Does your iPhone 4/4S have uneven backlighting?

Have you noticed the slight difference in brightness between the top half and bottom half of your 4/4S screens? Of the multiple exampes I have looked at half seem to have uneven backlighting where the top section of the screen is darker. The rest had yellowish screens.
You can see it by going into Settings>General and turning your device to landscape mode. You can also check using any of the various flashlight apps but I find the dark text in Settings helps me to see it more clearly.

100% positively sure

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