Backlight bleeding issues happened on Surface devices since the release of its Surface Pro 3. Microsoft seems can’t resolve this problem until 2017. Now many Surface Pro (2017) owners started posting their issues across the communities including Microsoft Support Forums, Reddit and so on.
According to the Surface Guy, a community user, the new Surface Pro (2017) get a severe backlight issues than the Surface Pro 4.
He also listed all Reddit’s discussion that talking about this issue on their devices.