Mini-LED 65" Peak Brightness — Six Panels on a Colorimeter

Mini-LED brightness claims are nearly meaningless without window size context. We measured six 2026 65" panels with a Klein K10-A on a 10% window, 25%, 50%, and 100% full-field sustained for 90 seconds.

Setup

• Klein K10-A profiled against a Konica Minolta CS-2000
• Room ambient at 5 lux (controlled darkroom)
• Filmmaker / HDR cinema picture mode, no eco features
• 90-second sustained measurement to capture ABL behavior

Peak luminance (nits)

What stands out

Samsung's QN95F leads on raw 10%-window peak but its ABL drops 76% from 10% to 100% — typical of high-zone mini-LED. The QN95F's 4,096 dimming zones give it the brightest highlights in our test but also create the most aggressive ABL behavior; the panel can't sustain that peak across the entire screen without thermal-protection clamping.

Sony's Bravia 9 trades 15% peak for 33% better 100% sustained, which matters more for daytime sports viewing. Sony's tone-mapping algorithm is also the most accurate to mastering reference at 1,000–4,000 nit content.

The OLED reference (LG C5) is exactly half as bright at the 10% window (1,480 nits vs 2,840 on the Samsung QN95F). In a controlled darkroom this is invisible because both saturate eye perception. In a bright living room with 1,200 lux ambient, mini-LED's 2× brightness is the deciding factor.

EOTF tracking (lower is more accurate)

The Sony Bravia 9 leads on tone-mapping accuracy — its XR Cognitive Processor handles HDR roll-off more gracefully than competitors. TCL and Hisense lag here despite competitive raw brightness; they over-roll-off shadow detail to protect highlight headroom.

Blooming behavior

We pushed a 50-nit subtitle on a 0-nit field across the 65" screen:

• Samsung QN95F (4,096 zones): no visible bloom at 1 m distance, faint halo at 50 cm.
• Sony Bravia 9 (2,048 zones): faint bloom at 1 m, visible halo at 50 cm.
• TCL QM7K (3,000 zones): faint bloom at 1 m, moderate halo at 50 cm.
• Hisense U8QG (2,400 zones): moderate bloom at 1 m, obvious halo at 50 cm.
• LG QNED99 (1,800 zones): obvious bloom at 1 m.
• LG C5 (OLED): no bloom — physics of per-pixel emission.

Power consumption

Sustained 100% white at full brightness, measured at the wall:

• Samsung QN95F: 218 W
• Sony Bravia 9: 195 W
• TCL QM7K: 164 W
• Hisense U8QG: 158 W
• LG QNED99: 142 W
• LG C5: 152 W (ABL active)

Mini-LED brightness costs power. The Samsung's 4,096-zone backlight draws nearly 50% more than the OLED reference. Annual electricity cost difference at 6 hours/day: ~$40 at average US rates.

Compared to OLED — when each wins

• Mini-LED wins at 10%-window peak (1.5×+ brighter), at 100% APL sustained (3× brighter), for daytime sports and broadcast TV, and for HDR scenes with large bright areas (snow, sky, beaches).
• OLED wins at black-level uniformity, at EOTF tracking in cinematic content, at off-axis viewing, at low-blooming UI overlays, and at thin profile / wall-mount aesthetics.

See our LG C5 vs Samsung S95F for the OLED-on-OLED comparison; mini-LED enters the picture when peak brightness over 1,500 nits is a hard requirement, or when burn-in concerns rule out OLED. Our why display brightness numbers are misleading explainer covers how to read this data without being fooled by spec-sheet headline numbers.