Why my screen appears to be the Hunchen Chen?

Why my screen appears to be the Hun Chenchen ~ ~ ~ show tune from the 75 Hz refresh to the other how to get it???? Looks very eyes ~

display brightness can be adjusted higher, and also add some color, it will display is bright and bright contrast to the other
tune about the display models as a result of differences in brands, Numerical difference will be great, as long as the landlord in accordance with their needs to be satisfied with the aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa