Preparation
- Clean the surface and rule out dust, fingerprints and reflections.
- Record the current brightness, color mode and output settings.
- Start in your normal environment, then adjust lighting if needed.
TV Screen Test
Start with dark scenes, compare local dimming, colors and motion, then confirm the input mode.
Check order
Keep viewing distance, ambient light and brightness consistent as you work through the checks.
What to check on TV
Keep your normal viewing distance. With a computer input, check resolution, HDR and the TV picture mode.
Observe and record
- Work from the center outwards, keeping the same viewing angle.
- Photograph physical defects. System screenshots cannot capture dead pixels.
- Cross-check with normal content and the warranty policy for your exact model.
Final checklist
TV: check questions
Can these checks replace professional testing?
No. The patterns support initial observation; use device specifications, normal content and suitable instruments for a final assessment.
Does one bright pixel qualify for a return?
Policies differ by brand, model and region. Refer to the product's warranty policy; no universal guarantee applies.
Can I use a phone, tablet or TV?
Open the patterns and guides for your device. True full screen and touch depend on the browser; an immersive page preview remains available when full screen is unsupported.
Do I need to install software or upload data?
No installation is needed. Patterns, calculations and interactions run locally in your browser; theme preferences stay on your device.
What should I do if I notice a problem?
Rule out dust, reflections and display settings. Repeat under the same conditions, photograph defects that remain in the same screen position and check the device warranty policy.