Check black levels, pixels, uniformity and backlight
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Black Screen Test
Check black levels, pixels, uniformity and backlight
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Display checks
What to look for
Dead Pixels
Look for bright or colored pixels against the black screen.
Uniformity
Check whether the screen appears evenly dark across the display.
Backlight Bleed
Inspect the corners and edges for unwanted light.
Black Levels
Use near-black shades to inspect shadow detail.