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Black 31.5 inch 4K monitor on tilt adjustable stand

LG Electronics

LG Electronics 32BN50U-B 31.5" 4K monitor

SKU CH-7EH9-RZ2XT MPN 32BN50U-B

A 31.5 inch 4K VA panel with HDR10, 90% DCI-P3 colour, AMD FreeSync, built-in speakers and a tilt-adjustable stand

  • Screen size31.5 in (80 cm)
  • Display resolution3840 × 2160 (4K)
  • Refresh frequency60 Hz
  • Panel typeVA
  • Pixel response time4 ms
  • Power draw(Typ.): 45 W Power Consumption (Max.): 55 W Power Consumptio
  • Sharp 4K detail on a 31.5" VA panel
  • Wide 178° viewing angles keep colours consistent
  • HDR10 with 90% DCI-P3 coverage for richer media
  • AMD FreeSync reduces tearing at 60 Hz
  • Tilt stand adjusts -5° to +15° for comfort

31.5-inch 4K VA monitor for colour-critical work

The 31.5-inch LG 32BN50U-B delivers 3840 x 2160 resolution on a VA panel with 3000:1 contrast and 1.07 billion colours. DCI-P3 coverage reaches 90 percent typical, and HDR10 support adds highlight detail for creative review. AMD FreeSync and a 60 Hz refresh rate keep motion smooth for casual gaming. The tilt-adjustable stand moves from minus five to plus fifteen degrees and the unit is 100 x 100 mm VESA mountable.

Typical power draw and quiet operation

Typical consumption is rated at 45 W, rising to a maximum of 55 W under full brightness. Energy Star measured draw is 30.75 W, while sleep mode drops to 0.5 W and DC-off stays below 0.3 W. The monitor runs on 100 to 240 VAC at 50 or 60 Hz with no external brick. Built-in MAXXAUDIO speakers provide desktop sound without extra hardware or fan noise.

Steady output during long sessions

The VA panel maintains 350 cd/m² brightness and 178-degree viewing angles across extended use, so colour and contrast do not shift when viewed off-centre. A 4 ms response time limits ghosting in moving content, while Dynamic Action Sync and Black Stabilizer preserve visibility in dark scenes. FreeSync continues to match frame pacing at 60 Hz without stutter, making the display reliable for all-day productivity or media playback.

How it compares

Measured against everything we stock in Desktop PC Monitors, at today’s prices. Recalculated every night.

Price $309.99
Pricier than about 71% of the 530 comparable items (median $193.49).
Screen size 31.5 in (80 cm)
Higher than about 86% of the 479 comparable items (median 27 in).
Refresh frequency 60 Hz
Lower than about 70% of the 303 comparable items (median 100 Hz).

Specifications

Product
Brand nameLG
Model name32BN50U-B
Case colorBlack
Display
Screen size31.5 in (80 cm)
Display resolution3840 × 2160 (4K)
Refresh frequency60 Hz
Panel typeVA
Pixel response time4 ms
Image brightness350 cd/m2
Widescreen formatYes
Highest resolution3840 × 2160
Viewing angles178° (H) / 178° (V)
Pixel pitch0.18159 × 0.18159 mm
Colors displayed1.07 Billion
Contrast3000:1
Screen ratio16:9
Horizontal scan rate60 Hz
Variable refresh rateFreeSync (AMD Adaptive Sync)
Audio & video
Integrated speakersYes
Integrated webcamNo
HDCP compatibilityYes
Ports & slots
Video connectors1 x DisplayPort / 2 x HDMI
HDMI ports2
DisplayPort connectors1
USB 2.0 ports0
Power
Power draw(Typ.): 45 W
Power Consumption (Max.): 55 W
Power Consumption (Energy Star): 30.75 W
Power Consumption (Sleep Mode): 0.5 W
Power Consumption (DC Off): Less than 0.3 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityTilt: -5° to +15°
VESA mounting pattern100 × 100 mm
Product dimensions20.2 in × 28.1 in × 8.2 in with stand
16.5 in × 28.1 in × 1.8 in without stand
Product weight17.2 lb with stand
15 lb without stand
Shipping weight10.16 kg
Package size819 × 508 × 229 mm
More details
Complies withENERGY STAR

Questions about this item

How do I attach the 31.5" 4K monitor to the included stand without stripping the screws?

Align the stand neck with the rear mounting bracket, then tighten the captive thumbscrews by hand until snug; the step most people miss is seating the neck fully before turning the screws, otherwise the threads cross.

What part will need replacement first on the LG 32BN50U-B after several years of daily use?

The internal LED backlight is rated for tens of thousands of hours; when brightness eventually drops below the 350 cd/m2 spec, the whole panel assembly is the serviceable unit.

At what point does the VA panel hit its contrast limit during a long HDR10 session?

The 3000:1 static contrast ratio holds until the panel reaches its thermal steady state; after that, local dimming cannot deepen blacks further because the monitor lacks zone dimming.

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