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| General Info | ||
|---|---|---|
| Model Number | Acer CB281HK | Lenovo ThinkVision Pro2840m |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2015 | 2014 |
| Brand | Acer | Lenovo |
| Model Number | CB281HK | ThinkVision Pro2840m |
| Alias | CB281HKymjdpprz | 60B4RAR6US |
| Display | ||
| Screen Size Class | 28" (inches) | 28" (inches) |
| Diagonal Size | 28 in 71.1 cm 711.2 mm 2.33 ft |
27.9 in 70.9 cm 708.538 mm 2.32 ft |
| Screen Width | 24.45 in 62.1 cm 620.93 mm 2.04 ft |
24.45 in 62.1 cm 620.93 mm 2.04 ft |
| Screen Height | 13.44 in 34.1 cm 341.28 mm 1.12 ft |
13.44 in 34.1 cm 341.28 mm 1.12 ft |
| Display Curvature | 1600 | |
| Display Manufacturer | Innolux | |
| Display Type | TN | TN |
| Display Bit Depth | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) |
| Frame Rate Control | Yes | Yes |
| Max Number of Colors | 1073741824 | 1073741824 |
| Bits | 30 | 30 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 3840 x 2160 | 3840 x 2160 |
| Screen Pixel Pitch | 0.162 mm | 0.162 mm |
| Screen Pixel Density | 157 ppi | 157 ppi |
| Screen-to-Body Ratio | 84.24 % | 71.79 % |
| Backlight Source | W-LED | W-LED |
| sRGB | 100 % | |
| NTSC 1953 | 72 % | |
| Screen Brightness | 300 cd/m² | 270 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 1 | 3000000 : 1 |
| Screen Horizontal Viewing Angle | 170 ° | 170 ° |
| Screen Vertical Viewing Angle | 160 ° | 160 ° |
| Display Minimum Response Time | 1 ms | 5 ms |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.54 in 6.5 cm 64.5 mm 0.21 ft |
2.29 in 5.8 cm 58.2 mm 0.19 ft |
| Case Width with Stand | 25.93 in 65.9 cm 658.7 mm 2.16 ft |
26.22 in 66.6 cm 665.9 mm 2.18 ft |
| Case Height with Stand | 15.81 in 40.2 cm 401.5 mm 1.32 ft |
20.73 in 52.6 cm 526.43 mm 1.73 ft |
| Case Depth with Stand | 9.31 in 23.7 cm 236.5 mm 0.78 ft |
11.41 in 29 cm 289.9 mm 0.95 ft |
| Case Weight with Stand | 8 kg 18 lbs |
10.19 kg 22 lbs |
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x DVI-D Dual Link 1 x 3.5 mm Audio Out 1 x HDMI 2.0 (MHL) 1 x DisplayPort 1.2 |
3 x USB 3.0 (downstream) 1 x USB 3.0 (upstream) 2 x DisplayPort 1.2 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 (Input mini) 1 x HDMI 1.4 (MHL) 2 x USB 2.0 (downstream) 1 x USB 2.0 (upstream) |
| Audio | ||
| Audio Speakers | 2 x 2W | 2 x 3W |
| Features | ||
| Cool Features | Picture-By-Picture Picture-in-Picture Flicker-free technology HDCP (High-bandwidth Digital Content Protection) |
DDC/CI HDCP (High-bandwidth Digital Content Protection) |
| Extra Features | Anti-theft stand lock slot - Kensington | |
| Ergonomics | ||
| Case Width | 25.93 in 65.9 cm 658.7 mm 2.16 ft |
26.22 in 66.6 cm 665.9 mm 2.18 ft |
| Case Height | 15.04 in 38.2 cm 381.9 mm 1.25 ft |
17.45 in 44.3 cm 443.3 mm 1.45 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | Yes |
| Height Adjustment Range | 150 mm 15 cm 5.9055 in 0.4921 ft |
110 mm 11 cm 4.3307 in 0.3609 ft |
| Landscape or Portrait Pivot Support | Yes | Yes |
| Left Pivot | 90 ° | 0 ° |
| Right Pivot | 90 ° | 90 ° |
| Left or Right Swivel Support | Yes | Yes |
| Left Swivel | 60 ° | 45 ° |
| Right Swivel | 60 ° | 45 ° |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 35 ° | 25 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 60 Hz | 24 Hz - 70 Hz |
| Horizontal Digital Frequency | 26 kHz - 140 kHz | |
| Accessories | ||
| Extras | DisplayPort cable DVI-D cable |
DisplayPort cable HDMI cable USB 2.0 cable USB 3.0 cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR ErP TCO Certified Displays 6.0 |
BSMI C-Tick CCC CE CECP ENERGY STAR 6.0 Epeat Gold FCC Class B KC RoHS TCO Certified Display 6.0 TCO Edge 1.2 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 |
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| Safe Operating Humidity Level | 10 % - 80 % | |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
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| Internal Storage Humidity | 5 % - 95 % | |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Acer CB281HK | Lenovo ThinkVision Pro2840m |
