Display 4 differ Display diagonal 60.5 cm (23.8") 60.5 cm (23.8") Display resolution 1920 x 1080 pixels 1920 x 1080 pixels Native aspect ratio 16:9 16:9 Display technologyDiffers LED LCD Touchscreen No No HD type Full HD Full HD Panel type IPS IPS LED backlightKnown for one — Unknown — not stated by the source Backlight typeKnown for one — Unknown — not stated by the source W-LED Display brightness (typical) 250 cd/m² 250 cd/m² Response time 5 ms 5 ms Display surfaceKnown for one — Unknown — not stated by the source Matt Anti-glare screenKnown for one — Unknown — not stated by the source Screen shape Flat Flat Supported graphics resolutionsDiffers 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 720 (HD 720), 1280 x 800 (WXGA), 1440 x 900 (WXGA+), 1600 x 900, 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080) 1920 x 1080 (HD 1080) Aspect ratio 16:9 16:9 Contrast ratio (typical) 1000:1 1000:1 Contrast ratio (dynamic)Known for one — Unknown — not stated by the source 50000000:1 Dynamic contrast ratio marketing nameKnown for one — Unknown — not stated by the source SmartContrast Maximum refresh rateKnown for one — Unknown — not stated by the source 75 Hz Viewing angle, horizontal 178° 178° Viewing angle, vertical 178° 178° Display number of coloursKnown for one — Unknown — not stated by the source 16.7 million colours Pixel pitchKnown for one — Unknown — not stated by the source 0.275 x 0.275 mm Pixel densityKnown for one — Unknown — not stated by the source 93 ppi Horizontal scan rangeKnown for one — Unknown — not stated by the source 30 - 85 kHz Vertical scan rangeKnown for one — Unknown — not stated by the source 48 - 75 Hz Viewable size, horizontalDiffers 29.6 cm 52.7 cm Viewable size, verticalDiffers 52.7 cm 29.6 cm Digital horizontal frequencyKnown for one — Unknown — not stated by the source 30 - 85 kHz Digital vertical frequencyKnown for one — Unknown — not stated by the source 48 - 76 Hz Sync-on-green (SOG)Known for one — Unknown — not stated by the source Display diagonal (metric)Known for one — Unknown — not stated by the source 60.5 cm DDC/CIKnown for one — Unknown — not stated by the source Haze rateKnown for one — Unknown — not stated by the source 25% Surface hardnessKnown for one — Unknown — not stated by the source 3H Colour gamut standardKnown for one — Unknown — not stated by the source sRGB, NTSC Colour gamutKnown for one — Unknown — not stated by the source 89.9% sRGB coverage (typical)Known for one — Unknown — not stated by the source 103.8% NTSC coverage (typical)Known for one — Unknown — not stated by the source 89.9% 3D No No 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 — Unknown — not stated by the source 23.8 inch/60.5 cm Ports & interfaces 1 differ Built-in USB hubKnown for one — Unknown — not stated by the source USB hub versionKnown for one — Unknown — not stated by the source 2.0 Number of upstream portsKnown for one — Unknown — not stated by the source 1 USB Type-A downstream ports quantityKnown for one — Unknown — not stated by the source 4 VGA (D-Sub) ports quantityKnown for one — Unknown — not stated by the source 1 DVI portKnown for one — Unknown — not stated by the source DVI-D ports quantityKnown for one — Unknown — not stated by the source 1 HDMI ports quantityDiffers 1 1.4 HDMI versionKnown for one — Unknown — not stated by the source 1.4 DisplayPorts quantityKnown for one — Unknown — not stated by the source 1.2 DisplayPort versionKnown for one — Unknown — not stated by the source 1.2 Headphone outKnown for one — Unknown — not stated by the source PC Audio inKnown for one — Unknown — not stated by the source HDCPKnown for one — Unknown — not stated by the source HDMIKnown for one — Unknown — not stated by the source Ergonomics identical VESA mountingKnown for one — Unknown — not stated by the source Panel mounting interfaceKnown for one — Unknown — not stated by the source 100 x 100 mm Cable lock slotKnown for one — Unknown — not stated by the source Cable lock slot typeKnown for one — Unknown — not stated by the source Kensington Height adjustmentKnown for one — Unknown — not stated by the source Adjustable height (max)Known for one — Unknown — not stated by the source 15 cm PivotKnown for one — Unknown — not stated by the source Pivot angleKnown for one — Unknown — not stated by the source -90 - 90° SwivellingKnown for one — Unknown — not stated by the source Swivel angle rangeKnown for one — Unknown — not stated by the source -175 - 175° Tilt adjustmentKnown for one — Unknown — not stated by the source Tilt angle rangeKnown for one — Unknown — not stated by the source -5 - 30° On Screen Display (OSD)Known for one — Unknown — not stated by the source On Screen Display (OSD) languagesKnown for one — Unknown — not stated by the source Portuguese, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Polish, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian Number of OSD languagesKnown for one — Unknown — not stated by the source 21 Plug and PlayKnown for one — Unknown — not stated by the source LED indicatorsKnown for one — Unknown — not stated by the source Operation, Stand-by Other features identical Compatible operating systemsKnown for one — Unknown — not stated by the source Mac OS X; Windows 10 / 8.1 / 8 / 7 On/off switch TV tuner integrated No No Exterior finish typeKnown for one — Unknown — not stated by the source Textured Compliance certificatesKnown for one — Unknown — not stated by the source RoHS, WEEE EasyRead modeKnown for one — Unknown — not stated by the source Effective viewing areaKnown for one — Unknown — not stated by the source 527 x 296.5 mm Energy efficiency class (legacy scale)Known for one — Unknown — not stated by the source D Heavy metals freeKnown for one — Unknown — not stated by the source Hg (mercury) LowBlue modeKnown for one — Unknown — not stated by the source Monitor sync input signalKnown for one — Unknown — not stated by the source Separate Sync; Sync on Green No flickeringKnown for one — Unknown — not stated by the source Power consumption (economy mode)Known for one — Unknown — not stated by the source 10 W Signal inputKnown for one — Unknown — not stated by the source VGA (Analogue); DVI-D (digital, HDCP); DisplayPort 1.2; HDMI 1.4 User guideKnown for one — Unknown — not stated by the source Mean time between failures (MTBF)Known for one — Unknown — not stated by the source 70000 h CertificationKnown for one — Unknown — not stated by the source CE Mark, CB, FCC Class B, SEMKO, cETLus, UKRAINIAN, TUV Ergo, TUV/GS, CU-EAC Picture enhancementKnown for one — Unknown — not stated by the source SmartImage Regulatory ApprovalsKnown for one — Unknown — not stated by the source CE Mark; CB; FCC Class B; SEMKO; cETLus; UKRAINIAN; TUV Ergo; TUV/GS; CU-EAC User controlsKnown for one — Unknown — not stated by the source SmartImage; Input; Brightness; Menu; Power On/Off Supplied AC adapter typeKnown for one — Unknown — not stated by the source AC Country of originKnown for one China — Unknown — not stated by the source 
