Display 12 differ Display diagonalDiffers 101.6 cm (40") 68.6 cm (27") Display resolutionDiffers 3840 x 2160 pixels 2560 x 1440 pixels Native aspect ratio 16:9 16:9 Display technologyKnown for one LED — Unknown — not stated by the source Touchscreen No No HD typeDiffers 4K Ultra HD Quad HD Panel typeKnown for one VA — Unknown — not stated by the source LED backlightKnown for one — Unknown — not stated by the source Backlight typeKnown for one W-LED — Unknown — not stated by the source Display brightness (typical)Differs 300 cd/m² 350 cd/m² Response timeDiffers 4 ms 1 ms Screen shape Curved Curved Supported graphics resolutionsDiffers 3840 x 2160 2560 x 1440 Supported video modesKnown for one 2160p — Unknown — not stated by the source Aspect ratioKnown for one 16:9 — Unknown — not stated by the source Contrast ratio (typical)Differs 4000:1 3000:1 Contrast ratio (dynamic)Known for one 20000000:1 — Unknown — not stated by the source Dynamic contrast ratio marketing nameDiffers SmartContrast Mega Contrast Viewing angle, horizontal 178° 178° Viewing angle, vertical 178° 178° Display number of coloursDiffers 1.07 billion colours 1.073 billion colours Pixel pitchKnown for one 0.23 x 0.23 mm — Unknown — not stated by the source Pixel densityKnown for one 110 ppi — Unknown — not stated by the source Horizontal scan rangeKnown for one 30 - 99 kHz — Unknown — not stated by the source Vertical scan rangeKnown for one 56 - 80 Hz — Unknown — not stated by the source Viewable size, horizontalDiffers 88.5 cm 59.7 cm Viewable size, verticalDiffers 49.8 cm 33.6 cm Digital horizontal frequencyKnown for one 30 - 160 kHz — Unknown — not stated by the source Digital vertical frequencyKnown for one 23 - 80 Hz — Unknown — not stated by the source Sync-on-green (SOG)Known for one — Unknown — not stated by the source Display diagonal (metric)Known for one 101.6 cm — Unknown — not stated by the source DDC/CIKnown for one — Unknown — not stated by the source Colour gamut standardDiffers sRGB, NTSC sRGB Colour gamutKnown for one 100% — Unknown — not stated by the source NTSC coverage (typical)Known for one 100% — Unknown — not stated by the source 3DKnown for one No — Unknown — not stated by the source Separate H/V syncKnown for one — Unknown — not stated by the source Display sRGBKnown for one — Unknown — not stated by the source Display panel sizeKnown for one 40 inch / 101.6 cm — Unknown — not stated by the source Display brightness (min)Known for one — Unknown — not stated by the source 300 cd/m² Maximum refresh rateKnown for one — Unknown — not stated by the source 144 Hz sRGB coverage (typical)Known for one — Unknown — not stated by the source 125% Adobe RGB coverageKnown for one — Unknown — not stated by the source 92% Quantum dot color technologyKnown for one — Unknown — not stated by the source Factory-calibratedKnown for one — Unknown — not stated by the source Performance 2 differ NVIDIA G-SYNCKnown for one No — Unknown — not stated by the source AMD FreeSyncDiffers No Flicker-free technologyKnown for one — Unknown — not stated by the source Windows operating systems supportedDiffers Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 H Mac operating systems supportedKnown for one Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Ma — Unknown — not stated by the source VESA Adaptive Sync supportKnown for one — Unknown — not stated by the source Game modeKnown for one — Unknown — not stated by the source Ergonomics 3 differ VESA mountingKnown for one — Unknown — not stated by the source Panel mounting interfaceKnown for one 100 x 100 mm — Unknown — not stated by the source Cable lock slotDiffers No Cable lock slot typeKnown for one Kensington — Unknown — not stated by the source Height adjustmentDiffers No Tilt adjustment Tilt angle rangeKnown for one -5 - 10° — Unknown — not stated by the source Picture-in-PictureKnown for one — Unknown — not stated by the source On Screen Display (OSD) On Screen Display (OSD) languagesKnown for one Portuguese, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Polish, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian — Unknown — not stated by the source Number of OSD languagesKnown for one 21 — Unknown — not stated by the source Plug and Play LED indicatorsDiffers Power Adjustable height (max)Known for one — Unknown — not stated by the source 14.5 cm PivotKnown for one — Unknown — not stated by the source Pivot angleKnown for one — Unknown — not stated by the source -2 - 92° SwivellingKnown for one — Unknown — not stated by the source Swivel angle rangeKnown for one — Unknown — not stated by the source -15 - 15° Tilt down angle rangeKnown for one — Unknown — not stated by the source -5 - 0° Tilt up angle rangeKnown for one — Unknown — not stated by the source 0 - 15° Black eQualizer functionKnown for one — Unknown — not stated by the source Custom key functionKnown for one — Unknown — not stated by the source Other features 1 differ Compatible operating systemsKnown for one Mac OS X; Windows 10 / 8.1 / 8 / 7 — Unknown — not stated by the source On/off switch TV tuner integrated No No Picture-by-Picture (PbP)Known for one — Unknown — not stated by the source Exterior finish typeKnown for one Gloss — Unknown — not stated by the source ECO mode Heavy metals freeKnown for one Hg (mercury), Pb (lead) — Unknown — not stated by the source Monitor sync input signalKnown for one Separate Sync; Sync on Green — Unknown — not stated by the source No flickering Power consumption (economy mode)Known for one 32.61 W — Unknown — not stated by the source Signal inputKnown for one VGA (Analog ); DisplayPort x 2; HDMI (1.4) - MHL x 1; HDMI (2.0) - MHL x 1 — Unknown — not stated by the source Mean time between failures (MTBF)Known for one 70000 h — Unknown — not stated by the source Power managementKnown for one — Unknown — not stated by the source CertificationKnown for one RoHS, WEEE, CECP, PSE, VCCI, BSMI, CE Mark, cETLus, CU-EAC, EPA, FCC Class B, ICES-003, J-MOSS, KUCAS, PSB, RCM, SASO, SEMKO, TUV Ergo, TUV/GS, UKRAINIAN, MEPS, KC, KCC — Unknown — not stated by the source MultiViewKnown for one PBP (4x devices); PIP (2x devices) — Unknown — not stated by the source Picture enhancementKnown for one SmartImage — Unknown — not stated by the source Regulatory ApprovalsKnown for one WEEE; CECP; PSE; VCCI; BSMI; CE Mark; cETLus; CU-EAC; EPA; FCC Class B; ICES-003; J-MOSS; KUCAS; PSB; RCM; SASO; SEMKO; TUV Ergo; TUV/GS; UKRAINIAN; MEPS — Unknown — not stated by the source User controlsKnown for one SmartImage; Multiview; User; Menu; Power On/Off — Unknown — not stated by the source Supplied AC adapter typeDiffers LCD LED sRGB coverage (min)Known for one — Unknown — not stated by the source 120% Samsung Eye Saver ModeKnown for one — Unknown — not stated by the source USB charging portKnown for one — Unknown — not stated by the source 
