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| Brand | Lenovo |
| Type | Monitor |
| Size | 21" (inches) |
| Panel | TN |
| Refresh Rate | 75 Hz |
| Min Response Time | 5 ms |
| Screen Aspect Ratio | 16:9 |
| Screen Resolution | 1920 x 1080 |
| General Info | |
|---|---|
| Type | Monitor |
| Year | 2017 |
| Brand | Lenovo |
| Model Number | ThinkVision E21 |
| Alias | 61B9JAR1US 61B9JAT1EU |
| Size | 21" (inches) |
| Panel | TN |
| Display | |
| Screen Size Class | 21" (inches) |
| Diagonal Size | 21.5 in 54.6 cm 546.1 mm 1.79 ft |
| Screen Width | 18.03 in 45.8 cm 457.92 mm 1.5 ft |
| Screen Height | 10.14 in 25.8 cm 257.58 mm 0.85 ft |
| Display Type | TN |
| Display Bit Depth | 8 bits (6 bits + FRC) |
| Frame Rate Control | Yes |
| Max Number of Colors | 16777216 |
| Bits | 24 |
| Screen Aspect Ratio | 16:9 |
| Screen Resolution | 1920 x 1080 |
| Screen Pixel Pitch | 0.239 mm |
| Screen Pixel Density | 106 ppi |
| Backlight Source | W-LED |
| NTSC 1953 | 72 % |
| Screen Brightness | 250 cd/m² |
| Static Screen Contrast | 1000 : 1 |
| Dynamic Screen Contrast | 3000000 : 1 |
| Screen Horizontal Viewing Angle | 170 ° |
| Screen Vertical Viewing Angle | 160 ° |
| Display Minimum Response Time | 5 ms |
| Display Coating | Anti-glare/Matte |
| 3D | No |
| Size, weight, color | |
| Case Width with Stand | 19.31 in 49.1 cm 490.5 mm 1.61 ft |
| Case Height with Stand | 14.6 in 37.1 cm 370.9 mm 1.22 ft |
| Case Depth with Stand | 8.07 in 20.5 cm 204.9 mm 0.67 ft |
| Case Weight with Stand | 2.64 kg 6 lbs |
| Case Color | Black |
| Hardware | |
| Built-in Camera | No |
| Connectivity | 1 x DisplayPort 1.2 1 x D-sub |
| Audio | |
| Features | |
| Cool Features | Low Blue Light DDC/CI HDCP (High-bandwidth Digital Content Protection) |
| Extra Features | Anti-theft stand lock slot - Kensington |
| Ergonomics | |
| Vesa Mount Support | Yes |
| VESA Interface Standard Size | 100 x 100 |
| Removable VESA Stand | Yes |
| Height Adjustment | No |
| Landscape or Portrait Pivot Support | No |
| Left or Right Swivel Support | No |
| Forward and Backward Tilt Support | Yes |
| Forward Tilt | 5 ° |
| Backward Tilt | 22 ° |
| Frequency and Interpolation | |
| Vertical Digital Frequency | 50 Hz - 75 Hz |
| Horizontal Digital Frequency | 30 kHz - 83 kHz |
| Power | |
| 110V | 100 V - 120 V |
| 220V | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Electric Power in Amperes | 1.5 A |
| Power Consumption When Device is Off | 0.3 W |
| Power Consumption in Sleep Mode | 0.3 W |
| Average Power Consumption | 18 W |
| Maximum Power Consumption | 23 W |
| Accessories | |
| Extras | D-sub cable |
| Certificates and Standards | |
| Licenses | BSMI C-Tick CCC CE CECP ENERGY STAR 7.0 FCC Class B KC RoHS TCO Certified Display 7.0 TCO Edge 2.0 TÜV/GS VCCI WHQL (Windows 10; Windows 8.1; Windows 8; Windows 7) |
| Usage and Storage Requirements | |
| Safe Operating Temperature Level | 0 °C - 45 °C 32 °F - 113 °F |
| Safe Operating Humidity Level | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
| Internal Storage Humidity | 5 % - 95 % |
| Max Operating Altitude | 5000 |
| Max Storage Altitude | 12192 |
