LG C4 55"
55" OLED · 3840× 2160 · 80 PPI
Optimal Viewing Distance
1.1m
Retina distance: 109cm / 42.9in
Too Close
< 33cm
Perfect Zone
1.1m
Good Zone
1.6m
Acceptable Zone
2.7m
Too Far
4.4m
1.1m Perfect Zone
Retina quality — pixels are invisible at this distance.
1.6m Good Zone
Sharp image — slightly past the ideal distance but still excellent.
2.7m Acceptable Zone
The screen appears smaller — you're starting to miss fine details.
4.4m Too Far
You're not using your screen's full resolution. Move closer.
Specifications
| Brand | LG |
|---|---|
| Model | C4 55" |
| Screen Size | 55" |
| Resolution | 3840×2160 |
| Panel | OLED |
| Refresh Rate | 144 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium |
| Response Time | 0.1 ms GTG |
| HDR Certification | None |
| SDR Brightness | 296 nits |
| HDR Peak Brightness | 1049 nits |
| Contrast Ratio | 1:1,000,000 |
| Ports | 4x HDMI |
| Color Gamut | sRGB 100% · DCI-P3 98.7% · Adobe RGB 96% |
| Viewing Angle | 178° — Excellent |
| Pixel Density (PPI) | 80 |
| Aspect Ratio | 16:9 |
| Year | 2024 |
Category Ranking
Pixel Density (PPI)
#2 / 28in category
57 PPI80 PPI118 PPI
HDR Peak Brightness
#24 / 28in category
677 nits1049 nits5000 nits
DCI-P3 Color Gamut
#10 / 28in category
94%98.7%100%
Refresh Rate144 Hz
StandardHighUltra
Size Variants
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Frequently Asked Questions
What is the optimal viewing distance for the LG C4 55"?
The optimal viewing distance for the LG C4 55" (55") is approximately 1.1m. At this distance, individual pixels become invisible to the human eye.
What is the PPI of the LG C4 55"?
The LG C4 55" has a pixel density of 80 PPI (pixels per inch) with a 3840×2160 resolution on a 55" display.
Is the LG C4 55" good for home entertainment?
With 80 PPI and a 55" OLED display, the LG C4 55" is excellent for home entertainment when viewed from the recommended distance of 1.1m.
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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