Display: 21.5 in, IPS, W-LED, 1920 x 1080 pixels
Viewing angles (H/V): 178 ° / 178 °
Brightness: 250 cd/m²
Static contrast: 1000 : 1,
Dynamic contrast: 100000000 : 1
Refresh rate: 55 Hz - 75 Hz
Brand, series, model
Information about the brand, series, model and model aliases.
| Brand | Acer |
| Model | ET221Qbi |
| Model year | 2017 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 21.5 in (inches) |
| Diagonal | 546.1 mm (millimeters) 54.61 cm (centimeters) 21.5 in (inches) 1.7917 ft (feet) |
| Width | 476.64 mm (millimeters) 47.664 cm (centimeters) 18.7654 in (inches) 1.5638 ft (feet) |
| Height | 268.11 mm (millimeters) 26.811 cm (centimeters) 10.5555 in (inches) 0.8796 ft (feet) |
| Panel type | IPS |
| Panel bit depth | 8 bits (6 bits + FRC) |
| FRC | Yes |
| Colors | 16777216 colors 24 bits |
| Aspect ratio | 1.778:1 16:9 |
| Resolution | 1920 x 1080 pixels Full HD / 1080p |
| Pixel pitch | 0.248 mm (millimeters) 0.0248 cm (centimeters) 0.0098 in (inches) 0.0008 ft (feet) |
| Pixel density | 102 ppi (pixels per inch) 40 ppcm (pixels per centimeter) |
| Backlight | W-LED |
| Brightness | 250 cd/m² (candela per square meter) |
| Static contrast | 1000 : 1 |
| Dynamic contrast | 100000000 : 1 |
| Horizontal viewing angle | 178 ° (degrees) |
| Vertical viewing angle | 178 ° (degrees) |
| Minimum response time | 4 ms (milliseconds) 0.0040 s (seconds) |
| Coating | Anti-glare/Matte |
3D
3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.
| 3D | No |
Frequencies
Information about the horizontal and vertical refresh rates/frequencies.
| Horizontal frequency (digital) | 30 kHz - 80 kHz (kilohertz) |
| Vertical frequency (digital) | 55 Hz - 75 Hz (hertz) |
Power supply and consumption
Information about the power supply and consumption, energy efficiency class, etc.
| 110V | 100 V - 120 V (volts) |
| 220V | 220 V - 240 V (volts) |
| Alternating current frequency | 50 Hz - 60 Hz (hertz) |
| Power consumption (off) | 0.5 W (watts) |
| Power consumption (sleep) | 0.5 W (watts) |
| Power consumption (average) | 16 W (watts) |
Dimensions, weight and color
Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.
| Colors | Black |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes |
| VESA interface | 100 x 100 mm |
| Removable stand | Yes |
| Height adjustment | No |
| Landscape/portrait pivot | No |
| Left/right swivel | No |
| Forward/backward tilt | Yes |
| Forward tilt | 5 ° (degrees) |
| Backward tilt | 20 ° (degrees) |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 1 x HDMI 1 x D-sub 1 x 3.5 mm Audio Out |
| High-bandwidth Digital Content Protection (HDCP) |
Features
Some additional functional features of the model.
| Features | Flicker-free technology Low Blue Light |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | CE ENERGY STAR 7.0 TCO Certified Displays 7.0 |
Operating and storage conditions
There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.
| Operating temperature | 0 °C - 40 °C (degrees Celsius) 32 °F - 104 °F (degrees Fahrenheit) |
| Operating humidity | 20 % - 80 % (percent) |
| Storage temperature | -20 °C - 65 °C (degrees Celsius) -4 °F - 149 °F (degrees Fahrenheit) |
| Storage humidity | 10 % - 90 % (percent) |
Additional features
Information about other features.
| Additional features | Anti-theft stand lock slot - Kensington |
