receive less backlighting than lighter areas, as opposed to CCFL and edge-lit LED backlights which illuminate an entire screen at all times causing blacks and dark areas to appear washed out.


Color Temperature and Quality

Ensuring the color and brightness of each screen in a tiled matrix matches can be time-consuming and requires additional calibration hardware. Each screen is individually color calibrated to the D65 (6500K) CIE color standard. Not only does this produce a true, natural white, the color of all screens will be uniform.

Auto Brightness Control

Different external lighting conditions require different brightness levels. An onboard light sensor measures the ambient light in the area and automatically adjusts the image accordingly.

Intelligent Thermal Management

Heat generated by the display is radiated away from high-temperature areas while a sensor continuously monitors the internal temperature to protect the system from overheating. This is accomplished with ultra-quiet fans.

Full HD Resolution

With Full HD 1080p resolution, the DS421LT4 produces a super sharp image for easy-to-read text and incredible detail.

LCD Panel Type41.92 inches IPS LCD
Native Resolution1920 x 1080
BacklightDirect LED
Brightness2,500 nit
Default Color TemperatureD65 (6500 K)
Contrast Ratio3,000:1
Color Depth8 bit
Response Time9 ms (typ)
Viewing Angle178° / 178°
Light Life Time50,000 hrs (typ)
Panel SurfaceAR Haze 1%, 3H
Power SupplyInternal
Rated Voltage100 ~ 240V, 50 / 60Hz
Power On Mode180 W (typ), 275 W (max)
Power Saving Mode< 1 W
AC Out< 100 W
Bezel Width (T/B/L/R)5.9 / 5.9 / 5.9 / 5.9 mm
Cabinet ColorBlack
Monitor Dimension (LxHxD, w/o stand)945.8 x 539.8 x 87.4 mm
Monitor Weight (set/package)18 kg / 21.5 kg
VESA Mounting (dimension)400 x 200 mm
OrientationPortrait / Landscape
Daisy ChainRS-232, DVI (image cloning)
Network ControlRS-232, LAN
OSD Menu RotationYes
Proof of Image RetentionYes
Dimming Control (DCR)Yes
Built-in Video Wall SupportUp to 15x15
On/Off SettingYes
Ambient Light SensorYes
Total Turn-on TimeYes
Internal Temperature SensorYes
Network ControlRS-232, RJ45
Carrying HandlesYes
DVI-DIn (x1), Out (x1) (Supports HDMI)
DisplayPortIn (x1)
RS-232In (x1), Out (x1)
RJ-45In (x1)
AudioIn (x1), Out (x1)
Included AccessoriesPower cable, DVI Cable, RJ45 cable, RS232 cable, remote control, VCD, QSG
Operating Temperature0°C ~ 45°C
Storage Temperature-20°C ~ 60°C
Humidity10% ~ 80% RH Non-condensing

Specifications are subject to change without notice.

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