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| General Info | ||
|---|---|---|
| Model Number | Lenovo D24-40 | Acer EK221QHbi |
|
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2022 | 2023 |
| Brand | Lenovo | Acer |
| Model Number | D24-40 | EK221QHbi |
| Alias | 67A2KAC6 | EK221Q Hbi EK221 QHbi |
| Display | ||
| Screen Size Class | 24" (inches) | 22" (inches) |
| Diagonal Size | 23.8 in 60.4 cm 604.478 mm 1.98 ft |
21.5 in 54.6 cm 546 mm 1.79 ft |
| Screen Width | 20.75 in 52.7 cm 527.04 mm 1.73 ft |
18.86 in 47.9 cm 479 mm 1.57 ft |
| Screen Height | 11.67 in 29.6 cm 296.46 mm 0.97 ft |
10.24 in 26 cm 260 mm 0.85 ft |
| Display Type | VA | VA |
| Display Bit Depth | 8 bits | 8 bits (6 bits + FRC) |
| Frame Rate Control | Yes | |
| Max Number of Colors | 16777216 | 16777216 |
| Bits | 24 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 1920 x 1080 | 1920 x 1080 |
| Screen Pixel Pitch | 0.275 mm | 0.249 mm |
| Screen Pixel Density | 92 ppi | 101 ppi |
| Screen-to-Body Ratio | 89.02 % | |
| Backlight Source | W-LED | W-LED |
| sRGB | 103.2 % | |
| NTSC 1953 | 72 % | 72 % |
| Screen Brightness | 250 cd/m² | 250 cd/m² |
| Static Screen Contrast | 3000 : 1 | 3000 : 1 |
| Dynamic Screen Contrast | 3000000 : 1 | 100000000 : 1 |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Display Minimum Response Time | 4 ms | 4 ms |
| Display Average Response Time | 6 ms | |
| Display Coating | Anti-glare/Matte | Anti-glare/Matte |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.06 in 5.2 cm 52.2 mm 0.17 ft |
|
| Case Weight | 2.8 kg 6 lbs |
2.1 kg 5 lbs |
| Case Width with Stand | 21.24 in 53.9 cm 539.4 mm 1.77 ft |
19.41 in 49.3 cm 492.9 mm 1.62 ft |
| Case Height with Stand | 16.25 in 41.3 cm 412.7 mm 1.35 ft |
14.84 in 37.7 cm 376.9 mm 1.24 ft |
| Case Depth with Stand | 8.25 in 21 cm 209.5 mm 0.69 ft |
7.56 in 19.2 cm 192 mm 0.63 ft |
| Case Weight with Stand | 3.3 kg 7 lbs |
2.5 kg 6 lbs |
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x D-sub |
1 x HDMI 1.4 1 x D-sub |
| Audio | ||
| Features | ||
| Cool Features | Brightness Calibration Flicker-free technology Natural Low Blue Light 3-side NearEdgeless Design AMD FreeSync technology |
Low Blue Light ZeroFrame Design AMD FreeSync technology Flicker-free technology |
| Extra Features | Anti-theft stand lock slot - Kensington | |
| Ergonomics | ||
| Case Width | 21.24 in 53.9 cm 539.4 mm 1.77 ft |
19.41 in 49.3 cm 492.9 mm 1.62 ft |
| Case Height | 12.81 in 32.5 cm 325.4 mm 1.07 ft |
|
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | No |
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | No | No |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 22 ° | 20 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 50 Hz - 75 Hz | 48 Hz - 100 Hz |
| Horizontal Digital Frequency | 30 kHz - 81 kHz | 32 kHz - 110 kHz |
| Screen Interpolation Measurement Unit | NULL | NULL |
| Accessories | ||
| Extras | HDMI cable | HDMI cable |
| Certificates and Standards | ||
| Licenses | CCC China Energy Efficiency Standard Tier 1 RoHS TÜV Rheinland Eye Comfort Windows Certification |
CCC CE FCC ISO9241-307 J-Moss PSE RoHS VCCI-B |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 45 °C 32 °F - 113 °F |
0 °C - 40 °C 32 °F - 104 °F |
| Safe Operating Humidity Level | 10 % - 80 % | 20 % - 85 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
|
| Internal Storage Humidity | 5 % - 95 % | |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Lenovo D24-40 | Acer EK221QHbi |
