Screen Uniformity Test
Pick a color and brightness, then Fullscreen. Good panels show perfectly even color edge-to-edge. Uneven brightness, tinted corners, or cloudy patches reveal uniformity issues.
Inspect clouding from varied angles — IPS glow ramps near corners whereas OLED should stay planar until ABL trims. Prefer dim bias lighting to avoid glare washing subtle mura.
Tip: check at 20%, 50%, and 80% brightness — uniformity issues often appear only in a specific brightness band. Step 2–3 feet back for a less-biased look. Dim your room for clouding tests. In fullscreen, use ↑ / ↓ to nudge brightness by 5%.
How to use
- View straight-on versus oblique extremes where IPS glow intrinsically amplifies periphery deltas.
FAQ
Photo documentation?
Use manual camera exposure locking so phone auto-HDR mis-reports vignette amplitude.
Overview
Complements backlight bleed tooling by emphasizing entire-field luminance evenness—not only corner halos isolated to darkest stops.