LCD TV with the panel removed, showing the grid of lit LED backlights
Generic photo: RobertKuhlmann · CC BY-SA 3.0

Halos or glow around bright objects on a mini-LED / local-dimming TV (blooming)

Blooming is a built-in trade-off of zoned backlights: a zone is larger than the bright object it lights. Separate normal blooming from a real fault (dead zone, stuck-on zone, patchy uniformity) with full-field test patterns, then tune settings.

Single source ~30 min easyBrands: Hisense, TCL, Samsung, Sony, Vizio, All

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Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Halos or glow around bright objects on a mini-LED / local-dimming TV (blooming) · OnCall Tech