Description
LG 20U401A-B 19.5″ HD+ 75Hz 2ms TN Monitor
20U401A-B.AFB
A compact 19.5″ workspace monitor that’s simple, reliable, and easy to deploy. The LG 20U401A-B delivers HD+ clarity at 75Hz on a fast TN panel, with HDMI + D-Sub (VGA) for modern and legacy PCs. Eye-comfort features (Flicker Safe, Reader Mode, Color Weakness Mode) help during long study or office sessions, and the 75×75 VESA mount plus tilt stand make positioning straightforward.
Key Features
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19.5″ TN (Twisted Nematic) Panel
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Resolution: HD+ (1600×900) • 16:9
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Refresh Rate: 75Hz
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Response Time: 2ms gray-to-gray (Faster)
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Colour Gamut: NTSC 72% (CIE 1931)
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Colour Depth: 16.7 Million Colours (8-bit, 6-bit+FRC)
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Brightness / Contrast: 250 cd/m² • 600:1
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Connectivity (Video): 1× HDMI 1.4, 1× D-Sub (VGA) • Headphone Out (3-pole)
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Ergonomics: Tilt −5° to +15°
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VESA Mount: 75 × 75 mm
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Colour: Black
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3 Year Warranty
Why it’s a great choice
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Budget-friendly fleet option: Modern HDMI plus legacy VGA covers old and new PCs—ideal for offices, schools, and POS.
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Smoother than 60Hz: 75Hz refresh makes scrolling and UI motion feel snappier for everyday work.
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Eye-comfort first: Flicker Safe, Reader Mode, and Color Weakness Mode help reduce strain over long sessions.
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Easy to place: Tilt stand and 75×75 VESA make it simple to set up on arms or small desks.
Specifications:
| Category | Detail |
|---|---|
| Panel / Surface | TN • Anti-glare |
| Screen / Aspect | 19.5″ • 16:9 |
| Native resolution / refresh | 1600×900 @ up to 75Hz |
| Pixel pitch / PPI | 0.2700 × 0.2664 mm • ~94 PPI |
| Viewing angles (CR≥10) | 90° (R/L) • 65° (U/D) |
| Brightness / contrast | 250 cd/m² (typ) • 600:1 (typ) |
| Colour / depth | NTSC 72% (CIE 1931) • 16.7M (8-bit, 6-bit+FRC) |
| Response time | 2ms GTG (Faster) |
| Features | Flicker Safe • Reader Mode • Color Weakness Mode • Super Resolution+ • DAS • Black Stabilizer • Crosshair |
| Video input / audio | HDMI 1.4 (in) • D-Sub (VGA) • 3.5mm headphone out |
| Ergonomics / mount | Tilt −5° to +15° • VESA 75×75 mm |
| Dimensions (with stand) | 463.8 × 364.6 × 190 mm (W×H×D) |
| Dimensions (w/o stand) | 463.8 × 276.4 × 38.4 mm |
| Weight | 2.25 kg (with stand) • 1.9 kg (panel only) • 3.25 kg (boxed) |
| Power | External adapter • 100–240V, 50/60Hz • <0.3 W sleep/DC off |
| Warranty | 3 Year |






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