Question Is this acceptable backlight bleed ?

What's your brightness level?

I have Acer XB270HU and run brightness at 80%.

Bleeding is normal with IPS to a certain degree, can get excessive bleed depending on brightness. Camera does exaggerate bleed though, just so you know.
 
Ok i have an acer kg242yp. I use 70 % brightness on the test. I heard it can lessen over time with 100 % brightness.