BenQ RD280U
28.2" IPS · 3840× 2560 · 164 PPI
Optimal Viewing Distance
53cm
Retina distance: 53.4cm / 21.0in
Too Close
< 16cm
Perfect Zone
53cm
Good Zone
80cm
Acceptable Zone
1.3m
Too Far
2.1m
53cm Perfect Zone
Retina quality — pixels are invisible at this distance.
80cm Good Zone
Sharp image — slightly past the ideal distance but still excellent.
1.3m Acceptable Zone
The screen appears smaller — you're starting to miss fine details.
2.1m Too Far
You're not using your screen's full resolution. Move closer.
Specifications
| Brand | BenQ |
|---|---|
| Model | RD280U |
| Screen Size | 28.2" |
| Resolution | 3840×2560 |
| Panel | IPS |
| Refresh Rate | 60 Hz |
| Variable Refresh Rate (VRR) | None |
| Response Time | 5 ms GTG |
| HDR Certification | DisplayHDR 400 |
| SDR Brightness | 350 nits |
| HDR Peak Brightness | 400 nits |
| Contrast Ratio | 1:1,200 |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W |
| Color Gamut | sRGB 100% · DCI-P3 93% · Adobe RGB 87% |
| Viewing Angle | 178° — Excellent |
| Pixel Density (PPI) | 164 |
| Aspect Ratio | 3:2 |
| Year | 2024 |
Category Ranking
Pixel Density (PPI)
#18 / 67in category
93 PPI164 PPI224 PPI
HDR Peak Brightness
#51 / 67in category
250 nits400 nits2000 nits
DCI-P3 Color Gamut
#59 / 63in category
79%93%100%
Refresh Rate60 Hz
StandardHighUltra
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Frequently Asked Questions
What is the optimal viewing distance for the BenQ RD280U?
The optimal viewing distance for the BenQ RD280U (28.2") is approximately 53cm. At this distance, individual pixels become invisible to the human eye.
What is the PPI of the BenQ RD280U?
The BenQ RD280U has a pixel density of 164 PPI (pixels per inch) with a 3840×2560 resolution on a 28.2" display.
Is the BenQ RD280U good for desktop work?
With 164 PPI and a 28.2" IPS display, the BenQ RD280U is very good for desktop work when viewed from the recommended distance of 53cm.
Methodology & Sources
Formula: Retina distance (cm) = 3438 / PPI. Displayed values are rounded for readability.
Sources: Official manufacturer spec sheets and product pages. Specs are normalized before comparisons.
Last updated:
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