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How to test for backlight bleeding/brightness uniformity

post #1 of 2
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So, I was suspecting that one part of my screen was brighter than the rest of it, and wanted to check if I was just seeing things.

The attachment is a 7680x4800 (16:10) black PNG.

Close all the windows and cover them, turn off the light, and use full screen with this PNG and you'll clearly see backlight bleeding, and as a result, the brightness uniformity of your screen (some areas will have less of a "haze" on them).

It'll look something like this screenshot from xbit, but less obvious.
Akiyama Mio
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Akiyama Mio
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post #2 of 2
I just have a pair of black and white files I made in paint sized to the native res of my LCD, but this works too.
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